EXHIBIT 99.516

                    INFORMATION TECHNOLOGY SERVICES AGREEMENT

       This Information Technology Services Agreement ("AGREEMENT"), dated as of
February 17, 2000 (the "AGREEMENT DATE"), is between Perot Systems Corporation
("PEROT SYSTEMS"), a Delaware corporation with its principal place of business
at 12404 Park Central Drive Dallas, Texas 75251, and the California Power
Exchange Corporation ("CALPX"), a California nonprofit public benefit
corporation with its principal place of business at 200 South Los Robles Avenue,
Suite 400, Pasadena, California 91101.

                                    ARTICLE 1
                         DEFINITIONS, AGREEMENT AND TERM

1.1    Certain Definitions. The terms set forth in Schedule 1.1 are defined as
       set forth in Schedule 1.1.

1.2    Agreement. CalPX shall purchase all of its requirements for information
       technology services related to application maintenance, application
       development program management and computer operations from Perot Systems
       during the Term in accordance with the terms of this Agreement except for
       the information technology services described in Schedule 1.2 ("EXCLUDED
       SERVICES").

1.3    Term. The term of this Agreement shall begin on February 28, 2000 at
       12:01 a.m., PST ("EFFECTIVE DATE") and shall end on February 27, 2003 at
       11:59 p.m., PST (the "INITIAL TERM") unless earlier terminated in
       accordance with the terms of this Agreement.

                                    ARTICLE 2
                        ACCOUNT MANAGEMENT AND PERSONNEL

2.1    Account Manager. Perot Systems shall designate an Account Manager
       ("ACCOUNT MANAGER") who shall be directly responsible for coordinating,
       managing and supervising the delivery of the Services and shall have
       frill authority to act on Perot Systems' behalf with respect to all
       matters relating to this Agreement. The Account Manager shall work with
       the CalPX Representative to address CalPX's information technology issues
       and strategies and the parties' relationship under this Agreement. The
       initial Account Manager shall be Dariush Shirmohammadi.

2.2    Change of Account Manager.

       a.     Unless CalPX agrees, Perot Systems shall not replace or reassign
              the Account Manager for a period of not less than 12 months after
              the date of his or her assignment to the CalPX account unless such
              Account Manager (a) voluntarily resigns his or her employment or
              terminates his or her contract of engagement with Perot Systems,
              (b) is dismissed by Perot Systems for misconduct, (c) fails to
              perform his or her duties and responsibilities pursuant to this
              Agreement, (d) dies or is unable to work due to his or her
              disability, or (e) independently initiates a request for
              reassignment for personal reasons.







       b.     Before assigning a replacement Account Manager, Perot Systems
              shall (a) notify the CalPX Representative of the proposed
              assignment, (b) introduce the individual to appropriate
              representatives of CalPX, and (c) provide the CalPX Representative
              with the qualifications and any other appropriate information
              regarding the individual that may be requested by the CalPX
              Representative. In the event the CalPX Representative does not
              approve of an individual which Perot Systems proposes to appoint
              as an Account Manager, Perot Systems shall in good faith select an
              alternate candidate and shall follow the procedure set forth in
              this subsection with respect to such candidate.

2.3    Perot Systems Key Employees. With respect to the persons identified in
       Schedule 2.4 (the "KEY PERSONNEL"), the parties agree as follows:

       a.     The individuals serving as Key Personnel shall each be dedicated
              to the CalPX account on a full-time basis.

       b.     Before assigning an individual, other than those individuals named
              in Schedule 2.4 as Key Personnel, as a replacement for any Key
              Personnel, Perot Systems shall (a) notify the CalPX Representative
              of the proposed assignment, (b) introduce the individual to the
              CalPX Representative and, (c) provide the CalPX Representative
              with the qualifications and any other appropriate information
              regarding the individual that may be requested by the CalPX
              Representative. If the CalPX Representative does not approve of
              the assignment of such individual as Key Personnel, Perot Systems
              shall in good faith select an alternate candidate and shall follow
              the procedure set forth in this subsection with respect to such
              candidate.

       c.     Unless CalPX agrees otherwise, Perot Systems shall not replace or
              reassign any individual assigned to the CalPX account as Key
              Personnel during a period of 12 months from the date of his or her
              assignment as Key Personnel unless such individual (a) voluntarily
              resigns from, or terminates his or her contract of engagement
              with, Perot Systems, (b) is dismissed by Perot Systems, (c) fails
              or is not qualified to perform his or her duties and
              responsibilities pursuant to this Agreement, (d) dies or is unable
              to work due to his or her disability, (e) independently initiates
              a request for reassignment for personal reasons, or (f) the
              services of such Key Personnel, in Perot Systems' reasonable
              opinion and with the concurrence of the CalPX Representative, are
              no longer required for the performance of this Agreement.

       d.     If, in CalPX's opinion, any individual assigned to the CalPX
              account as Key Personnel should not remain assigned to the CalPX
              account, then CalPX shall advise Perot Systems of such opinion,
              and Perot Systems shall promptly investigate the matter and take
              appropriate action which may include (a) removing such individual
              from his or her status as Key Personnel and notifying CalPX of
              such



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              removal and replacing such individual with another qualified
              individual; or (b) other appropriate disciplinary action.

       e.     Perot Systems shall maintain recruiting and replacement procedures
              for Key Personnel designed to assure an orderly succession in as
              prompt a manner as reasonably possible for any Key Personnel who
              resign or are replaced.

2.4    PSC Personnel. Perot Systems shall assign qualified personnel as PSC
       Personnel to perform the Services under this Agreement. On a quarterly
       basis, Perot Systems shall provide to the CalPX Representative a list of
       all PSC Personnel dedicated full-time to the CalPX account.

2.5    Conduct and Removal of PSC Personnel.

       a.     While on CalPX premises, Perot Systems shall use reasonable
              commercial efforts to cause the PSC Personnel to comply with the
              reasonable requests and standard rules and regulations of CalPX
              regarding safety, health and personal conduct generally applicable
              to CalPX and vendor personnel working at such CalPX premises,
              including (i) subject to each individual person serving as PSC
              Personnel being provided with a copy, complying with the CalPX
              Employee Code of Conduct, (ii) wearing an identification badge,
              and (iii) otherwise conducting themselves in a businesslike
              manner.

       b.     Perot Systems shall cause the PSC Personnel to comply with (a) the
              confidentiality provisions of this Agreement, and (b) CalPX's
              computer security procedures, a current copy of which is attached
              as Schedule 2.5, as amended by CalPX from time to time.

       c.     If CalPX reasonably determines that any PSC Personnel are not
              conducting themselves in accordance with this Section, CalPX shall
              notify Perot Systems of the non-compliant conduct. Upon receiving
              such notice, Perot Systems shall promptly investigate the matter
              and take appropriate disciplinary action which may include (a)
              removing the applicable person from the CalPX account, providing
              CalPX with notice of such removal, and replacing him or her with
              another qualified person, or (b) other disciplinary action
              reasonably anticipated to prevent a recurrence. If there are
              repeated violations of this Section by a particular individual,
              Perot Systems shall remove the individual from the CalPX account.
              Perot Systems shall notify the CalPX Representative immediately
              after dismissing or reassigning any PSC Personnel whose normal
              work location is at a CalPX service location. Except as otherwise
              approved by CalPX, those PSC Personnel located on CalPX's premises
              may only provide services on such premises which support CalPX's
              operations.

2.6    CalPX Representative. CalPX shall designate a representative ("CALPX
       REPRESENTATIVE") who shall have overall responsibility for managing and
       coordinating the performance of CalPXs obligations under the Agreement,
       including determining prioritization of certain of the Services, and
       shall have full authority to act on CalPX's behalf with respect to all
       matters relating to this



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       Agreement. The CalPX Representative shall work with the Account Manager
       to address CalPX's information technology issues and strategies and the
       parties' relationship under this Agreement The initial CalPX
       Representative shall be Daniel Yee. The CalPX Representative may delegate
       such of his or her responsibilities to another officer or director of
       CalPX with notice to Perot Systems.

2.7    Transfer of Personnel.

       (a)    Perot Systems shall offer employment to CalPX's employees who are
              listed in Part A of Schedule 2.3 in accordance with Perot Systems'
              standard employment policies as of the Effective Date, and in
              accordance with Schedule 2.7. Such offer of employment shall be
              made on or before February 22, 2000. Perot Systems shall request
              that these employees accept the offer of employment by the close
              of business of CalPX on February 24, 2000, which acceptance shall
              be effective as of 12:01 a.m., PST, on February 28, 2000.

       (b)    Perot Systems shall use reasonable commercial efforts to engage as
              independent contractors or employees the contract personnel who
              are listed in Part B of Schedule 2.3 in accordance with Perot
              Systems' standard independent contractor agreement. Perot Systems
              shall offer to engage or employ such contract personnel, or notify
              CalPX of its decision not to engage or employ such contract
              personnel, within two business days of the Agreement Date.

       (c)    Those CalPX employees listed in Schedule 2.3 who accept Perot
              Systems' offer of employment are referred to collectively as the
              "TRANSITIONED EMPLOYEES" and those CalPX employees who do not
              accept such offers of employment are referred to collectively as
              the "NON-TRANSITIONED EMPLOYEES." CalPX shall cooperate with Perot
              Systems in connection with Perot Systems making such offers. CalPX
              shall not make any representations to the Transitioned Employees
              relating to the terms of employment by Perot Systems. If any
              Transitioned Employee is terminated by Perot Systems within six
              months after the Effective Date, CalPX shall reimburse Perot
              Systems for severance costs as same may be incurred by Perot
              Systems in accordance with Perot Systems' standard employment
              policies as of the Effective Date. CalPX shall reimburse the
              severance paid by Perot Systems after presentation of an invoice
              with supporting documentation in accordance with Section 5.7.

2.8    Subcontractors. Perot Systems may engage independent third parties or one
       or more of its Affiliates to perform as a subcontractor to Perot Systems
       any part of the Services or other obligations to be performed by Perot
       Systems under this Agreement, provided that:

       (a)    Perot Systems' Account Manager shall obtain the CalPX
              Representative's prior approval of any subcontractor (other than
              an Affiliate controlled by Perot Systems) that Perot Systems
              reasonably expects, at the time of the initial engagement, shall
              be paid more than $250,000 during the term of the agreement under
              which such



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              subcontractor is engaged or, in the case of multiple agreements
              with a single subcontractor, during any 12 month period. Such
              approval shall not be necessary for Affiliates controlled by Perot
              Systems unless otherwise agreed in the Change Control Procedure.

       (b)    Perot Systems shall be frilly responsible for the work and
              activities of its subcontractors, including the compliance of such
              subcontractors with the terms of this Agreement. Perot Systems
              shall use commercially reasonable efforts to keep CalPX's property
              free from liens arising in connection with the Services performed
              by Perot Systems under this Agreement.

2.9    Restrictions on Hiring. Except as otherwise specifically provided in this
       Agreement, Perot Systems and CalPX each agree not to hire or recruit the
       other's employees with whom Perot Systems or CalPX came into contact in
       connection with the activities contemplated by this Agreement until the
       earlier of a) six months after the end of the Term; and b) six months
       after such employee is no longer employed by the applicable party,
       without, in each case, the prior written consent of the other party.

                                    ARTICLE 3
                                    SERVICES

3.1    Base Services. During the Term, Perot Systems shall provide the Core
       Services and up to the number of Full-Time Equivalent PSC Personnel shown
       in Schedule 5.1 to perform Applications Development services, and
       Business Consulting services (collectively, "BASE SERVICES") at CalPX's
       offices in Alhambra, California; Pasadena, California; Perot Systems'
       Richardson Information Management Facility ("RIMF"), and such other Perot
       Systems offices and data centers as the parties mutually agree.

       (a)    Core Services are defined as:

              (i)    the Program Management Services described in Part A of
                     Schedule 3.1;

              (ii)   the Computer Operations Services described in Part B of
                     Schedule 3.1;

              (iii)  the Applications Maintenance Services described in Part C
                     of Schedule 3.1; and

              (iv)   the IT Procurement Services.

       (b)    Applications Development Services are described in Part D of
              Schedule 3.1; and

       (c)    Business Consulting Services are described in Part E of Schedule
              3.1.

3.2    Service Levels.

       (a)    In the absence of adequate historical data from the operation of
              CalPX's Systems, the parties agree to use the service levels set
              forth in Schedule 3.2 ("SERVICE LEVELS") for the Services. These
              Service Levels have been selected based upon industry data and a



                                       5




              partial analysis of the operation of CalPX's Systems and the
              number of PSC Personnel assigned to perform the Services. During
              the first 120 days after the Effective Date ("TRANSITION PERIOD"),
              Perot Systems and CalPX shall diligently and in good faith
              negotiate any changes to the Service Levels that are required to
              reflect the actual operation of CalPX's Systems during the
              six-month period prior to the Effective Date. After the Transition
              Period, Perot Systems shall meet or exceed the mutually agreed
              Service Levels with respect to the Services. The addition of any
              Service Level not set forth on Schedule 3.3 as of the Effective
              Date shall require an amendment to this Agreement.

       (b)    Perot Systems shall be excused from its obligation to perform the
              Computer Operations Services in accordance with the Service Levels
              to the extent that it can not meet such Service Levels as a result
              of actions or failures to act by CalPX in accordance with this
              Agreement or by a third party other than Perot Systems or PSC
              Personnel; including any failure to obtain any access described in
              Section 4.2(b) or Force Majeure Event.

       (c)    As contemplated by the Change Control Procedure, (i) any Change
              Order implementing service or resource additions or reductions
              requested by CalPX and any other Change Order changing the manner
              in which the Core Services are provided by Perot Systems shall
              include an appropriate adjustment to the applicable Service
              Levels, and (ii) Perot Systems shall review with CalPX as part of
              the Change Order Procedure the anticipated effect of such
              reduction, addition or change on Perot Systems' ability to meet
              the applicable Service Levels.

       (d)    If Perot Systems fails to meet any Service Level, Perot Systems
              shall (i) promptly investigate and perform a root-cause analysis
              to identify the cause of the failure; (ii) provide to CalPX a
              report on the causes of the problem; (iii) correct the problem, to
              the extent such problem is within its control, or take appropriate
              steps to cause the problem to be corrected to the extent such
              problem is not within its control; (iv) to the extent within its
              control, take appropriate preventive measures to reduce the
              probability of a recurrence of the problem; (v) take appropriate
              actions to mitigate the adverse effects of the problem prior to
              its correction; and (vi) periodically advise the CalPX
              Representative of the status of remedial efforts being undertaken
              with respect to such problems.

3.3    Additional Services.

       (a)    Perot Systems shall provide to CalPX such additional services that
              are beyond the scope of the Base Services ("ADDITIONAL SERVICES")
              as Perot Systems and CalPX from time to time agree in writing.
              Base Services, Additional Services, and any Transition Assistance
              provided under Section 7.11 are collectively referred to herein as
              "SERVICES."



                                       6




              Upon identifying a need for information technology or business
              consulting services outside the scope of the Base Services, the
              Account Manager and the CalPX Representative shall coordinate the
              preparation of a document identifying, in reasonable detail, the
              services to be performed, the specific hardware, software and
              third party services to be delivered as part of such services, and
              the objective completion criteria to be applied in connection with
              such services. This document shall be reviewed by the IT Steering
              Committee.

       (b)    Perot Systems acknowledges and agrees that CalPX prefers to use
              commercial off-the-shelf software, rather than custom-designed
              solutions, to meet its requirements whenever and wherever
              practical, and Perot Systems shall use reasonable commercial
              efforts to identify commercial off-the-shelf software products
              that are suitable for use by CalPX as part of any proposal to
              provide Additional Services.

       (c)    If CalPX, in its sole and absolute discretion, chooses to
              terminate the contract of any third party vendor that is providing
              desktop, network or telecommunications information technology
              services, or such contract expires in accordance with its terms,
              and CalPX (i) desires to obtain such services from another third
              party and (ii) determines in its reasonable discretion that Perot
              Systems has the appropriate expertise and resources to provide
              such services, then CalPX and Perot Systems shall commence good
              faith negotiations for Perot Systems to provide such services. In
              the event that following such good faith negotiations, the parties
              shall not have reached agreement on the terms of Perot Systems
              providing such services within 30 days of the commencement of such
              negotiations, then CalPX shall have the right to enter into an
              agreement with a third party to provide such services; provided
              that prior to entering into a definitive agreement for the
              provision of such services Perot Systems shall be offered the
              opportunity to resubmit another proposal for the provision of such
              services. CalPX acknowledges and agrees that Perot Systems has, as
              of the Effective Date, the technical capability and experience to
              perform the Desktop Support Services and Desktop Procurement
              Services.

       (d)    Additional Services will be performed under individual written
              task order ("TASK ORDERS") that are approved and issued in
              accordance with this Section 3.3 and the Change Control Procedure.
              Each Task Order shall identify, in reasonable detail, the services
              to be performed, the specific hardware, software and third party
              services to be delivered as part of such services, and the
              objective completion criteria to be applied in connection with
              such services, in addition to the price, reimbursable expenses and
              pass-through expenses to be paid by CalPX for such Additional
              Services. Perot Systems will commence the Additional Services upon
              execution of the Task Order by CalPX and Perot Systems.

3.4    Change Control Procedure.



                                       7






       (a)    All Changes (as defined herein) shall be reviewed by the Change
              Review Board. All Change Orders shall be reviewed and approved in
              writing by the Account Manager and CalPX Representative. The
              budgetary and schedule effects of reasonably interrelated Change
              Orders shall be aggregated to determine whether the CalPX
              Representative or the Change Review Board should review such
              Change Orders. The parties shall use their reasonable commercial
              efforts to minimize any adjustments to development schedules,
              development budget and application requirements. Change Orders may
              be approved electronically by the Account Manager and the CalPX
              Representative.

       (b)    During the first 30 days after the Effective Date, Perot Systems
              shall prepare and deliver to the Change Review Board, for its
              review and approval, the Change Control Procedures to be used
              under this Agreement to control Changes in scope, schedule and
              cost of the Services. The Change Control Procedures shall provide,
              at a minimum, that (i) all Changes, including Changes to the
              Change Control Procedures, shall be made pursuant to the Change
              Control Procedures, except as may be necessary on an emergency
              basis; (ii) no Change which is reasonably expected to materially
              or adversely affect the function or performance of any System or
              result in a material increase in the charges to CalPX under this
              Agreement shall be implemented without the Change Review Board's
              approval, except as may be necessary on an emergency basis; (iii)
              all Changes, except those made as necessary on an emergency basis,
              shall be implemented in accordance with a schedule provided to the
              Change Review Board periodically and under circumstances that are
              reasonably expected not to interrupt CalPX's business operations
              materially; and (iv) the Account Manager shall give the Change
              Review Board prompt notice (which may be given orally, provided
              that any oral notice is confirmed in writing within five business
              days) of any Change made as necessary on an emergency basis.

       (c)    Changes to the application requirements, development budget, or
              development schedule shall be made only by mutual agreement of the
              affected parties through the use of a Change Order. All requests
              for Changes by a party shall be communicated by the Account
              Manager or CalPX Representative, as the case may be, to the CalPX
              Representative or Account Manager, as the case may be, or the
              Change Review Board as appropriate. No party shall have any
              obligation or authority to implement Changes requested through any
              other means.

       (d)    Requests for Change Orders shall be submitted for review in
              accordance with the Change Control Procedure, and shall include
              the following information: (i) a detailed description of the
              Change requested, (ii) the business, technical or financial
              justification for the Change requested, (iii) the price, capital
              and operating costs associated with the Change requested, (iv) the
              projected schedule impact of the Change requested, and (v) the
              priority of the Change requested.



                                       8





       (e)    Within ten business days (or such longer period as is mutually
              agreeable) after receiving a request from CalPX for a Change
              Order, Perot Systems shall prepare and provide to CalPX's
              Representative or the Change Review Board a document summarizing
              the effect, if any, of the proposed Change on (i) the development
              schedule, including but not limited to CalPX's obligations under
              the development schedule, (ii) the functionality and requirements
              of the applicable System to be delivered, and (iii) the
              development budget. In addition, Perot Systems shall inform CalPX
              regarding any other business impact that Perot Systems believes to
              be relevant to an evaluation of the Change Order. The CalPX
              Representative or the Change Review Board, as the case may be,
              shall review the information and, as the Change Review Board deems
              necessary, revise it at the next succeeding Change Review Board
              meeting and promptly forward its report on the proposed Change to
              CalPX. Within ten business days or such longer period as is
              mutually agreeable to the parties, after receiving such
              information, CalPX shall approve, reject or withdraw the request
              for such Change Order. CalPX's failure to approve, reject or
              withdraw the request within the applicable time period shall be
              deemed a withdrawal of such request.

       (f)    Upon submitting a request for a Change Order initiated by Perot
              Systems, Perot Systems shall provide to CalPX a document
              summarizing the effect, if any, on (i) the development schedule,
              including but not limited to CalPX's obligations under the
              development schedule, (ii) the functionality and requirements of
              the applicable System to be delivered, and (iii) the development
              budget. In addition, Perot Systems shall inform CalPX regarding
              any other business impact that it believes to be relevant to an
              evaluation of the Change Order. The Change Review Board shall
              review the information and, as the Change Review Board deems
              necessary, revise it at the next succeeding Change Review Board
              meeting and promptly forward its report to CalPX. Within ten
              business days after receiving such information (or within ten
              business days after receiving the Change Review Board's report, in
              the case of a Change request reviewed by the Change Review Board),
              CalPX shall approve or reject the requested Change Order. CalPX's
              failure to approve or reject the requested Change Order within the
              applicable time period shall be deemed a rejection of such
              request.

       (g)    In any case where no final agreement has been reached on a Change
              request but the CalPX Representative nonetheless orders Perot
              Systems to carry out such Change, Perot Systems shall use its
              commercially reasonable efforts to carry out such Change within
              the time requested by CalPX at the price and related terms
              proposed by Perot Systems, and either party may refer the disputed
              Change request to the procedures provided in Section 7.2 and 7.3.

3.5    IT Procurement Services. At CalPX's written request, Perot Systems shall
       purchase, lease or license equipment, software, services and supplies
       from Perot Systems' suppliers on behalf of



                                       9



       CalPX and for CalPX's account or shall facilitate the purchase, lease or
       license of such items by CalPX at the prices available to Perot Systems
       (the "IT PROCUREMENT SERVICES").

3.6    Management Procedures Manual. On or before the end of the Transition
       Period and as part of the Services, (1) CalPX and Perot Systems shall
       establish procedures pursuant to which mutually agreed policies of CalPX
       and Perot Systems shall be adhered to during the Term, and (2) Perot
       Systems shall prepare and deliver to CalPX, for CalPXs approval, a
       management procedures manual (the "MANAGEMENT PROCEDURES MANUAL")
       generally describing (a) the Services, (b)the computer hardware and
       software environments in which the Services will be performed, (c) the
       documentation, if any, which provides further details regarding the
       Services or computer hardware and software environment in which the
       Services will be performed, (d) the procedures Perot Systems intends to
       use to manage the Services, and (e) the management reporting system that
       Perot Systems shall use to manage this Agreement and communicate to
       CalPX. Perot Systems and CalPX shall update the Management Procedures
       Manual whenever necessary to reflect any changes in the operations or
       procedures described therein within a reasonable time after such changes
       are made.

3.7    Reports. Perot Systems shall provide to CalPX performance, utilization
       and status reports relating to the Services and Service Levels as
       requested by CalPX in a form acceptable to CalPX.

3.8    Improved Technology. As part of the Services, Perot Systems shall provide
       CalPX with information about, and recommendations regarding, information
       technology developments that could reasonably be expected to have a
       favorable impact on CalPXs information technology operations for CalPXs
       consideration and evaluation, including information regarding any new
       information technology developments that are not subject to third party
       confidentiality restrictions made generally available by Perot Systems
       for use by Perot Systems' customers. In addition, Perot Systems shall
       meet with CalPX at least twice per year during the Term to inform CalPX
       of any new information technology developments that are not subject to
       third party confidentiality restrictions which Perot Systems is
       developing and any appropriate information processing trends and
       directions of which Perot Systems is aware.

3.9    Changes in Law and Regulations.

       (a)    Perot Systems shall identify and notify CalPX of any changes in
              any laws or regulations applicable to Perot Systems or its
              operating procedures that could adversely affect the use or
              delivery of the Services. CalPX shall identify and notify Perot
              Systems of any changes in any laws or regulations applicable to
              CalPX or its operating procedures that require changes to the way
              in which the Services are provided by Perot Systems. Perot Systems
              and CalPX shall work together to identify the impact of any such
              laws or regulations on how CalPX uses, and Perot Systems delivers,
              the Services. Each party shall be responsible for any fines and
              penalties arising from its failure to comply with any laws or
              regulations applicable to its business operations relating to the
              delivery or use of the Services.



                                       10



       (b)    If any changes in laws or regulations prevent Perot Systems from
              performing its obligations under this Agreement, Perot Systems
              shall (i) use commercially reasonable efforts to continue to
              perform the Services and (ii) develop and, upon CalPXs approval,
              implement a suitable workaround for its obligations under this
              Agreement that cannot be performed until such time as Perot
              Systems can perform its obligations under this Agreement without
              such workaround. If the applicable change in law or regulatory
              requirements is applicable to Perot Systems, then Perot Systems
              shall develop and implement such workaround at its own expense. If
              the applicable change in law or regulatory requirements is
              applicable to CalPX and such change results in additional costs to
              Perot Systems to perform its obligations under this Agreement,
              then CalPX shall pay Perot Systems for its incremental costs
              incurred in connection with making the appropriate changes as part
              of the Base Services or as an Additional Service, as the case may
              be.

3.10   Technical Standards. Perot Systems shall comply with CalPXs information
       management technical architecture and product standards in effect on the
       Agreement Date and as amended pursuant to the Change Control Procedure
       during the Term.

3.11   Knowledge Sharing. At least once every year, and on request after at
       least 30 days' notice from CalPX, Perot Systems shall meet with
       representatives of CalPX to explain, at an executive level, how (1) the
       Systems are designed and operate, and (2) the Services are provided.

3.12   Customer Satisfaction.

       (a)    Within 90 days after the Effective Date, Perot Systems shall
              conduct a survey to measure end-user satisfaction with the
              Services at each CalPX site. The survey shall contain questions,
              and shall be administered according to procedures, mutually agreed
              by CalPX and Perot Systems within 60 days after the Agreement
              Date. Perot Systems shall promptly share the results of each such
              survey with CalPX, including, without limitation, copies of the
              user questionnaires completed by any CalPX personnel.

       (b)    At least annually during the Term, Perot Systems shall conduct a
              survey to measure end-user satisfaction with the Services and
              Perot Systems' responsiveness to requests for Services at each
              CalPX site. The survey shall contain questions to be agreed upon
              by CalPX and Perot Systems no later than 30 days before the date
              on which the survey is scheduled to begin. Perot Systems shall
              promptly share the results of each such survey with CalPX,
              including, without limitation, copies of the user questionnaires
              completed by any CalPX personnel. The content, scope, and method
              of each such survey shall be consistent with the baseline customer
              survey conducted under Section 3.12(a), and the timing of the
              surveys shall be subject to mutual agreement.



                                       11

         (c)      During the last six months of the Term, CalPX may initiate at
                  its expense a third-party review of the Services being
                  performed by Perot Systems. If CalPX initiates such a review,
                  CalPX shall, within five business days after sending notice of
                  such election, provide Perot Systems with a list of three
                  unbiased third party benchmarkers acceptable to CalPX, none of
                  whom shall be competitors to Perot Systems. Perot Systems
                  shall select one of such third party benebmarkers to be
                  engaged by CalPX. CalPX and Perot Systems shall negotiate in
                  good faith to determine jointly the information to be provided
                  to the benchmarker (the "BENCHMARK INFORMATION") and the scope
                  and cost of the review, and shall (1) review the Benchmark
                  Information and (2) schedule a meeting to address any issues
                  either party may have with respect to the Benchmark
                  Information. The benchmarker shall review the scope and level
                  of Services then being provided under this Agreement, the
                  total number of personnel assigned to perform those Services,
                  and the charges for the Services and any other appropriate
                  information related to this Agreement and compare the scope
                  and level of Services, the total number of personnel assigned
                  to perform such Services, and the charges for the Services
                  against similar services that are performed by other frill
                  service information technology outsourcing providers who
                  compete with Perot Systems in similar markets in a similar
                  period. The benchmarker results shall be treated as
                  Confidential Information.

3.13     Regular Improvement. Perot Systems shall, on a regular basis (1)
         identify processes, techniques, equipment and software that could
         improve the Services and Service Levels and (2) recommend for adoption
         or acquisition non-confidential processes, techniques, equipment,
         software and tools used by Perot Systems that could improve or lower
         the cost of CalPX's technology operations. Perot Systems shall, from
         time to time, include the information required by this Section 3.13 in
         appropriate reports provided to CalPX under this Agreement.


                                    ARTICLE 4
                             CALPX RESPONSIBILITIES

4.1      Cooperation. CalPX shall keep Perot Systems informed, as reasonably
         appropriate, about those aspects of CalPX's business that could
         reasonably have a material effect on the demand for, or provision of,
         the Services. CalPX shall cooperate with Perot Systems to ensure that
         the Change Control Procedure and other processes relating to the
         Services that are dependent upon information from CalPX are not
         unreasonably delayed by CalPX.

4.2      Access to Software

         (a)      CalPX Proprietary Software. CalPX shall provide Perot Systems
                  with access to, and the necessary rights to operate, modify,
                  and enhance, its proprietary software



                                       12


listed in Part A of Schedule 4.2 and such other proprietary software of CalPX as
is necessary for Perot Systems to perform its obligations under the Agreement
("CALPX PROPRIETARY SOFTWARE"). CalPX shall pay any access or other fees
associated with obtaining such rights to the CalPX Proprietary Software. CalPX
shall pay all license, maintenance and other fees associated with the CalPX
Proprietary Software.

         (b)      CalPX Vendor Software. CalPX shall provide Perot Systems with
                  access to, and the necessary rights to operate and, where
                  necessary to perform the Services to modify and to enhance,
                  its vendor software listed in Part B of Schedule 4.2 and such
                  other vendor software as is necessary for Perot Systems to
                  perform its obligations under the Agreement ("CALPX VENDOR
                  SOFTWARE") and shall pay any access or other fees associated
                  with obtaining such rights to the CalPX Vendor Software. CalPX
                  shall pay all license, maintenance and other fees associated
                  with the CalPX Vendor Software. Except as contemplated by this
                  Section 4.2(b), Perot Systems' access to, and other rights in
                  respect of, CalPX Vendor software shall be subject to the
                  terms of the applicable software license agreement between
                  CalPX and the applicable vendors. If CalPX is unable to obtain
                  the rights described in this paragraph (b), (i) Perot Systems
                  shall be relieved of any obligations under this Agreement that
                  cannot be performed in the absence of such rights without
                  violating a third person's intellectual property or other
                  rights, and (ii) CalPX and Perot Systems shall work together
                  in good faith to find an alternative way for CalPX to obtain
                  any Services that Perot Systems cannot perform in a manner
                  that is reasonably satisfactory to both parties.

4.3      Access to CalPX Facilities. CalPX shall provide Perot Systems access to
         its facilities and shall provide to all PSC Personnel performing
         Services at such facilities, without charge, such office furnishings,
         janitorial service, telephone service, utilities (including air
         conditioning) and office-related equipment (including but not limited
         to personal computers and related software, peripherals and supplies
         and facsimile machines), supplies, and duplicating services as Perot
         Systems may reasonably require in connection with the activities
         contemplated hereunder. Unless otherwise agreed, CalPX shall not be
         obligated to provide such facilities for PSC Personnel performing
         Services at the RIIMF (or another Perot Systems data center), (ii)
         Business Consulting Services, or (iii) any Services on a part-time
         basis, except as may be necessary on a short-term, shared basis. CalPX
         shall procure and purchase at its sole cost and expense all the
         necessary hardware and software of CalPX reasonably required by Perot
         Systems to provide the Services. CalPX shall provide such access 24
         hours a day, seven days a week. Perot Systems shall obey all generally
         applicable rules and procedures at any CalPX facility of which CalPX
         has notified Perot Systems. CalPX agrees that such CalPX facilities
         shall comply with all applicable laws and regulations. Access and
         equipment requirements shall be handled through the Change Control
         Procedure. PSC Personnel shall receive similar technologies to those
         currently in use or contemplated at CalPX.



                                       13


4.4      Access to Technology. CalPX shall provide Perot Systems with access to
         its hardware, equipment, and technology related items and services
         listed in Schedule 4.4 and such other hardware, equipment and
         technology related items and services as otherwise reasonably necessary
         for Perot Systems to perform its obligations under this Agreement (the
         "CALPX TECHNOLOGY"). CalPX shall pay all costs and expenses, including
         without limitation, maintenance costs, associated with the CalPX
         Technology.

4.5      Required Improvements. CalPX shall implement, or cause to be
         implemented, each of the process, infrastructure, testing and project
         management improvements described in Schedule 4.5, and the initiation
         of the maintenance windows set forth in Schedule 4.5 ("REQUIRED
         IMPROVEMENTS"), If CalPX does not implement, or cause to be implemented
         the Required Improvements, the provisions of Section 5.3(b) shall not
         apply until after the Required Improvements have been implemented. The
         estimates of additional expenditures, implementation times and
         requirements for additional Full-Time Equivalent resources set forth in
         Schedule 4.5 as to Required Improvements are subject to change in
         accordance with the Change Control Procedures. CalPX agrees to provide
         funding for those Required Improvements that require additional
         expenditures or additional external resources. Upon the request of
         CalPX, Perot Systems agrees to provide the additional external
         resources as Application Development and Business Consulting Services
         under this Agreement. Expenditures for hardware, software and third
         party services to implement the Required Improvements shall be the
         responsibility of CalPX.

                                    ARTICLE 5
                            PAYMENTS TO PEROT SYSTEMS

5.1      Base Services Fees.

         (a)      During the Transition Period and thereafter until the Required
                  Improvements are completed, Perot Systems shall invoice CalPX
                  on or before the 10th day of each month the Calculated
                  Services Fee for each of the Core Services, the Application
                  Development Services and the Business Consulting Services
                  provided during the previous month. After the Transition
                  Period and the Required Improvements have been completed,
                  Perot Systems shall invoice CalPX on or before the 10th day of
                  each month for (i) an amount equal to the Baseline Budget per
                  month for the Core Services to be provided during the
                  following month, plus (ii) the Calculated Services Fee for
                  each of the Application Development Services and the Business
                  Consulting Services provided during the previous month.

         (b)      After the Transition Period and the Required Improvements have
                  been completed, the invoice for the first month of each
                  calendar quarter shall reflect any credit due to CalPX, and
                  any additional amount payable by CalPX, for all adjustments to
                  the previously invoiced amounts that are required under this
                  Agreement, including but not limited to any adjustments
                  required pursuant to Section 5.3 (the "QUARTERLY TRUE-



                                       14


                  UP"). Perot Systems shall not modify any previously prepared
                  Quarterly True-Up, subject to the provisions of Section 5.8.

5.2      Additional Services Charges. During the Term, CalPX shall pay Perot
         Systems each month for the Additional Services the amounts agreed to by
         CalPX and Perot Systems at the times agreed to by Perot Systems and
         CalPX. Additional Services shall be provided on a time and materials
         basis using Perot Systems' "STANDARD COMMERCIAL RATES", less a 25%
         discount. Perot Systems may adjust the Standard Commercial Rates no
         more often than once per year, beginning in the second year of the
         Term, with 60 days advance written notice.

5.3      Performance Bonuses and Credits.

         (a)      CalPX and Perot Systems have established the "BASELINE BUDGET"
                  set forth in Schedule 5.1, which represents CalPX's good faith
                  projection of the fixed and variable costs and expenses that
                  would have been incurred or paid by CalPX to perform the Core
                  Services on a monthly basis in the absence of this Agreement,
                  minus a level of savings projected in good faith to be
                  achievable as a result of the Required Improvements and other
                  improvements initiated by Perot Systems. The Baseline Budget
                  shall be adjusted annually as provided in Section 5.6.

         (b)      if during any calendar quarter in which the Calculated Service
                  Fees for the Core Services (calculated in accordance with
                  paragraph A of Schedule 5.1) are less than the Baseline Budget
                  for the Core Services, as adjusted in accordance with Section
                  5.6, for that calendar quarter, then Perot Systems shall
                  credit CalPX an amount equal to one-half of the amount by
                  which the applicable Baseline Budget exceeds such Calculated
                  Service Fees. The credit shall be issued on the first invoice
                  issued to CalPX following the completion of that calendar
                  quarter; provided that no such credit shall be issued until
                  after the Transition Period and the Required Improvements have
                  been completed.

         (c)      If during any calendar quarter the Calculated Service Fees for
                  the Core Services (calculated in accordance with paragraph A
                  of Schedule 5.1) are greater than the Baseline Budget for the
                  Core Services, as adjusted in accordance with Section 5.6, for
                  that calendar quarter, then CalPX shall pay Perot Systems an
                  amount equal to one-half of the amount by which the applicable
                  Calculated Service Fees exceed the applicable Baseline Budget,
                  which amount shall be included on the first invoice issued to
                  CalPX following the completion of that calendar quarter.

5.4      Reimbursable Expenses. CalPX shall pay or reimburse Perot Systems for
         its reasonable out-of pocket travel and travel related expenses
         incurred in connection with its performance of the Services that arise
         in connection with any travel by the PSC Personnel outside of the
         greater Los Angeles area requested by CalPX. Notwithstanding the
         preceding sentence, CalPX shall not pay or reimburse Perot Systems for
         travel or travel-related costs incurred by PSC Personnel assigned to
         perform the Base Services for travel within the Los Angeles area.
         Unless otherwise



                                       15


         agreed, any expenses shall be reimbursed according to CalPX Expense and
         Reimbursement Policy, attached as Schedule 5.4, as amended from time to
         time.

5.5      Taxes. There shall be added to any charges payable by CalPX under this
         Agreement, and CalPX shall pay or reimburse to Perot Systems, amounts
         equal to any taxes, however designated or levied based upon such
         charges, the Services, or this Agreement, including state and local
         taxes, and any taxes or amounts in lieu thereof paid or payable by
         Perot Systems in respect of the foregoing, excluding franchise taxes
         and taxes based on the net income of Perot Systems. Each party shall
         cooperate with the other in minimizing any applicable tax and, in
         connection therewith, CalPX shall provide Perot Systems any resale
         certificates, information regarding out-of-state use of materials,
         services or sales, or other exemption certificates or information
         reasonably requested by Perot Systems.

5.6      Cost of Living Adjustment If the Price Index at the end of each one
         year period following the Effective Date ("CURRENT INDEX") is higher
         than the Price Index at the beginning of such one year period ("BASE
         INDEX"), then, effective as of the end of such one year period, all
         charges hereunder shall be increased by the percentage that the Current
         Index increased from the applicable Base Index. "PRICE INDEX" means the
         index entitled "Private Industry, Wages and Salaries, 12-Month Percent
         Change, Not Seasonally Adjusted," published by the Bureau of Labor
         Statistics. If the publisher of this index should stop publishing or
         substantially change the content or format of the index, the parties
         shall substitute therefor another comparable measure published by a
         mutually acceptable source; provided, however, that if such change is
         merely to redefine the base year for the Price Index to another year,
         the parties shall continue to use the Price Index but shall, if
         necessary, adjust the Base Index and Current Index as reasonably
         appropriate.

5.7      Time of Payment. All amounts due hereunder shall be due within 30 days
         after receipt by CalPX of an invoice therefor. An invoice shall be
         deemed to be received in accordance with the terms of Section 12.2,
         provided that all invoices shall be addressed to the attention of the
         CalPX Chief Financial Officer. CalPX shall deliver a CalPX check to the
         Account Manager at CalPX's offices in Pasadena on the due date and
         Perot Systems shall not charge CalPX for overnight courier. Amounts not
         paid when due shall incur interest until paid at the lesser of (i) 1.5%
         per month, or (ii) the maximum rate permitted by applicable law. If any
         amount not paid when due under this Agreement is disputed in good
         faith, interest shall not begin to accrue until the dispute has been
         resolved.

5.8      Audit of Charges. Within 30 days after the Effective Date, Perot
         Systems and CalPX shall agree as to the documentation that Perot
         Systems will provide to CalPX each month in support of its charges
         under this Agreement, including reimbursable expenses. Upon notice from
         CalPX, Perot Systems shall provide CalPX and its representatives
         (collectively, the "CALPX AUDITORS") with access to such financial
         records and supporting documentation as may reasonably be requested by
         the CalPX Auditors, and the CalPX Auditors may audit reasonably
         appropriate books and records of Perot Systems for the purpose of
         verifying that any amounts charged under this Agreement with respect to
         the Services are accurate



                                       16


         and in accordance with this Agreement. If, as a result of such audit,
         CalPX determines that Perot Systems has overcharged or undercharged
         CalPX, CalPX shall notify Perot Systems of the amount of such
         overcharge or undercharge and Perot Systems or CalPX, as the case may
         be, shall promptly pay the amount due. In addition, if any such audit
         reveals an overcharge to CalPX of five percent or more of the aggregate
         amount of the invoices audited, Perot Systems shall reimburse CalPX for
         the cost of such audit.

5.9      Pass-Through Expenses. Perot Systems shall review all IT vendor
         invoices for Pass-Through Expenses, including but not limited to
         invoices relating to IT Procurement Services, to determine whether the
         charges reflected in such invoices comply in all material respects with
         the applicable purchase documentation or contract. After completing its
         review, Perot Systems shall submit an invoice to CalPX for such IT
         vendor invoices, together with Perot Systems' recommendation for
         payment, nonpayment, or partial payment, to CalPX twice per month on or
         about the fifth and twentieth days of the month for CalPX's review and
         payment. CalPX shall promptly review and pay the invoices submitted to
         it (or advise Perot Systems' Account Manager that an invoice is not
         approved, with an explanation of the reasons for not approving the
         invoice).

5.10     Adjustment of Budget.

         (a)      During any 12-month period commencing as of the Effective
                  Date, CalPX may, in one or more installments, reduce the
                  Baseline Budget (as adjusted in accordance with Section 5.6)
                  as of the beginning of such 12-month period by a percentage
                  amount up to a percentage equal to the sum of (i) 5% (the
                  "REDUCTION PERCENTAGE"), plus (ii) the aggregate number of
                  percentage points, if any, for all of the unused portions of
                  the Reduction Percentages with respect to all previous
                  12-month periods, provided that CalPX may not exercise such
                  right to reduce the Baseline Budget until after the Transition
                  Period and Required Improvements are completed. If during any
                  three calendar month period commencing after the Transition
                  Period and the Required Improvements are completed the average
                  number of transactions settled through CalPX's settlement
                  system during such three-month period is less than 50% of the
                  average number of transactions settled through CalPX's
                  settlement system during the Transition Period, CalPX and
                  Perot Systems shall negotiate appropriate adjustments to the
                  Baseline Budget, the number of Full-Time Equivalent PSC
                  Personnel providing Core Services, the Service Levels, and
                  Schedule 7.8 provided that the reduction in the number of
                  transactions settled is the result of circumstances outside
                  CalPX's reasonable control.

         (b)      If CalPX elects to reduce the Baseline Budget as provided in
                  Section 5.10(a), CalPX shall give Perot Systems at least (i)
                  90 days prior written notice of any budget reduction of 5% or
                  less of the applicable Baseline Budget, (ii) 135 days prior
                  written notice of any budget reduction of 5% to 10% of the
                  applicable Baseline Budget, and (iii) 180 days prior written
                  notice of any budget reduction of more than 10% of the
                  applicable Baseline Budget. On the effective date of any



                                       17


                  reduction in the Baseline Budget, Perot Systems shall have the
                  right to reduce the number of Full-Time Equivalent PSC
                  Personnel performing Core Services under this Agreement, and
                  Perot Systems and CalPX shall adjust the Service Levels and
                  Schedule 7.8 as appropriate to reflect the staffing
                  adjustments.

5.11     No Other Charges. There shall be no other charges payable by CalPX
         other than those stated in this Article 5, Schedule 5.1 and Schedule
         5.2.

5.12     Fee Disputes.

         (a)      Within 30 days after receiving each invoice, CalPX shall give
                  notice to Perot Systems of any amount shown in such invoice
                  that is reasonably disputed in good faith by CalPX, which
                  notice shall include a reasonably detailed explanation of the
                  disputed amount and the grounds for the dispute. CalPX's
                  failure to pay amounts disputed in accordance with this
                  Section 5.12 shall not be grounds for a claim of breach or
                  suspension of work by Perot Systems so long as CalPX complies
                  with the provisions of Section 5.12(b). Ca1PX shall pay any
                  amounts to Perot Systems within five business days after such
                  amounts are found to be payable to Perot Systems. If the
                  aggregate disputed invoiced amounts exceed $120,000, then
                  CalPX shall pay all such disputed amounts, on or before 30
                  days after giving notice of dispute, into escrow in a major
                  United States commercial bank with which neither party has
                  significant dealings, with interest to be allocated to the
                  party entitled to the principal upon resolution of the
                  dispute, which dispute shall be resolved through good faith
                  negotiation or otherwise in accordance with Article 7.

5.13     Proration. All periodic fees under this Agreement are to be computed on
         a calendar month basis and shall be prorated for any partial month.

5.14     Unused Credits. Any unused credits against future payments owed to
         either party by the other pursuant to this Agreement shall be paid to
         the applicable party within 30 days after the expiration or termination
         of this Agreement.

5.15     Retention of Records. Perot Systems shall retain records and supporting
         documentation sufficient to document the Services and the fees paid or
         payable by CalPX under this Agreement for a period of seven years after
         the expiration or termination of this Agreement.



                                       18


                                    ARTICLE 6
              CONFIDENTIALITY, PROPRIETARY RIGHTS AND AUDIT RIGHTS

6.1      CalPX Data.

         (a)      All data and information (i) provided by or on behalf of CalPX
                  to Perot Systems in connection with the Services, (ii)
                  obtained, developed or produced by Perot Systems as part of
                  the Services, or (iii) to which Perot Systems has access as a
                  result of providing the Services ("CALPX DATA") shall remain
                  the property of CalPX or the third party that owns such data
                  and information. Perot Systems shall use such CalPX Data
                  solely in connection with the activities contemplated by this
                  Agreement. The CalPX Data shall be treated as Confidential
                  Information of CalPX under the Agreement. Perot Systems hereby
                  irrevocably assigns, transfers and conveys, and shall cause
                  all PSC Personnel to assign, transfer and convey, to CalPX
                  without further consideration all of its and their right,
                  title and interest in and to the CalPX Data.

         (b)      At Perot Systems' expense, Perot Systems shall promptly
                  correct any errors or inaccuracies in the CalPX Data and the
                  reports delivered to CalPX under this Agreement, to the extent
                  caused by Perot Systems. At CalPX's request and expense, Perot
                  Systems shall promptly correct any other errors or
                  inaccuracies in the CalPX Data or such reports.

         (c)      Upon request by CalPX at any time during the Term and upon
                  expiration or termination of the Agreement, Perot Systems
                  shall (1) promptly return to CalPX, in the format and on the
                  media requested by CalPX, all or any part of the CalPX Data
                  and (2) erase or destroy all or any part of the CalPX Data in
                  Perot System's possession, in each case to the extent so
                  requested by CalPX, except for (i) archive and backup copies
                  that are not readily accessible for use, and (ii) business
                  records required by law to be retained by Perot Systems. Any
                  archival and backup tapes containing CalPX Data shall be
                  deemed Confidential Information of CalPX and subject to the
                  provisions of Article 6 and shall be used by Perot Systems
                  only for back-up and audit purposes.

6.2      Confidential Information.

         (a)      Confidential Information. Each receiving party shall use at
                  least the same degree of care, but no less than a reasonable
                  degree of care, to avoid unauthorized disclosure or use of
                  each disclosing party's Confidential Information, including
                  any third party Confidential Information disclosed by the
                  disclosing party, as it employs with respect to its own
                  Confidential Information of similar importance. Each receiving
                  party may disclose Confidential Information only to the other
                  party to this Agreement and its own officers, directors, and
                  employees and to its consultants, subcontractors and advisors
                  who reasonably need to know it. Each receiving party shall be
                  responsible to the disclosing party for any violation of this
                  Agreement by its officers, directors, employees, consultants,
                  subcontractors or advisors. No



                                       19


                  receiving party may print or copy, in whole or in part, any
                  documents or other media containing a disclosing party's
                  Confidential Information, other than copies for its officers,
                  directors, employees, consultants or advisors who are working
                  on the matter, without the prior consent of the disclosing
                  party. No receiving party may use a disclosing party's
                  Confidential Information for competing with the disclosing
                  party or for any purpose not in furtherance of this Agreement.
                  The term "CONFIDENTIAL INFORMATION" is defined to mean, with
                  respect to CalPX and Perot Systems, all information,
                  documents, records and data, in whatever form or medium
                  (including, without limitation, (i) verbal statements
                  summarized in writing within 10 business days, (ii) printed
                  and electronic forms, (iii) handwritten notes or summaries,
                  (iv) portions of any such items) regarding each other party's
                  (a "DISCLOSING PARTY") methodologies, financial affairs,
                  business activities and plans and records identified as
                  confidential in CalPX's tariff, operating manual and Records
                  Availability Policy communicated by a disclosing party to a
                  receiving party.

         (b)      Certain Permitted Disclosures. Each of Perot Systems and CalPX
                  shall, however, be permitted to disclose relevant aspects of
                  the other party's Confidential Information to its respective
                  officers, agents, subcontractors and employees to the extent
                  that such disclosure is reasonably necessary for the
                  performance of its duties and obligations under this
                  Agreement; provided, however, that such party shall take
                  reasonable measures to prevent, and shall remain responsible
                  for, the disclosure of Confidential Information of the other
                  party in contravention of the provisions of this Agreement by
                  such officers, agents, subcontractors (except as otherwise
                  specifically provided in this Agreement) and employees.

         (c)      Disclosures Required by Law. If a receiving party is
                  requested, as part of an administrative or judicial
                  proceeding, to disclose any of a disclosing party's
                  Confidential Information, the receiving party shall, to the
                  extent permitted by applicable law, promptly notify the
                  disclosing party of such request and cooperate with the
                  disclosing party in seeking a protective order or similar
                  confidential treatment for such Confidential Information. The
                  seeking of protective orders shall be at the expense of the
                  party whose Confidential Information is at issue.

         (d)      Exclusions. Confidential Information shall not include
                  information that (1) was known by the receiving party without
                  an obligation of confidentiality prior to its receipt from the
                  disclosing party, (2) is independently developed by the
                  receiving party without reliance on Confidential Information,
                  (3) is or becomes publicly available without a breach of this
                  Agreement by the receiving party, (4) is disclosed to the
                  receiving party by a third person who is not required to
                  maintain its confidentiality, or (5) is required to be
                  disclosed by reason of legal, accounting or regulatory
                  requirements beyond the reasonable control of the receiving
                  party.



                                       20


         (e)      Obligations upon Termination or Expiration. Promptly after the
                  expiration or termination of this Agreement, except as
                  provided in Section 6.5 with respect to the Developed
                  Software, each receiving party shall return or, with the
                  consent of the disclosing party, destroy all of the disclosing
                  party's Confidential Information, including any third party
                  Confidential Information in the hands of either party, except
                  for (i) archive and backup copies that are not readily
                  accessible for use, and (ii) business records required by law
                  to be retained by the receiving party.

         (f)      Certain Privileged Information. Perot Systems acknowledges
                  that CalPX may assert that certain documents, data and
                  databases created by Perot Systems as part of the Operations
                  Services provided under this Agreement and all communications
                  related thereto (collectively, "PRIVILEGED WORK PRODUCT") are
                  subject to certain privileges under applicable law, including
                  the attorney-client privilege, and may seek to protect such
                  Privileged Work Product from disclosure by Rule 26 of the
                  Federal Rules of Civil Procedure or other applicable rules or
                  laws. CalPX shall notify Perot Systems of any Privileged Work
                  Product to which Perot Systems has or may have access. After
                  Perot Systems receives such notice, Perot Systems shall use
                  reasonable commercial efforts to limit access to such
                  Privileged Work Product solely to those PSC Personnel for whom
                  such access is required to fulfill Perot Systems' obligations
                  under this Agreement. If Perot Systems is requested to provide
                  any third party with access to Privileged Work Product, Perot
                  Systems shall, to the extent permitted by applicable law,
                  promptly notify CalPX and take, at CalPX's expense, such
                  reasonable actions as may be requested by CalPX to resist
                  providing such access. Perot Systems shall have the right, at
                  CalPX's expense, to retain independent legal counsel in
                  connection with any such request. If Perot Systems is
                  ultimately required, pursuant to an order of a court or other
                  authority reasonably believed by Perot Systems to be of
                  competent jurisdiction, to disclose Privileged Work Product,
                  Perot Systems shall have no liability under this Agreement in
                  connection with such disclosure.

         (g)      Internal Audits. Perot Systems may periodically perform, or
                  cause to be performed, internal compliance reviews of its
                  activities under this Agreement. The specific findings of
                  these reviews other than those performed under this Agreement,
                  whether performed by Perot Systems or a third person, shall be
                  deemed Privileged Work Product and Perot Systems shall not be
                  required to disclose such findings to CalPX under any
                  circumstances.

6.3      CalPX Proprietary Software. CalPX Proprietary Software shall be and
         remain the property of CalPX, and Perot Systems shall have no rights or
         interests therein except as required to perform the Services or as
         otherwise provided in this Agreement.

6.4      Perot Systems Software and Perot Systems Tools.



                                       21


         (a)      Any software that is proprietary to Perot Systems that Perot
                  Systems uses or to which Perot Systems provides CalPX access
                  ("PEROT SYSTEMS SOFTWARE") and any tools or methodologies
                  which are proprietary to Perot Systems and used in connection
                  with the activities contemplated by this Agreement ("PEROT
                  SYSTEMS TOOLS"), including any modifications to any Perot
                  Systems Software or Perot Systems Tools, shall be and remain
                  the property of Perot Systems, and CalPX shall have no rights
                  or interests therein, except as otherwise provided in this
                  Agreement.

         (b)      Perot Systems shall provide CalPX, Affiliates of CalPX and
                  CalPX Partners with access to the Perot Systems Software,
                  Perot Systems Tools and Perot Systems' Third Party Software
                  and Third Party Tools used in connection with the Services
                  during the Term to the extent such access is necessary for
                  CalPX or its Affiliates to receive the Services. Upon request,
                  CalPX shall have the right to approve the Perot Systems
                  Software, Perot Systems Tools and Third Party Software and
                  Third Party Tools prior to their use by Perot Systems in
                  connection with the Services.

         (c)      Upon termination or expiration of this Agreement, at the
                  request of CaIPX, Perot Systems shall grant to CalPX,
                  Affiliates of CalPX and CalPX Partners, and the first
                  successor provider of the Services, a license to access, use,
                  operate, modify and enhance for CalPX or its Affiliate's
                  business operations any Perot Systems Software or Perot
                  Systems Tools then being used to provide the Services at Perot
                  Systems' then prevailing commercial rates and terms, provided
                  that Perot Systems shall not be obligated to grant any license
                  rights with respect to any such software and tools to
                  Electronic Data Systems Corporation, Computer Sciences
                  Corporation, Andersen Consulting LLP or any of their
                  Affiliates for any period in excess of 180 days.

         (d)      At the request of CalPX, Perot Systems will use commercially
                  reasonable efforts to obtain for CalPX, Affiliates of CalPX
                  and CalPX Partners, and the first successor provider of the
                  Services, after the expiration or termination of the Agreement
                  license rights from the applicable third parties to access,
                  use, operate, modify and enhance any Third Party Software and
                  Third Party Tools being used by Perot Systems to provide the
                  Services as of expiration or termination of this Agreement.

6.5      Rights in Developed Software.

         (a)      Except as otherwise agreed in this Article 6, CalPX shall
                  acquire all right, title and interest in and to all Work
                  Product produced under this Agreement, including but not
                  limited to all trade secrets, copyrights, patents and other
                  intellectual property rights in and to such Work Product.
                  Except as otherwise agreed in this Article 6, Perot Systems
                  hereby irrevocably assigns, transfers and conveys, and shall
                  cause all PSC Personnel to assign, transfer and convey, to
                  CalPX without further consideration all of its and their
                  right, title and interest in and to such Work Product. Perot
                  Systems acknowledges, and shall cause all PSC Personnel to
                  acknowledge, that CalPX and the successors and permitted
                  assigns of CalPX shall



                                       22


                  have the right to obtain and hold in their own name the
                  intellectual property rights referred to above in and to such
                  Work Product including all rights of patent, copyright, trade
                  secret or other proprietary rights. Perot Systems agrees to
                  execute, and shall cause all PSC Personnel to execute, any
                  documents or take any other actions as may reasonably be
                  necessary, or as CalPX may reasonably request, to perfect or
                  register CalPX's ownership of any such Work Product.

         (b)      All Perot Developed Software and related Documentation shall
                  be owned by Perot Systems. To the extent that any of the Perot
                  Developed Software and related Documentation is deemed a "work
                  for hire" by operation of law, except as otherwise provided in
                  this Article 6, CalPX hereby assigns, transfers and conveys,
                  and shall cause CalPX Affiliates and agents to assign,
                  transfer and convey, to Perot Systems without further
                  consideration all of its and their right, title and interest
                  in and to such Perot Developed Software and related
                  Documentation including all rights of patent, copyright, trade
                  secret or other proprietary rights. CalPX acknowledges that
                  Perot Systems and the successors and permitted assigns of
                  Perot Systems shall have the right to obtain and hold in their
                  own names such intellectual property rights in and to the
                  Perot Developed Software and related Documentation. CalPX
                  agrees to execute any documents or take any other actions as
                  may be necessary, or as Perot Systems may reasonably request,
                  to perfect Perot Systems' ownership of or register such
                  intellectual property rights in any Perot Developed Software
                  and related Documentation.

                  (i)      Unless otherwise agreed in this Article 6, Perot
                           Systems shall grant and hereby does grant to CalPX,
                           subject to the terms of this Article 6 and the terms
                           and conditions of any license or similar agreement
                           relating to third party Embedded Software, a fully
                           paid-up, worldwide, non-exclusive, non-transferable
                           (except as provided in this Agreement) and perpetual
                           license to use, copy, maintain, and modify the Perot
                           Developed Software, Embedded Software and related
                           Documentation for CalPX's use in connection with its
                           own operations. For purposes of this Section 6.5,
                           CalPX's operations shall include the operations of
                           any Affiliate of CalPX and other third parties (i) to
                           whom CalPX provides services in addition to any
                           sublicense of software; or (ii) in whom CalPX has an
                           ongoing equity interest ("CALPX PARTNERS"). CalPX
                           shall be permitted to sublicense such rights to its
                           Affiliates and CalPX Partners. The license granted in
                           this paragraph shall include a non-transferable
                           (except as provided in the Agreement) and perpetual
                           license to use and practice any and all inventions of
                           Perot Systems embedded in any Perot Developed
                           Software, Embedded Software or related Documentation
                           (including those covered by patents and patent
                           applications at any time).

                  (ii)     Perot Systems shall provide CalPX with one or more
                           copies of the source code, source code documentation,
                           and other documentation that is



                                       23


                           reasonably necessary to enable CalPX to enjoy the
                           benefits of the license granted in this Article 6.

                  (iii)    Unless otherwise specifically agreed in writing by
                           CalPX, Perot Systems shall not license or otherwise
                           use, copy, maintain or modify, or authorize any third
                           party to use, copy, maintain or modify Work Product
                           that is prepared under this Agreement to provide or
                           market electricity services in any Restricted
                           Territory (defined below), during the period while
                           the Work Product is being developed and for a period
                           of one (1) year following the expiration or
                           termination of this Agreement. For purposes of this
                           paragraph, the term "RESTRICTED TERRITORY" means the
                           geographic region covered on the Effective Date by
                           the Western Systems Coordinating Council (WSCC), the
                           Electric Reliability Council of Texas (ERCOT), or the
                           Southwest Power Pool (SPP).

         (c)      The term "EMBEDDED SOFTWARE" is defined to mean pre-existing
                  software that is licensed by CalPX or Perot Systems from a
                  third party or owned by Perot Systems that is embedded in or
                  is necessary to operate the Developed Software. Perot Systems
                  shall retain its rights to any Embedded Software that is owned
                  by Perot Systems, but grants to CalPX the license rights
                  referred to in paragraph (b) above, provided that if any
                  Embedded Software is owned by a third party, then the tenns of
                  the applicable license shall define each party's rights to
                  such Embedded Software.

6.6      Know-How.

         (a)      CalPX acknowledges that, prior to the Effective Date, Perot
                  Systems has acquired, conceived, developed or licensed, and
                  after the Effective Date shall continue (both independently
                  and as a result of performing services under this Agreement)
                  to acquire, conceive, develop or license, certain
                  architectures, concepts, industry knowledge, techniques and
                  template works of authorship which embody copyrights,
                  inventions, trade secrets and other intellectual property
                  (collectively, "KNOW-HOW") relating to the types of services
                  to be performed for CalPX under this Agreement. CalPX desires
                  Perot Systems to apply its Know-How in connection with the
                  Services, and acknowledges that performance of the Services
                  shall enhance and expand the Know- How. Accordingly, Perot
                  Systems may (1) develop or distribute products or perform
                  services similar to the Work Product (including the
                  Deliverables and the Documentation), and (2) use its Know-How
                  to develop or distribute products or to perform services for
                  any other person, provided that (i) no such activity violates
                  the other provisions of this Article 6, (ii) the Know-How does
                  not contain any Confidential Information of CalPX and (iii)
                  use of the Know-How does not misappropriate any trade secret
                  rights or infringe upon any other copyright, patent or other
                  proprietary rights of CalPX. To the extent necessary to enjoy
                  the rights described in this Section 6.6, Perot Systems shall
                  retain, whenever intellectual property rights are assigned to
                  CalPX under this Agreement, (i) a royalty-free,



                                       24


                  perpetual, worldwide license to use, modify and practice any
                  and all inventions of PSC Personnel embedded in any Work
                  Product, Perot Developed Software or related Documentation
                  (including those covered by patents and patent applications at
                  any time) and (ii) the copyright in any templates that form
                  the basis for the Work Product (but not the copyright in the
                  Work Product derived from the template).

         (b)      Perot Systems acknowledges that, prior to the Effective Date,
                  CalPX and its employees have acquired, conceived, developed or
                  licensed, and after the Effective Date shall continue to
                  acquire, conceive, develop or license, certain Know-How. Perot
                  Systems acknowledges and agrees that nothing in this Agreement
                  shall restrict in any manner the right of CalPX to use any
                  such Know-How in any manner.

6.7      Audit of CalPX's Business. Perot Systems shall provide reasonable
         support to CalPX in connection with an audit of CalPX's business as
         Additional Services. Perot Systems shall not be obligated by this
         Agreement to disclose to CalPX or any other person or entity any
         information which is not reasonably necessary to conduct an audit of
         CalPX's business, nor shall Perot Systems be obligated to divulge any
         Confidential Information of Perot Systems or any third party, except as
         may be required under applicable law. In no event shall Perot Systems
         be obligated to disclose any Confidential Information to any
         competitor, or Affiliate of a competitor, of Perot Systems. CalPX may
         utilize third parties to conduct such audit subject to such third party
         or parties entering into a confidentially agreement reasonably
         satisfactory to CalPX and Perot Systems.

6.8      Data Security. Perot Systems shall establish and maintain mutually
         agreed safeguards against the destruction, loss, or alteration of the
         CalPX Data in the possession of Perot Systems. Perot Systems shall only
         have access to the CalPX production data on an as-needed basis. In the
         event any PSC Personnel discover or are notified of a material breach
         or potential material breach of security of the CalPX Data, Perot
         Systems shall immediately (1) notify the CalPX Representative of the
         same and (2) if the CalPX Data was in the possession of Perot Systems
         or PSC Personnel, as part of the Services, Perot Systems shall
         investigate the breach or potential breach. In addition, at CalPX's
         request, Perot Systems shall promptly provide CalPX Data security
         reports to CalPX in a form to be agreed upon by CalPX and Perot
         Systems.

6.9      Safety and Security Procedures. Perot Systems shall maintain and
         enforce mutually agreed physical security standards and procedures at
         each of the service locations and comply with CalPX environmental and
         physical security procedures in effect at the CalPX service locations.

6.10     Security Relative To CalPX Competitors. If Perot Systems intends to
         provide the Services from a service location that is shared with (1) a
         third party or (2) any part of the business of Perot Systems that
         competes with the business of CalPX, then, prior to providing any of
         the Services from such service location, Perot Systems shall develop a
         process, subject to CalPX's prior approval, to restrict access to the
         systems in any shared environment in a



                                       25


         manner that prevents persons other than PSC Personnel from having
         access to CalPX's Confidential Information.

                                    ARTICLE 7
                       PERFORMANCE REVIEW AND TERMINATION

7.1      Performance Review. The Account Manager and CalPX Representative shall
         meet as often as reasonably requested by either party to review the
         performance of the parties under this Agreement. Each party shall bear
         its own costs and expenses incurred in connection with such renew.

7.2      Dispute Resolution. If any continuing dispute between the parties is
         not resolved after reasonable attempts to resolve such dispute are made
         by either party, then, upon the written request of either party, each
         party shall appoint an officer who does not spend most of his or her
         time on activities relating to this Agreement, to meet with the other
         party's officer for the purpose of resolving the dispute. The officers
         shall negotiate in good faith to resolve the dispute without the
         necessity of any formal proceeding. During the course of such
         negotiations, all reasonable requests made by one party to the other
         for information shall be honored.

7.3      Arbitration. Any dispute that is not resolved through negotiation
         pursuant to Section 7.2 shall be settled through mandatory binding
         arbitration in accordance with the dispute resolution procedures
         described in Schedule 9 of CalPX's Tariff and the CalPX's "Supplemental
         Procedures for California Power Exchange Disputes", as shown in
         Schedule 7.3 (the Supplemental Procedures for California Power Exchange
         Disputes) administered by the American Arbitration Association, as
         amended from time to time (which tariff provisions are incorporated
         into and made part of this Agreement as if set forth in full). Such
         arbitration shall be final and binding in accordance with the
         following:

         (a)      American Arbitration Association Rules. Except as specified
                  below or otherwise agreed in writing, the arbitration shall be
                  conducted in accordance with the then-current Commercial
                  Arbitration Rules of the American Arbitration Association.

         (b)      Demands and Counterclaims. Any demand for arbitration or any
                  counterclaim shall specify in reasonable detail the facts and
                  legal grounds forming the basis for the claimant's request for
                  relief, and shall include a statement of the total amount of
                  damages claimed, if any, and any other remedy sought by the
                  claimant.

         (c)      Panel and Location. The arbitration shall be conducted by an
                  arbitration panel consisting of a single neutral arbitrator
                  selected in accordance with those Commercial Arbitration
                  Rules. The arbitration proceedings shall take place in Los
                  Angeles, California.

         (d)      Panel Actions. The arbitration panel may render awards of
                  monetary damages, direction to take or refrain from taking
                  action, or both. However, the arbitration



                                       26


                  panel may not award monetary damages in excess of the damages
                  allowed pursuant to Article 8 or 9. The arbitration panel may,
                  at its discretion, require any party to the arbitration to
                  reimburse any other party to the arbitration for all or any
                  part of the expenses of the arbitration paid by the other
                  party and the attorneys' fees and other expenses reasonably
                  incurred by the other party in connection with the
                  arbitration. Judgement upon the award rendered in the
                  arbitration may be entered in any court of competent
                  jurisdiction.

7.4      Termination for Cause. If either party (i) breaches any of its material
         obligations under this Agreement (excluding CalPX's obligation to pay
         Perot Systems) or (ii) repeatedly breaches any of its other obligations
         and the effect of any such repeated breaches is material, and the
         breaching party fails to cure any such breach within 30 days (or such
         longer period, not to exceed 60 days, if such breach can not be
         reasonably cured within such 30 day period and the breaching party
         commences to cure such breach upon receipt of notice and - diligently
         pursues a cure for such breach) after receipt of written notice from
         the other party identifying such breach, then the nonbreaching party
         may terminate this Agreement by providing the breaching party with
         prior written notice of termination.

7.5      Termination for Non-Payment. If CalPX fails to pay Perot Systems any
         undisputed amounts due hereunder and fails to cure such nonpayment
         within 10 days after receipt of written notice from Perot Systems
         identifying such nonpayment, then Perot Systems may terminate this
         Agreement by providing CalPX with prior written notice of termination.

7.6      Termination for Insolvency. ANY LICENSE CONTEMPLATED BY THIS AGREEMENT
         SHALL BE DEEMED AN EXECUTORY CONTRACT UNDER SECTION 3 65(n) OF TITLE 11
         TO THE U.S. BANKRUPTCY CODE AND SHALL REMAIN IN FULL FORCE AND EFFECT
         UPON THE LICENSEE'S ELECTION AND THE LICENSEE'S SUBSTANTIAL PERFORMANCE
         HEREUNDER, NOTWITHSTANDING ANY BANKRUPTCY OR INSOLVENCY OF THE
         LICENSOR. If either party is unable to pay its debts generally as they
         come due or is declared insolvent or bankrupt, is the subject of any
         proceedings relating to its liquidation, insolvency or for the
         appointment of a receiver or similar officer for it, makes an
         assignment for the benefit of all or substantially all of its
         creditors, or enters into an agreement for the composition, extension
         or readjustment of all or substantially all of its obligations, then
         the other party may, by giving prior written notice thereof to such
         party, terminate this Agreement as of a date specified in such notice
         of termination.

7.7      Termination for Convenience.

         (a)      CalPX may terminate this Agreement for convenience effective
                  as of any time after the second anniversary of the Effective
                  Date by (i) giving Perot Systems notice of it the termination
                  at least 180 days prior to the termination date specified in
                  the notice, and (ii) paying a termination fee in accordance
                  with this Section 7.7 in the event the date of termination is
                  a date prior to the end of the Initial Term.



                                       27



         (b)      The aggregate termination fee payable by CalPX in the event of
                  a termination for convenience pursuant to this Section 7.7
                  prior to the end of the Initial Term shall equal an amount
                  equal to $6,575.34 times the number of calendar days remaining
                  between the termination date and the end of the Initial Term.
                  Fifty percent of such termination fee shall be payable 90 days
                  following delivery of such termination notice, and shall be
                  paid in accordance with Section 5.7. The remaining 50% shall
                  be due on the termination date and shall be paid in accordance
                  with Section 5.7. In the event of an extension of this
                  Agreement beyond the Initial Term, the parties shall negotiate
                  the availability of a termination for convenience right and
                  any related fee, if any.

         (c)      If CalPX exercises its right under this Section 7.7, Perot
                  Systems shall, not later than 60 days after the termination
                  date, invoice CaIPX for the Make-Whole Costs and CalPX shall
                  pay the Make-Whole Costs within 30 days after receiving the
                  invoice. For purposes of this Section 7.7, "Make-Whole Costs"
                  means all reasonable out-of pocket direct costs and expenses
                  resulting from the early termination of this Agreement, such
                  as and by way of example only: (i) equipment lease termination
                  penalties, prorated over a period of the lesser of the Term or
                  the entire lease term during the Term, and (ii) unamortized
                  equipment and software costs (subject to CaIPX's right to
                  elect to take delivery or transfer of such equipment or
                  software at Perot Systems' then book value), less (iii) any
                  savings realized by Perot Systems in connection with CalPX's
                  exercise of its rights under this Section 7.7. Each party will
                  use reasonable commercial efforts, and will cooperate with the
                  other party or its designee, to minimize the Make-Whole Costs.

7.8      Termination for Causing Failure of Critical Services. If Perot Systems
         (1) as a result of a breach of its obligations under this Agreement
         causes the failure of any specific Critical Service described in
         Schedule 7.8 and (2) does not cure such failure with a permanent
         solution within the number of hours identified in Schedule 7.8 as the
         applicable cure period, after receipt of a notice from Ca1IPX with
         respect to such failure, more than the number of disruptions in a six
         month time period set forth in Schedule 7.8 for that Critical Service,
         then CalPX may, upon notice to Perot Systems, terminate this Agreement,
         in whole or in part, as of the termination date specified in the
         notice. For the purposes of this Section 7.8, such failures caused by
         Perot Systems shall not be counted as a disruption (i) during the
         Transition Period, (ii) prior to the date a disaster recovery solution
         is completed, (iii) to the extent the failure of a Critical Service is
         caused by the failure to complete all Required Improvements, (iv) in
         connection with any failure caused by a server that has not had its
         scheduled maintenance window made available by CalPX during the 30 day
         period prior to the disruption, (v) if Perot Systems' inability to cure
         the failure is caused by any third party's failure or inability to
         provide software, hardware or services necessary for Perot Systems to
         cure the failure, (vi) in connection with any failure of a Critical
         Service caused by the installation of new hardware or software that
         occurs within 30 days after such installation, or (vii) in connection
         with any failure to provide a Critical Service caused by a Force
         Majeure Event.

                                       28













7.9      Force Majeure Termination Provision. If any Force Majeure Event
         prevents, hinders or delays performance of the Services for seven days,
         in the case of Critical Services, or more than 30 days, in the case of
         all other Services, CalPX may procure such Services from an alternate
         source. If the Force Majeure Event continues to prevent, hinder or
         delay performance of the Services for more than 30 days, in the case of
         Critical Services, or more than 45 days, in the case of all other
         Services, and CalPX can obtain such Services from a third party, then
         CalPX may terminate this Agreement, in whole or in part, as of a date
         specified by CalPX in a termination notice to Perot Systems. If CalPX
         terminates this Agreement pursuant to this Section 7.9, such
         termination will be CalPX's sole remedy, and Perot Systems shall have
         no liability for damages or otherwise to CalPX, in connection with the
         unavailability of any Services as a result of any of the designated
         Force Majeure Events.

7.10     Continuity of Services. Perot Systems acknowledges that the timely and
         complete performance of its obligations pursuant to this Agreement is
         critical to the business and operations of CalPX. Accordingly, in the
         event of a dispute between CalPX and Perot Systems, Perot Systems shall
         continue to so perform its obligations under this Agreement in good
         faith during the resolution of such dispute unless and until this
         Agreement is terminated in accordance with the provisions hereof so
         long as CalPX continues to comply with the terms of Article 5.

7.11     Transition Obligations.

         (a)      Transition Assistance. During the Transition Assistance Period
                  (hereinafter defined), Perot Systems shall provide to CalPX
                  the Transition Assistance described below as reasonably
                  requested by CalPX ("TRANSITION ASSISTANCE"). The term
                  "TRANSITION ASSISTANCE PERIOD" is defined as (i) if this
                  Agreement expires under Section 1.3, the six month period
                  after the expiration date or termination date, as the case may
                  be, or (ii) if this Agreement is terminated under Sections
                  7.4, 7.5,7.6, 7.7, 7.8 or 7.9 the period beginning on the date
                  on which a notice of termination is delivered by either party
                  through the termination date or, upon CalPX's written request
                  prior to the termination date, through the date six months
                  after the termination date. The Transition Assistance to be
                  provided to CalPX by Perot Systems shall consist of the
                  following:

                  (i)      Continuing to perform any or all of the Services then
                           being performed by Perot Systems.

                  (ii)     Working with CalPX to develop a plan for the
                           transition of services from Perot Systems to CalPX or
                           another third party provider.

                  (iii)    Providing training for personnel of CalPX in the
                           performance of the Services then being transitioned
                           to CalPX.


                                       29













                  (iv)     With respect to any equipment owned by Perot Systems
                           and used solely to perform the Services, CalPX may
                           purchase any such equipment at Perot Systems'
                           then-current book value on an "as is -- where is"
                           basis. With respect to any equipment leased by Perot
                           Systems and used solely to perform the Services,
                           subject to the terms of any applicable lease, Perot
                           Systems shall assign to CalPX Perot Systems' rights
                           and obligations with respect to any such equipment
                           leased by Perot Systems; provided, however, that the
                           lessor under the lease agrees to release Perot
                           Systems from all liability under the lease as of the
                           date of assignment.

                  (v)      With respect to any third party services acquired by
                           Perot Systems and used solely to perform the
                           Services, subject to the terms of any applicable
                           third party services agreement, Perot Systems shall
                           assign to CalPX Perot Systems' rights and obligations
                           with respect to any such third party services used by
                           Perot Systems; provided, however, that such third
                           party service provider under the third party service
                           agreement agrees to release Perot Systems from all
                           liability arising under the third party service
                           agreement after the date of assignment.

                  (vi)     Returning CalPX Proprietary Software, delivering and
                           installing software and tools licensed to CalPX by
                           Perot Systems, delivering and installing Developed
                           Software and Work Product, delivering CalPX Data in a
                           format specified by CalPX and cooperating with CalPX
                           and a successor third party service provider.

                  (vii)    CalPX shall have the opportunity to offer employment
                           to Transitioned Employees and any replacements for
                           the Transitioned Employees and any other PSC
                           Personnel who are providing Services to CalPX upon
                           expiration or termination of this Agreement Perot
                           Systems shall provide CalPX with reasonable access to
                           such PSC Personnel to enable CalPX to meet with,
                           solicit and hire such PSC Personnel. Perot Systems
                           shall waive any non-competition or similar provisions
                           of any agreements or benefit plans that may prevent
                           or inhibit the PSC Personnel from being hired by
                           CalPX, except that Perot Systems shall have no
                           obligation to modify vesting, participation or
                           similar terms in any stock option agreements or stock
                           purchase program agreements.

         (b)      Payment for Transition Assistance. CalPX shall pay Perot
                  Systems for such Transition Assistance on a time and materials
                  basis at Perot Systems' then-standard commercial billing rates
                  (less a discount of 25% in the case of a termination under
                  Sections 7.4, 7.6, 7.8 or 7.9) or on any other mutually
                  acceptable basis Notwithstanding Section 5.8, CalPX shall pay
                  Perot Systems for any Transition Assistance in advance on the
                  first day of each month of the Transition Assistance - Period
                  an amount equal to Perot Systems' reasonable estimate of the
                  total amount payable to Perot Systems for such Transition
                  Assistance for that month adjusted, as


                                       30






                  necessary, to reflect the reconciliation based on the actual
                  charges for Transition Assistance provided during the prior
                  month. Perot Systems shall provide CalPX with an invoice each
                  month evidencing the estimate of the total amount payable to
                  Perot Systems for Transition Assistance for the next month and
                  a reconciliation with the actual charges for the Transition
                  Assistance provided to CalPX during the prior month.

7.12     Force Majeure. If and to the extent that a party's performance of any
         of its obligations pursuant to this Agreement is prevented, hindered or
         delayed by fire, flood, earthquake, elements of nature or acts of God,
         acts of war, terrorism, riots, civil disorders, rebellions or
         revolutions, or any other similar cause beyond the reasonable control
         of such party (each, a "Force Majeure Event"), and such
         non-performance, hindrance or delay could not have been prevented by
         reasonable precautions, then the non-performing, hindered or delayed
         party shall be excused for such non-performance, hindrance or delay, as
         applicable, of those obligations affected by the Force Majeure Event
         for as long as such Force Majeure Event continues and such party
         continues to use all commercially reasonable efforts to recommence
         performance whenever and to whatever extent possible without delay,
         including through the use of alternate sources, workaround plans or
         other means. The party whose performance is prevented, hindered or
         delayed by a Force Majeure Event shall immediately notify the other
         party of the occurrence of the Force Majeure Event and describe in
         reasonable detail the nature of the Force Majeure Event.


                                    ARTICLE 8
                                   INDEMNITIES

8.1      Bodily Injury and Property Damage Indemnity.

         (a)      By Perot Systems. Perot Systems agrees to indemnify, defend
                  and hold harmless CalPX and its Affiliates from and against
                  all Losses arising out of or relating to the death or bodily
                  injury of any agent, employee, consultants, subcontractors,
                  contractors, customer or visitor or damage to property caused
                  by the acts or omission of Perot Systems.

         (b)      By CalPX. CalPX agrees to indemnify, defend and hold harmless
                  Perot Systems from and against all Losses arising out of or
                  relating to the death or bodily injury of any agent, employee,
                  consultants, subcontractors, contractors, customer or visitor
                  or damage to property caused by the acts or omission of CalPX.



                                       31


8.2      Intellectual Property Indemnity.

         (a)      By Perot Systems. Perot Systems agrees, at its expense, to
                  indemnify, defend and hold harmless CalPX and its Affiliates
                  from and against any and all claims, damages, demands,
                  liabilities, costs and expenses, including reasonable
                  attorneys' fees and expenses ("Losses") resulting from,
                  arising out of or relating to any third party claims brought
                  against CalPX or its Affiliates alleging that any Work
                  Product, Developed Software, Perot Systems Software, Perot
                  Systems Tools or the Services infringe a third person's
                  copyright, patent, trade secret or other intellectual
                  property right (except as may have been caused by CalPX,
                  including any infringement caused by any method or process
                  required to meet the specifications as requested by CalPX.)

         (b)      By CalPX. CalPX agrees, at its expense, to indemnify, defend
                  and hold harmless Perot Systems from and against any Losses
                  resulting from, arising out of or relating to any third-party
                  claims brought against Perot Systems alleging that Perot
                  Systems' use, in accordance with the terms of this Agreement,
                  of CalPX Proprietary Software infringes a third person's
                  copyright, trade secret, patent or other intellectual property
                  right (except as may have been caused by Perot Systems).

         (c)      Mitigation. Upon receiving notice of an infringement claim,
                  the indemnitor may, in its sole discretion, (i) modify the
                  allegedly infringing item to be non-infringing without
                  materially impairing its functionality, (ii) replace the
                  allegedly infringing item with a noninfringing item of
                  substantially equivalent functionality, or (iii) obtain for
                  the indemnitee the right to continue to use the item in
                  accordance with the terms of this Agreement.

8.3      Employment Indemnity.

         (a)      Indemnification by Perot Systems. Perot Systems agrees to
                  indemnify, defend and hold harmless CalPX against any and all
                  Losses arising out of or relating to any Transitioned
                  Employee, attributable to any period commencing on or after
                  the date on which such Transitioned Employee accepts
                  employment with Perot Systems and arising out of Perot
                  Systems' employment of that Transitioned Employee, including
                  without limitation claims relating to salary, employee
                  benefits, employment taxes and other payments in connection
                  therewith, but excluding claims relating to agreements,
                  arrangements or commitments made by CalPX with or to that
                  Transitioned Employee.

         (b)      Indemnification by CalPX. CalPX agrees to indemnify, defend
                  and hold harmless Perot Systems from any and all Losses
                  arising out of or relating to any Transitioned Employee or
                  Non-Transitioned Employee, attributable to any period during
                  which such Transitioned Employee or Non-Transitioned
                  Employee was employed by



                                       32





                  CalPX and arising out of CalPX's employment of that
                  Transitioned Employee or Non-Transitioned Employee, including
                  without limitation claims relating to salary, employee
                  benefits, and other payments in connection therewith, but
                  excluding any claims relating to agreements, arrangements, or
                  commitments made by Perot Systems with or to that Transitioned
                  Employee or Non-Transitioned Employee.

8.4      CalPX's Business Risk Indemnity. To the extent, and only to the extent,
         CalPX's insurance carriers cover CalPX's obligations under this Section
         8.4, CalPX shall indemnify, defend and hold Perot Systems harmless from
         any and all Losses resulting from, arising out of or relating to any
         third party claims by CalPX's participants and vendors relating to any
         duties or obligations of CalPX to such third parties.

8.5      Other Perot Systems Indemnities. Perot Systems agrees, at its expense,
         to indemnify, defend and hold harmless CalPX from and against all
         Losses resulting from, arising out or relating to any claims:

         (a)      relating to any duties or obligations of Perot Systems or its
                  agents in respect of a third party or any subcontractor of
                  Perot Systems;

         (b)      relating to Perot System's breach of Section 6.2; or

         (c)      relating to Perot System's breach of Section 6.1.

8.6      Indemnification Procedures. With respect to third-party claims subject
         to the indemnities set forth in this Article, the indemnitee shall
         notify the indemnitor promptly of any matters respect of which the
         foregoing indemnity may apply and of which the indemnitee has knowledge
         and shall give the indemnitor full opportunity to control the response
         thereto and the defense thereof, including, without limitation, any
         agreement relating to the settlement thereof, provided that the
         indemnitee shall have the right to approve any settlement or any
         decision not to defend, which approval shall not be unreasonably
         withheld. The indemnitee's failure to promptly give notice shall affect
         the indemnitor's obligation to indemnify the indemnitee only to the
         extent that the indemnitor's rights are materially prejudiced thereby.
         The indemnitee may participate, at its own expense, in any defense and
         any settlement directly or through counsel of its choice. If the
         indemnitor elects not to defend, the indemnitee shall have the right to
         defend or settle the claim as it may deem appropriate, at the cost and
         expense of the indemnitor, which shall promptly reimburse the
         indemnitee for such costs, expenses and settlement amounts.



                                       33


                                    ARTICLE 9
                                    LIABILITY

9.1      Limitation of Liability. Each party's liability for damages under this
         Agreement shall not exceed, in the aggregate, an amount equal to the
         Service Fees actually paid by CalPX to Perot Systems during the first
         nine months after the Effective Date.

9.2      Limitation on Type of Damages. Each party shall only be liable for the
         direct damages of the other party. The measure of damages payable by a
         party shall not include, and a party shall not be liable for, any
         amounts for the indirect, incidental, reliance, special, consequential
         (including without limitation lost profits, income or revenue) or
         punitive damages of the other party or any third parties, whether in
         tort or contract, and whether or not such damages are foreseen or
         unforeseen.

9.3      Exclusions.

         (a)      The limitation or exculpation of liability set forth in
                  Section 9.1 shall not apply to (i) a party's obligations to
                  make payments to the other party under Section 5 of this
                  Agreement, or (ii) except for indemnification claims under
                  Section 8.1 relating to damage to data or information,
                  indemnification claims under Article 8.

         (b)      The limitation or exculpation of liability set forth in
                  Section 9.2 shall not apply to (i) a party's obligations to
                  make payments to the other party under Section 5 of this
                  Agreement, (ii) indemnification claims under Article 8 for
                  Losses that are (A) final judgments or awards obtained by a
                  third party against the indemnified party by a court or
                  arbitrator of competent jurisdiction and any settlements to
                  which the indemnifying party agrees in writing (which shall be
                  considered direct damages for purposes of this Agreement), or
                  (B) damages to tangible personal or real property (excluding
                  any data or information) or (iii) indemnification claims under
                  Section 8.5.

9.4      Year 2000 Problems. Except as set forth in this Section 9.4, Perot
         Systems shall have no obligation under this Agreement to (i) identify,
         correct or resolve or any problem caused by the failure of any CalPX
         Software, CalPX Vendor Software or CalPX Technology to record, store,
         process, or present calendar dates falling on or after January 1, 2000,
         in the same manner, and with the same functionality and accuracy, as
         performed on or before December 31, 1999; (ii) provide a century
         indicator on all dates produced therein as output or results from its
         operation; (iii) abnormally end or generate an incorrect result when
         performing date calculations involving either a single century or
         multiple centuries; (iv) sort all files in an accurate sequence when
         sorted by date and read and write in an accurate sequence when the date
         is used as the key for such reading or writing; and (v) be capable of
         determining leap years. In addition, Perot Systems shall have no
         liability to CalPX for Perot Systems' inability to perform its
         obligations under this Agreement as a result of any failure of the
         type or nature described above. Notwithstanding anything to the
         contrary in this Section 9.4, upon request by CalPX, Perot Systems
         shall assign PSC Personnel to



                                       34



         identify, correct or resolve Y2K problems provided that no such actions
         shall materially affect the ability of Perot Systems to provide the
         Services.

                                   ARTICLE 10
                                    WARRANTY

10.1     By Perot Systems. Perot Systems warrants and covenants to CalPX that:

         (i)      the Services shall be performed by qualified personnel in a
                  manner consistent with good practice in the information
                  technology services industry; and

         (ii)     in providing the Services, Perot Systems and the PSC Personnel
                  shall comply in all material respects with all federal, state,
                  and local laws and regulations that apply to, and obtain all
                  material permits and licenses that pertain to, the provisiOn
                  of the Services generally.

         If Perot Systems breaches this Section 10.1, it shall supply services
         to correct or replace the work at no charge. THE REMEDY SET FORTH IN
         THIS PARAGRAPH 10.1 IS CALPX'S EXCLUSIVE REMEDY FOR BREACH OF THE
         WARRANTY IN SECTION 10.1(i); PROVIDED THAT THE FORGOING SHALL NOT LIMIT
         ANY OTHER RIGHT OR REMEDY OF CALPX IN RESPECT OF ANY OTHER BREACH OF
         ANY PROVISION OF THIS AGREEMENT BY PEROT SYSTEMS.

10.2     By Each Party. Each party warrants that:

         (a)      it is a corporation duly incorporated, validly existing, and
                  in good standing under the laws of its state of incorporation,

         (b)      it has all requisite power and authority to execute, deliver,
                  and perform its obligations under this Agreement,

         (c)      the execution, delivery, and performance of this Agreement has
                  been duly authorized by such party and shall not conflict
                  with, result in a breach or constitute a default under any
                  other agreement to which it is a party,

         (d)      no approval, authorization, or consent of any governmental or
                  regulatory authority is required to be obtained or made by it
                  in order for it to enter into and perform its obligations
                  under this Agreement, and

         (e)      there is no outstanding litigation, arbitrated matter or other
                  dispute to which it is a party which, if decided unfavorably
                  to it, would reasonably be expected to have a material adverse
                  effect on its ability to fulfill its obligations under this
                  Agreement.




                                       35







10.3     Disclaimer of Warranty.


         (a)      IF PEROT SYSTEMS ACQUIRES ANY THIRD-PARTY SOFTWARE, HARDWARE
                  OR SERVICES FOR CALPX UNDER THIS AGREEMENT AT THE REQUEST OF
                  CALPX, PEROT SYSTEMS SHALL PROVIDE SUCH THIRD-PARTY SOFTWARE,
                  HARDWARE OR SERVICES ON AN "AS IS" BASIS, BUT PEROT SYSTEMS
                  SHALL USE REASONABLE COMMERCIAL EFFORTS TO ASSIST CALPX IN
                  ENFORCING ANY THIRD-PARTY WARRANTY AND SHALL PASS THROUGH TO
                  CALPX THE BENEFIT OF ANY SUCH WARRANTY.

         (b)      EXCEPT AS MAY BE SPECIFICALLY PROVIDED IN THIS AGREEMENT, EACH
                  PARTY DOES NOT MAKE, AND HEREBY DISCLAIMS, ANY REPRESENTATIONS
                  OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT
                  LIMITATION ANY WARRANTY OF THE MERCHANTABILITY, SUITABILITY,
                  FITNESS FOR A PARTICULAR PURPOSE, OR RESULTS TO BE DERIVED
                  FROM THE USE OF ANY RESOURCES, SERVICES OR MATERIALS PROVIDED
                  PURSUANT TO THIS AGREEMENT.

         (c)      PEROT SYSTEMS DISCLAIMS ALL REPRESENTATIONS OR WARRANTIES THAT
                  ANY SERVICES PROVIDED UNDER THIS AGREEMENT SHALL IDENTIFY OR
                  RESOLVE CALPX'S YEAR 2000 PROBLEM AREAS. PEROT SYSTEMS SHALL
                  NOT BE LIABLE FOR ANY FAILURE TO IDENTIFY OR CORRECT CALPX'S
                  YEAR 2000 PROBLEM AREAS REGARDLESS OF THE FORM OF THE CLAIM,
                  EXCEPT FOR PEROT SYSTEMS OBLIGATIONS TO PROVIDE SERVICES
                  DESCRIBED IN SECTION 9.4.

10.4     Certain Covenants.

         (a)      Viruses.

                  (i)      Each party shall use reasonable commercial efforts to
                           prevent any software viruses or other surreptitious
                           software codes (collectively, "VIRUS") from being
                           introduced into the Systems. Perot Systems shall
                           evaluate, recommend and maintain up-to-date, subject
                           to CalPX's approval, virus detection and removal
                           products to be used in connection with the Systems,
                           on a mutually satisfactory periodic basis.

                  (ii)     If a Virus is introduced into a System, each party
                           shall use reasonable commercial efforts to identify
                           and neutralize such Virus and to mitigate any adverse
                           effect of such Virus, and Perot Systems shall repair
                           or restore, as soon as, and to the extent, reasonably
                           practicable any data, information or Systems damaged
                           by such Virus. The priority and intensity of the
                           efforts


                                       36




                           undertaken by the parties to identify and neutralize
                           the Virus, and to repair or restore any affected
                           data, information or systems, shall be determined by
                           CalPX based on its evaluation of the situation, based
                           on such factors as it deems appropriate, including
                           but not limited to, the number of sites affected, the
                           severity of the damage being caused, and the relative
                           importance of the Systems affected.

         (b)      Perot Systems shall not, without the prior consent of CalPX,
                  intentionally introduce into any System or intentionally
                  invoke any code which is intended to disable or wrongfully
                  impair or shut down such System.


                                   ARTICLE 11
                                    INSURANCE

11.1     Insurance.

         (a)      Prior to the commencement of performance of Services under
                  this Agreement, Perot Systems shall procure and maintain in
                  full force and effect during the Term of this Agreement, and
                  any extension hereof, the following insurance policies:

                  (i)      Commercial general liability insurance with limits of
                           at least one million dollars ($1,000,000.00) combined
                           single limits per occurrence and general aggregate
                           for (a) bodily injury and property damage, (b)
                           completed operations, (c) blanket contractual, and
                           (d) contractor's protective liability on such terms
                           and in such amounts as are satisfactory to CalPX.

                  (ii)     Commercial automobile liability insurance policy with
                           combined single limits of $1,000,000 for bodily
                           injury and property damage for each occurrence, and
                           with coverage for non-owned vehicles.

                  (iii)    Workers' Compensation in statutory required amounts
                           under applicable state Workers Compensation laws, and
                           employers liability insurance with a policy limit of
                           at least $500,000; and

                  (iv)     Computer Services errors and omissions liability
                           insurance with limits of at least one million dollars
                           ($1,000,000.00) per claim and aggregate.

         (b)      The policies shall state that they afford primary coverage and
                  the commercial general liability and the commercial automobile
                  liability insurance shall name CalPX as an additional insured
                  for loss or liability pursuant to the above indemnity
                  occurring during activity or performance under this Agreement,
                  including costs of defending such claim.

         (c)      CalPX reserves the right to increase or decrease the coverage
                  upon giving thirty days written notice to Perot Systems.



                                       37









         (d)      Perot Systems shall, within 15 days of the signing of this
                  Agreement, furnish to CalPX certificates of insurance
                  certifying the above insurance coverage or renewals thereof
                  All insurance policies shall bear endorsement providing that
                  the policies cannot be cancelled or materially restricted
                  without 30 days prior written notice to CalPX.

         (e)      In the absence of the required certificates of insurance
                  evidencing at least the minimum types and amounts of
                  insurance, CalPX may, at its option: (i) procure insurance
                  with collection rights for premiums, attorney's fees and costs
                  against Perot Systems by way of set-off or recoupment from
                  sums due Perot Systems, at CalPX's option; or (ii) terminate
                  this Agreement under the terms of Section 7.4.

         (f)      The cost of all insurance shall be borne solely by Perot
                  Systems.

                                   ARTICLE 12
                                  MISCELLANEOUS

12.1     Relationship of Parties.

         (a)      Perot Systems is appointed by CalPX only for the purposes and
                  to the extent set forth in this Agreement, and Perot Systems'
                  relation to CalPX shall, during the period covered by this
                  Agreement, be that of an independent contractor, and Perot
                  Systems does not have and shall not have any power, and Perot
                  Systems shall not represent that Perot Systems has any power,
                  to bind CalPX, to assume or to create any obligation or
                  responsibility, express or implied, on behalf of CalPX or in
                  its name.

         (b)      Perot Systems shall not be considered, under the provisions of
                  this Agreement or otherwise, as having an employee status or
                  the status of an agent or partner of CalPX, and shall not be
                  entitled to participate in any plans, arrangements, or
                  distributions by CalPX pertaining to or in connection with any
                  pension, stock, bonus, profit sharing, health plans, or
                  similar benefits for CalPX employees. Perot Systems shall meet
                  all of its obligations and responsibilities as an employer to
                  its own employees under any federal, state or local laws,
                  regulations or order now or hereafter in force, including
                  those relating to taxes, unemployment compensation or
                  insurance, arising out of its engagement of persons for the
                  performance of or contribution to the Services performed
                  hereunder.

         (c)      No part of Perot Systems' compensation shall be subject to
                  withholding by CalPX for the payment of social security,
                  unemployment, or disability insurance or any other similar
                  state or federal tax obligation. In the event CalPX is found
                  to be so liable for social security, unemployment, disability
                  insurance or other tax or


                                       38




                  withholding, CalPX shall have the right to recover an
                  equivalent amount, including any interest or penalties paid in
                  connection therewith, from Perot Systems.

12.2     Notices. All consents, notices, requests, demands, waivers and other
         communications required or permitted to be given under this Agreement
         shall be in writing and may be given by any of the following methods:
         (a) personal delivery, (b) facsimile transmission, (c) registered or
         certified mail, postage prepaid, return receipt requested, or (d)
         overnight delivery service. All such communications shall be sent to
         the appropriate party at the following address or facsimile number (or
         to such other address or facsimile number as that party may have
         specified by notice given according to this Section).

<Table>
                                               
         If to Perot Systems:                     With a copy to:

         Perot Systems Corporation                Perot Systems Corporation
         Attn: President                          Attn: General Counsel
         12404 Park Central Drive                 12404 Park Central Drive
         Dallas, Texas 75251                      Dallas, TX 75251

         If to CalPX:

         California Power Exchange Corporation    California Power Exchange Corporation
         Attn: Chief Information Officer          Attn: General Counsel
         200 Los Robles Avenue, Suite 400         200 Los Robles Avenue, Suite 400
         Pasadena, California 91101-2482          Pasadena, California 91101-2482
</Table>

         All such consents, notices, requests, demands, waivers and other
         communications shall be deemed received upon (x) actual receipt by the
         addressee, (y) actual delivery to the appropriate address or (z) in the
         case of a facsimile transmission, upon transmission thereof by the
         sender and issuance by the transmitting machine of a confirmation slip
         that the number of pages constituting the notice has been transmitted
         without error. In the case of notices sent by facsimile transmission,
         the sender shall contemporaneously mail a copy of the notice to the
         addressee at the address provided for above. However, such mailing
         shall in no way alter the time at which the facsimile notice is deemed
         received.

12.3     Assignment. This Agreement may not be assigned by either party without
         the written consent of the other party, except that (i) either party
         may assign this Agreement to the surviving entity in connection with
         the merger, consolidation, or sale of all or substantially all of the
         assets of that party, (ii) CalPX may assign this Agreement in
         connection with a corporate 2 reorganization of CalPX or to any
         Affiliate of CalPX, so long as CalPX remains responsible for the
         actions of such Affiliate and (iii) Perot Systems may assign this
         Agreement to any Affiliate that is a subsidiary of Perot Systems
         organized within the United States or, with the consent of CalPX, any
         other subsidiary of Perot Systems, so long as Perot Systems, in each
         case, remains responsible for (a) the actions of such Affiliate and (b)
         any additional costs or expenses arising out of or relating to any such
         assignment by

                                       39





         Perot Systems. The consent of a party to any assignment of this
         Agreement shall not constitute that party's consent to any other
         assignment of this Agreement. This Agreement shall be binding on the
         parties and their respective successors and permitted assigns. Any
         assignment in contravention of this Section shall be void.

12.4     Severability. Whenever possible, each provision of this Agreement shall
         be interpreted in such a manner as to be effective and valid under
         applicable law, but if any provision of this Agreement is held to be
         prohibited by or invalid under applicable law, such provision shall be
         deemed restated to reflect the original intentions of the parties as
         nearly as possible in accordance with applicable law, and, if capable
         of substantial performance, the remaining provisions of this Agreement
         shall be enforced as if this Agreement was entered into without the
         invalid provision.

12.5     Captions. The captions used in this Agreement are for convenience of
         reference only and do not constitute a part of this Agreement and shall
         not be deemed to limit, characterize or in any way affect any provision
         of this Agreement, and all provisions of this Agreement shall be
         enforced and construed as if no caption had been used in this
         Agreement.

12.6     Modification: Waiver. This Agreement may be modified only by a written
         instrument duly executed by or on behalf of each party. No delay or
         omission by either party to exercise any right or power hereunder shall
         impair such right or power or be construed to be a waiver thereof A
         waiver by either party of any of the obligations to be performed by the
         other or any breach thereof shall not be construed to be a waiver of
         any succeeding breach thereof or of any other obligation herein
         contained.

12.7     No Third-Party Beneficiaries. The parties agree that this Agreement is
         for the benefit of the parties hereto and is not intended to confer any
         rights or benefits on any third-party, including any employee of either
         party, and that there are no third-party beneficiaries to this
         Agreement or any part or specific provision of this Agreement.

12.8     Governing Law. The laws of the state of California. other than its
         rules on conflicts of laws, shall govern the interpretation and
         construction of this Agreement. The Uniform Electronic Transactions Act
         shall not apply to this Agreement, and except as provided in Section
         3.4(a), communications sent by electronic means and electronic
         signatures shall not be effective under this Agreement.

12.9     Consents, Approvals, Requests and Opinions. Except as specifically set
         forth in this Agreement, all consents and approvals to be given or
         opinions to be adopted by either party under this Agreement shall not
         be unreasonably withheld or delayed and each party shall make only
         reasonable requests and opinions under this Agreement.

12.10    Survival. The terms of Section 2.8(b), Section 2.9, Article 5 (with
         respect to any amounts payable but not yet paid thereunder), Section
         5.8, Section 5.12, Section 5.15, Article 6,


                                       40








         Section 7.2, Section 7.3, Section 7.11, Article 8, Article 9, Section
         10.1, Section 10.2, Section 10.3, and Article 12 shall survive the
         expiration or termination of this Agreement.

12.11    Sole and Exclusive Venue. Each party irrevocably agrees that any legal
         action, suit or proceeding or alternate dispute resolution brought by
         it in any way arising out of this Agreement must be brought solely and
         exclusively in the United States District Court for the Central
         District of California. or in the state courts of the State of
         California for Los Angeles County and irrevocably accepts and submits
         to the sole and exclusive jurisdiction of each of the aforesaid courts
         in persona. generally and unconditionally with respect to any action,
         suit or proceeding brought by it or against it by the other party.

12.12    Covenant of Further Assurances. CalPX and Perot Systems covenant and
         agree that, subsequent to the execution and delivery of this Agreement
         and, without any additional consideration, each of CalPX and Perot
         Systems shall execute and deliver any further legal instruments and
         perform any acts that are or may become necessary to effectuate the
         purposes of this Agreement.

12.13    Negotiated Terms. The parties agree that the terms and conditions of
         this Agreement are the result of negotiations between the parties and
         that this Agreement shall not be construed in favor of or against any
         party by reason of the extent to which any party or its professional
         advisors participated in the preparation of this Agreement.

12.14    Remedies Cumulative. Except as otherwise specified under this
         Agreement, no specific remedy under this Agreement shall limit a
         party's right to exercise all other remedies available to such party
         under law, in equity or under this Agreement, and all such remedies
         shall be cumulative.

12.15    Conflict of Interest. Individual PSC Personnel who perform Services
         regularly on a full time basis shall be deemed to be a "substantially
         full time consultant" within the meaning of Section 1.1. of the Code
         of Conduct and shall accordingly comply with the Code of Conduct. Such
         individual's noncompliance with the Code of Conduct, whether with or
         without knowledge, intentional or otherwise, shall constitute grounds
         to have such individual removed from the CalPX account under Section
         2.5.

12.16    Export. CalPX and Perot Systems shall not knowingly export or re-export
         any personal computer system, part, technical data or sub-elements
         under this Agreement, directly or indirectly, to any destinations
         prohibited by the United States Government. The term "technical data"
         in this context means such data as is defined as technical data by
         applicable United States export regulations.

12.17    Entire Agreement. This Agreement, including any Schedules referred to
         herein and attached to hereto, each of which is incorporated herein for
         all purposes, constitutes the entire agreement between the parties
         hereto with respect to the subject matter hereof and there are no
         representations, understandings or agreements relative hereto which are
         not fully expressed

                                       41






         herein. No change, waiver, or discharge hereof shall be valid unless in
         writing and signed by an authorized representative of the party against
         which such change, waiver, or discharge is sought to be enforce&

12.18    Media Releases. All media releases, public announcements and public
         disclosures by CaIPX or Perot Systems relating to this Agreement,
         including without mutation, promotional or marketing material (but not
         including any announcement intended solely for internal distribution
         within CaIPX or Perot Systems, as the case may be, or any disclosure
         required by legal, accounting or regulatory requirements beyond the
         reasonable control of CalPX or Perot Systems, as the case may be) shall
         be coordinated with and approved by the other prior to the release
         thereof

12.19    Task Order No. 5. The parties acknowledge and agree that after the
         Effective Date, Perot Systems shall have no further obligations to
         provide any services under Task Order No. 5, Effective as of January
         16, 1999, between the parties.

IN WITNESS WHEREOF, the parties have caused this Agreement to be signed and
delivered by their duly authorized representative as of the date first set forth
above.



CALIFORNIA POWER EXCHANGE CORPORATION           PEROT SYSTEMS CORPORATION


By:                                             By:
   -------------------------                       ---------------------------

Name:                                        Name:
     -----------------------                      ----------------------------

Title:                                       Title:
      ----------------------                       ---------------------------

Date:                                        Date:
     -----------------------                      ----------------------------




                                       42


                                  SCHEDULE 1.1
                                  DEFINITIONS


"AAA" has the meaning given this term in paragraph 1(a) of Schedule 7.3.

"Acceptance" has the meaning given this term in Part D, paragraph (b)(i) of
Schedule 3.1.

"Acceptance Period" has the meaning given this term in Part D, paragraph (b)(i)
of Schedule 3.1.

"Acceptance Test Plan" has the meaning given this term in Part D, paragraph
(b)(ii) of Schedule 3.1.

"Account Manager" has the meaning given this term in Section 2.1.

"Additional Services" has the meaning given this term in Section 3.3.

"Affiliate" means, as to any entity, any other entity that, directly or
indirectly controls, is controlled by or is under common control with such
entity.

"Agreement" has the meaning given this term in the preamble to this Agreement.

"Agreement Date" has the meaning given this term in the preamble to this
Agreement.

"Applications" means the software programs that are operated by Perot Systems
under this Agreement.

"Applications Development Services" means the services described in Part D,
paragraph (a) of Schedule 3.1.

"Applications Maintenance Services" means the services described in Part C,
paragraph (a) of Schedule 3.1.

"Base Index" has the meaning given this term in Section 5.6.

"Baseline Budget" has the meaning given this term in Section 5.3(a).

"Base Services" has the meaning given this term in Section 3.1.

"Benchmark Information" has the meaning given this term in Section 3.12(c).

"Business Consulting" means the services described in Part E of Schedule 3.1.

"Calculated Services Fee" has the meaning given in Schedule 5.1.


                              Schedule 1.1 - Page 1







"CalPX" has the meaning given this term in the preamble to this Agreement.
Whenever any Affiliate of CalPX receives Services under this Agreement, the
definition of "CaLPX" shall be deemed to include such Affiliate.

"CalPX" Auditors" has the meaning given this term in Section 5.8.

"CalPX Data" has the meaning given this term in Section 6.1.

"CalPX Developed Software" means any Deliverable tat (i) contains a modification
to the source code of CaIPX Proprietary Software, or (ii) contains newly
developed source code the functionality of which cannot reasonably be separated
from the functionality of the related CaIPX Proprietary Software, and any
derivatives of such Deliverables.

"CalPX Partners" has the meaning given this term in Section 6.5(b)(i).

"CalPX Proprietary Software" has the meaning given this term in Section 4.2(a).

"CalPX Representative" has the meaning given this term in Section 2.6.

"CalPX Software" means CaIPX Proprietary Software and CaIPX Vendor Software.

"CalPX Technology" has the meaning given this term in Section 4.4.

"CalPX Vendor Software" has the meaning given this term in Section 4.2(b).

"Change" means a material addition to or modification in the scope or method of
providing a Service, including any material addition to or modification of the
requirements or specification of any Deliverable.

"Change Control Procedure" means the procedures specified in or developed in
accordance with Section 3.5 pursuant to which Changes to the Services shall be
authorized by the parties.

"Change Order" means a document executed by the parties that authorizes a
Change.

"Change Review Board" has the meaning given this term in Part A of Schedule 3.1.

"Computer Operations Services" means the services described in Part B of
Schedule 3.1.

"Confidential Information" has the meaning given this term in Section 6.2(a).

"Configuration Services" has the meaning given to this term in Part D, paragraph
(a) of Schedule 3.1.


                              Schedule 1.1 - Page 2






"Core Applications" has the meaning given this term in Part C, paragraph (b) of
Schedule 3.1.

"Core Services" has the meaning given this term in Section 3.1(a).

"Critical Services" has the meaning given this term in Schedule 7.8.

"Current Index" has the meaning given this term in Section 5.6.

"Defect" has the meaning given this term in Part D, paragraph (b)(ii) of
Schedule 3.1.

"Defect Notice" has the meaning given this term in Part D, paragraph (B) of
Schedule 3.1.

"Deliverable" means all works of authorship that are prepared for CaIPX by Perot
Systems in connection wit the Services. The Deliverables shall include all
reports, drawings, plans, specifications, computer disks, tapes, printouts,
studies, memoranda, computation sheets, and other information, documents,
records or data, in whatever form or medium that contain CatPX's Confidential
Information.

"Desktop Procurement Services means the services tat are generally described
in Paragraph 2 of Schedule 1.2.

"Desktop Support Services" means the services generally described in Paragraph 2
of Schedule 1.2.

"Developed Software" means any Deliverable that is a software program,
programing script or similar work of authorship.

"disclosing party" has the meaning given this term in Section 6.2(a).

"disruption" has the meaning given this term in Schedule 7.8.

"Documentation" means all manuals, specifications, literature (excluding
generalized product descriptions, advertising materials, and similar items), and
documentation including but not limited to flow diagrams, file descriptions,
codes, and other written information prepared by Perot Systems for CalPX under
this Agreement.

"Effective Date" has the meaning given this term in Section 1.3.

"Embedded Software" has the meaning given this term in Section 6.5(c).

"Excluded Services" means the services described in Schedule 1.2.

"FERC" has the meaning given this term in paragraph 1(a) of Schedule 7.3.


                              Schedule 1.1 - Page 3









"EPA" has the meaning given this term in paragraph 1(c) of Schedule 7.3.

"Full-Time Equivalent" or "ETE" means the level of effort expended by an
individual performing his or her duties for approximately 160 hours per month,
12 months per year, less time off for vacation, holidays, illness, training and
other reasons (including short-term, unpaid marketing and proposal assignments
that do not materially and adversely affect any Services) consistent with Perot
Systems' human resources and benefits policies, provided that for PSC Personnel
assigned to perform Services under this Agreement for a committed duration of
one month or less, the actual time spent performing Services, prorated on a 160
hours per month basis, shall be used to detemine the number of ETEs expended.

"Force Majeure Event" has the meaning given this term in Section 7.12.

"Improved Technology" has the meaning given this term in Section 3.8.

"Initial Term" has the meaning given this term in Section 1.3.

"ISO" has the meaning given this term in paragraph 1(c) (2) of Schedule 7.3.

"IT Procurement Services" has the meaning given this term in Section 3.5.

"IT Steering Committee" has the meaning given this term in Part A, paragraph 6
of Schedule 3.1.

"Key Personnel" has the meaning given this term in Section 2.3.

"Know-How" has the meaning given this term in Section 6.6.

"Losses" has the meaning given this term in Section 8.2(a).

"Make Whole Costs" has the meaning given this term in Section 7.7(c).

"Managed Equipment" means the third-party equipment listed in Part A of Schedule
4.2 that is managed by Perot Systems as part of the Services.

"Managed Software" means the CaIPX Software, CalPX Vendor Software, Third Party
Software, Third Party Tools and Perot Systems Software listed in Schedule 4.2,
all Perot Systems Tools and Perot Developed Software, and all other software
programs agreed to be managed by Perot Systems as part of the Services.

"Management Procedures Manual" has the meaning given this term in Section 3.6.

"Network Services" has the meaning given this term in paragraph 3 of Schedule
1.2.


                              Schedule 1.1 - Page 4






"Non-Transitioned Employees" has the meaning given this term in Section 2.7(c).

"Pass-Through Expenses" means any expenses for third party products and services
that are incurred by Perot Systems while acting as an agent of CalPX.

"Perot Developed Software" shall mean any Developed Software, other than CalPX
Developed Software.

"Perot Systems" has the meaning given this term in the preamble to this
Agreement or any subsidiary or Affiliate of Perot Systems Corporation that
performs Services under this Agreement.

"Perot Systems Software" has the meaning given this term in Section 6.4.

"Perot Systems Tools" has the meaning given this term in Section 6.4.

"Price Index" has the meaning given this term in Section 5.6.

"Privileged Work Product" has the meaning given this term in Section 6.2(0.

"Program Management Services means the services described in Part A of Schedule
3.1.

"PSC Personnel" means employees of, or independent contractors of any level
retained by, Perot Systems providing Services under this Agreement.

"Punch List" has the meaning given this term in Part D, paragraph (b)(ii)(D) of
Schedule 3.1.

"PX" has the meaning given this term in paragraph (1)(c)(1) of Schedule 7.3.

"Quarterly True-Up" has the meaning given this term in Section 5.1(b).

"Reduction Percentage" has the meaning given this term in Section 5.10(a).

"Renewal Term" shall, in each case, mean the period that the term of this
Agreement may be extended or renewed beyond the Initial Term or the then
preceding Renewal Term, as the case may be.

"Required Improvements" has the meaning given this term in Section 4.5.

"Requirements" means the functional and operational requirements for a
Deliverable or Service that are specified by CalPX.


                              Schedule 1.1 - Page 5





"Restricted Territory" has the meaning given this term in Section 6.5(b)(iii).

"RIME" has the meaning given this term in Section 3.1.

"Service Fees" means the fees payable by CalPX for the Services.

"Service Levels" has the meaning given this term in Section 3.2(a).

"Services" has the meaning given this term in Section 3.3(a).

"Standard Commercial Rates" has the meaning given this term in Section 5.2.

"Systems means the Managed Equipment, Managed Software and the Applications that
are operated and managed by Perot Systems as part of the Services.

"Systems Software" means Managed Software and related object and source codes,
and all related supporting documentation and media, tat perform tasks basic to
the functioning of the Managed Equipment or which are required to operate the
Applications or otherwise provide Services, and any modifications, enhancements,
revisions, or supplements to such programs and methods from time to time,
including operating systems, systems utilities, data security software,
compilers, telecommunications monitors and database software.

"Tariff' has the meaning given this term in paragraph (1)(a) of Schedule 7.3.

"Task Orders" has the meaning given this term in Section 3.3(d).

"Term" means the Initial Term and all Renewal Terms.

"Third Party Software" means software programs owned by persons other than Perot
Systems, Ca1PX or any of their Affiliates.

"Third Party Tools" means tools owned by persons other than Perot Systems, CalPX
or any of their Affiliates.

"Transition Assistance" has the meaning given this term in Section 7.11(a).

"Transition Assistance Period" has the meaning given this term in Section
7.11(a).

"Transition Period" has the meaning given this term in Section 3.2(a).

"Transitioned Employees" has the meaning given this term in Section 2.7(c).

"Virus" has the meaning given this term in Section 10.4(a).


                             Schedule 1.1 - Page 6





"Work Product" means all Deliverables and Documentation, including but not
limited to reports, drawings, plans, specifications, computer disks, tapes,
printouts, studies, memoranda, computation sheets, and other information,
documents, records or data, in whatever form or medium (including without
limitation writings, printed and electronic forms) prepared for CalPX by Perot
Systems in connection with the Services provided under this Agreement.

"Y2K Problem" has the meaning given this term in paragraph 1 of Schedule 1.2.





                             Schedule 1.1 - Page 7





                                  SCHEDULE 1.2
                                EXCLUDED SERVICES

Subject to the provisions of Section 3.3(c), CalPX shall have no obligation to
purchase any of the following services from Perot Systems.

1.       Year 2000 Services. Perot Systems shall have no obligation under this
         Agreement to identify, correct or resolve any problem caused by the
         failure of any CalPX Software, CaIPX Vendor Software or CaJPX
         Technology, (i) to record, store, process, or present calendar dates
         falling on or after January 1, 2000, in the same manner, and with the
         same functionality and accuracy, as performed on or before December 31,
         1999; (ii) provide a century indicator on all dates produced therein as
         output or results from its operation; (iii) abnormally end or generate
         an incorrect result when performing date calculations involving either
         a single century or multiple centuries; (iv) sort all files in an
         accurate sequence when sorted by date and read and write in an accurate
         sequence when the date is used as the key for such reading or writing;
         and (v) be capable of determining leap years (each such failure being a
         "Y2K PROBLEM"). Notwithstanding the foregoing, upon request by CalPX
         Perot Systems shall assign PSC Personnel to identify, correct or
         resolve Y2K Problems in substitution for the Services regularly
         performed by such PSC Personnel.

2.       Desktop Support Services and Desktop Procurement Services. Perot
         Systems shall have no obligation under this Agreement to provide
         Desktop Support Services or Desktop Procurement Services.

         The term "DESKTOP SUPPORT SERVICES" means services involving
         maintenance, operation or support (including help desk support
         services) of (i) personal computers (including hardware, software, and
         other components) typically used by a single individual at a time or
         (ii) the local area network or wide area network hardware, software,
         and other components by which such personal computers are linked, that
         are contracted to be performed by IBM Global Services Corporation on
         the Agreement Date.

         The term "DESKTOP PROCUREMENT SERVICES" means services relating to the
         procurement (including but not limited to vendor management, contract
         management, costing, purchase order issuance and acquisition
         management) of (i) personal computers (including hardware, software,
         and other components) typically used by a single individual at a time
         or (ii) the local area network or wide area network hardware, software,
         and other components by which such personal computers are linked, that
         are contracted to be performed by IBM Global Services Corporation on
         the Agreement Date.

3.       Network Services.

         Perot Systems shall have no obligation under this Agreement to provide
         Network Services.

         The term "NETWORK SERVICES" means services involving procurement,
         maintenance, operation or support of (i) hardware, software and other
         components, including but not



                              Schedule 1.2 - Page 1





         limited to routers, hubs, and network interfaces, necessary to support
         a data network from (and including) the router out to the third party
         telecommunications infrastructure, or (ii) hardware, software and other
         components including but not limited to telephone switches, handsets
         and voice network that are being performed by MCI Worldcom on the
         Agreement Date.

4.       Configuration Services.

         Perot Systems shall have no obligation under this Agreement to provide
         Configuration Services.





                              Schedule 1.2 - Page 2



                                  SCHEDULE 2.3
                                    PERSONNEL


Part A -- CalPX Employees





Part B - CalPX Contractors




                             Schedule 2.3 - Page 1




                                  SCHEDULE 2.4
                                  KEY EMPLOYEES



This schedule may be revised from time to time by mutual agreement of the
Account Manager and the CaIPX Representative.

         EMPLOYEE






                             Schedule 2.4 - Page 1




                                  SCHEDULE 2.5

       CORPORATE INFORMATION SECURITIES STANDARDS, GUIDELINES & PROCEDURES





                              Schedule 2.5 - Cover




                                  SCHEDULE 2.7
                                    HR Issues


Perot Systems shall prepare a transition event plan for review and approval by
CalPX prior to the Effective Date.

Transitioned Employees shall be eligible to participate in all Perot Systems'
employee benefit programs, plans and policies, maintained for employees of Perot
Systems under the same terms and conditions as apply to present employees of
Perot Systems. In particular, and without limitation as to other employee
benefits, Perot Systems shall provide health care coverage so that the
Transitioned Employees and their eligible dependents are covered by such
coverage on the Effective Date and Perot Systems shall waive all pre-existing
conditions, exceptions, exclusionary provisions and waiting periods.

For vacations and benefit plans, Perot Systems shall recognize length of service
with CaIPX as length of service for Perot Systems.

Perot Systems shall consider making an accommodation for Transitioned Employees
who have 401k loans under CalPXs 401K Plan and shall consider on a case by case
basis as Perot Systems deems appropriate; provided that Perot Systems shall have
no obligation to amend the Perot Systems Corporation Retirement Savings Plan to
make such accommodation.

Perot Systems shall provide for Tuition Reimbursement for those Transitioned
Employees who are enrolled in courses on the Effective Date that will end after
the Effective Date.







                              Schedule 2.7 - Page 1







                                  SCHEDULE 3.1
                                  BASE SERVICES

Part A -- Program Management Services

1.       Program Office Services.

         Perot Systems shall organize and manage a program office (i) to act as
         a single point of contact to manage CaIPX's information technology
         projects, (ii) to facilitate the integration of common efforts across
         CaIPX's business units, (iii) to act as single point of contact for all
         change requests, (iv) to manage the Enterprise Technology Test Facility
         through which all development projects must pass before being released
         to production, and (v) to facilitate the IT Steering Committee. The
         Account Manager shall lead the program office and each party shall
         assign appropriate personnel to participate in its activities as the
         parties' from time to time agree are appropriate.

2.       Project Management Services.

         Perot Systems shall as appropriate:

         a.       Use project management tools for major projects, and provide
                  current status reports, including identifying issues that are
                  reasonably expected to cause delays in timely completion of
                  projects.

         b.       Work with CaIPX's managers to understand project priorities
                  and budget, and to resolve issues.

         c.       Schedule projects after approval is given by CaIPX in
                  accordance with the Change Control Procedure.

         d.       Coordinate activities and manage the activities of Third Party
                  Vendors, including priorities, requirements, dependencies,
                  deliverables, schedules, and milestones.

         e.       Coordinate cross-functional impacts between Third Party
                  Vendors and CaIPX, including adherence to CalPX's technology
                  and business process standards.

         f.       Create and distribute performance and other reports as
                  mutually agreed between Perot Systems and CalPX.

         g.       Coordinate technical efforts across operations.

         h.       Participate in site planning for IT intiatives requiring
                  specialized site preparation upon request.

         i.       Define and summarize CalPX's information needs and potential
                  IT areas for improvement. Develop strategies and summary
                  implementation plans to address as required upon request.

         j.       Finalize budgets and obtain authorization to implement
                  projects.

         k.       Manage projects in accordance with the authorized budget.

         1.       Work with CaIPX to integrate initiatives into tactical plans.

         m.       Implement reasonably appropriate quality controls as part of
                  processes and procedures.




                              Schedule3.1 - Page 1


3.   Change Control Services.

     Perot Systems shall as appropriate:

     a)   Manage all requests for Change Orders and other changes that are
          reasonably expected to affect the production environment.

     b)   Obtain approvals required by the Change Control Procedure for Change
          Orders and to implement changes to the production environment.

     c)   The Change Review Board.

          (a)  Perot Systems shall organize and coordinate the activities of a
               "CHANGE REVIEW BOARD" to review and approve or reject proposed
               Changes and to prioritize approved Changes and existing
               information technology projects.

          (b)  The Account Manager, the CalPX Representative and one or more
               executive-level employees designated by CalPX shall participate
               in the Change Review Board. The Ca1PX Representative shall chair
               the Change Review Board, which shall meet monthly or more often
               as the parties deem necessary. Perot Systems shall provide
               monthly project status reports on all outstanding information
               technology projects to the Change Review Board.

4.   Enterprise Technology Test Facility Services

     a.   Perot Systems shall manage and operate the Managed Equipment and
          Managed Software comprising the Enterprise Technology Test Facility.

     b.   Schedule usage of the Enterprise Technology Test Facility.

     c.   Develop, review and approve acceptance test plans for software
          applications to be evaluated or tested in the Enterprise Technology
          Test Facility.

     d.   Evaluate and, if appropriate, approve successful tests of software
          applications for release to CalPX's production environment.

5.   Architecture Services

     a.   Propose technology standards for adoption by CalPX and manage
          compliance with adopted standards.

     b.   Develop, maintain and publish Architecture Standards.

     c.   Participate in maintaining and updating CalPX Technology Standards,
          Architecture, Topology, Methods, and Project Plans.

6.   IT Steering Committee Services

     Perot Systems shall organize an IT Steering Committee to (i) participate in
     the development of and approve CalPX's technology plan and budgets, (ii)
     provide senior-level guidance to Perot Systems on CalPX's business
     priorities as they affect the




                             Schedule 3.1 - Page 2

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     Services, and (iii) review and approve Changes submitted through the Change
     Control Procedure. The CalPX Representative shall chair the IT Steering
     Committee and each party shall designate up to four senior personnel,
     including the Account Manager, the CalPX Customer Representative, and such
     other persons as the parties collectively agree are appropriate to
     participate in the IT Steering Committee. The IT Steering Committee shall
     meet weekly or as otherwise mutually agreed.

     The initial members of the IT Steering Committee shall be:

     From Perot Systems:

          Account Manager
          Representatives of each service areas:
                  Program Management
                  Applications Management
                  Computer Operations

     From CalPX:

          CalPX Representative
          Representatives of each major business unit:
                  Trading
                  Settlements and Billing
                  Finance
                  Marketing
                  Compliance
                  Regulatory


                             Schedule 3.1 - Page 3

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Part B --Computer Operations Services

Perot Systems shall operate and manage the Systems seven days per week, 24 hours
per day, by performing the following specific activities:

1.0  CALPX's DATA CENTER OPERATION

     1.1  Perform all master console and sub-system console functions for
          production Systems.

     1.2  Monitor all production processing for the Systems using then-available
          Tools.

     1.3  Using then-available Tools operate CalPX's Systems and Applications.

     1.4  Provide system availability in accordance with the Service Levels.

     1.5  Make available, monitor, and process on-line and batch applications,
          including scheduled jobs re-runs, end-user requested processing for
          the production Systems. Start application scheduling scripts (cron
          jobs). Monitor Application batch cycles for completion as scheduled.

     1.6  Resolve system-related problems in accordance with Service Levels.

     1.7  Using then-available Tools monitor batch jobs and overnight processing
          for successful completion for production Systems.

     1.8  Using then-available Tools monitor for, and notify the Help Desk,
          CalPX and third parties, as appropriate, of, problems with production
          Systems in accordance with mutually agreed escalation procedures.

     1.9  Evaluate, recommend, and, subject to CalPX approval, implement Tools
          required to perform systems automation, management, and reporting.

     1.10 Perform resolution and restart activities (including data set
          synchronization) for abnormally ended batch Applications.

     1.11 Maintain operations logs of CalPXs data center activities, systems
          problems, and report incidents to level I support.

     1.12 Perform and monitor production Systems start-up and shut down.

     1.13 Perform scheduled "full backups" and "incremental backups" of
          production Systems, including databases, file systems, and Systems
          Software on production Systems in accordance with CalPX's backup
          schedules.

     1.14 Conduct an annual test of the Disaster Recovery Plan.

     1.15 Develop, maintain, and execute, as required, restore procedures for
          production Systems. Assist in the execution of the restore procedures
          for Applications.

     1.16 Manage production Systems in accordance with the Change Control
          Procedure.

     1.17 Reestablish Systems Software after failure and coordinate with
          application support personnel any application recovery issues.

     1.18 Establish and manage the maintenance window.

     1.19 Provide Managed Equipment problem identification and resolution.

     1.20 Perform or arrange for Managed Equipment maintenance.

     1.21 Provide coordination, assistance, and acceptance of new Managed
          Equipment services, (e.g. installations, cabling, and training) using
          Perot Systems' resources assigned to CalPX's account within the
          existing capability of Managed Equipment.



                             Schedule 3.1 - Page 4

ITSA_Final                                                              20000217



2.0  PRODUCTION CONTROL AND SCHEDULING

     2.1  Develop, maintain, initiate, and monitor all production Systems
          schedules (e.g., on line, batch, technical support, off-hours, and
          restricted period).

     2.2  Resolve scheduling conflicts with CalPX.

     2.3  Provide schedule status updates to CalPX, as reasonably requested.

     2.4  Process on-request jobs.

3.0  TAPE OPERATIONS AND ADMINISTRATION

     3.1  Perform all tape mount requests at CalPX's data center.

     3.2  Perform output distribution activities for the tape library, as
          required. CalPX shall pay costs of media distribution.

     3.3  Maintain and administer tape library at CalPX's data center.

     3.4  Maintain integrity of tape library system at CalPX data center.

     3.5  Monitor tape hardware for malfunction.

     3.6  Monitor tape usage.

     3.7  Perform daily tape hardware and media maintenance.

     3.8  Initialize new tapes.

4.0  OFF-SITE STORAGE FOR THE DATA CENTER

     4.1  Develop, coordinate, and execute standard off site operational storage
          requirements as defined in the Disaster Recovery Plan.

     4.2  Archive production data.

     4.3  Coordinate off-site storage functions as defined in the Disaster
          Recovery Plan.

     4.4  Review and comply with the physical specifications, retention periods,
          and security procedures mutually agreed by the parties in accordance
          with the Disaster Recovery Plan for off site stored output.

     4.5  Execute off-site storage procedures in accordance with the Disaster
          Recovery Plan.

5.0  OPERATIONS DOCUMENTATION

     5.1  Create and maintain current all operations and related technical
          documentation including an inventory of all hardware and software, and
          software release levels for all production Systems.

     5.2  Maintain Change Control Procedure documentation.

     5.3  Maintain and propagate standard methodologies and Tools within the
          production Systems.

6.0  HARDWARE SUPPORT

     6.1  Manage Third Party Vendors of Managed Equipment with respect to
          planning, installation, and problem resolution using the PSC
          Personnel.

     6.2  Provide hardware sizing estimates with the existing resources.

     6.3  Administer equipment leases for Managed Equipment.

     6.4  Coordinate and assist in regular maintenance for Managed Equipment.




                             Schedule 3.1 - Page 5

ITSA_Final                                                              20000217


     6.5  Initiate and track requests for space, power and other technical
          center modifications in support of Managed Equipment installations.

     6.6  Use then-available Tools to allocate and maintain space, equipment and
          cabinets, (e.g., inventories and layouts) for Managed Equipment
          located at CalPX's Data Center.

     6.7  Diagnose and coordinate the resolution of Managed Equipment problems
          in accordance with applicable maintenance contracts.

     6.8  Schedule, coordinate, and supervise changes to Managed Equipment,
          including parts provisioning and testing, site survey verification,
          capacity, redeployment, and integration for Managed Equipment.

7.0  DATA CENTER PLANNING

     7.1  Recommend, and, if approved by CalPX, procure and maintain spare
          equipment needed to meet Service Levels.

     7.2  Provide guidance and coordination for Managed Equipment installations,
          routine maintenance, problem and crisis management.

8.0  TECHNICAL SUPPORT

     General

     8.1  Assist with new product evaluations, project support, applications
          tuning or efficiency improvements, and other IT-related projects using
          available PSC Personnel.

     8.2  Evaluate, install/deinstall, customize, test, and maintain System
          Software.

     8.3  Provide technical advice and support to CalPX applications and
          operations staff

     8.4  Notify help desk of critical outages.

     8.5  Support the Disaster Recovery Plan.

     8.6  Provide vendor access to Managed Equipment as required to resolve
          problems or perform hardware maintenance. Provide technical liaison
          for third party vendors.

     8.7  Perform or, where appropriate, arrange for Third Party Vendors to
          perform, Systems maintenance.

     8.8  Maintain version control of Systems Software and Application.

     8.9  Manage Third Party Vendor problem resolution activities for production
          Systems.

     CAPACITY PLANNING

     8.10 Forecast resource requirements (disk, memory, etc.) for Managed
          Equipment.

     8.11 Develop a capacity plan. Manage capacity plan review and approval
          process.

     8.12 Analyze and report resource trends.

     8.13 Provide operational input for hardware planning for the Systems.

     8.14 Coordinate and manage projects to install storage devices.

     CONFIGURATION PLANNING

     8.15 Evaluate alternative configurations and recommend solutions.



                             Schedule 3.1 - Page 6

ITSA_Final                                                              20000217


     8.16 Establish and maintain standard configurations and related
          documentation for production Systems.

     PERFORMANCE

     8.17 Use reasonable commercial efforts to optimize the performance of
          Managed Equipment and Managed Software at the CalPX's data center to
          reduce costs or improve Service Levels.

     8.18 Provide production System performance tuning.

     8.19 Monitor System Software impacts on performance and recommend
          enhancements, as appropriate.

     8.20 Monitor performance of the Systems.

     8.21 Using then-available Tools, report on service level performance.

9.0  DATA CENTER STORAGE MANAGEMENT

     9.1  Monitor and control storage performance and usage using then-available
          Tools

     9.2  Monitor and control mirrored disk systems.

     9.3  Assign and initialize direct access storage volumes.

     9.4  Replace or coordinate the replacement of failed disk drives and
          systems.

     9.5  Maintain established disk storage standards.

     9.6  Maintain disk space requirements to accommodate CalPX business growth
          forecasts as authorized by CalPX.

     9.7  Provide direct disk storage technology and storage management.

     9.8  Perform catalog management.

     9.9  Provide Third Party Vendor access to Managed Equipment as required to
          resolve problems or perform hardware maintenance. Provide technical
          liaison for Third Party Vendors.

     9.10 Install and move Managed Equipment, with Third Party Vendor support,
          as required, in accordance with the Change Control Procedure.

     9.11 Monitor and adjust disk space allocations.

10.0 DATABASE MANAGEMENT FOR PRODUCTION SYSTEMS ONLY

     10.1 Maintain physical databases.

     10.2 Support database software.

     10.3 Manage production database availability, including space planning for
          expansions (segments, extents, table free space, transaction logs,
          etc.).

     10.4 Perform production database reorganizations and changes due to
          application changes or to optimize performance (e.g., redundancy,
          access, etc.).

     10.5 Perform ongoing production database management and tuning of the
          production database, including interactions with production hardware,
          software, and operating systems.

     10.6 Install new database management System Software releases.

     10.7 Perform production database administration.

     10.8 Perform production database log monitoring and tracking.

     10.9 Assist and coordinate Third Party Vendor problem resolution
          activities.



                             Schedule 3.1 - Page 7

ITSA_Final                                                              20000217


      10.10 Perform production database object management (index relocations and
            rebuilds, table relocations and rebuilds, rollback segment resizing,
            on-line redo log management, temporary segment management).

      10.11 Provide operational interfacing with application database
            administrators m relation to testing environment databases. Support
            data analysis, modeling, and logical database design.

      10.12 Perform database administration using then-available Tools.

      10.13 Maintain appropriate redundancy and fail-over capabilities -- may
            not be automatic for some applications.

11.0  ADMINISTRATION

      11.1  Recommend and implement Managed Equipment utilization planning,
            including redeployment of user workstations, except for desktop
            workstations, in accordance with CalPX business policies.

      11.2  Administer leases for Managed Equipment, including monitoring
            expiration, warranty and technical terms and review invoices prior
            to submission for payment by CalPX, but excluding arranging for
            payment of lease payments.

      11.3  Order and coordinate installation of Managed Equipment.

      11.4  Administer software licenses for Managed Software and System
            Software.

      11.5  Monitor software maintenance levels and recommend updates as
            appropriate.

12.0  INFORMATION SECURITY AND DISASTER RECOVERY

      12.1  Establish, maintain, and implement the security policies and
            procedures approved by CalPX.

      12.2  Establish, maintain, and implement security administration
            processes, including User ID administration standards, providing
            special authorities, and purging unused access.

      12.3  Perform Application security administrative functions, including
            implementing functions of access control software up to and
            including the front-end application (GUI) and database access.

      12.4  Manage authorizations and access for users and operations to the
            Systems.

      12.5  Perform password administration for all supported Systems Software,
            database environments, LAN systems, and network components.

      12.6  Implement and maintain a security violation log that shall be
            reported to management.

      12.7  Use then-available Tools approved by CalPX to restrict unauthorized
            use of Managed Equipment and network devices.

      12.8  Provide secure storage for portable storage media relating to
            production servers.

      12.9  Maintain appropriate tracking of Managed Equipment.

      12.10 Identify, implement, and maintain virus avoidance, detection and
            elimination software for servers.

      12.11 Recommend and implement Tools to maintain commercially reasonable
            security controls for dial-in services.




                             Schedule 3.1 - Page 8

ITSA_Final                                                              20000217



      12.12 Define specific disaster recovery requirements and propose a
            Disaster Recovery Plan. Use reasonable commercial efforts to ensure
            that the Disaster Recovery Plan remains current at all times.

      12.13 Restore operating environment upon failure within agreed-upon time
            frames and parameters, according to the CalPX approved Disaster
            Recovery Plan.

      12.14 Store CalPX-identified critical information and media off site in
            accordance with the Disaster Recovery Plan paid for by CalPX.

      12.15 Work with CalPX to identify test objectives for the annual test of
            the Disaster Recovery Plan.

      12.16 Establish and monitor disaster recovery facilities in accordance
            with the Disaster Recovery Plan.

      12.17 Provide operational support requirements for the Applications
            disaster recovery solutions in accordance with the Disaster Recovery
            Plan.

      12.18 Maintain recovery management (file backup/recovery) processes for
            Managed Equipment at the Data Center and current listings of system
            configurations for such Managed Equipment in accordance with the
            Disaster Recovery Plan.

      12.19 Provide procedures for moving media from off-site storage to
            recovery center m accordance with the Disaster Recovery Plan.

      12.20 Provide recovery site resources for system recovery in accordance
            with the Disaster Recovery Plan.

      12.21 Develop, manage, and implement approved disaster declaration
            policies in accordance with the Disaster Recovery Plan.

      12.22 Provide contact lists of personnel responsible for coordinating and
            managing recovery planning procedures in accordance with the
            Disaster Recovery Plan.

      12.23 Provide and maintain procedures for emergency recovery of Managed
            Equipment at the Data Center and successful transfer of operations
            to the alternate-processing site.

      12.24 Develop and implement procedures to be followed at recovery center
            in accordance with the Disaster Recovery Plan.

      12.25 Make Changes to the Disaster Recovery Plan using the Change Control
            Procedure.

      12.26 Develop and implement Disaster declaration processes, including
            Third Party Vendor notification, establishing CalPX communication
            points, and activating the Disaster Recovery Plan.

      CalPX and Perot Systems shall revise the scope and description of all
      Services relating to disaster recovery in this Schedule 3.1 as appropriate
      after the Required Improvements relating to disaster recovery are
      completed.

13.0  HELP DESK, PROBLEM MANAGEMENT AND REPORTING

      13.1  Establish single point of contact on a 7 days a week, 24 hours a day
            basis, that provides assistance for end-user problems, and
            coordinate problem tickets, through a supplied and supported problem
            management system.

      13.2  Respond to end-user service requests and problem reports, in
            accordance with escalation processes that assign severity levels by
            problem.



                             Schedule 3.1 - Page 9

ITSA_Final                                                              20000217


      13.3  Log appropriate caller information into a centralized problem
            management System.

      13.4  Identify appropriate support group for escalated problems.

      13.5  Identify training opportunities for CalPX's employees based on
            problem history using PSC Personnel.

      13.6  Seek opportunities for continuous improvement for Help Desk
            activities.

      13.7  Initiate work request for the applications support team, when
            necessary.

      13.8  Track problems through resolution.

      13.9  Establish and manage problem prioritization.

      13.10 Provide direct access to all appropriate operations staff when
            required.

      13.11 Establish standards and procedures for Help Desk calls.

      13.12 Provide on-call Help Desk operational support, and if provided, to
            CalPX's application support staff.

      13.13 Track and provide status on all reported incidents.

      13.14 Confirm with initiator that problem has been corrected and close
            incidents accordingly.

      13.15 Provide daily status report containing all outstanding problems.

      13.16 Analyze trends and recommend actions to resolve recurring problems
            upon request using PSC Personnel.

      13.17 Provide prompt notification and escalation of critical problems or
            outages.

      13.18 Collect and report Help Desk statistics monthly.

      13.19 Provide information to end-users on Help Desk functions and
            availability.

      13.20 Communicate application and environment information to Help Desk
            personnel.

      13.21 Provide assistance and recommendations for "work around" solutions
            when technology has failed or under performed.

      13.22 Perform and supervise problem process as defined by the problem
            management procedure guide.

      13.23 Create and publish bulletins and procedures regarding issues and
            changes to CalPX's production Systems, and communicate these to user
            communities defined by Ca1PX.

      13.24 Perform weekly problem management reviews in order to identify
            repetitive problems.

      13.25 Open problem tickets to initiate work requests for Application
            changes.




                             Schedule 3.1 - Page 10

ITSA_Final                                                              20000217


Part C - Application Maintenance Services

(a)   APPLICATION MAINTENANCE SERVICES.

      (i)   Perot Systems shall maintain the CalPX Proprietary Software and
            Perot Systems Software identified in Part A and Part C,
            respectfully, of Schedule 4.1. Perot Systems shall have no
            obligation to maintain any other software programs, except as agreed
            in accordance with the Change Control Procedure.

      (ii)  For CORE APPLICATIONS:

            o     Perot Systems shall provide first line problem determination
                  on a 7 days a week, 24 hours per day basis.

            o     Perot Systems shall provide second line problem resolution
                  support for Core Applications whose source code it can access
                  and modify based on the severity level problem determination
                  defined in paragraph C of Schedule 3.3.

      (iii) For NON-CORE APPLICATIONS:

            o     Perot Systems shall provide first line problem determination
                  during Normal Business Hours.

            o     Perot Systems shall provide second line problem resolution
                  support for non-Core Applications whose source code it can
                  access and modify on a reasonable commercial efforts basis.

(b)   CORE APPLICATIONS.

o     During the Transition Period, CalPX and Perot Systems shall validate and
      revise as appropriate the following list of Core Applications. After the
      Transition Period, this list of Core Applications shall be modified, if at
      all, by the parties through the Change Control Procedure.

<Table>
<Caption>
                                                                 SOFTWARE
               SOFTWARE DESCRIPTION                              VERSION
                                                              
          Block Forward Ticker                                    1.0
          BuckEye (ISODAB)                                        2.1
          Zonal Price Calculation (DA & HA)                       1.1.9
          Metering System                                         1.2
          Over Generation Management (DA & HA)                    1.0.1
          PeopleSoft                                              7.5
          Post-Processor                                          5.2.1
          PowerBase                                               1.15
          Pre-Processor Plus                                      1.6.1
          Web (ST)                                                1.15
          Zonal Price Checker (DA & HA)                           1.0
</Table>



                             Schedule 3.1 - Page 11

ITSA_Final                                                              20000217







o     During the Transition Period, CalPX and Perot Systems shall validate and
      revise as appropriate the following list of Core Applications that are
      provided by OM Technology. After the Transition Period, this list of Core
      Applications shall be modified, if at all, by the parties through the
      Change Control Procedure.

<Table>
<Caption>
                                                                 SOFTWARE
               SOFTWARE DESCRIPTION                              VERSION
                                                              
          Block Forward Secure Back Office                       4.3
          Block Forward CIBIOS Trade Application                 3.0 - 6.7
          Day Ahead Bidding& Scheduling                          5.1.16
          Hour Ahead Bidding& Scheduling                         5.1.15
          OM Net OMEX (network gateway)                          2.2.1
          Settlements                                            5.1.7.1
          Trade Application                                      5.1.14
          Block Forward Click                                    3.01
</Table>





                             Schedule 3.1 - Page 12

ITSA_Final                                                              20000217

Part D -- Applications Development Services

a)    APPLICATION DEVELOPMENT SERVICES.

o     Perot Systems shall assist CalPX personnel to develop, enhance and review
      the functional requirements for Application and Developed Software
      identified by the Program Office that has been approved for acquisition or
      development through the Change Control Procedure in accordance with
      technology standards, development budgets and schedules approved by CalPX
      from time to time.

o     Perot Systems and CalPX shall review, and revise as necessary, the
      functional requirements, development budget and development schedule for
      each Application. Following CalPX's approval of these items, Perot Systems
      shall prepare a Change Order confirming the requirements, development
      budget and schedule for submission to the Change Review Board. Work shall
      begin under the Change Order promptly after its execution by CalPX and
      Perot Systems.

o     All enhancements to Application shall be considered part of Application
      Development Services.

o     All services required to introduce or integrate any software into CalPX
      systems, including customization or configuration of such software, shall
      be considered part of Application Development Services, provided, however,
      that if the vendor of Third Party Software requires that (i) such vendor
      customize or configure its software, or (ii) an authorized reseller,
      systems integrator or similar service provider customize or configure its
      software, then such customization or configuration of such software shall
      not be considered part of Application Development Services unless Perot
      Systems is an authorized reseller, systems integrator or similar service
      provider at the time the Third party Software is acquired by CalPX
      ("Configuration Services").

o     Perot Systems shall have no obligation to enhance any Application whose
      source code it can not access and modify.

b)    ACCEPTANCE.

      Acceptance of Deliverables shall be conducted in accordance with the
      following procedures.

o     Documentation. Perot Systems may submit interim drafts of Documentation to
      CalPX for its review. CalPX shall review each interim draft within 15
      business days after receiving it. When Perot Systems delivers final
      Documentation to CalPX, CalPX shall have the opportunity to review the
      written deliverable for an acceptance period of 10 business days after
      receiving it ("ACCEPTANCE PERIOD"). CalPX shall notify Perot Systems'
      Account Manager in writing by the end of the Acceptance Period either
      stating that the Documentation is accepted in the form delivered or
      describing in reasonable detail any deficiencies that must be corrected
      prior to acceptance. If CalPX does not send a deficiency notice by the end
      of the Acceptance Period, the Documentation shall be deemed to be
      ACCEPTED. If CalPX sends a timely notice of deficiencies, Perot Systems
      shall correct the described deficiencies as promptly as possible;
      provided, however, if Perot Systems, upon




                             Schedule 3.1 - Page 13

ITSA_Final                                                              20000217




      providing CalPX's Account Manager a detailed justification of its
      position, does not believe that CalPX has identified a deficiency, the
      parties shall follow the procedures set forth in Article 7. Upon receipt
      of corrected Documentation from Perot Systems, CalPX shall have a
      reasonable additional period of time, not to exceed 15 business days, to
      review the corrected Documentation to confirm that the identified
      deficiencies have been corrected.

o     Deliverables. At least 30 days prior to the date on which Perot Systems is
      scheduled to deliver any Deliverable to CalPX for testing, Perot Systems
      shall deliver proposed testing procedures for the Deliverable for CalPX's
      review. At least 15 days prior to the date on which Perot Systems is
      scheduled to deliver the Deliverable to CalPX, the parties shall agree
      upon the testing procedures for the Deliverable and the objective criteria
      for determining whether the Deliverable should be accepted ("ACCEPTANCE
      TEST PLAN"). The purpose of the Acceptance Test Plan shall be to determine
      whether the Deliverable performs the functions described in its approved
      specifications and performs the Requirements without any Defects. As used
      in this Agreement, "DEFECT" means a reproducible failure of a Deliverable
      to satisfy the Acceptance Test Plan. Acceptance of Software deliverables
      shall be conducted in accordance with the following procedures.

      (A)   The Acceptance Test Period for each Deliverable shall be specified
            in the relevant Project Plan.

      (B)   Perot Systems and CalPX shall start to perform Acceptance Testing on
            each Deliverable promptly after receiving Perot Systems' notice that
            the Deliverable is ready for acceptance. Acceptance Testing shall be
            performed as set forth in the Acceptance Test Plan. If CalPX
            determines during the Acceptance Period that the Deliverable has one
            or more Defects, CalPX shall promptly send to Perot Systems' Account
            Manager a notice ("DEFECT NOTICE") describing the alleged Defect(s)
            in sufficient detail to allow Perot Systems to recreate it or them.
            The parties shall use commercially reasonable efforts to identify
            all Defects prior to the end of the Acceptance Test Period.

      (C)   Perot Systems shall correct any Defects in a Deliverable promptly
            after receiving a Defect Notice and provide the corrections to CalPX
            for re-testing. CalPX shall promptly re-test any corrected portions
            of a Deliverable after receiving the corrections from Perot Systems.

      (D)   If any remaining uncorrected Defects exists in the Deliverable at
            the end of the Acceptance Test Period, CalPX shall provide Perot
            Systems by the end of the Acceptance Test Period with notice of the
            final list of outstanding Defects, describing them in sufficient
            detail to allow Perot Systems to recreate them ("PUNCH LIST"). Perot
            Systems shall correct any Defects identified on the Punch List
            promptly after receiving the Punch List. When all Defects on the
            Punch List have been corrected, Perot Systems shall provide the
            corrections to CalPX. The parties shall have 15 days after receipt
            of the corrections, unless the parties agree to a different period
            in writing, to re-test the corrected Deliverable to confirm the




                             Schedule 3.1 - Page 14

ITSA_Final                                                              20000217


            correction of the Defects identified on the Punch List and to
            identify any remaining Defects. If CalPX determines that any Defects
            identified in the Punch List have not been corrected, CalPX shall
            provide Perot Systems by the end of the 15-day re-testing period
            with notice of a revised Punch List, which may include Defects not
            identified on the Punch List. Perot Systems shall promptly correct
            any Defects that are identified in the revised Punch List and
            provide the corrections to CalPX. The parties shall have a further
            15 day period after receipt of the corrections, unless the parties
            agree to a different period in writing, to retest the corrected
            Deliverable to confirm the correction of the Defects. If CalPX
            determines as a result of the re-testing that the Software
            deliverable still contains one or more Defects, CalPX shall notify
            Perot Systems' Account Manager, who shall promptly cause Perot
            Systems to perform a root cause analysis of such Defects and refer
            the matter to the IT Steering Committee. If the IT Steering
            Committee is unable to resolve the matter within 15 days after the'
            matter is submitted to it, any party may submit the matter to the
            dispute resolution procedures set forth in Article 7.

      (E)   Perot Systems and CalPX each agree to work diligently to achieve
            Acceptance of each Deliverable at the earliest possible date.





                             Schedule 3.1 - Page 15

ITSA_Final                                                              20000217




Part E -- Business Consulting Services

The PSC Personnel assigned to provide Business Consulting Services to CalPX
shall, upon request by Ca1PX, provide advice to CalPX in the following
substantive areas:

o     Trading and scheduling

o     Business and regulatory affairs

o     Settlements calculation

o     Market compliance

o     Information technologies

o     Finance

o     Marketing

o     Product Development

Business Consulting Services shall include the following activities, among
others:

o     Design, review, document or train on business protocols for CalPX and
      other participants in the California energy market, including the
      California Independent System Operator (ISO), upon request by CalPX;

o     Design, review, or document regulatory filings for CalPX and all other
      participants in the California energy market, including the ISO, upon
      request by CalPX; and

o     Design, review, document or train on information technology solution
      methods and algorithms, including development and review of mathematical
      model, computational algorithm and detailed functional specifications.

All services related to the above activities including but not limited to
meeting with CalPX's staff, ISO staff and all other participants in the
California energy market, including preparation time for training shall be
deemed as Business Consulting Services.





                             Schedule 3.1 - Page 16

ITSA_Final                                                              20000217



                                  SCHEDULE 3.3
                                 SERVICE LEVELS

A.   Service Levels -- General Provisions

During the Transition Period CalPX and Perot Systems shall validate the service
levels set forth in this Schedule 3.3 Commencing with the first full calendar
month after the Transition Period for new Application, each performance metric
shall be measured and reported to CalPX on a monthly basis.

     Perot System shall perform Services for which no Service Level is
     specified in this Schedule 3.3 at least at the same level, and with the
     same degree of accuracy, quality, completeness and responsiveness as CalPX
     performed such Services prior to the Effective Date.

     Assumptions and Pre-conditions: Perot Systems' obligation to comply with
     the Service Levels set forth in this Schedule 3.3 is contingent upon the
     accuracy of the assumptions and the satisfaction of the pre-conditions set
     forth below. If any of these assumptions are inaccurate or any of these
     pre-conditions are not satisfied, Perot Systems and CalPX shall negotiate
     in good faith to adjust the Service Levels appropriately or to select
     alternate Service Levels.

     o  Each Service shall be measured using then existing measurement Tools.

     o  Service availability shall be calculated by dividing (i) the number of
        minutes the applicable server is responding to system commands, by
        (ii) the total number of minutes in the applicable month, based on 7 x
        24 availability, minus the total number of minutes of downtime
        (a) reserved for system maintenance windows, (b) reserved for CalPX
        approved, non-routine maintenance periods, (c) reserved for CalPX
        approved Application installation periods, (d) caused by defects in
        Managed Equipment, Applications (except to the extent such defects
        result from modifications to such Applications made by PSC Personnel),
        or services provided by Third Party Vendors (other than PSC Personnel),
        (e) caused by processing transaction volumes in excess of those for
        which the applicable system was designed, (f) caused by an Application
        that has not been tested in a reasonably adequate test environment for a
        reasonably adequate time period before being placed into the production
        System, and (g) defects in Applications (except to the extent such
        defects results from modifications to such Application made by PSC
        Personnel), or services provided by Third Party Vendors (other than PSC
        Personnel).

     o  CalPS shall authorize the replacement or repair, as reasonably
        appropriate, of any hardware and software reasonably necessary (i) to
        replace hardware that begins to exhibit erratic performance or has
        otherwise become obsolete, (ii) to

                             Schedule 3.3 - Page 1

        upgrade such hardware or software in accordance with the recommendations
        of its manufacturer, (iii) to interoperate properly with other hardware
        or software authorized to be replaced by CalPX, or (iv) to process the
        transaction volumes then being processed by the applicable hardware or
        software.

     o  Service Levels shall be measure but not enforce until the next calendar
        month following each (i) transition to a new hardware or software
        platform that affects the applicable Service Level and (ii)
        implementation of new Applications that affects the applicable Service
        Level.

     o  Unless otherwise agreed, the scheduled system maintenance window shall
        be 12:01 a.m. to 3:00 a.m. Pacific Time each Saturday and Sunday.


<Table>
                                                                                                           
- ------------------------------------------------------------------------------------------------------------------------------------
 SERVICES OR              SERVICE OBJECTIVE                    SERVICE LEVEL                SERVICE LEVEL METRIC       SERVICE LEVEL
SYSTEMS TO BE                                                                                                           REQUIREMENT
  MONITORED
- ------------------------------------------------------------------------------------------------------------------------------------
Production       Servers running Core Applications    Perot System shall cause servers     A server shall be deemed           95%
Services         used by CalPX to operate the         running Core Applications used       "available" if the operating
                 day ahead and hour ahead market      by Cal\PX to operate the day         system installed on such
                 should be "available" 7 days per     ahead and hour ahead markets         server is responding to
                 week, 24 hours per day.              to be "available" 7 days per         console commands entered
                                                      week, 24 hours per day,              at the server.
                                                      except during maintenance
                                                      windows and other scheduled
                                                      outages approved in advanced
                                                      by CalPX, for at least the
                                                      percent of time set forth
                                                      under the heading Service
                                                      Level Requirement.
- ------------------------------------------------------------------------------------------------------------------------------------
Back-Office      Servers running Core Applications    Perot System shall cause servers     A server shall be deemed           95%
Servers          that are used by Cal\PX (i) to       running Core Applications used by    "available" if the operating
                 settle transactions from day ahead   CalPX (i) to settle transactions     system installed on such
                 and hour ahead markets or (ii) to    from the day ahead and hour ahead    server is responding to
                 manage its financial or other        markets or (ii) to manage its        console commands entered
                 internal operations (e.g.,           financial or other internal          at the server.
                 PeopleSoft applications) should      operations to be "available"
                 be "available" 7 days per week,      7 days per week, 24 hours per
                 24 hours per day.                    day, except during maintenance
                                                      windows and other scheduled
                                                      outages approved in advance by
                                                      CalPX, for at least the percent
                                                      of time set forth under the
                                                      heading Service Level Requirement.
- ------------------------------------------------------------------------------------------------------------------------------------
Test/Market      Servers forming part of the          Perot System shall cause servers     A server shall be deemed           95%
Simulation       Enterprise Technology Test           forming part of the Enterprise       "available" if the operating
Servers          Facility should be "available"       Technology Test Facility to be       system installed on such
                 during Normal Business Hours         "available" during Normal Business   server is responding to
                 and otherwise during scheduled       Hours, except during maintenance     console commands entered
                 simulations during scheduled         windows and other scheduled          at the server.
                 test periods.                        outages (including outages to
                                                      reconfigure hardware or software)
                                                      approved in advance by CalPX, for
                                                      at least the percent of time set
                                                      forth under the heading Service
                                                      Level Requirement.
- ------------------------------------------------------------------------------------------------------------------------------------
</Table>


                             Schedule 3.3 - Page 2



<Table>
                                                                                                           
- ------------------------------------------------------------------------------------------------------------------------------------
 SERVICES OR              SERVICE OBJECTIVE                    SERVICE LEVEL                SERVICE LEVEL METRIC       SERVICE LEVEL
SYSTEMS TO BE                                                                                                           REQUIREMENT
  MONITORED
- ------------------------------------------------------------------------------------------------------------------------------------
Gateway          The DEC Alpha servers running the   Perot Systems shall cause the DEC   A server shall be deemed           95%
Servers          OM Gateway should be "available"    Alpha servers running the OM        "available" if the operating
                 days per week, 24 hours per day.    Gateway to be "available" 7 days    system installed on such
                                                     per week, 24 hours per day,         server is responding to
                                                     except during maintenance windows   console commands entered
                                                     and other scheduled outages         at the server.
                                                     approved in advance by CalPX, for
                                                     at least the percent of time set
                                                     forth under the heading Service
                                                     Level Requirement.
- ------------------------------------------------------------------------------------------------------------------------------------
User accounts   User accounts and user IDs for       During Normal Business Hours,       A request for an activation        95%
and ID          CalPX employees should be            Perot Systems shall activate or     of or a change to a user
                activated or changed within four     change each user account or user    account or user ID shall be
                hours after receiving a proper       ID within four business hours       deemed to be proper if the
                request for such action.             after receiving a proper request    request is submitted though
                                                     for such action, for at least the   Perot Systems' help desk or
                                                     percentage of requests set forth    electronic ticketing system
                                                     under the heading Service Level     with the approvals required
                                                     Requirement.                        by the Management Procedures
                                                                                         Manual.
- ------------------------------------------------------------------------------------------------------------------------------------
Password        User passwords that have expired     During Normal Business Hours,       A request for a password           94%
Resets          or have been suspended should be     Perot Systems shall reset each      reset shall be deemed to be
                reset within 15 minutes after        user password that has expired or   proper if the request is
                receiving a proper request for       has been suspended within 15        submitted through Perot
                such action.                         minutes after receiving a proper    Systems' help desk or
                                                     request for such action, for at     electronic ticketing system
                                                     least the percentage of requests    with the approvals required
                                                     set forth under the heading         by the Management Procedures
                                                     Service Level Requirement.          Manual.
- ------------------------------------------------------------------------------------------------------------------------------------
Help Desk       Calls to the help desk should be     During Normal Business Hours,       This service level shall be        90%
Call Res;onse   answered within 30 seconds during    Perot Systems shall answer all      measured based upon call
Time            Normal Business Hours.               calls to the help desk within       reports from CalPX's ACD
                                                     30 seconds for at least the         or equivalent system, and
                                                     percentage of calls set forth       shall exclude delays in
                                                     under the heading Service Level     answering during which
                                                     Requirement.                        recorded messages are being
                                                                                         played.
- ------------------------------------------------------------------------------------------------------------------------------------
Backups         Backup procedures for each System    Perot Systems shall perform the     CalPX and Perot Systems            96%
                should be performed as provided in   backup procedure for each System    shall establish backup
                the Management Procedures Manual.    as provided in the Management       procedures and schedules
                                                     Procedure Manual in at least the    within 60 days after the
                                                     percentage of cases as set forth    Effective Date.
                                                     under the heading Service Level
                                                     Requirement.
- ------------------------------------------------------------------------------------------------------------------------------------
</Table>

C.   Problem Resolution Commitments

     Perot Systems shall provide the support services described in the tables
     below to resolve problems within the time periods specified in the tables
     below for problems of the severity described below for systems and
     Applications that it has access to and can modify.


                             Schedule 3.3 - Page 3


DEFINITION OF TERMS

Severity Level:     The severity level reasonably assigned to a problem by
                    CalPX and Perot Systems based on the impact of that problem
                    on CalPX's business.

Definition:         The general nature of the problem that falls within the
                    applicable Severity Level.

Support:            The general level of support that Perot Systems and CalPX
                    shall provide while attempting to resolve a problem of the
                    applicable Severity Level.

Service Level:      Maximum amount of time Perot Systems shall take to resolve
                    a problem of the applicable Severity Level.

Status Update:      The frequency with which CalPX shall be updated on the
                    status of the problem.

Report Required:    If YES, then Perot Systems shall regularly report its
                    problem resolution status to CalPX.


                             Schedule 3.3 - Page 4

<Table>
<Caption>
- ----------------------------------------------------------------------------------------------------------------------------------
SEVERITY            DEFINITION              SUPPORT                                     SERVICE LEVEL       STATUS        REPORT
LEVEL                                                                                                       UPDATE        REQUIRED
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                             
01          A problem shall be         Perot Systems shall provide uninterrupted        Perot Systems       Every hour      Yes
            assigned this              problem isolation and determination services.    shall resolve or    until the
            severity level if (i)                                                       provide             ticket first
            the majority of users      Perot Systems shall implement workarounds        workarounds         reaches Temp
            at the applicable site     and patches immediately after testing such       for 98% of all      Fix, Resolved
            are adversely              items as provided in the Management              problems            or Closed
            affected, (ii) the         Procedures Manual. Perot Systems shall           assigned this       status.
            problem has high           implement hardware and software upgrades         Severity Level
            visibility, and (iii)      implementing more thorough resolutions           within four
            there is no                during the first available maintenance           hours.
            workaround                 window after testing of such upgrades is
            available.                 completed.

            Example: A file            CalPX shall provide on-site support to
            server is not              assist in problem isolation and
            available.                 determination activities and to test
                                       problem resolution.
- ----------------------------------------------------------------------------------------------------------------------------------
02          A problem shall be         Perot Systems shall provide  problem             Perot Systems       Every four      Yes
            assigned this              isolation and determination support              shall resolve or    hours until
            severity level if (i)      on an as needed basis until a                    provide             the ticket
            the majority of users      workaround is identified.                        workarounds         first reaches
            at the applicable size                                                      for 98% of all      Temp Tix,
            are adversely              Perot Systems shall implement a                  problems assigned   Resolved or
            affected, (ii) the         workarounds immediately after it is              this Severity       Closed
            problem has high           tested as provided in the Management             Level within 24     status.
            visibility, and (iii) a    Procedures Manual. Perot Systems                 hours.
            work around is             shall implement hardware and
            available, but the         software upgrades implementing more
            performance of the         thorough resolutions during the
            applicable System is       first available maintenance window
            degraded or the            after testing of such upgrades is
            functionality of the       completed.
            applicable System is
            materially limited.        CalPX shall provide support to assist
                                       in problem isolation and determination
            Example: A router          activities and to test the workaround.
            is down, however,
            traffic is rerouted
            with degraded
            performance.
- ----------------------------------------------------------------------------------------------------------------------------------
03          A problem shall be         Perot Systems shall provide problem              Perot Systems       Twice           No
            assigned this              isolation and determination support              shall resolve or    weekly until
            severity level if (i) a    during Normal Business Hours.                    provide             the ticket
            small percentage of                                                         workarounds         first reaches
            users at the               Perot Systems shall implement workarounds        for 98% of all      Temp Fix,
            applicable site are        and hardware and software upgrades during        problems            Resolved or
            adversely affected,        the first available maintenance window           assigned this       Closed
            and (ii) the problem       after testing of is completed.                   Severity Level      status.
            has limited visibility.                                                     within five
                                       CalPX shall test fixes.                          business days.
            Example: A user is
            unable to establish
            an application
            session from his/her
            machine.
- ----------------------------------------------------------------------------------------------------------------------------------
</Table>

                             Schedule 3.3 - Page 5

<Table>
<Caption>
- ----------------------------------------------------------------------------------------------------------------------------------
SEVERITY            DEFINITION              SUPPORT                                     SERVICE LEVEL       STATUS        REPORT
LEVEL                                                                                                       UPDATE        REQUIRED
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                             
04          A problem shall be         Perot Systems shall provide problem isolation    Perot Systems       Weekly until    No
            assigned this              and determination support during Normal          shall resolve or    the ticket
            severity level if the      Business Hours.                                  provide             first reaches
            affected System can                                                         workarounds         Temp Fix,
            be operated without        Perot Systems shall implement workarounds        for 98% of all      Resolved or
            significant                and hardware and software upgrades during        problems            Closed
            limitations on             the first available maintenance window           assigned this       status.
            performance or             after testing is completed.                      Severity Level
            functionality using a                                                       within five
            workaround.                CalPX shall test all fixes.                      business days.

            Example: A printer
            is not working
            however, users can
            re-route jobs to
            another printer.
- ----------------------------------------------------------------------------------------------------------------------------------
05          A problem shall be         Perot Systems shall provide problem isolation    Perot Systems       Twice           No
            assigned this              and determination support during Normal          shall resolve or    monthly
            Severity Level if          Business Hours.                                  provide             until the
            neither the user nor                                                        workarounds         ticket first
            operation of the           Perot Systems shall implement workarounds        for 98% of all      reaches
            applicable System is       and hardware and software upgrades during        problems            Temp Fix,
            materially adversely       the first available maintenance window           assigned this       Resolved or
            affected.                  after testing is completed.                      Severity Level      Closed
                                                                                        within 10           status.
            Example: A PC              CalPX shall test all fixes.                      business days.
            connects duplicate
            sessions to one
            resource.
- ----------------------------------------------------------------------------------------------------------------------------------
</Table>


                             Schedule 3.3 - Page 6


                                  SCHEDULE 4.2
                                MANAGED SOFTWARE


Part A -- CalPX Proprietary Software
- ------------------------------------

           SOFTWARE PROGRAM                              VERSION

Admin Fee Calculator                                     4.5.2
Automatic UMCP Posting (DA & HA)                         n/a
Compliance (DA & HA) Powerbuilder Reports                2.65
Compliance Data Warehouse                                n/a
Credit Reports (security deposit)                        2.4.1
Invoice Parser                                           2.2
Metering System                                          1.2
PGE Post                                                 4.1
Post-Processor                                           5.2.1
PowerBase                                                1.15
Pre-Processor Plus                                       1.6.1
Real Time DA Loader (RTHABACK)                           7.0.0
Real Time HA Loader (RTHALOAD)                           9.4.0
Real Time Report/Data Entry (RTHAFRNT)                   8.1.8
Real Time NERC Scheduling Tagging (NERC)                 3.5.1
Settlements Reports                                      n/a
Trading Reports                                          1.34
Web DA Loader                                            4.6
Web HA Loader                                            4.7
Web (ST)                                                 1.15

Part B -- CalPX Vendor Software
- -------------------------------

              UTILITIES

Acrobat Reader                                           3.01
Acrobat Reader                                           3.0
ADP PC/Payroll for Windows                               2.52-01
ADP HR Perspective                                       2.5
AutoSys                                                  4.3
BAMTRAC System                                           2.6
BMC Patrol Agent                                         3.2.5
Business Objects                                         4.1.3
ClientPak for Windows NT                                 5.1


                             Schedule 4.2 - Page 1




Data Direct Connection OBDC Drivers                      3.10
Dbartisan                                                4.01
DB Tools Core Lib Win                                    2.2w
DEC Forms                                                2.2A
Dialer -- IBM Global Network                             4.18.4
Ditto Tools Driver for Windows NT                        3.51
Ditto Tools Driver for Windows NT                        4.0
English HP-UX CDE Runtime Environment                    B.10.20
English HP-UX CDE Runtime Environment                    B.10.20
Enterprise Administrator Domain License                  4.51.00
Enterprise Administrator User License
Enterprise Cluster Master Toolkit                        A.10.11
Extension Software Patch Bundle                          B.10.20.38
Extension Software Patch Bundle                          B.10.20.33
Extension Software Patch Bundle                          B.10.20.33
Fast Forward                                             3.0
Fasttrack Server                                         B.01.00.00
Fasttrack Server                                         B.01.00.00
Fibre Channel Mass Storage Driver                        B.10.20.30
Fibre Channel Mass Storage Driver                        B.10.20.30
GDB                                                      4.17
HP aC++ Compiler S800                                    A.01.07.01
100BT/9000 EISA                                          B.10.20.01
HP GlancePlus/UX for s800 10.20                          B.10.20.72
HP Mpower//Web for Series 700 - E                        B.10.20.03
HP OnLineJFS (Advanced VxFS)                             B.10.20
HP-PB 100 Base-T/9000                                    B.10.20.06
HP-PB 100 Base-T/9000                                    B.10.20.02
HP-PB 100 Base-T/9000                                    B.10.20.09
HP-UX Media Kit                                          B10.20
HP-UX 10.20 Hardware Extensions                          B.10.20.HWE
HP-UX 8-User Licensee                                    B.10.20
HP-UX Installation Utilities (Ignite-UX-S800-10.20       A.1.51
HPUX Installation Utilities for Installing 10.20         A.1.51
HPUX 10.0 Support Tools Bundle                           B.10.20.08
HPUX 10.0 Support Tools Bundle                           B.10.20.08.04
HP-UX Core OS Year 2000 Patch Bundle                     B.10.20.A0720
HP_UX Core OS Year 2000 Patch Bundle                     B.10.20.A0720
HummingBird (Exceed/Xpress, Xpress/Host                  1.6 rel 4.25
Hyena                                                    1.76
Internet Information Server                              3.0
Internet Information Server                              2.0


                             Schedule 4.2 - Page 2


Logic Works ER win/ERX                                   3.0
Logic Works ER win/ERX                                   3.5.1
Lotus Domino Fax Server Pspt Media Pack                  4.5
Lotus Domino Fax Server Win NT                           4.5
MC/Service Guard                                         A.10.10
MC/Service Guard                                         A.10.10
MCSG 10.10 Patches                                       A.1.0
Microsoft SMS Client Access License                      server 1.2
Microsoft Systems Management Server                      1.2
Microsoft TechNet Starter Kit Server                     N/A
Microsoft Telnet                                         4.0
Microsoft Telnet                                         4.4
Microsoft Internet Information Server                    3.0
Microsoft Index Server                                   2.0
Microsoft Transaction Server                             2.0
Microsoft Active Server Pages                            3.0
Microsoft Visual Source Safe                             6.0
MirrorDisk/UX                                            B.10.20
Money h++ Win                                            2/21w
MPWeb1.1 s700 reference bundle                           B.10.20.03
Multi Edits                                              7.11
Net BackUp (Windows NT server)                           3.2
Net Term                                                 4.2.5
Netviz                                                   2.5
NetWorker for HP-UX                                      5.1
NetWorker for Windows NT                                 5.1
Norton AntiVirus                                         4.0
Norton AntiVirus NT Server                               4.0
Norton AntiVirus NFR Promo                               4.0
Norton AntiVirus (Windows NT Server)                     4.0
Norton AntiVirus                                         5.0
ODBC                                                     3.1.0
Octopus HA+                                              3.0
Omni Page Limited Edition                                5.0
Palm Pilot Desktop                                       2.1
Patrol/WMS                                               3.2.05
Patrol/NT                                                3.2.06
PeopleSoft                                               7.5
PowerMart - Informatica                                  4.5.1
PSPT Media Pack Fax Server                               1.1
PSPT Media pack Notes NA/Lotus Pass                      4.5.2
Purify                                                   4.2
Quota Manager Standard Edition                           2.6.1A

                             Schedule 4.2 - Page 3



RDB                                                      6.1A
RTR                                                      3.1-D
Scan Wizard                                              2.35
Secure Server Certificate                                n/a
shmmax +Gb Patches                                       A.1.0
SPF/Source Edit                                          2.0
Sybase System 11 ODBC                                    3.0.28.22
TexBridge Pro 96                                         96
Tools h++ Win                                            7.07w
Trial HP Glance Plus/US Pak for s800 10.20               B.10.20.140
Trial HP Measure Ware Server Agent for s800 10.20        B.10.20.140
Trial HP PerfView for s800 10.20                         B.10.20.109
Trial HP GlancePlus/UX for s800 1                        B.10.20.95
WANDA Electronic Services System                         2.41
Win Zip                                                  6.3 (SR-)
WinZip Software License                                  6.3
WinZip                                                   6.3
XDB                                                      A.10.20
Xemacs                                                   20.4

                  PRODUCTIVITY TOOLS
Avery Wizard                                             1.10 MSW97
Business Wier Connect                                    1.3
Lotus Domino Upgrade Server                              4.6
Lotus Notes                                              4.5
Lotus Notes                                              4.6
Lotus SmartSuite 97                                      97
Microsoft Frontpage 97                                   97
Microsoft Frontpage 98                                   98
Microsoft Office 97 Standard Edition                     97
Microsoft Office 97 Pro Edition                          97
Microsoft Project 98                                     98
Microsoft Image Composser                                1.5
Microsoft Outlook                                        97
Microsoft Internet Explorer                              4.0
Microsoft ACCESS Professional Edition                    98
Microsoft Internet Explorer                              4.0
Netscape Communicator                                    4.0x
Netscape Communicator                                    4.1
Netscape Communicator                                    4.4
ORG Plus for windows                                     3.01
Remedy Actioin Request System                            3.2
SeaGate Crystal Reports (Stadard)                        6.0


                             Schedule 4.2 - Page 4






Visio Pro                                                4.0
Visio Pro                                                5.0
Visio Pro CD/Doc Set                                     5.0

         OPERATING SYSTEMS

ADSM Upgrade to AIX 3.1                                  3.1
AIX                                                      4.1.5
AIX                                                      4.2
AIX                                                      4.3
HP UX                                                    B.10.20
Microsoft Windows NT Server                              4.0
Microsoft NT Workstation                                 4.0
Microsoft Windows NT Client Access License               4.0
Microsoft NT 4.0 Server w/service pk3                    4.0

         DEVELOPMENT TOOLS

ANSI C                                                   B.10.20.02
ANSI C                                                   B.10.20.07
C/C++                                                    5.6
GNU make                                                 3.7.6.1
GNU RCS/CVS                                              5.7
HP C Compiler                                            10.20
HP Linker/Assembler                                      10.30
HP-UX Developer's Kit for Java                           JDK 1.1.5
Microsoft Visual Basic                                   5.0
Microsoft Visual C++                                     5.0
Microsoft Visual J++                                     1.1
Microsoft Visual Basic                                   6.0
Microsoft Visual Basic Pro. Edition (SP 2&3)             5.0
Microsoft C++ Pro. Edition                               4.2
Microsoft Visual C++ Prol. Edition                       5.0
NetExpress                                               3.0
Object Cobol Developers Suite for UNIX                   4.1
Oracle Forms 4.5                                         4.5.7.1.6
Perl                                                     5.003_07
Picasso 2                                                2.5f
Power Builder Enterprise                                 6.0
Power Designer                                           6.1.0
Visual Component (First Impression)                      5.0
Visual Cafe for Java                                     2.5

               DBMS

Microsoft SQL Server                                     6.5, SP4
Oracle for windows NT                                    7.3
Oracle Enterprise Manger                                 7.3.3.0
SQL Plus                                                 3.3


                             Schedule 4.2 - Page 5



Sybase Adaptive Server                                   11.0
Sybase Administrative Tools                              3.0.0.1887
Sybase Adaptive Server                                   11.5
Sybase Adaptive Server Enterprise                        11.5
Sybase Adaptive Server                                   11.0.3.2 EBF
Sybase                                                   11.9.2
Sybase Open Client                                       11.1.1
Sybase CT Access Lib                                     3.0.1

                    COMMUNICATION TOOLS
Reflection X for windows NT                              7.0
Symantec PCAnywhere                                      8.0
UCX                                                      4.2

                      GRAPHICS TOOLS
Macro Media Flash 3                                      3.0

                      OTHER SOFTWARE
Data Trek EDI                                            3.01
D & B Desktop Solution for Windows                       6.0
DocuShare                                                2.0
Fidelity Web Station                                     1.0

OM Software
- -----------

Block Forward Secur Back Office                          4.3
Block Forward CIBIOS Trade Application                   3.0 - 6.7
Day Ahead Bidding & Scheduling                           5.1.16
Hour Ahead Bidding & Scheduling                          5.1.15
OM Net OMEX (network gateway)                            2.2.1
Settlement                                               5.1.7.1
Trade Application                                        5.1.14
Web (DA & HA)                                            15.5
Block Forward Click                                      3.01

Part C -- Perot Systems Software
- --------------------------------

Adjustment Bid Checker                                   1.0
Block Forward Report Generator                           1.0
Block Forward Invoice Run Generator                      1.0
Block Forward Clearing Data Retrieval                    1.0
Block Forward Ticker                                     1.0
BuckEye (ISODAB)                                         2.1
Day Ahead Adjustment Bid Checker                         1.0
Day Ahead Pit O Bull (ITOS)                              1.0
Day Ahead Schedule Difference Checker                    1.0
Hour Ahead Schedule Difference Checker                   1.0

                             Schedule 4.2 - Page 6



Manta Ray                                                1.0
Over Generation Mitigation                               1.0
Real Time Data Collection                                1.0
Real Time Reporting System                               1.0
Settlement Reporter (PXSR/TO Debit)                      1.1
Zonal Price Calculators (DA & HA)                        1.1.9
Zonal Price Checker (DA & HA)                            1.0
Shared Resource Trading & Scheduling (Shark)             1.0



                             Schedule 4.2 - Page 7



                                  SCHEDULE 4.4
                               CLIENT TECHNOLOGY

MANAGED EQUIPMENT (TENTATIVE)
<Table>
<Caption>
                                                                                                  WHO      WHO
                                                               OPERATING                          OWNS   SUPPORTS     FALLOVER
SERVER                               HARDWARE                   SYSTEM     CPUS   RAM     DISK     IT       IT      CAPABILITIES
- ------                               --------                  ---------   ----   ----   ------   ----   --------   ------------
                                                                                         
PRODUCTION
ALHDEV171                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      none
ADHEV172                         HP LPR             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      none
ADHPAP107                        Digital Prioris    MX6200     NTS4 SP4+     1                     PX       PX      non
ALHPAP108                        Digital Prioris    MX6200     NTS4 SP4+     1                     PX       PX      none
ALHPAP110                        Digital Prioris    MX6200     NTS4 PS4+     1                     PX       PX      none
ALHPAP111                        Digital Prioris    MX6200     NTS4 SP4+     1                     PX       PX      none
ALHPAP113                        HP Vectra          D4841      NTS4 SP4+     1                     PX       PX      none
ALHPAP180                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP181
ALHPAP181                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP180
ALHPAP193                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G mir    PX       PX      none
ALHPAP194                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G mir    PX       PX      none
ALHPAP195                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G mir    PX       PX      none
ALHPAP199                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G mir    PX       PX      none
ALHPAP200                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP201
ALHPAP203                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP204
ALHPAP204                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP203
ALHPAP210                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP211
ALHPAP211                        HP LXr             8000       NTS4 SP4+     1           4G mir    PX       PX      ALHPAP210
ALHPAP7532                       HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      ALHPAP7533
ALHPAP7533                       HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      ALHPAP7532
ALHPAP97                                                       NTS4 SP4+     1                     PX       PX      none
ALHPAP98                                                       NTS4 SP4+     1                     PX       PX      none
ALHPSEC2                         HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      none
ALHPWEB10                        HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      none
ALHPWEB11                        IBM PC Server      704        NTS4 SP4+     1                     PX       PX      none
ALHPWEB13                        IBM PC Server      704        NTS4 SP4+     1                     PX       PX      none
ALHPWEB14                        IBM PC Server      704        NTS4 SP4+                           PX       PX      none
ALHPWEB17                        IBM PC Server      704        NTS4 SP4+     1                     PX       PX      none
ALHPWEB25                        IBM PC Server      704        NTS4 SP4+     1                     PX       PX      none
BFWDWEB1                         HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      BFWDWEB2
BFWDWEB2                         HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      BFWDWEB1
BFWDTWEB                         HP LPr             D6131A     NTS4 SP4+     1    64M    4G        PX       PX      none
CSIAPAPP2A                       IBM PC Server      704        NTS4 SP4+     1    128M            IBM      IBM      none
CSIAPAPP1A                       IBM PC Server      704        NTS4 SP4+     1    128M            IBM      IBM      none
CSIAPMAIL1A                      IBM PC Server      704        NTS4 SP4+                           PX       PX      none
IMSINTRA                                                       NTS4 SP4+     1                     PX       PX      none

<Caption>
                                                                                                                        DR
                                                                                 HELP     HW        OS        APP       HOT
SERVER                           DOMAIN   LOCATION            FUNCTION           DESK   SUPPORT   SUPPORT   SUPPORT    SITE
- ------                           ------   --------            --------           ----   -------   -------   -------   -------
                                                                                              
PRODUCTION
ALHDEV171                        PXPROD   Svr room   Test/Development             PX        HP       PX        PX
ADHEV172                         PXPROD   Svr room   Test/Development             PX        HP       PX        PX
ADHPAP107                        PXPROD   Svr room   MDAS ftp server #1           PX    Compaq       PX               Folsom
ALHPAP108                        PXPROD   Svr room   MDAS DB server #1            PX    Compaq       PX               Folsom
ALHPAP110                        PXPROD   Svr room   MDAS ftp server #2, Psoft    PX    Compaq       PX               Folsom
                                                      Apps
ALHPAP111                        PXPROD   Svr room   MDAS DB server #2            PX    Compaq       PX               Folsom
ALHPAP113                        PXPROD   Svr room   Settlement Util PRocessor    PX        HP       PX               Folsom
ALHPAP180                        PXPROD   Svr room   BDC PXPROD, PEP+             PX        HP       PX        PX     Folsom
ALHPAP181                        PXPROD   Svr room   BDC PXPROD, Settlement       PX        HP       PX        PX     Folsom
ALHPAP193                        PXPROD   Svr room   OM Gateway                   PX        HP       PX        PX     Folsom
ALHPAP194                        PXPROD   Svr room   OM Gateway                   PX        HP       PS        PX     Folsom
ALHPAP195                        PXPROD   Svr room   OM Gateway                   PX        HP       PX        PX     Folsom
ALHPAP199                        PXPROD   Svr room   WLBS Web Server              PX        HP       PX        PX
ALHPAP200                        PXPROD   Svr room   BDC PXPROD, Buckeye          PX        HP       PX        PX     Folsom
ALHPAP201                        PXPROD   Svr room   BDC PXPROD, Peoplesoft       PX        HP       PX        PX     Folsom
ALHPAP203                        PXPROD   Svr room   BDC PXPROD, SQL7             PX        HP       PX        PX     Folsom
ALHPAP204                        PXPROD   Svr room   PDC PXPROD                   PX        HP       PX        PX     Folsom
ALHPAP210                        PXPROD   Svr room   PDC PXPROD, PXMDAS           PX        HP       PX        PX     Folsom
ALHPAP211                        PXPROD   Svr room   BDC PXPROD, Intranet         PX        HP       PX        PX     Folsom
ALHPAP7532                       PXPROD   Svr room   OM Gateway                   PX        HP       PX        PX     Folsom
ALHPAP7533                       PXPROD   Svr room   WLBS Web Server              PX        HP       PX        PX
ALHPAP97                         PXPROD   Svr room   Buckeye & Book               PX                 PX
ALHPAP98                         PXPROD   Svr room   PeopleSoft File Share        PX                 PX
ALHPSEC2                         PXOA1    Svr room   PDC in DMZ                   PX        PX       PX
ALHPWEB10                        PXPROD   Svr room   A-Frame DB Server            PX        HP       PX               Folsom
ALHPWEB11                        PXPROD   Svr room   Ext PRMS Web Server          PX       IBM       PX
ALHPWEB13                        PXPROD   Svr room   DayAhead MCP Server          PX       IBM       PX
ALHPWEB14                        PXPROD   Svr room   HourAhead MCP Server         PX       IBM       PX
ALHPWEB17                        PXPROD   Svr room   Settlements Web Server       PX       IBM       PX
ALHPWEB25                        PXPROD   Svr room   Powerbase                    PX       IBM       PX
BFWDWEB1                         PXPROD   Svr room   BF Prod Web Server           PX        HP       PX        PX
BFWDWEB2                         PXPROD   Svr room   BF Prod Web Server           PX        HP       PX        PX
BFWDTWEB                         PXPROD   Svr room   BF Test Web Server           PS        HP       PX        PX
CSIAPAPP2A                       PXOA     Svr room   PDC PXOA1                   IBM       IBM      IBM       IBM     Folsom
CSIAPAPP1A                       PXOA     Svr room   BDC PXOA1                   IBM       IBM      IBM       IBM     Folsom
CSIAPMAIL1A                      PXPROD   Svr room   CALPX web site              IBM       IBM       PX
IMSINTRA                         PXPROD   Svr room   Int PRMS Web Server          PX       IBM       PX               Folsom
</Table>

<Table>
<Caption>
                                                                                           WHO      WHO
                                                    OPERATING                              OWNS   SUPPORTS     FALLOVER
SERVER                            HARDWARE           SYSTEM          CPUS  RAM    DISK      IT       IT      CAPABILITIES
- ------                            --------          ---------        ----  ----  ------    ----   --------   ------------
                                                                                     
ALHPAP1                      Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP2                      Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP3                      Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP28                     Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP33                     Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP27                     Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP52                     Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP133                    Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP134                    Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP53                     Digital PWS 200i       NTS4 SP4+          1   64M    4.3G      PX       PX        none
ALHPAP88                     Digital Priori MX6200  NTS4 SP4+          1                                       none
ALHPAP150                                           NTS4 SP4+          1                    PX       PX        none
ALHPAP80                                            NTS4 SP4+          1                    PX       PX        none
ALHPAP137                                           NTS4 SP4+          1                    PX       PX        none
ALHPAP142                                           NTS4 SP4+          1                    PX       PX        none
ALHPAP138                                           NTS4 SP4+          1                    PX       PX        none
ALHPWEB12                                           NTS4 SP4+          1                    PX       PX        none
ALHPAP80                     Digital Priori MX6200  NTS4 SP4+          1                    PX       PX        none
ALHPAP74                                            NTS4 SP4+          1                    PX       PX        none
ALHPAP171                    HP LPr  D6131A         NTS4 SP4+          1   64M    4G        PX       PX        ALHPAP172
ALHPAP172                    HP LPr  D6131A         NTS4 SP4+          1   64M    4G        PX       PX        ALHPAP171
ALHPAP109                    HP Netserv 6/200       NTS4 SP4+          1                    PX       PX        none

<Caption>

                                                                                 HELP     HW        OS        APP
SERVER                           DOMAIN   LOCATION            FUNCTION           DESK   SUPPORT   SUPPORT   SUPPORT
- ------                           ------   --------            --------           ----   -------   -------   -------
                                                                                       
ALHPAP1                          PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP2                          PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP3                          PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP28                         PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP33                         PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP27                         PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP52                         PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP133                        PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP134                        PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP53                         PX?      Svr room       OMN Gateway              PX    Compaq      PX         OM
ALHPAP88                         PX?      Svr room       PeopleSoft Apps          PX    Compaq      PX         OM
ALHPAP150                        PX?      Svr room                                PX                PX
ALHPAP80                         PX?      Svr room                                PX                PX
ALHPAP137                        PX?      Svr room                                PX                PX
ALHPAP142                        PX?      Svr room       PEP + Test               PX                PX
ALHPAP138                        PX?      Svr room                                PX                PX
ALHPWEB12                        PX?      Svr room                                PX                PX
ALHPAP80                         PX?      Svr room                                PX    Compaq      PX
ALHPAP74                         PX?      Svr room       MDAS Test                PX                PX
ALHPAP171                        PXDEV    Svr room       PDC PXDEV                PX    HP          PX         PX
ALHPAP172                        PXDEV    Svr room       BDC PXDEV                PX    HP          PX         PX
ALHPAP109                        PXPROD   Svr room       master/master db ser     PX    HP          PX
</Table>

ITSA-Final                    SCHEDULE 4.4 -- PAGE 2                   200000217




                        CALPX UNIX SYSTEM CONFIGURATION

ALHAMBRA, CA. UNIX SERVER INVENTORY (TENTATIVE)

<Table>
<Caption>
=========================================================================================
HOST NAME    OS LEVEL    HARDWARE       RAM      DISK              APPLICATIONS
                                        (GB)    STORAGE
=========================================================================================
                                             
Prodnol      HP-UX       HP9000       3.0       81.7 GB     Day Ahead & Hour Ahead
             10.20       Model K460                         Production

altnode      HP-UX       HP9000       3.0       12.28 GB    Day Ahead & Hour Ahead
             10.20       Model K460                         Secondary

settle       HP-UX       HP9000       4.2       22.0 GB     Settle Production
             10.20       Model K460                         Sysbase 11.0.3.3

Alhpap5      HP-UX       HP9000       2.7       85.36 GB    Settle Secondary
             10.20       Model K460

Pep1         HP-UX       HP9000       1.1       29.08 GB    PEP Plus, Sybase 11.9.2
             10.20       Model K460

psoft        HP-UX       HP9000       3.0       25.54 GB    PeopleSoft 7.5.2
             10.20       Model K460                         SyBase 11.9.2

Setest1      HP-UX       HP9000       3.8       57.32 GB    SE Test Server, Sybase
             10.20       Model K460                         11.0.3

Settest2     HP-UX       HP9000       1.9       40.94 GB    SE Test Server, Sybase
             10.20       Model K460                         11.0.3

Alhpbk51     HP-UX       HP9000       2.0       213.64 GB   Data Warehouse,
             10.20       Model K460                         Development and test,
                                                            Sybase 11.5.1

Alhpap8      HP-UX       HP9000       1.5       24.38 GB    Admin. Server, PeopleSoft
             10.20       Model K260                         Production, Sybase 11.0.3

Alhpap34     HP-UX       HP9000       512 MB    32.38 GB    Admin. Server, PeopleSoft
             10.20       Model K260                         Test and Development,
                                                            Sybase 11.0.3

Alhpap57     HP-UX       HP9000       3.0       137.24 GB   Historical Database, Test
             10.20       Model K460                         Psoft and Settlements, Sybase
                         EMC 7800               1.5 TB      Raid 0,1 mirrored
                         Jamaica                6 x 4GB
                         Jamaica                6 x 4GB
- -----------------------------------------------------------------------------------------
</Table>




                             Schedule 4.4 - Page 3


FOLSOM, CA, UNIX SERVER INVENTORY

<Table>
<Caption>
=========================================================================================
HOST NAME    OS LEVEL    HARDWARE       RAM      DISK              APPLICATIONS
                                        (GB)    STORAGE
=========================================================================================
                                             
FOLPAP87     HP-UX       HP9000       unknown   unknown     Sybase, Replication
             10.20       K460                               DA/HA/SE

FOLPA110     HP-UX       HP9000       unknown   unknown     Settlements
             10.20       K460

FOLPA108     HP-UX       HP9000       unknown   unknown     Not used.

Hostname     HP-UX       HP9000       unknown   unknown     Not used.
unknown      10.20       K260
                         EMC 7800               unknown
- -----------------------------------------------------------------------------------------
</Table>















                             Schedule 4.4 - Page 4

                                  SCHEDULE 4.5
                             REQUIRED IMPROVEMENTS

The following is a list of the Required Improvements and Perot Systems'
estimate of the number of Full-Time Equivalent PSC Personnel that will be
assigned to perform the Core Services, Application Development Services and
Business Consulting Services (the "Baseline") that will be necessary to
implement these Required Improvements.

1.  HP-UX Software Level Upgrade

    The HP-UX operating system for each Hewlett-Packard computer listed as
    Managed Equipment must be upgraded to the most current release.

    This upgrade is required to provide baseline, Year 2000 and 64-bit
    architectural support. This 64-bit version of the operating system supports
    larger file systems, which increases performance and enhances memory
    utilization. This task must also include installation of patches, both Y2K
    related and Application driven patches. Perot Systems shall manage HP to
    complete this Required Improvement under the current agreement between
    CalPX and HP.

    Estimated PSC Personnel Requirements above Baseline: None

2.  Enterprise System Management (ESM) Identification/Implementation

    An Enterprise System Management product must be identified and implemented.

    Perot Systems shall target the evaluation of systems management products
    and tools for use by the Computer Operations team to efficiently monitor
    and manage the multiple platforms used in the CalPX environment. Once
    product selection is completed, an implementation of the targeted
    environment must be planned and executed. This includes customization and
    integration of the Problem management and Change Management packages.

    Estimated PSC Personnel Requirements above Baseline: 9 FTE-months

3.  NT Service Pack

    All Managed Equipment running the Microsoft Windows NT operating system
    must be upgraded to NT Service Pack 6A.

    The current NT environment is at the NT Service Pack 4 plus hot fixes. A
    project to implement the new service into each cluster discretely must
    occur to resolve known problems with memory leaks and other technical fixes.

    Estimated PSC Personnel Requirements above Baseline: None


                             Schedule 4.5 - Page 1


4.  Remedy Customization/Implementation/Training

    The Remedy(TM) software that Perot Systems uses for problem and change
    management must be customized to support the CalPX's specific requirements.
    In addition, the escalation process used to support the CalPX's business
    must be automated.

    This process shall improve the notification and response of technicians
    when warning or alerts are issued by Systems.

    After the Remedy(TM) software is customized, it must be implemented in the
    CalPX's environment to provide access to all authorized PSC Personnel,
    including Transitioned Employees, and all authorized CalPX personnel. Each
    of the authorized users must be trained to use this software.

    This process shall improve the notification and response of technicians
    when warning or alerts are issued by Systems.

    Estimated PSC Personnel Requirements above Baseline: None

5.  HP Firmware Updates

    All Hewlett-Packard servers and system components must be inventoried to
    determine its current firmware version and, if necessary, upgraded to the
    most current firmware version that is commercially available.

    Upgrading to the latest firmware versions may resolve issues such as data
    corruption, missing interrupts and lost data chains. In addition, these
    upgrades should increase reliability and availability. Perot Systems shall
    manage HP to complete this Required Improvement under the current agreement
    between CalPX and HP.

    Estimated PSC Personnel Requirements above Baseline: None

6.  Review Backup and Archive Strategies

    CalPX backup and archive strategies must be reviewed and updated, if
    necessary.

    Perot Systems shall review the CalPX's requirements for application and
    data backup and archival. The methods and tools currently being used to
    meet these requirements must be reviewed for compliance.

    As appropriate, Perot Systems shall specify changes in these requirements,
    methods and tools to manage these requirements more effectively across the
    CalPX's Systems. Perot Systems shall review with CalPX the work that must
    be done to establish the most appropriate frequency and methodology to meet
    CalPX's data recovery requirements.


                             Schedule 4.5 - Page 2

    Estimated PSC Personnel Requirements above Baseline: None

 7. Implement Program/Project Management Office

    CalPX must implement and use the Program Office/Project Management
    processes and procedures to effectively manage programs and projects.

    Estimated PSC Personnel Requirements above Baseline: None

 8. Implement Change Management Methodology

    CalPX must implement the Change Control Procedure for all proposed Changes.
    CalPX must also implement the Change Control Board and the IT Steering
    Committee.

    Estimated PSC Personnel Requirements above Baseline: None

 9. Add CalPX IT Operations to Automated Call Distributor (ACD)

    The Automated Call Distributor (ACD) system used by Perot Systems must be
    used to manage the help desk.

    This system must be implemented to provide the capability to efficiently
    distribute calls throughout the enterprise and report the call volumes,
    service time, queue time, and average talk time. These metrics are critical
    when forecasting future operational service levels and requirements. As
    part of implementing this Improvement, Perot Systems shall manage CalPX
    vendor to implement the required improvement.

    Estimated PSC Personnel Requirements above Baseline: None

10. Plan and Implement Consolidated Test Environment

    The physical architecture that shall support the testing environment and
    the required software and tools necessary to manage production promotion
    from one environment to the next (i.e. development to test, test to model
    office and model office to production) must be planned, designed and
    implemented. Also included in this Required Improvement is  planning and
    implementation of configuration management/release procedures and the
    required tools. Test procedures that describe how applications are to be
    tested and promoted through the testing environments, server code, database
    objects, CalPX based applications and the tracking of application source
    code must also be developed and implemented.

    Estimated PSC Personnel Requirements above Baseline: 16FTE-months.

                             Schedule 4.5 - Page 3



11. Commercial Disaster Recovery Hot Site

    Procedures and systems to be followed to prevent avoidable System failures
    and to minimize the adverse effects of unavoidable System failures and
    Disaster must be planned, designed and implemented. Disaster Recovery Plans
    must be established and implemented via a Commercial Disaster Recovery
    Vendor/Site or otherwise. Test Plans must be established, and tests
    periodically completed.

    Estimated PSC Personnel Requirements above Baseline: 12 FTE-months.

12. Sybase SQL Server Software Level Upgrade -- (before Titan goes into
    production)

    The Sybase SQL Server software installed on each of the servers listed in
    Schedule 4.1 must be upgraded to the most current version.

    This upgrade is required to ensure continued vendor product support,
    improve performance through enhanced concurrency and tuning options, and
    simplify administration by standardizing on a single product release.

    Estimated PSC Personnel Requirements above Baseline: 14 FTE-months.

13. IT Security

    Develop and implement an IT security plan which shall address the following
    issues:

    o  End user security awareness

    o  Physical security issues

    o  UserID security issues

    o  Password security issues

    o  Policies -- Recommendations for an audit log structure

    o  Enterprise Security Software -- Information of currently available 3rd
       party security management software.

    o  Topology -- A mapping of systems at CalPX.

    o  Role Based Access -- Data received in other areas can be used for a high
       level (not detailed) role based access matrix.

Estimated PSC Personnel Requirements above Baseline: 30 FTE-months.


                             Schedule 4.5 - Page 4




                                  SCHEDULE 5.1

                                SERVICE CHARGES

A.  FEES FOR BASE SERVICES.

The rates set forth below shall be adjusted annually in accordance with Section
5.6 of the Agreement.

Service Fee for Core Services:

Perot Systems shall calculate a monthly services fee ("CALCULATED SERVICES
FEE") by multiplying (i) the actual number of person-hours of Core Services
performed by PSC Personnel during such month, divided by 139 (to determine the
number of Full-Time Equivalent PSC Personnel), by (ii) the Core Services Rate.

B.  BASELINE BUDGET FOR CORE SERVICES

Months one to 12 inclusive:                           $733,100 / month
Months 13 to 36 inclusive:                            $749,250 / month

The Core Services Rate for PSC Personnel is $16,650.00 per month for each
Full-Time Equivalent.

C.  FEES FOR IT PROCUREMENT SERVICES

As consideration for the IT Procurement Services, CalPX shall pay Perot Systems
an administrative fee equal to 6.0% of the actual third-party cost, including
the cost of freight, insurance, taxes or other similar charges, of purchasing,
leasing or licensing any equivalent, software or services.

D.  FEES FOR APPLICATIONS DEVELOPMENT SERVICES AND BUSINESS CONSULTING SERVICES

As consideration for the Application Development Services, CalPX shall pay
Perot Systems a monthly services fee ("CALCULATED SERVICES FEE") equal to the
sum of (A) the minimum monthly fee set forth below for the core number of
Full-Time Equivalent PSC Personnel available to perform Applications
Development Services, and (B) the amount, if positive, determined on a time and
materials basis by multiplying (i) the actual number of person-hours of
Applications Development performed by PSC Personnel, divided by 139 (to
determine the number of Full-Time Equivalent PSC Personnel), less the core
number of the Full-Time Equivalent PSC Personnel made available by Perot
Systems to provide Applications Development Services (to determine the number
of Full-Time Equivalent PSC Personnel above the core Resources available to
perform Applications Development Services), by (ii) the applicable rate from
the table set forth below.

                             Schedule 5.1 - Page 1

As consideration for the Business Consulting Services, CAlPX shall pay Perot
Systems a monthly services for ("CALCULATED SERVICES FEE") equal to the sum of
(A) the minimum monthly fee set forth below for the core number of Full-Time
Equivalent PSC Personnel available to perform Business Consulting Services, and
(B) the amount, if positive, determined on a time and materials basis by
multiplying (i) the actual number of person-hours of Business Consulting
performed by PSC Personnel, divided by 139 (to determine the number of
Full-Time Equivalent PSC Personnel), less the core number of the Full-Time
Equivalent PSC Personnel made available by Perot Systems to provide Business
Consulting Services (to determine the number of Full-Time Equivalent PSC
Personnel above the core Resources available to perform Business Consulting
Services), by (ii) the applicable rate from the table set forth below.

The core number of Full-Time Equivalent PSC Personnel that Perot Systems
shall make available to perform (i) Applications Development Services shall be
(a) 11 Full-Time Equivalent PSC Personnel during the first of the Term,
(b) seven Full-Time Equivalent PSC Personnel during the first eight months of
the second and third years of the Term, and (c) eight Full-Time Equivalent PSC
Personnel during the ninth through twelfth months of the second and third years
of the Term, and (ii) Business Consulting Services shall be two and one half
(2.5) Full-Time Equivalent PSC Personnel for the first 36 months of the Term.
If CalPX requires or uses more services, the rates shall be as set forth based
on the rate schedule below.

E.  RATES FOR APPLICATIONS DEVELOPMENT SERVICES

Minimum Monthly Fee for core Resources:
Month one to 12 inclusive:                                    $250,000 / month
Month 13 to 20 inclusive:                                     $159,000 / month
Month 21 to 24 inclusive:                                     $181,830 / month
Month 25 to 32 inclusive:                                     $159,090 / month
Month 33 to 36 inclusive:                                     $181,830 / month

Monthly Rate for additional Full-Time Equivalent PSC Personnel to Perform
Applications Development Services

    Additional Resources committed for minimum of 12 Months:   $22,730 / month
    Additional Resources committed for less than 12 Months:    $27,040 / month

F.  RATES FOR BUSINESS CONSULTING SERVICES

Minimum Monthly Fee for core Resources:
Month one to 36 inclusive:                         $59,660 / month

Monthly Rate for additional Full-Time Equivalent PSC Personnel to Perform
Business Consulting Services (except for any Full-Time Equivalent Personnel who
have the positions listed in Schedule 5.2).


                             Schedule 5.1 - Page 2


     Additional Resources committed for minimum of 12 Months:      $29,200/month
     Additional Resources committed for less than 12 Months:       $32,050/month

G.   CHANGES IN BASELINE BUDGET

All changes, except as set forth in the Agreement, in Baseline Budget shall be
mutually agreed to by both parties in accordance with the Change Control
Procedure.

The Baseline Budget for the Core Services has been agreed to by Perot Systems
based on a number of key assumptions, including those listed below.  If any of
the key assumptions are incorrect, CalPX and Perot Systems shall negotiate an
appropriate adjustment to the Baseline Budget for the Core Services as soon as
practical after determining that the assumptions are incorrect.

   o  CalPX shall introduce into production the Titan Application (CalPX
      settlements calculation application) on or before May 1,2000.

   o  CalPX shall not require support for parallel operation of the Titan
      Application and its existing suite of settlements applications for more
      than 2 months.

   o  CalPX shall retire PEP+ and POP applications on or before July 1, 2000.


                             Schedule 5.1 - Page 3



                                  SCHEDULE 5.2

                    PEROT SYSTEMS STANDARD COMMERCIAL RATES

Perot Systems standard commercial rates as of the Effective Date are set forth
below.
<Table>
<Caption>
- --------------------------------------------------------------------------------
CONSULTING                       HOURLY         DAILY               MONTHS
                                                        
Senior Advisor                    N/A          $7,000.00         $152,000.00
Principal                         N/A          $5,000.00         $108,500.00
Senior Engagement Manager         N/A          $4,000.00         $ 87,000.00
Senior Consultant                 N/A          $3,000.00         $ 65,000.00
- --------------------------------------------------------------------------------
</Table>

All rates are for services only. Travel and other out-of-pocket expenses are
not included.







                             Schedule 5.2 - Page 1


                                  SCHEDULE 5.4

                       CALPX EXPENSE REIMBURSEMENT POLICY

It is the policy of the California Power Exchange Corporation to reimburse its
employees for necessary and reasonable travel and other actual expenses
incurred in the performance of their duties or assignments. Employees are
expected to exercise reasonable and prudent judgement in incurring such
expenses. This policy outlines broadly the types of such expenses, which are
acceptable for reimbursement and the documentation and approval requirements.
The department officers and directors are responsible for managing and
approving expense reimbursements. In addition, they will determine which
expenses are reasonable or unreasonable given the situation and, in conformance
with this policy, will approve all expense reports. Unreasonable expenses will
not be reimbursed. The Chief Financial Officer and Controller may challenge
expense requests approved by officers and directors. The Chief Financial
Officer and Controller will have final approval authority regarding the
reimbursement of the expense. It is expected that employees will submit these
expenses for reimbursement on a timely basis. Reimbursement should be requested
when the amount is in excess of $100.00 and not more than 45 days after the
expenses are incurred. Expense requests must be properly documented as to the
nature and business purpose of the expenses.


                                   PROCEDURES

DOCUMENTATION

All elements of the expense report must be completed with original invoices or
receipts attached. The only exception to the original invoice requirement is
for airline tickets booked through the Internet (Southwest Airlines only),
where a print out of the download from the Internet will be accepted as an
original invoice. This print out must include the name of the traveler, the
dates of travel, the flight numbers, the departure and destination cities, and
the amount paid. Documentation is required for each expense item in excess of
$35.00. For expenses in excess of $35.00 that are not supported by a receipt, a
memo to the Chief Financial Officer and Controller should be attached
explaining why required procedures were not followed. Reimbursement of these
expenses will be at discretion of the Chief Financial Officer and Controller.
Each individual expense must include the business purpose of the item. An
appropriate business purpose will not be assumed before final approval. The
business purpose for the expenses can be grouped and one explanation provided
for all expenses on the report. The employee must sign the expense report
acknowledging the validity of the charges and supporting the business reason
for the request.

APPROVALS


                             Schedule 5.4 - Page 1


Employees may be required to complete a Travel Authorization form prior to
leaving on a business trip. Use of this document is subject to the discretion of
department senior management. Employees are required to adhere to Travel
Authorization procedures established at the department level. No one is allowed
to approve his or her own expenses and must have their reimbursement request
approved by their supervisor. Expense reports may not be approved by a peer of
the employee's supervisor. The Audit Committee of the Governing Board will
direct the Internal Auditor to review the CEO's expense reports.

TYPES OF EXPENSES

TRANSPORTATION

        AIR TRAVEL

    Employees are expected to use commercial air travel. Use of charter
    aircraft or personal aircraft is not allowed to conduct California Power
    Exchange business. Airfare may be booked through a travel agent, the
    Internet, or directly with the Airline. All airfare must be charged to
    either the company American Express or Diners Club card. Employees are
    responsible for paying these charges to the credit card company. Employees
    should always strive to travel at the lowest available fare. If the lowest
    available fare is not utilized, the employee must indicate the reason on
    the expense report. If coach fare is not available, an explanation must be
    documented on the expense report form. Employees may fly business class for
    scheduled flights more than three hours in duration. For scheduled flights
    less than three hours in duration, employees are expected to book coach
    level fares. The company will not reimburse employees for flying first
    class. Employees are not allowed to purchase upgradable coach fares so that
    first class upgrade certificates can be used. In addition, the CalPX will
    not reimburse employees for the cost of first class upgrade certificates.
    If an employee chooses to upgrade to first class travel, only the lowest
    available coach fare will be reimbursed. Travel should not be scheduled to
    earn frequent flyer awards at the detriment of the California Power
    Exchange. Frequent flyer awards are the property of the employees. Expenses
    will only be reimbursed after travel is completed. Receipts showing the
    total price must be included for reimbursement.

        CAR RENTAL

    Car rental should be limited to use when alternative transportation such as
    taxi or shuttles is not available or not economical. Receipts showing the
    total price must be included for reimbursement. Car rental reservations may
    be made either through a travel agent, the Internet, or directly with the
    rental car company. Compact or intermediate cars should be rented based on
    the


                             Schedule 5.4 - Page 2

number of employees traveling. Employees should make good judgements as to the
gasoline options offered with the rental car.

The California Power Exchange carries liability and vehicle damage insurance
that protects the CalPX when employees rent vehicles while on CalPX Business.
Employees must indicate on the rental form the California Power Exchange's name
to put this insurance into effect. The CalPX will not reimburse employees for
insurance from rental agencies, or credit cards offers of other agencies.
Employees should decline offered by rental agencies unless they choose to
purchase the insurance without reimbursement.  In the event a California Power
Exchange employee has a claim for damage to a vehicle while on CalPX business,
the employee must contact the Chief Financial Officer and Controller immediately
so that claims may be processed with the CalPX carrier. IF an employee rents a
vehicle while on California Power Exchange business, and extends its time at
either the beginning or end of the trip for personal reasons, the CalPX
insurance only covers the time related to CalPX business. Employees are
responsible for the cost of vehicle insurance while using it for personal use.

   BUSINESS USE OF PERSONAL VEHICLES

   When it is necessary for employees to use their personal vehicle for
   business purposes, reimbursement of mileage will be made in lieu of other
   vehicle charges such as gas and oil, insurance, financing costs of other
   wear and tear. The currently approved IRS reimbursement rate will be used.
   No reimbursement will be made for employees' normal commuting to their
   assigned work location. Requests for reimbursement of business milage should
   reflect a reduction of normal commuting miles.

   PARKING, TOLLS AND OTHER COSTS

   Parking, taxi, shuttle, tolls, tips and other expenses in excess of $35.00
   must be supported by a receipt. Cost of parking fines of other driving
   citations will not be reimbursed.

LODGING

   AGGREGATIONS OF MULTIPLE DAYS STAY

   Employees may enter multiple days stay as one line on the report, provided
   the supporting documentation clearly shows the daily rate and taxes
   applicable.  The original receipt form the hotel or motel must be attached.
   Meals,tips, telephone, parking or other charges on the hotel of motel bill
   must be shown in the proper area of the expense report.


                             Schedule 5.4 - Page 3


     Movies, snacks, and mini-bar charges are not reimbursable. Reasonable tips
     to hotel personnel should be shown as other incidental expense.

MEALS
     EMPLOYEE MEALS

     Employees' expenses for meals are expected to be reasonable given the
     location. Expenses in excess of $35.00 per meal must have receipts showing
     the name of the establishment and the total amount of the meal including
     tip. Tips should be included in determining the $35.00 amount and be shown
     as part of the meal costs.

     BUSINESS MEALS

     These expenses must constitute an ordinary and necessary business expense.
     Expenditures should not be lavish or extravagant. Employees must document
     the business purpose of the meal, the name of the restaurant, and include
     the names, titles and the name of the company for all in attendance.

ENTERTAINMENT

     When it is necessary to entertain customers or other business associates
     of the California Power Exchange in connections with the conduct of
     business, documentation as to the nature of the entertainment,
     participants (by name, title and company name), location, and business
     purpose is required.

NON-REIMBURSABLE EXPENSES

     In general, expenses of a personal nature, that are unreasonable or
     excessive, and that not specifically related to the conduct of the
     business activities of the California Power Exchange are not reimbursable.
     Examples of specifically excluded costs are spousal travel expenses,
     excessive alcoholic beverages, flowers, other gifts for employees, credit
     card fees or interest charges, memberships in travel clubs or other
     airport services. Employee meals, other than for out of town travel, are
     not reimbursable. This exclusion includes employee working meals which
     will not be reimbursed. When employees are having a meal, the most senior
     employee, officer or director should report the expense so that no one
     approving expenses for reimbursement would be approving a meal in which
     they participated.


                             Schedule 5.4 - Page 4


                                  SCHEDULE 7.3

        SUPPLEMENTARY PROCEDURES FOR CALIFORNIA POWER EXCHANGE DISPUTES

1.     APPLICABILITY

       (a)  The Supplementary Procedures for California Power Exchange
    Disputes (hereinafter, "the Procedures") shall apply to all cases
    administered by the American Arbitration Association (hereinafter, "AAA")
    under its Commercial Mediation Rules and its Commercial Arbitration Rules
    in which a claim is made arising out of the Power Exchange Operating
    Agreement and Tariff (hereinafter, "the Tariff") filed with the Federal
    Energy Regulatory Commission (hereinafter, "FERC"). The Procedures are
    designed to complement the Commercial Mediation Rules and the Commercial
    Arbitration Rules; to the extent that there is any variance between those
    rules and the Procedures, the Procedures shall control.

       (b)  The parties to any arbitration proceeding that is to be subject to
    the Procedures may, by written consent of all parties, agree to eliminate,
    modify or alter any of the Procedures, and, in such case, the Procedures as
    so modified or altered shall apply to that particular case.

       (c)  Except as limited below or otherwise as limited by law (including
    the rights of any party to file a complaint with FERC under the relevant
    provisions of the Federal Power Act (hereinafter, "FPA"), the Procedures
    shall apply to all disputes between parties which arise under the Tariff.
    The Procedures shall not apply:

            (1)  where the decision of the California Power Exchange
    (hereinafter, "PX") is stated in the provisions of the Tariff to be final:

            (2)  where the PX is bound, as a Scheduling Coordinator under the
    California Independent System Operator Agreement and Tariff, by a final
    determination of the California Independent System Operator ("ISO"), in
    which case the final determination of the ISO shall be binding on all PX
    Participants;

            (3)  to disputes arising under existing contracts which pre-date
    the creation of the PX, except as the disputing parties may otherwise
    agree; or

            (4)  to disputes as to whether rates and charges set forth in the
    PX Tariff are just and reasonable under the FPA.

       (d)  If a party to a dispute is a government agency, application of the
    dispute resolution process procedures shall be subject to any limitations
    imposed on the agency by law, including, but not limited to, the authority
    of the agency to effect a


                             Schedule 7.3 - Page 1


     remedy. If the governmental agency is a federal entity, the dispute
     resolution process shall not apply to disputes involving issues arising
     under the United States Constitution.

          (e) Where the court having jurisdiction so determines, use of the
     dispute resolution process shall not be a condition precedent to court
     action for injunctive relief nor shall the provision of the California Code
     of Civil Procedure Section 1281 4 seq. apply to such court actions.

2.   NEGOTIATION

          The PX and PX Participants who may be parties to a dispute shall make
     good-faith efforts to negotiate and resolve any dispute between them
     arising under the PX Tariff prior to invoking mediation or arbitration.
     Each party shall designate in writing an individual with authority to
     negotiate the matter in dispute in such negotiations.

3.   STATEMENT OF CLAIM

          (a) In the event a dispute is not resolved through good-faith
     negotiations, any one of the parties may submit in writing a statement of
     claim to the AAA, to each other disputing party that was involved in good
     faith negotiations under Section 2 and to the PX. Such submission shall
     constitute commencement of the dispute resolution process.

          (b) The statement of claim shall set forth in reasonable detail (i)
     each claim, (ii) the relief sought, including the proposed award, if
     applicable, (iii) a summary of the grounds for such relief and the basis
     for each claim, (iv) the parties to the dispute, (v) the individuals having
     knowledge of each claim and (vi) a summary of the claim suitable for
     publication by the PX.

          (c) The other disputing parties identified in the statement of claim
     prepared pursuant to Section 3(a) shall similarly submit in writing to the
     AAA their respective statement of claim (which may be a response) and a
     summary of their claim (or response) suitable for publication by the PX
     within fourteen (14) days of the submission of the initial statement of
     claim or such longer time period as the AAA may permit following
     application by the responding party.

          (d) Any responding party wishing to submit a counterclaim must do so
     in writing and include such counterclaim in their responsive statement of
     claim.

          (e) The PX in the PX newsletter, electronic bulletin board, or any
     other method adopted by the PX ADR Committee, shall, within fourteen (14)
     days of receipt by the PX of the statement(s) of claim, publish a summary
     of any such statements. No Market Participant shall be considered as having
     received notice of a

                             Schedule 7.3 - Page 2





     claim decided or relief granted by a decision made under the Procedures
     unless the summary of the statement(s) of claim published by the PX
     includes such claim or relief

4.   MEDIATION

     After submission of the statement(s) of claim, the parties to a dispute may
request mediation if at least 75% of them so agree, or in disputes involving
only three parties, if at least two of the parties so agree. A submission to
mediation form signed by the requisite number of agreeing parties must be filed
with the AAA. Intervention shall not be allowed during the mediation stage.

5.   Selection of the Mediator

          (a) Upon receipt of a signed submission form and payment of the filing
     fee by the parties, the AAA shall distribute to the parties by facsimile or
     other electronic means a list containing the names of at least seven (7)
     prospective mediators with mediation experience, or with technical or
     business experience in the electric power industry, or both, as AAA shall
     deem appropriate to the dispute.

          (b) The parties shall either:

              (i) agree upon a mediator from the list provided, or from any
     alternative source provided that the prospective mediators meet the
     requisite qualifications or

              (ii) alternate in striking names from the list provided by AAA
     with the last name remaining on the list being assigned the mediator (the
     fir st party to strike a name shall be determined by lottery) or

              (iii) request that AAA select a mediator with the appropriate
     qualifications.

          (c) The parties shall have seven (7) days from the date of receipt of
     the AAA' s list of prospective mediators to complete the process of
     selecting and appointing a mediator.

          (d) The mediator shall comply with the disclosures required by Section
     11 of the Procedures.

6.   MEDIATION PROCESS

          (a) The mediator and representatives of the disputing parties with
     authority to settle the dispute shall, within fourteen (14) days after the
     mediator's date of appointment, schedule a date within sixty (60) days
     thereafter on which to mediate the dispute.


                             Schedule 7.3 - Page 3



          (b) Matters discussed during the mediation shall be confidential and
     shall not be referred to in any subsequent proceeding.

          (c) With the consent of all disputing parties, a resolution may
     include referring the dispute directly to a technical body (such as a
     Western Systems Coordinating Council technical advisory panel) for
     resolution or an advisory opinion, or referring the dispute directly to
     FERC. Within thirty (30) days, the PX shall publish notice of the referral
     of the dispute in the PX newsletter or electronic bulletin board, or any
     other method adopted by the PX ADR Committee.

7.   TERMINATION OF MEDIATION

          If(a) thirty (30) days have passed since the filing of the statement
     of the claim and the disputing parties have not succeeded in negotiating a
     resolution of the dispute, or (b) thirty (30) days have passed since the
     parties' first meeting with the mediator, whichever is later, such parties
     shall be deemed to be at an impasse and any disputing party may then
     commence the arbitration process, unless all of the parties by mutual
     agreement decide to extend the time for mediation.

8.   DEMAND FOR ARBITRATION

          A party seeking arbitration shall provide notice of its demand for
     arbitration to the other disputing parties identified in the statement(s)
     of claim, the AAA and the PX. The PX shall publish notice of such demand in
     the PX newsletter or electronic bulletin board, or any other method adopted
     by the PX ADR Committee within fourteen (14) days.

9.   INTERVENTION BY MARKET PARTICIPANTS OR OTHER THIRD PARTIES

          Upon receipt of the notice of a demand for arbitration, the AAA shall
     acknowledge receipt of the matter to the parties named in the notice. The
     AAA shall allow a period of thirty (30) days following the date of
     publication of the notice by the PX for third parties whose interests may
     be affected by the outcome of the dispute to file a written petition to
     appear and testify at arbitration hearings. If no petitions are received
     from intervening third parties within said thirty (30) day period, the case
     will move forward in accordance with Section 10 of the Procedures.
     Petitions to intervene shall be in writing and shall set forth the grounds
     of the proposed intervention, the position and interest of the petitioner
     in the proceeding, and whether petitioner's position is in support of or
     opposition to the relief sought in the notice. Petitioners for intervention
     also shall pay the appropriate filing fee if the intervention is
     challenged.

          Upon receipt of a petition to intervene from any third party, the AAA
     will invite the comments of the original parties set forth on the notice.
     If no objection is raised within fourteen (14) days to the petitions of the
     intervening third parties, the


                             Schedule 7.3 - Page 4



     petitioners shall be allowed to participate as requested and the case will
     move forward in accordance with Section 10 of the Procedures.

          If any timely objection is received to any petition for intervention,
     the AAA will appoint one neutral intervention arbitrator, without the
     submission of lists, to consider the petitions and objections and to make a
     binding determination regarding the participation of the party or parties
     requesting to intervene. The intervention arbitrator will be subject to the
     disclosures required by Section 11 of the Procedures.

          Upon confirmation of the appointment of the intervention arbitrator,
     the AAA will deliver to him or her the relevant petitions and objections
     thereto, and the intervention arbitrator will render a written decision
     within fourteen (14) days of receipt of those documents, without oral
     hearings. The arbitration shall, upon good cause shown, grant the
     petition(s) for intervention provided that the issues in the arbitration
     will not be unduly broadened or the arbitration unduly extended. The
     intervenors may only participate to the extent authorized by the
     intervention arbitrator. The case will then move forward in accordance with
     Section 10 of the Procedures. The intervenor(s) shall file a statement of
     claim, pay the appropriate filing fee and share in the costs associated
     with the arbitration in an amount to be determined by the arbitrator(s)
     appointed to hear the case.

10.  SELECTION OF THE ARBITRATOR(S)

          DISPUTES UNDER $1,000,000 Where the total amount of the claims and
     counterclaims in controversy is less than $1,000,000 (exclusive of legal
     costs and interest), the disputing parties shall select within fourteen
     (14) days an arbitrator from a list containing the names of at least ten
     (10) individuals with arbitration experience, or with technical or business
     experience in the electric power industry, or both. The AAA shall supply
     the list following expiration of the intervention period, submission of the
     formal demand for arbitration and payment of any appropriate filing fees.
     If the parties cannot agree upon an arbitrator within the stated time, the
     parties shall take turns striking names from the list of proposed
     arbitrators. The first party to strike a name shall be determined by
     lottery. The last name remaining on the list shall be designated the
     arbitrator.

          DISPUTES OF $1,000,000 OR MORE Where the total amount of claims and
     counterclaims in controversy is $1,000,000 or more (exclusive of interest
     and legal costs), the disputing parties may (a) agree on any person to
     serve as a single arbitrator, or (b) shall endeavor in good faith to agree
     within fourteen (14) days on a single arbitrator from a list often (10)
     individuals with arbitration experience, or with technical or business
     experience in the electric power industry, or both. The AAA shall supply
     the list following expiration of the intervention period, submission of the
     demand for arbitration and payment of any appropriate filing fees. If the
     parties are unable to agree on a single arbitrator within the stated time,
     the party or parties


                             Schedule 7.3 - Page 5



     demanding arbitration shall designate one arbitrator and the party or
     parties responding to the demand for arbitration shall designate one
     arbitrator, in both cases from the AAA's list of arbitrators no later than
     the tenth (l0th) day after the expiration of the stated time (the
     intervention arbitrator shall determine the position of intervenors for the
     purposes of arbitrator selection). The two arbitrators so chosen shall
     choose a third arbitrator from the AAA's list of arbitrators.

11.  DISCLOSURES REQUIRED OF MEDIATORS AND ARBITRATORS

     The designated mediator or arbitrator(s) shall be required to disclose to
     the parties any circumstances which might preclude them from acting in an
     objective and impartial manner. Each mediator or arbitrator shall disclose:

     (a)  any direct financial or personal interest in the outcome of the
          mediation or the arbitration;

     (b)  any information required to be disclosed by the California Code of
          Civil Procedure Section 1281.9; and,

     (c)  any existing or past financial, business, professional or personal
          interests that are likely to affect impartiality or might reasonably
          create an appearance of partiality or bias. Designated mediators or
          arbitrators shall disclose any relationships that they personally have
          with any party or its counsel, or with any individual whom they have
          been told will be a witness. They should also disclose any such
          relationship involving members of their families or their current
          employers, partners, or business associates. Designated mediators or
          arbitrators shall make a reasonable effort to inform themselves of any
          interests or relationships described above. The obligation to disclose
          interests, relationships, or circumstances that might preclude a
          mediator or an arbitrator from acting in an objective and impartial
          manner is a continuing duty that requires mediators and arbitrators to
          disclose, at any stage of the mediation or the arbitration, any such
          interests, relationships, or circumstances that arise, or are recalled
          or discovered. If, as a result of the continuing disclosure duty, a
          mediator or an arbitrator makes a disclosure which is likely to affect
          his or her impartiality, or might reasonably create an appearance of
          partiality or bias or if a party independently discovers the existence
          of such circumstances, a party wishing to object to the continuing use
          of a mediator or an arbitrator must provide written notice of the
          objection to the other parties within ten (10) days of receipt of the
          mediator's or arbitrator's disclosure or the date of a party's
          discovery of the circumstances giving rise to that party's objection.
          Failure to provide such notice shall be deemed to be a waiver of such
          objection. If a party timely provides a notice of objection to the
          continuing use of the mediator or the arbitrator, the parties shall


                             Schedule 7.3 - Page 6



          attempt to agree whether the mediator or the arbitrator should be
          dismissed and replaced in the manner described in Section 5 or 6 of
          the Procedures. If, within ten (10) days of a party's objection notice
          the parties have not agreed on how to proceed, the matter shall be
          referred to the AAA for resolution. With respect to intervention
          proceedings, the term "party" as used in this Section 11 shall include
          only the petitioner(s) in intervention and any challengers.

12.  MODIFICATION OF ARBITRATION PROCEDURES

     In determining whether to modify the standard procedures for use in the
     pending matter, the arbitrator(s) shall consider (a) the complexity of the
     dispute, (b) the extent to which facts are disputed, (c) the extent to
     which the credibility of witnesses is relevant to a resolution, (d) the
     amount in controversy, and (e) the opinions of, and any representations
     made by, the parties. Alternatively, the parties may, by written agreement,
     modify the standard procedures. In the event of a disagreement between the
     arbitrator(s) and the written agreement of the parties regarding
     arbitration procedures to be utilized, the parties' written agreement shall
     prevail.

13.  REMEDIES

     (a)  "BASEBALL" ARBITRATION If all of the parties agree to conduct the
          arbitration "baseball" style, each party shall submit to the
          arbitrator(s) and exchange with each other their last best offers in
          the form of the award they believe the arbitrator(s) should make, not
          less than seven (7) days in advance of the date fixed for the hearing,
          or such other date as the arbitrator(s) may decide. If a party fails
          to submit its last best offer in accordance with this Section, that
          party shall be deemed to have accepted the offer proposed by the other
          party. The arbitrator(s) shall be limited to awarding only one of the
          proposed offers, and may not determine an alternative or compromise
          remedy.

     (b)  ARBITRATOR'S DISCRETION Unless all of the parties agree to conduct the
          arbitration "baseball" style, the arbitrators shall have the
          discretion to grant the relief sought by a party, or determine such
          other remedy as is appropriate. Unless otherwise expressly limited
          herein, the arbitrators shall have the authority to award any remedy
          or relief available from FERC, or any court of competent jurisdiction.
          Where any PX Document allows the parties to reach an agreement on a
          matter at some future time and provides that defaults or disputes
          shall be referred to the PX ADR Procedures, the arbitrator(s) shall
          make a decision on the matter considering what is fair and reasonable
          in light of the circumstances.


                             Schedule 7.3 - Page 7



14.  SUMMARY DISPOSITION

     The arbitrator(s) shall dispose in a sununary manner a statement of claim,
     response to a statement of claim, counterclaim, demand for arbitration or a
     response to a demand for arbitration that in the reasoned opinion of the
     arbitrator(s) does not have a good faith basis in either law or fact. If
     the arbitrator(s) make a determination that there is no good faith basis in
     either law or fact, the arbitrator(s) shall have discretion to award the
     costs of the time, expenses, and other charges of the arbitrator(s) to the
     prevailing party. A determination made under this Section (a) may be made
     any time after the review and consideration by the arbitrator(s) of the
     parties' briefs, which may be before a hearing is held on the matter and
     (b) is subject to appeal under the Tariff.

15.  DISCOVERY PROCEDURES

     Adequate provision for the discovery of relevant facts, including the
     taking of testimony under oath, production of relevant documents and other
     things, the presentation of evidence, the taking of samples, conducting of
     tests, and inspection of land and tangible items shall be granted by the
     arbitrator(s). When deciding the nature and extent of such discovery, the
     arbitrator(s) shall take into account (a) the complexity of the dispute,
     (b) the extent to which facts are disputed, (c) the extent to which the
     credibility of witnesses is relevant to a resolution, and (d) the amount in
     controversy. Discovery disputes shall be resolved by the arbitrator(s) by
     telephonic means or other means determined by the arbitrator(s).


                             Schedule 7.3 - Page 8


16.  EVIDENTIARY HEARING

     An evidentiary hearing with provision for the examination and
     cross-examination of witnesses shall be conducted unless all parties
     consent in writing to the resolution of the matter on the basis of the
     written record. The forms and methods for taking evidence shall be
     determined by the arbitrator(s) and may be modified pursuant to Section 12
     of the Procedures. The arbitrator(s) may require such written or other
     submissions from the parties as deemed appropriate by the arbitrator(s),
     including submission of direct and rebuttal testimony of witnesses in
     written form. The arbitrator(s) may exclude any evidence that is
     irrelevant, immaterial, unduly repetitious, unduly prejudicial or
     privileged. The arbitrator(s) shall compile a complete evidentiary record
     of the arbitration hearing (that may include a summary of testimony
     presented and the briefs, affidavits and exhibits submitted), which shall
     be available to the parties upon request on completion of the arbitration.

17.  CONFIDENTIALITY

     Subject to the other provisions of the Procedures, any party may claim that
     information contained in a document otherwise subject to discovery is
     "confidential" if such information would be so characterized under the
     Federal Rules of Evidence. The party making such claim shall provide to the
     arbitrator(s) in writing the basis for the assertion. If the claim of
     confidentiality is confirmed by the arbitrator(s), they shall establish
     requirements for the protection of such documents or other information
     designated as "confidential" as may be reasonable and necessary to protect
     the confidentiality and commercial value of such information. Any party
     disclosing information in violation of these provisions or requirements
     established by the arbitrator(s), unless such disclosure is required by
     federal or state law or by a court order, shall thereby (a) waive any right
     to introduce or otherwise use such information in any judicial, regulatory,
     or other legal or dispute resolution proceeding, including the proceeding
     in which the information was obtained and (b) be subject to monetary
     sanctions by the arbitrator(s) and injunctive relief in a court of
     competent jurisdiction.

18.  TIMETABLE

     Promptly after appointment, the arbitrator(s) shall set a date for the
     issuance of the arbitration decision, which shall be within six (6) months
     (or such earlier date as the parties and the arbitrator(s) may agree) from
     the date of their appointment, with other dates, including the dates for an
     evidentiary hearing or other final submissions of evidence, set in light of
     this date. The date for the evidentiary hearing or other final submission
     of evidence may be extended by the reasonable discretion of the
     arbitrator(s). The arbitrator(s) shall have the power to impose sanctions,
     including dismissal of the proceeding, for dilatory tactics or undue delay
     in completing the arbitration proceedings.


                             Schedule 7.3 - Page 9



19.  DECISION

     (a)  Except as provided below with respect to the "baseball" style
          arbitration, the arbitrator(s) shall issue a written decision (and a
          sununary suitable for publication by the PX) granting the relief
          requested by one of the parties, or such other remedy as is
          appropriate, if any, and shall include findings of fact and law. The
          arbitrator'(s) decision shall be based on the evidence in the record
          and the terms of PX Documents, as applicable, and shall consider (and
          not violate) applicable substantive United States federal law,
          including the FPA, and any applicable FERC regulations and decisions
          or applicable substantive state law. Additionally, the arbitrator(s)
          may consider relevant decisions in previous arbitration proceedings. A
          summary of the disputed matter and the decision of the arbitrator(s)
          shall be published in the PX newsletter or electronic bulletin board,
          or any other method adopted by the PX ADR Committee, and maintained by
          the Px.

     (b)  In an arbitration conducted "baseball" style, the arbitrator(s) shall
          issue a written decision adopting one of the awards proposed by the
          parties, and shall include findings of fact and law. The decision of
          the arbitrator(s) shall be based upon the evidence in the record and
          the terms of PX Documents, as applicable, and shall consider (and not
          violate) applicable substantive United States federal law, including
          the EPA, and any applicable FERC regulations and decisions or
          applicable substantive state law. If the arbitrator(s) conclude that
          no proposed award is consistent with the factors enumerated in the
          evidence in the record and the terms of PX Documents, as applicable,
          or with the applicable substantive United States federal law,
          including the EPA, and any applicable FERC regulations and decisions
          or with the applicable substantive state law, or address all of the
          issues in dispute, the arbitrator(s) shall specify how each proposed
          award is deficient and direct that the parties submit new proposed
          awards that cure the identified deficiencies. A summary of the
          disputed matter and the decision of the arbitrator(s) shall be
          published within thirty (30) days in the PX newsletter or electronic
          bulletin board, or any other method adopted by the PX ADR Committee.
          An award shall not be deemed to be precedential.

     (c)  Where a three-person panel of arbitrators is appointed pursuant to
          Section 10 of the Procedures, at least two of the arbitrators must
          agree on the decision.


                             Schedule 7.3 - Page 10



20.  COMPLIANCE

     Unless the decision of the arbitrator(s) is appealed to FERC or a court of
     competent jurisdiction, the disputing parties shall, upon receipt of the
     decision, immediately take whatever action is required to comply with the
     award to the extent the award does not require regulatory action. An award
     that is not appealed shall be deemed to have the same force and effect as
     an order entered by the FERC or any court of competent jurisdiction.

21.  ENFORCEMENT

     Following the expiration of the time for appeal of an award, any party may
     apply to FERC or any court of competent jurisdiction for entry and
     enforcement of judgement based on the award.

22.  COSTS

     Subject to the adjustment pursuant to Section 9 with respect to third party
     intervention, the costs of the time, expenses, and other charges of the
     arbitrator(s) shall be borne by the parties to the dispute, with each side
     on an arbitrated issue bearing its pro-rata share of such costs, and each
     party to an arbitration proceeding bearing its own costs and fees. If the
     arbitrator(s) determine that a demand for arbitration or response to a
     demand for arbitration was made in bad faith, the arbitrator(s) shall have
     the discretion to award the costs of the time, expenses, and other charges
     of the arbitrator(s) to the winning party. Notwithstanding the above, at
     the discretion of the arbitrator(s), the winning party in any dispute which
     has resulted in the enforcement of an important right affecting the public
     interest shall not be required to pay any of the costs of the arbitrator(s)
     and may recover such of its own reasonable attorney fees, expert witness
     fees, and other reasonable costs from the losing party to the dispute if
     (a) a significant benefit, whether pecuniary or non-pecuniary, has been
     conferred on the general public, (b) the necessity and financial burden of
     private enforcement are such as to make the award appropriate and (c) such
     fees should not, in the interest of justice, be paid out of the recovery.
     The parties should be aware of Rules 48-5 1 of the AAA's Commercial
     Arbitration Rules and pages 13-14 of the AAA's Commercial Mediation Rules
     regarding costs. A complete fee schedule is attached to the Procedures.

23.  APPELLATE RECORD

     The parties intend that FERC or the court of competent jurisdiction should
     afford substantial deference to the factual findings of the arbitrator(s).
     No party shall seek to expand the record before the FERC or court of
     competent jurisdiction beyond that assembled by the arbitrator(s), except
     (a) by making reference to legal authority which did not exist at the time
     of the decision of the arbitrator(s), or (b) if such party contends the
     decision was based upon or affected by fraud, collusion, corruption,
     misconduct or misrepresentation.


                             Schedule 7.3 - Page 11



24.  APPELLATE PROCEDURES

     (a)  If a party to an arbitration desires to appeal an award, that party
          shall provide a notice of appeal to the PX and all parties within
          fourteen (14) days following the date of the award. The PX shall
          publish within fourteen (14) days' notice of the appeal in the PX
          newsletter or electronic bulletin board, or any other method adopted
          by the PX ADR Committee. Within ten (10) days of filing the notice of
          appeal, the appellant must file an appropriate application, petition
          or motion with FERC to trigger review under the FPA or with a court of
          competent jurisdiction. Such filing shall state that the subject
          matter had been the subject of arbitration pursuant to the Tariff.

     (b)  Within thirty (30) days of the notice of appeal (or such other period
          as FERC or the court of competent jurisdiction may specify) the
          appellant shall file the complete evidentiary record of the
          arbitration and a copy of the award with FERC or with the court of
          competent jurisdiction. The appellant shall serve copies of a
          description of all materials included in the submitted evidentiary
          record on the PX and all parties.

     (c)  Implementation of the award shall be deemed stayed pending an appeal
          unless and until, at the request of a party, the FERC or the court of
          competent jurisdiction to which an appeal has been filed issues an
          order dissolving, shortening, or extending such stay. However, a
          summary of each appeal shall be published in the PX newsletter or
          electronic bulletin board, or any other method adopted by the PX ADR
          Committee.

     (d)  FERC orders resulting from appeal shall be subject to judicial review
          pursuant to the EPA.


                             Schedule 7.3 - Page 12


                                                                       EXHIBIT A


                                  FEE SCHEDULE


1.   Mediation Services.

     $150.00 per party filing fee.

     o    plus compensation per hour for the mediator split by the parties
          (hourly rate of compensation will vary depending upon the mediator
          selected.

     o    plus $75.00 per hour surcharge per hour of mediator service (split
          by the parties to cover AAA's administrative services).

     AAA's delivery of mediation services commences upon the filing of a
     submission to mediation form with AAA that contains the requisite number of
     signatures as established by the PX Tariff.

2.   Arbitration Services. AAA's Commercial Arbitration administrative fees are
     based on the amount of the claim or counterclaim. Arbitrator compensation
     is additional. Unless the parties agree otherwise, arbitrator compensation
     and administrative fees are subject to allocation by the arbitrator in the
     final award. Services in respect of intervention requests shall be paid
     pursuant to Section 3 of this Exhibit A.

     a.   Filing Fees. A nonrefundable filing fee is payable in full by the
          filing party when a claim, counterclaim or additional claim is filed,
          as follows:

<Table>
<Caption>
             Amount of Claim                                     Filing Fee
             ---------------                                     ----------
                                                              
             Up to $10,000                                       $   500.00
             Above 10,000 to $50,000                                 750.00
             Above $50,000 to $100,000                             1,250.00
             Above $100,000 to $250,000                            2,000.00
             Above $250,000 to $500,000                            3,500.00
             Above $500,000 to $1,000,000                          5,000.00
             Above $1,000,000 to $5,000,000                        7,000.00
</Table>

          When no amount can be stated at the time of filing, the minimum fee is
          $2,000, subject to increase when the claim or counterclaim is
          disclosed. The minimum filing fee for any case having three
          arbitrators is $2,000. When a claim or counterclaim is not for a
          monetary amount, AAA shall determine an appropriate filing fee.


                             Schedule 7.3 - Page 13



          The administrative fee for claims in excess of $5,000,000 will be
          negotiated with the parties to the dispute.

          The expedited procedures outlined in sections 53-5 7 of the Commercial
          Arbitration Rules (as modified herein) shall apply in any case where
          no disclosed claim or counterclaim exceeds $50,000, exclusive of
          interest and arbitration cost. Those procedures provide for
          arbitrators to be directly appointed by AAA. If the parties desire to
          chose an arbitrator as provided in Section 7.3.1.1 of the PX Tariff, a
          service charge of $150 will be payable by each party.

     b.   Hearing Fees. For each day of hearing held before a single arbitrator,
          an administrative fee of $150 is payable by each party. For each day
          of hearing held before a multi-arbitrator panel, an administrative fee
          of $250 is payable by each party. There is no AAA hearing fee for the
          initial Procedural Hearing. There is no hearing fee for the initial
          hearing in cases in which no party's claim exceeds $10,000,
          administered under the expedited procedures, but the arbitrator's
          compensation shall be split by the parties (hourly rate of
          compensation will vary depending upon the arbitrator selected).

     c.   Postponement/Cancellation Fees. A fee of $150 is payable by a party
          causing a postponement of any hearing scheduled before a single
          arbitrator. A fee of $250 is payable by a party causing a postponement
          of any hearing scheduled before a multi-arbitrator panel.

     d.   Suspension for Nonpayment. If arbitrator compensation or
          administrative charges have not been paid in full, the administrator
          may so inform the parties in order that one of them may advance the
          required payment. If such payments are not made, the arbitrator or
          arbitrator panel may order the suspension or termination of the
          proceedings. If no arbitrator has yet been appointed, the
          administrator may suspend the proceedings.

3.   Intervention Services. There will be no additional charge if an
     intervention request is not challenged. If the request for intervention is
     challenged by a party to the dispute, the following fee schedule shall
     apply:

     o    Each challenger and each challenged intervenor shall pay a $150 fee
          (even if parties make joint filings)

     o    plus compensation per hour for the arbitrator split between the
          intervenor(s) being challenged and the challenger(s) (compensation
          rate will vary depending upon the arbitrator selected)

     o    plus $75 surcharge per hour of arbitrator compensation split by the
          intervenor being challenged and by the challenger(s) (to cover AAA
          administrative costs).


                             Schedule 7.3 - Page 14



     o    If the arbitrator finds that an intervention request or challenge was
          made in bad faith or for purposes of delay, the arbitrator shall have
          discretion to assess all of the fees and costs related to the
          intervention arbitration to the other party.

     o    After an intervention request has been granted, the intervenor shall
          file a statement of claim. If the intervenor seeks separate monetary
          relief the intervenor shall pay the filing fee set forth in Section 2
          of this Exhibit A with respect to arbitration issues.



                             Schedule 7.3 - Page 15



                                  SCHEDULE 7.8
                         Disruption of Critical Services

Perot Systems is providing Services that support the Critical Services set forth
below. In the event any of these Critical Services become unavailable
("disruption"), Perot Systems shall (in addition to its other obligations under
this Agreement) make all reasonable commercial efforts, as applicable, to
promptly restore functionality of such Critical Services through workarounds or
transfer of operations to the disaster recovery site. In the event Perot Systems
is not able to restore the Critical Services within such cure period, CalPX
shall, in addition to any other rights or remedies under this Agreement, have
the rights set forth in Section 7.8 of this Agreement.

This schedule may be revised from time to time by amending this Agreement.


<Table>
<Caption>
                                                  NO. OF DISRUPTIONS IN A 6
     CRITICAL SERVICE            CURE PERIOD          MONTH TIME PERIOD*
- ----------------------------    -------------     -------------------------
                                            
    Day Ahead Trading             48 hours                   3
    Day Ahead Scheduling          48 hours                   3
      Day-Of Trading              72 hours                   3
   Hour-Ahead Scheduling          72 hours                   3
   Real-Time Operations           72 hours                   3
    Block Forward Trading         72 hours                   3
        Metering                  168 hours                  3
       Settlements                168 hours                  3
         Billing                  168 hours                  3
    Dispute Resolution            168 hours                  3
 Participant Registration         72 hours                   3
    Master File Update            72 hours                   3
</Table>



                              Schedule 7.8 - Page 1