FW: AMENDMENT TO PXJPEROT IT SERVICES AGREEMENT

    Page 1 of 1






From:           Shirmnohammadi, Dariush
To:             dayee(calpx.com
Cc:             Chung, Bonnie
Subject:        FW: AMENDMENT TO PX/PEROT IT SERVICES AGREEMENT
Sent:           2/5/01 11:46 AM
Importance:     Normal

  Dan,

  Sorry to bother you. But based on Chuck, Bonnie will print you a copy
of this e-mail to sign. Lawyers!!! Dariush
  -----Original Message-
  From: Daniel_A_Yeegcalpx.com [mailto:Daniel A Yeecalvx.com
  Sent: Friday, February 02, 2001 5:20 PM
  To: dariush.shirmohammadigps.net

  Cc: GeorgeSladojecalpx.com; J_IYurkaningcalpx.com; Lynn Millerecalpx.com;
  Susan_D_Rossi~calpx.com

  Subject:  AMENDMENT TO PX/PEROT IT SERVICES AGREEMENT

  DARIUSH:
  Effective immediately, you are unconditionally released from the requirements
  of Section 2.9 of the IT Services Agreement between CalPX and Perot Systems
  Corporation (dated February 28, 2000).

  You may proceed to solicit interests and offer employment to'CaIPX employees.
  Dan Yee
  CIO     /s/
  CALIFORNIA POWER EXCHANGE
  dyee~calpx.com
  626) 537-3132









                   INFORMATION TECHNOLOGY SERVICES AGREEMENT

                        EFFECTIVE AS OF FEBRUARY 28, 2000

                                     BETWEEN

                      CALIFORNIA POWER EXCHANGE CORPORATION

                                       AND

                            PEROT SYSTEMS CORPORATION





<Table>
                                                                         
                                   Article 1
                        Definitions, Agreement and Term

1.1  Certain Definitions ....................................................1
1.2  Agreement ..............................................................1
1.3  Tenn ...................................................................1

                                   Article 2
                        Account Management and Personnel

2.1   Account Manager .......................................................1
2.2   Change of Account Manager .............................................1
2.3   Perot Systems Key Employees ...........................................2
2.4   PSC Personnel .........................................................3
2.5   Conduct and Removal of PSC Personnel ..................................3
2.6   CalPX Representative ..................................................4
2.7   Transfer of Personnel .................................................4
2.8   Subcontractors ........................................................4
2.9   Restrictions on Hiring ................................................5

                                   Article 3
                                    Services

3.1   Base Services .........................................................5
3.2   Service Levels ........................................................6
3.3   Additional Services ...................................................7
3.4   Change Control Procedure ..............................................8
3.5   IT Procurement Services ..............................................10
3.6   Management Procedures Manual .........................................10
3.7   Reports ..............................................................10
3.8   Improved Technology ..................................................10
3.9   Changes in Law and Regulations .......................................10
3.10  TechnicalStandards ...................................................11
3.11  Knowledge Sharing ....................................................11
3.12  Customer Satisfaction ................................................11
3.13  Regular Improvement ..................................................12

                                   Article 4
                             CaIPX Responsibilities

4.1   Cooperation ..........................................................12
4.2   Access to Software ...................................................13
4.3   Access to CalPX Facilities ...........................................13
</Table>




<Table>
                                                                        
4.4   Access to Technology .................................................14
4.5   Required Improvements ................................................14

                                   Article 5
                           Payments to Perot Systems

5.1   Base Services Fees....................................................15
5.2   Additional Services Charges ..........................................15
5.3   Performance Bonuses and Credits ......................................15
5.4   Reimbursable Expenses ......... ......................................16
5.5   Taxes ................................................................16
5.6   Cost of Living Adjustment ............................................16
5.7   Time of Payment ......................................................17
5.8   Audit of Charges .....................................................17
5.9   Pass-Through Expenses ................................................17
5.10  Adjustment of Budget .................................................17
5.11  No Other Charges......................................................18
5.12  Fee Disputes..........................................................18
5.13  Proration ............................................................19
5.14  Unused Credits .......................................................19
5.15  Retention of Records . ...............................................19

                                   Article 6
              Confidentiality, Proprietary Rights and Audit Rights

6.1   CalPX Data ...........................................................19
6.2   Confidential Information..............................................20
6.3   CalPX Proprietary Software ...........................................22
6.4   Perot Systems Software and Perot Systems Tools .......................22
6.5   Rights in Developed Software .........................................23
6.6   Know-How .............. ..............................................25
6.7   Audit of CalPX's Business ............................................26
6.8   Data Security ........................................................26
6.9   Safety and Security Procedures........................................26
6.10  Security Relative to CalPX Competitors ...............................26

                                   Article 7
                       Performance Review and Termination

7.1   Performance Review ...................................................27
7.2   Dispute Resolution ...................................................27
7.3   Arbitration...........................................................27
7.4   Termination for Cause.................................................28
</Table>




<Table>
                                                                         
7.5   Termination for Non-Payment ..........................................28
7.6   Termination for Insolvency ...........................................28
7.7   Termination for Convenience ..........................................28
7.8   Termination for Causing Failure of Critical Services .................29
7.9   Force Majeure Termination Provision ..................................30
7.10  Continuity of Services................................................30
7.11  Transition Obligations ...............................................30
7.12  Force Majeure ........................................................32

                                    Article 8
                                   Indemnities

8.1   Bodily Injury and Property Damage Indemnity ..........................32
8.2   Intellectual Property Indemnity ......................................33
8.3   Employment Indemnity .................................................33
8.4   CalPX Business Risk Indemnity ........................................34
8.5   Other Perot Systems Indemnities.... ..................................34
8.6   Indemnification Procedures .... ......................................34

                                    Article 9
                                    Liability

9.1   Limitation of Liability...............................................35
9.2   Limitation on Type of Damages.........................................35
9.3   Exclusions .... ......................................................35
9.4   Year 2000 Problems .... ..............................................35

                                   Article 10
                                    Warranty

10.1  By Perot Systems .....................................................36
10.2  By Each Party ......... ..............................................36
10.3  Disclaimer of Warranty ........ ......................................37
10.4  Certain Covenants ........ ...........................................37

                                   Article 11
                                    Insurance

11.1  Insurance ..... ......................................................38
</Table>




<Table>
                                                                        
                                   Article 12
                                  Miscellaneous

12.1  Relationship of Parties ..............................................39
12.2  Notices ..............................................................40
12.3  Assignment ...........................................................40
12.4  Severability..........................................................41
12.5  Captions .............................................................41
12.6  Modification; Waiver .................................................41
12.7  No Third-Party Beneficiaries .........................................41
12.8  Governing Law ........................................................41
12.9  Consents, Approvals, Requests and Opinions ...........................41
12.10 Survival .............................................................41
12.11 Sole and Exclusive Venue .............................................42
12.12 Covenant of Further Assurances .......................................42
12.13 Negotiated Terms .....................................................42
12.14 Remedies Cumulative...................................................42
12.15 Conflict of Interest .................................................42
12.16 Export................ ...............................................42
12.17 Entire Agreement......................................................42
12.18 Media Releases........................................................43
12.19 Task Order No. 5......................................................43

                                       Schedules

1.1   Definitions
1.2   Excluded Services

2.3   Personnel
2.4   Key Employees
2.5   Corporate Information Securities Standards, Guidelines & Procedures
2.7   Transfer of Employees

3.1   Base Services
3.2   Service Levels

4.2   Managed Software
4.4   CalPX Technology
4.5   Required Improvements

5.1   Service Charges
5.2   Perot Systems Standard Commercial Rates
5.4   CalPX Expense and Reimbursement Policy

7.3   Supplemental Procedures for CalPX Disputes
7.8   Disruption of Critical Services
</Table>




                   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 ("CaIPX"), a California nonprofit public benefit
corporation with its principal place of business at 200 South Los Robles Avenue,
Suite 400, Pasadena, California 91 101.

                                   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    Tern. 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 full
       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 CaIPX 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


                                            2



              the matter and take appropriate action which may include (a)
              removing such individual from his or her status as Key Personnel
              and notifying CaIPX of such 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 CaIPX 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, CaIPX 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 CaIPX, those PSC Personnel located on CalPX's premises
              may only provide services on such premises which support CalPX's
              operations.


                                            3


2.6    CaIPX Representative. CalPX shall designate a representative ("CaIPX
       Representative") who shall have overall responsibility for managing and
       coordinating the performance of CalPX's 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 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 CaIPX
       Representative may delegate such of his or her responsibilities to
       another officer or director of CaIPX 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 CaIPX 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 CatPX 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:


                                       4


       (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 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 fully 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.


                                       5


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
              partial analysis of the operation of CaIPX'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 CaIPX'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 CaIPX 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.


                                       6


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." 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


                                       7


              Services. Perot Systems will commence the Additional Services upon
              execution of the Task Order by CalPX and Perot Systems.

3.4    Change Control Procedure.

       (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



                                       8



       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.

(e)    Within ten business days (or such longer period as is mutually agreeable)
       after receiving a request from CaIPX for a Change Order, Perot Systems
       shall prepare and provide to CaIPX'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
       CaIPX 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


                                       9



       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 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 CaIPX, for CalPX's 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 CalPX's information technology operations for CalPX's
       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


                                       10


              provided by Perot Systems. Perot Systems and CaIPX 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.

       (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 CalPX's 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 CaIPX's 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



                                       11

              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.

       (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 CaIPX, none of whom shall be
              competitors to Perot Systems. Perot Systems shall select one of
              such third party benchmarkers 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 full 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
                             Ca1PX 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.


                                       12




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 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
              ("Ca1PX 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 ("CaIPX 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
              CaIPX 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 (i) Services at the RIME (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 CaIPX
       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


                                       13


       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.

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 "Ca1PX Technology").
       CaIPX 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.




                                       14


                                    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- 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



                                       15

              5.6, for that calendar quarter, then Perot Systems shall credit
              Ca1PX 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 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,
       CatPX 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

                                       16















       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 "Ca1PX 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 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



                                       17














              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 CaIPX'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 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).
              CalPX 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
              CaIPX 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


                                       18







              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.


                                    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 ("CaIPX 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 CaIPX 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

                                       19










              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 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

                                       20















              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.

       (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.













                                       21
















       (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.

       (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 CaIPX shall have no rights or interests therein, except as
              otherwise provided in this Agreement.


                                       22















       (b)    Perot Systems shall provide CalPX, Affiliates of CaIPX and Ca1PX
              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, CaIPX 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 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 CaIPX's ownership of any such Work Product.



                                       23















       (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 ("Ca1PX 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 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

                                       24















                     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 CaIPX the license rights referred to in
              paragraph (b) above, provided that if any Embedded Software is
              owned by a third party, then the terms 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 CaIPX under this Agreement, (i) a
              royalty-free, 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).




                                       25














       (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 CaIPX 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 CatPX'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 CaIPX 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 CaIPX 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 CaIPX Representative of the same and (2) if
       the CaIPX 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 CaIPX 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 CaIPX Competitors. If Perot Systems intends to
       provide the Services from a service location that is shared with (I) a
       third party or (2) any part of the business of Perot Systems that
       competes with the business of CaIPX, then, prior to providing any of the
       Services from such service location, Perot Systems shall develop a
       process, subject to CaIPX's prior approval, to restrict access to the
       systems in any shared environment in a manner that prevents persons other
       than PSC Personnel from having access to CalPX's Confidential
       Information.





                                       26













                                    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 review.

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 panel may not award monetary damages in
              excess of the damages allowed pursuant

                                       27














              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 CaIPX'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 365(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 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 Tern.


                                       28
















              (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 CalPX 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 CalPX'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 CaIPX 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.

                                       29











7.9    Force Maleure 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 CaIPX 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
              CaIPX ("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
                     CaIPX.

                                       30















              (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 CaIPX Data in a format specified
                     by CaIPX 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

                                       31















              payable to Perot Systems for such Transition Assistance for that
              month adjusted, as 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 Maieure. 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 Maieure 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.






                                       32









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 CaIPX 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 CaIPX.)

       (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 CaWPX 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 CaIPX. 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

                                       33














              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    CaIPX'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 CaIPX'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 in 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.









                                       34




                                    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 T 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


                                       35



this Section 9.4, upon request by CalPX, Perot Systems shall assign PSC
Personnel to 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 CaIPX 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.


                                       36



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


                                       37



                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.


                                       38



       (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
              CaIPX 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 CaIPX 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


                                       39



              liable for social security, unemployment, disability insurance or
              other tax or 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) CaIPX may
assign this Agreement in connection with a corporate 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


                                       40



       (b)    any additional costs or expenses arising out of or relating to any
              such assignment by 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,


                                       41



       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 CaIPX 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 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


                                       42



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 enforced.

12.18 Media Releases. All media releases, public announcements and public
disclosures by CalPX or Perot Systems relating to this Agreement, including
without limitation, promotional or marketing material (but not including any
announcement intended solely for internal distribution within CalPX 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                PEROT SYSTEMS CORPORATION
   CORPORATION


By:   /s/                                By:   /s/
Name:                                    Name:
Title:                                   Title:
Date:                                    Date:


                                       43



                                  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 I




"CaIPX" has the meaning given this tern 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 that (i) contains a
modification to the source code of CalPX Proprietary Software, or (ii) contains
newly developed source code the functionality of which cannot reasonably be
separated from the functionality of the related CalPX 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 CalPX Proprietary Software and CalPX 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.

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

                              Schedule 1.1 - Page 2


"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 CalPX by Perot
Systems in connection with 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 CalPX's Confidential
Information.

"Desktop Procurement Services" means the services that 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,
programming 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.

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

                              Schedule 1.1 - Page 3




"Full-Time Equivalent" or "FTE" 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, pro-rated on a 160
hours per month basis, shall be used to determine the number of FTEs 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 l(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 CalPX 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.

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


                             Schedule 1. I - Page 4




"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 Ca1PX
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(f).

"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 (l)(c)(l) 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 5.1 0(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.

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


                              Schedule 1.1 - Page 5




"RIMF" has the meaning given this term in Section 3. 1.

"Service Fees" means the fees payable by CaIPX 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, that 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, CalPX or any of their Affiliates.

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

"Transition Assistance" has the meaning given this term in Section 7.1 1 (a).

"Transition Assistance Period" has the meaning given this term in Section 7.1 1
(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).

"Work Product" means all Deliverables and Documentation, including but not
limited to reports, drawings, plans, specifications, computer disks, tapes,
printouts, studies, memoranda,

                             Schedule 1. I - Page 6




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. I - 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, CalPX Vendor Software or CalPX 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 suchPSC
       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 I



       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

Byrne, Stanley              Borquez, Richard            Chapman, James
Cheng, Leonard              De Guzman, Benedict         Gonzalez, Alex
Grimaldi, Matthew           Johnson, Raymond            Kam, Gary
Khoshnood, Davood           Lin, Yung Kai               Litwin, Wayne
Liu, Chuck                  Lofton, Jeffery             Long, Charles
Lynch, Pamela               Moring, Wendall             Ridley, Brent
Rinaldi, John               Shia, Ike                   Silva, James
Sun, Rick                   Swanson, Hilary             Timberman, Steven
Tran, Kiet                  Wang, Nellie                Wen, Dongfang
Wiles, Noah                 Williams, John              Wong, Nancy
Schlotfelt, Robert

Part B - CalPX Contractors

Ahmadzadeh, Behzad
Mohtashami, Marijan
Paragos, Derek
Walker, Mary Anne
Zafrani, Jim


                              Schedule 2.3 - Page I



                                  SCHEDULE 2.4
                                  Key Employees

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

           Employee

   Richard Borquez
   Ben DeGuzman
   Davood Khoshnood
   Chuck Liu
   Pamela Lynch
   John Rinaldi
   Hilary Swanson
   John Williams
   Nancy Wong


                              Schedule 2.4 - Page I









                                  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 CaIPX's 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

      Program Office Services.

      Perot Systems shall organize and manage a program office (i) to act as a
      single point of contact to manage CalPX's information technology projects,
      (ii) to facilitate the integration of common efforts across CalPX'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 CalPX's managers to understand project priorities and
            budget, and to resolve issues.

      c.    Schedule projects after approval is given by CalPX 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
            CalPX, 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 initiatives 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.

      l.    Work with CalPX to integrate initiatives into tactical plans.

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


                              Schedule 3.1 - 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 CalPX
                  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-

                              Schedule 3.1 - Page 2











       level guidance to Perot Systems on CalPX's business priorities as they
       affect the 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 CaIPX:
              CalPX Representative
              Representatives of each major business unit:
                     Trading
                     Settlements and Billing
                     Finance
                     Marketing
                     Compliance
                     Regulatory







                              Schedule 3.1 - Page 3














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   Ca1PX'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,
            CaIPX 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's 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 CaIPXs 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







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. CaIPX 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's 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













      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 CaIPX'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







      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 CaIPX's 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






       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 in 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's 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


       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 CaIPX 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 in 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


       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 CaIPX'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 CalPX.

       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


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:

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

              *      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:

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

                     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.

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 Description                 Software
                                                  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


During the Transition Period, CaIPX 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 Description               Software
                                                       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                 5.1.1.5
        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


Part D - Applications Development Services

a)  Application Development Services.

*   Perot Systems shall assist CaIPX 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.

*   Perot Systems and CaIPX 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.

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

*   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 CaIPX ("Configuration
    Services").

*   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.

*   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"). CaIPX 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 CaIPX 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



    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.

*   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. CaIPX 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

              correction of the Defects identified on the Punch List and to
              identify any remaining Defects. If CaIPX 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 re- test the corrected Deliverable to confirm the
              correction of the Defects. If CaIPX 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



Part E - Business Consulting Services

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

* Trading and scheduling
* Business and regulatory affairs
* Settlements calculation
* Market compliance
* Information technologies
* Finance
* Marketing
* Product Development

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

*   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;

*   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

*   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


                                  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 Systems 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.

       *      Each Service Level shall be measured using then existing
              measurement Tools.

       *      Server 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
              result from modifications to such Application made by PSC
              Personnel), or services provided by Third Party Vendors (other
              than PSC Personnel).

       *      CaIPX 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.

       *      Service Levels shall be measured but not enforced 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.

       *      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.

Production Servers   Servers running Core Applications Perot Systems
                     shall cause servers A server shall be deemed 95% used by
                     CalPX to operate the day running Core Applications used by
                     "available" if the operating ahead and hour ahead markets
                     should CalPX to operate the day ahead and system installed
                     on such be "available" 7 days per week, 24 hour ahead
                     markets to be "available" server is responding to hours per
                     day. 7 days per week, 24 hours per day,console commands
                     entered except during maintenance windows at the server.
                     and other scheduled outages approved in advance by CalPX,
                     for at least the percent of time set forth under the
                     heading Service Level Requirement.

Back-Office Servers  Servers running Core Applications Perot Systems
                     shall cause servers A server shall be deemed 95% that are
                     used by CalPX (i) to settle running Core Applications used
                     by "available" if the operating transactions from the day
                     ahead and CaIPX (i) to settle transactions from system
                     installed on such hour ahead markets or (ii) to manage the
                     day ahead and hour ahead markets server is responding to
                     its financial or other internal or (ii) to manage its
                     financial or other console commands entered operations
                     (e.g., PeopleSoft internal operations to be "available" 7
                     at the server. applications) should be "available" 7 days
                     per week, 24 hours per day, days per week, 24 hours per
                     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 Simulation Servers forming part of
                     the Enterprise Perot Systems shall cause servers A server
                     shall be deemed 90% Servers Technology Test Facility should
                     be forming part of the Enterprise " available" if the
                     operating "available" during Normal Business Technology
                     Test Facility to be system installed on such Hours and
                     otherwise during scheduled "available" during Normal
                     Business server is responding to simulations during
                     scheduled test Hours, except during maintenance console
                     commands entered periods. windows and other scheduled
                     outages at the server. (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.


                              Schedule 3.3 - Page 2


Gateway Servers      The DEC Alpha servers running the Perot System
                     shall cause the DEC A server shall be deemed 95% OM Gateway
                     should be 'available' 7 Alpha servers running the OM
                     "~available" f the operating days per week, 24 hours per
                     day. Gateway to be available days per system installed on
                     such week, 24 hours per day, except server is responding to
                     during maintenance windows and console commands entered
                     other scheduled outages approved in at the server. advance
                     by CaIPX, for at least the percent of time set forth under
                     the heading Service Level Requirement

User                 accounts and ID User accounts and user IDs for CaIPX During
                     Normal Business Hours, Perot A request for an activation
                     95% employees should be activated or Systems shall activate
                     or change each of or a change to a user changed within four
                     hours after user account or user ID within four account or
                     user ID shall be receiving a proper request for such
                     business hours after receiving a deemed to be proper if the
                     action. proper request for such action, for at request is
                     submitted through least the percentage of requests set
                     Perot Systems' help desk or forth under the heading Service
                     Level electronic ticketing system Requirement. with the
                     approvals required by the Management Procedures Manual.
                     Password Resets User passwords that have expired or During
                     Normal Business Hours, Perot A request for a password 94%
                     have been suspended should be reset Systems shall reset
                     each user reset shall be deemed to be within 15 minutes
                     after receiving a password that has expired or has been
                     proper if the request is proper request for such action.
                     suspended within 15 minutes after submitted through Perot
                     receiving a proper request for such Systems' help desk or
                     action, for at least the percentage of electronic ticketing
                     system requests set forth under the heading with the
                     approvals required Service Level Requirement. by the
                     Management Procedures Manual. Help Desk Call Calls to the
                     help desk should be During Normal Business Hours, Perot
                     This service level shall be 90% Response Time answered
                     within 30 seconds during Systems shall answer all calls to
                     the measured based upon call Normal Business Hours. help
                     desk within 30 seconds for at reports from CalPX's ACD
                     least the percentage of calls set forth or equivalent
                     system, and under the heading Service Level shall exclude
                     delays in Requirement answering during which recorded
                     messages are being played. Backups Backup procedures for
                     each System Perot Systems shall perform the CaIPX and Perot
                     Systems 96% should be performed as provided in backup
                     procedure for each System as shall establish backup the
                     Management Procedures Manual. provided in the Management
                     procedures and schedules Procedures Manual in at least the
                     within 60 days after the percentage of cases as set forth
                     under Effective Date. the heading Service Level
                     Requirement.

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 CaIPX'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 CaIPX
                     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


       01     A problem shall be Pcrot Systems shall provide uninterrupted
              problem Perot Systems Every hour Yes assigned this isolation and
              determination services. shall resolve or until the severity level
              if (i) Perot Systems shall implement workarounds and provide
              ticket first the majority of users patches immediately after
              testing such items as workarounds reaches at the applicable site
              provided in the Management Procedures Manual. for 98% of all Temp
              Fix, are adversely Perot Systems shall implement hardware and
              problems Resolved or affected, (ii) the software upgrades
              implementing more th h assigned this Closed problem has high
              resolutions during the first available maintenance Severit Level
              status. visibility, and (ii) window after testing of such upgrades
              is hours u there is no opeou workaround completed. available.
              CalPX shall provide on-site support to assist in problem isolation
              and determination activities and Example: A file to test problem
              resolution. server is not available.

       02     A problem shall be Perot Systems shall provide problem isolation
              and Perot Systems Every four Yes assigned this determination
              support on an as needed basis until a shall resolve or hours until
              severity level if (i) workaround is identified. provide the ticket
              the majority of users Perot Systems shall implement a workarounds
              workarounds first reaches at the applicable site immediately after
              it is tested as provided in the for 98% of all Temp Fix, are
              adversely Management Procedures Manual. Perot Systems problems
              Resolved or affected, (ii) the Management rdure an ot Systes
              assigned this Closed problm hashigh shall implement hardware and
              software upgrades Severity Level status. problem has high
              implementing more thorough resolutions during wity 24 visibility,
              and (iii) a the first available maintenance window after within 24
              available, but the testing of such upgrades is completed.
              performance of the CalPX shall provide support to assist in
              problem applicable System is isolation and determination
              activities and to test degraded or the the workaround.
              functionality of the applicable System is materially limited.
              Example: A router is down, however, traffic is rerouted with
              degraded performance.

       03     A problem shall be Perot Systems shall provide problem isolation
              and Perot Systems Twice No assigned this determination support
              during Normal Business shall resolve or weekly until severity
              level if (i) aHours. provide the ticket small percentage of Perot
              Systems shall implement workarounds and workarounds first reaches
              users at the hardware and software upgrades during the first for
              98% of all Temp Fix, applicable site are available maintenance
              window after testing of is problems Resolved or adversely
              affected, completed assigned this Closed and (ii) the problem .
              Severity Level status. has limited visibility.CalPX shall test
              fixes. within five Example: A user is business days. unable to
              establish an application session from his/her machine.


                              Schedule 3.3 - Page 5


              A problem shall be Perot Systems shall provide problem isolation
              and Perot Systems Weekly until No assigned this determination
              support during Normal Business shall resolve or the ticket
              severity level if the Hours. provide first reaches affected
              Systems Perot Systems shall implement workarounds and workarounds
              Tem Fix, be operated without hardware and software upgrades during
              the first for 98% of all Resolved or significant available
              maintenance window after testing is problems Closed limitations on
              completed. assigned tis status. performance or Severity Level
              functionality using a CalPX shall test all fixes. within five
              workaround. 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
              and Perot Systems Twice No assigned this determination support
              during Normal Business shall resolve or monthly Severity Level if
              Hours. provide until the neither the user nor Perot Systems shall
              implement workarounds and workarounds ticket first operation of
              the hardware and software upgrades during the first for 98% of all
              reaches applicable System is available maintenance window after
              testing is problems Temp Fix, materially adversely completed
              assigned this Resolved or affected. .mpte Severity Level Closed
              Eaffecte. AP CaIPX shall test all fixes. within 10 status.
              Example: A PC bsns as connects duplicate business days. sessions
              to one resource.


                              Schedule 3.3 - Page 6



                                 SCHEDULE 4.2
                               Managed Software



Part A - CalPX Proprietary Software

<Table>
<Caption>
           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
</Table>


                              Schedule 4.2 - Page 1



<Table>
                                                                 
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.10.20.0I
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 10OBase-T/9000                                                B.10.20.06
HP-PB 100 Base-T/9000                                               B.10.20.02
HP-PB 10OBase-T/9000                                                B.10.20.09
HP-UX Media Kit                                                        B 10.20
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-                                                 A.1.51 10.20
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
HunmingBird (Exceed/Xpress, Xpress/Host                           1.6 rel 4.25
Hyena                                                                     1.76
Internet Information Server                                                3.0
Internet Information Server                                                2.0
</Table>


                              Schedule 4.2 - Page 2


<Table>
                                                               
Logic Works ER win/ERX                                                     3.0
Logic Works EW 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 SourceSafe                                                6.0
MirrorDisk / UX                                                        B.10.20
Money h++ Win                                                            2.21w
MPWeb 1.1 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
</Table>


                              Schedule 4.2 - Page 3


<Table>
                                                                
RDB                                                                       6.1A
RTR                                                                      3.1-D
Scan Wizard                                                               2.35
Secure Server Certificate                                                  n/a
shmmax +1Gb 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 GlancePlus/US Pak for s800 10.20                          B.10.20.140
Trial HP MeasureWare Server Agent for s800                         B.10.20.140
10.20
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 Wire 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 Composer                                                   1.5
Microsoft Outlook                                                           97
Microsoft Internet Explorer                                                4.0
Microsoft ACCESS Professional Edition                                       98
Microsoft Internet Explorer                                                4.0
Netscape Communicator                                                     4.Ox
Netscape Communicator                                                     4.01
Netscape Communicator                                                     4.04
ORG Plus for windows                                                      3.01
Remedy Action Request System                                               3.2
SeaGate Crystal Reports (Standard)                                         6.0
</Table>


                              Schedule 4.2 - Page 4


<Table>
                                                                
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
B 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 Forns 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
</Table>


                              Schedule 4.2 - Page 5


<Table>
                                                              
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 Solutions for Windows                                        6.0
DocuShare                                                                  2.0
Fidelity Web Station                                                       1.0

OM Software

Block-Forward Secur Back Office                                            4.3
Block Forward ( TBsI( S Tradle Annfication  X3. -                          6.7
Dav Ahead Bidding & Scheduling                                          5.1.16
Hour Ahead Bidding & Scheduling                                         5.1.15
OM Net OMFX (network gatewav)                                            2.2.1
Settlement                                                             5.1.7.1
Trade Annlication                                                       5.1.14
Web (DA     4A)                                                           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 0 Bull (ITOS)                                                1.0
Day Ahead Schedule Difference Checker                                      1.0
Hour Ahead Schedule Difference Checker                                     1.0
</Table>


                              Schedule 4.2 - Page 6


<Table>
                                                                     
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
</Table>


                              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    Domain   Location
                                                                           
Production
ALHDEV171    HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        none         PXPROD   Svr room
ALHDEV172    HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        none         PXPROD   Svr room
ALHPAP107    Digital Priorls    MX6200   NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPAP108    Digital Priorls    MX6200   NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPAP110    Digital Priorls    MX6200   NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room

ALHPAP111    DIgital Prioris    MX6200   NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPAP113    HP Vectra          D4a41    NTW4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPAP180    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP18i    PXPROD   Svr room
ALHPAP181    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAPi80    PXPROD   Svr room
ALHPAP193    HP LPr             D6131A   NTS4 SP4+    1  64M   4G mir PX    PX        none         PXPROD   Svr room
ALHPAPi94    HP LPr             D6131A   NTS4 SP4+    1  64M   4G mir PX    PX        none         PXPROD   Svr room
ALHPAP195    HP LPr             D6131A   NTS4 SP4+    1  64M   4G mir PX    PX        none         PXPROD   Svr room
ALHPAP199    HP LPr             D6131A   NTS4 SP4+    1  64M   4G mir PX    PX        none         PXPROD   Svr room
ALHPAP200    HP'LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP201    PXPROD   Svr room
ALHPAP201    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP200    PXPROD   Svr room
ALHPAP203    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP204    PXPROD   Svr room
ALHPAP204    HP LXr             8000     NTS4.SP4+    1        4G mir PX    PX        ALHPAP203    PXPROD   Svr room
ALHPAP210    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP211    PXPROD   Svr room
ALHPAP211    HP LXr             8000     NTS4 SP4+    1        4G mir PX    PX        ALHPAP21O    PXPROD   Svr room
ALHPAP7532   HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        ALHPAP7533   PXPROD   Svr room
ALHPAP7533   HP LPr             D8131A   NTS4 SP4+    1  64M   4G     PX    PX        ALHPAP7532   PXPROD   Svr room
ALHPAP97                                 NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPAP98                                 NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPSEC2     HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        none         PXOA1    Svr room
ALHPWEB10    HP LPr             06131A   NTS4 SP4+    1  64M   4G     PX    PX        none         PXPROD   Svr room
ALHPWEB11    IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPWEB13    IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPWEB14    IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPWEB17    IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
ALHPWEB25    IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Sw room
BFWDWEB1     HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        BFWDWEB2     PXPROD   Svr room
BFWDWEB2     HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        BFWDWEB1     PXPROD   Svr room
BFWDTWEB     HP LPr             D6131A   NTS4 SP4+    1  64M   4G     PX    PX        none         PXPROD   Svr room
CSIAPAPP2A   IBM PC Server      704      NTS4 SP4+    1  128M         IBM   IBM       none         PXOA     Svr room
CSIAPAPP1A   IBM PC Server      704      NTS4 SP4+    1  128M         IBM   IBM       none         PXOA     Svr room
CSIAPMAIL1A  IBM PC Server      704      NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room


IMSINTRA                                 NTS4 SP4+    1               PX    PX        none         PXPROD   Svr room
</Table>

<Table>
<Caption>

                                        Help     HW      OS      App    OR Hot
Server       Function                   Desk   Support Support Support  Site
                                                      
Production
ALHDEV171    TestlDevelopment            PX    HP      PX       PX
ALHDEV172    TestlDeveloprment           PX    HP      PX       PX
ALHPAP107    MDAS fip server #1          PX    Compaq  PX               Folsom
ALHPAP108    MDAS DBserver #1            PX    Compaq  PX               Folsom
ALHPAP110    MDAS ftp server #2,         PX    Compaq  PX               Folsom
             Psoft Apps
ALHPAP111    MDAS DB server #2           PX    Compaq  PX               Folsom
ALHPAP113    Settlement Ulil Processor   PX    HP      PX               Folsom
ALHPAP180    BDC PXPROD, PEP+            PX    HP      PX       PX      Folsom
ALHPAP181    BDC PXPROD, Settlement      PX    HP      PX       PX      Folsom
ALHPAP193    OM Gateway                  PX    HP      PX       PX      Folsom
ALHPAPi94    OM Gateway                  PX    HP      PX       PX      Folsom
ALHPAP195    OM Gateway                  PX    HP      PX       PX      Folsom
ALHPAP199    WLBS Web Server             PX    HP      PX       PX
ALHPAP200    BDC PXPROD, Buckeye         PX    HP      PX       PX      Folsom
ALHPAP201    BDC PXPROD, Peoptesoft      PX    HP      PX       PX      Folsom
ALHPAP203    BDC PXPROD, SOL7            PX    HP      PX       PX      Folsom
ALHPAP204    PDC PXPROD                  PX    HP      PX       PX      Folsom
ALHPAP210    BDCPXPROD, PXMDAS           PX    HP      PX       PX      Folsom
ALHPAP211    BDC PXPROD, Intranet        PX    HP      PX       PX      Folsom
ALHPAP7532   OM Gateway                  PX    HP      PX       PX      Folsom
ALHPAP7533   WLBS Web Server             PX    HP      PX       PX
ALHPAP97     Buckeye & Book              PX            PX
ALHPAP98     PeopieSoft Fiie Share       PX            PX
ALHPSEC2     PDC in DMZ                  PX    PX      PX
ALHPWEB10    A-Frame DB Server           PX    HP      PX
ALHPWEB11    Ext PRMS Web Server         PX    IBM     PX               Folsom
ALHPWEB13    DayAhead MCP Server         PX    IBM     PX
ALHPWEB14    HourAhead MCP Server        PX    IBM     PX
ALHPWEB17    Settlements Web Server      PX    IBM     PX
ALHPWEB25    Powerbase                   PX    IBM     PX
BFWDWEB1     BF Prod Web Server          PX    HP      PX       PX
BFWDWEB2     BF Prod Web Server          PX    HP      PX       PX
BFWDTWEB     BFTestWebServer             PX    HP      PX       PX
CSIAPAPP2A   PDC PXOA1                   IBM   IBM     IBM      IBM     Folsom
CSIAPAPP1A   BDC PXOAi                   IBM   IBM     IBM      IBM     Folsom
CSIAPMAIL1A  CALPX web site              IBM   IBM      PX


IMSINTRA     Int PRMS Web Server         PX    IBM      PX              Folsom
</Table>

                              Schedule 4.4 - Page 1


<Table>
<Caption>
                                                                        Who   Who
                                           Operating                   Owns Supports   Fallover
Server       Hardware                       System    CPUs RAM   Disk   it     It     Capabilities  Domain     Location
                                                                              
Retired or in non production status?
ALHPAP1      Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP2      Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP3      Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP28     Digital PWS 200i     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP33     Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP27     Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP52     Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP133    Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP134    Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP53     Digital PWS 2001     NTS4 SP4+    1      64M  4.3G  PX     PX  none         PX?        Svr room   OMN Gateway
ALHPAP88     Digital Priori,      NTS4 SP4+    1                            none         PX7        Svr room   PeopleSoft Apps
             MX6200
ALHPAP150                         NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
ALHPAP80                          NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
ALHPAP137                         NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
ALHPAP142                         NTS4 SP4+    1                 PX     PX  none         PX?        Svr room   PEP+ Test
ALHPAP138                         NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
ALHPWEB12                         NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
ALHPAP80     Digital Priori.      NTS4 SP4+    1                 PX     PX  none         PX?        Svr room
             MX6200
ALHPAP74                          NTS4 SP4+    1                 PX     PX  none         PX?        Svr room   MDAS Test
ALHPAP171    HP LPr D6131A        NTS4 SP4+    1      64M  4G    PX     PX  ALHPAP172    PXDEV      Svr room   PDC PXDEV
ALHPAP172    HP LPr D6131A        NTS4 SP4+    1      64M  4G    PX     PX  ALHPAP171    PXDEV      Svr room   BDC PXDEV
ALHPAP109    HP Netserve 6/200    NTS4 SP4+    1                 PX     PX  none         PXPROD     Svr room   master/master
                                                                                                               db sen
</Table>

<Table>
<Caption>

                         Help     HW       OS      App
Server       Function    Desk   Support  Support Support
                                   
Retired or in non production status?
ALHPAP1         PX      Compaq   PX       OM
ALHPAP2         PX      Compaq   PX       OM
ALHPAP3         PX      Compaq   PX       OM
ALHPAP28        PX      Compaq   PX       OM
ALHPAP33        PX      Compaq   PX       OM
ALHPAP27        PX      Compaq   PX       OM
ALHPAP52        PX      Compaq   PX       OM
ALHPAP133       PX      Compaq   PX       OM
ALHPAP134       PX      Compaq   PX       OM
ALHPAP53        PX      Compaq   PX       OM
ALHPAP88        PX      Compaq   PX       OM

ALHPAP150       PX               PX
ALHPAP80        PX               PX
ALHPAP137       PX               PX
ALHPAP142       PX               PX
ALHPAP138       PX               PX
ALHPWEB12       PX               PX
ALHPAP80        PX      Compaq   PX

ALHPAP74        PX               PX
ALHPAP171       PX      HP       PX       PX
ALHPAP172       PX      HP       PX       PX
ALHPAP109       PX      HP       PX
</Table>

                              Schedule 4.4 - Page 2

                        CalPX UNIX System Configuration

Alhambra, CA. UNIX Server Inventory (Tentative)


<Table>
                                        
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

Pepl       HP-UX       HP9000      2.1       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

Setestl    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

Alhpbk5l   HP-UX       HP9000      2.0       213.64    Data Warehouse,
            10.20      Model K460            GB        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    Historical Database, Test
            10.20      Model                 GB        Psoft and Settlements,
                       K460                            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>
                                           
FOLPAP87       HP-UX      HP9000     unknown   unknown    Sybase, Replication
                10.20      K460                            DA/HAJSE

FOLPA1O        HP-UX      HP9000     unknown   unknown    Settlements
                10.20      K260

FOLPA108       HP-UX      HP9000     unknown   unknown    Not used.
                10.20      K260

Hostriame      HP-UX      BP9000     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 above the number of 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 CaIPX 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 I




4.  Remedy Customization/Implementation/Training

    The Remedym software that Perot Systems uses for problem and change
management must be customized to support the CaIPX'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 RemedyTm 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
CaIPX'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: 16 FTE-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 Disasters
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:

    * End user security awareness

    * Physical security issues

    * UserID security issues

    * Password security issues

    * Policies - Expanding the existing policies to cover specific standards for
systems and "User Guides" for use in the End user security awareness program.

    * Auditing - Recommendations for an audit log structure

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

    * Topology - A mapping of systems at CalPX.

    * 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 equipment, software or services.

D.    Fees for Applications Development Services and Business Consulting
      Services

As consideration for the Applications 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 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 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 year 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:                                      $ 159,090 / 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
these 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.

    *  CalPX shall introduce into production the Titan Application (CalPX
       settlements calculation application) on or before May 1, 2000. CalPX
       shall not require support for parallel operation of the Titan Application
       and its existing suite of settlements applications for more than 2
       months. CaIPX shall retire the 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        Monthly
                                                       
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 I



                                  SCHEDULE 5.4

                       CaIPX 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 iclude 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.




                              Schedule 5.4 - Page I



    APPROVALS

    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 CaIPX will not reimburse employees for
insurance from rental agencies, or credit cards offers of other agencies.
Employees should decline insurance coverage 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 CaIPX 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 or 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
       mileage 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 or 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 from the hotel or motel must be
       attached. Meals, tips, telephone, parking or other charges on the hotel
       or 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 I




    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 et se. 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
   first 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 0 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 of 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 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 (Oth) 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 (1O) 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 summary 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
            summary 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 FPA, 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 FPA, 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 48-51 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 FPA.


                             Schedule 7.3 - Page 12






EXHIBIT A


                                  FEE SCHEDULE


       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:

                     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

              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 53-57 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 $ 1 0,000, 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>
     Critical Service              Cure Period         No. of Disruptions in a 6
                                                           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 I