ORIGINAL

                           INDEPENDENT SYSTEM OPERATOR

             SCHEDULING APPLICATIONS, SCHEDULING INFRASTRUCTURE AND
                                BUSINESS SYSTEMS

                                    CONTRACT

                                 No. ISO-97 [ ]



                       SA/SI/BS CONTRACT TABLE OF CONTENTS


                                                            
1.   PARTIES .................................................  1
2.   AGREEMENT  ..............................................  1
3.   DEFINITIONS .............................................  2
4.   INTERPRETATION OF CONTRACT  .............................  7
5.   SCOPE OF WORK  ..........................................  7
6.   WORK  SCHEDULE ..........................................  8
7.   RISK OF LOSS ............................................  9
8.   TITLE ...................................................  9
9.   COMMERCIAL  TERMS ....................................... 10
10.  CONTRACT MODIFICATION  .................................. 19
11.  PROJECT MANAGEMENT   .................................... 20
12.  CODES AND STATUTES  ..................................... 23
13.  SUBCONTRACTORS  ......................................... 23
14.  PROPRIETARY INFORMATION AND MATERIAL   .................. 23
15.  PROPRIETARY RIGHTS AND LICENSES ......................... 25
16.  SOURCE CODE  ............................................ 28
17.  INSPECTION, TESTING AND ACCEPTANCE ...................... 28
18.  WARRANTIES  ............................................. 31
19.  SUPPLIER'S SYSTEM SUPPORT ............................... 34
20.  INFRINGEMENT PROTECTION  ................................ 35
21.  FITNESS FOR DUTY ........................................ 37





                                                            
22.  INDEMNITY ............................................... 37

23.  INSURANCE ............................................... 39

24.  SAFETY NOTIFICATIONS .................................... 40

25.  LIMITATION OF LIABILITY ................................. 43

26.  DISPUTES ................................................ 44

27.  TERMINATION AT WILL ..................................... 46

28.  DEFAULTS AND TERMINATION  FOR CAUSE ..................... 47

29.  WAIVER .................................................. 49

30.  ASSIGNMENT .............................................. 49

31.  CONFLICT OF INTEREST/BUSINESS ETHICS .................... 50

32.  EQUAL OPPORTUNITY LAWS .................................. 51

33.  INJURY AND ILLNESS PREVENTION PROGRAM ................... 53

34.  SEVERABILITY ............................................ 43

35.  NOTICES ................................................. 54

36.  GOVERNING LAW ........................................... 55

37.  SECTION HEADINGS ........................................ 55

38.  SURVIVAL ................................................ 55

39.  ENTIRE AGREEMENT ........................................ 55

40.  REPRESENTATIONS ......................................... 55

Annex A:    Form of Guaranty
Annex B:    Customized Software and Recoupment Fees
Annex C:    Supplier Rates
Annex D:    Form of Letter of Credit
Annex E:    Software Maintenance Agreements
Annex F:    WSCC  Subregion Map


                                       ii





Annex G:     Third Party Software Licenses
Annex H:     Potential Conflicts of Interest
Annex I:     Purchaser's Equal Opportunity Purchasing Program Policy
Annex J:     Policy Regarding Small Business Concerns and Small Disadvantaged
             Business Concerns
Annex K:     Injury and Illness Prevention Program Compliance Certificate
Annex L:     Stage I DSOWs
             Volume I: Common   Sections
             Volume II: Scheduling Infrastructure
             Volume III: Scheduling Applications
             Volume IV:  Business Systems




THIS CONTRACT MADE as this 14th day of March, 1997, consists of the terms and
conditions by which the Parties to the Contract, identified herein, agree to be
bound:

       WHEREAS, pursuant to the transition to a competitive electric market in
the State of California, the Independent System Operator Restructuring Trust
issued on December 17, 1996 a Request for Proposals to supply computer hardware
and software systems to provide for the ISO's scheduling and business (e.g.,
billings and settlements) functions (hereinafter "RFP");

      WHEREAS, ABB Power T&D Company Inc. ("ABB") and Perot Systems Corporation
("Perot Systems") will form ISO Alliance, LLC as a Delaware limited liability
company with no independent employees or assets for the purpose of performing
through subcontracts between ABB and Perot Systems the Contract;

       WHEREAS, as an inducement to the Independent System Operator
Restructuring Trust to enter into the Contract with the ISO Alliance, ABB and
Perot Systems have agreed to guaranty ISO Alliance's performance and obligations
under the Contract (the "Guaranties"), and have thereby executed such Guaranties
as are mutually agreeable to the Parties and the form of such Guaranties is
attached in Annex A;

NOW, THEREFORE, the Parties, as identified herein, have agreed as follows:

1.    PARTIES

       1.1     The Parties to the Contract are ISO Alliance, LLC, a Delaware
               limited liability company ("Supplier"), and Independent System
               Operator Restructuring Trust, established pursuant to the
               ISO Trust Agreement (enabled by the Funding Decision, CPUC
               Decision 96-10-044 (October 25, 1996)) ("Purchaser").

2.   AGREEMENT

2.1  In consideration of the not-to-exceed Contract Price of $48,991,000 to be
paid as specified in this Section, and subject to changes pursuant to Section
10, Section 9, and other obligations to be performed by Purchaser as specified
herein. Supplier shall perform the Work and its other obligations as specified
herein. In consideration for Stage I Work Supplier shall be paid a fixed price,
subject to changes as provided in the Contract, of $45,559,767 (the "Stage I
Fixed Price"). Stage II Work is to be performed on a price, subject to changes
as provided in the Contract, to be negotiated upon approval of the Stage II
DSOWs but in any event for a price not to exceed $3,431,233 (the "Stage II
Guaranteed Maximum Price"). Reference to "the Contract Price"




shall be read to include the Stage I Fixed Price and the Stage II Guaranteed
Maximum Price unless the context unambiguously indicates otherwise.

3.   DEFINITIONS

      When used herein with initial capitalizations, whether in the singular or
      in the plural, the following terms shall have the following meanings:

      3.1      Acceptance or Accepted: When all of the conditions of acceptance
               have been met, as set forth in Section 17 hereof.

      3.2      Acceptance Test Procedure ("ATP"): Documents, prepared by
               Supplier and approved by Purchaser, which designate the specific
               objective tests and inspections to be performed on Subsystems and
               the System, as appropriate, to determine its conformance with the
               Detailed Statements of Work ("DSOWs") and the Contract prior to
               acceptance by Purchaser.

      3.3      Authorized Users: The employees, contractors, consultants and
               System Users who are authorized, or whom the Purchaser is
               permitted to authorize, to use the Licensed Software as provided
               in the Contract.

      3.4      Availability Test: Test for operational availability as specified
               in the DSOWs.

      3.5     Backup Unit: The hardware, computers, processors, firmware.
              Documentation, Licensed Software, and interconnecting cables
              and other incidental equipment as specified in the DSOWs and
              located at Alhambra, California ISO site which are intended as the
              backup unit to the Primary unit for the day-to-day operation of
              the System.

      3.6      Change Order: Document issued by Purchaser, and agreed to by
               Supplier, which amends the Contract pursuant to Section 10.

      3.7      Contract: This document of agreement, together with the DSOWs and
               other attachments and documents expressly incorporated herein by
               reference.

      3.8      Contract Date: The date set forth below as the date the Parties
               have executed the Contract.

      3.9      Contract Modification: Amendments to the Contract which modify
               (i) the Contract Price, (ii) Supplier performance milestones,
               (iii) Purchaser delivery obligations, (iv) Stage I or Stage II
               completion dates, or (v) required System functionality.



      3.10     Contract Price: The aggregate sum to be paid hereunder by
               Purchaser to Supplier, including the amount of any increase or
               decrease provided for in any Change Orders.

      3.11     Customized Software: All computer programs, code, procedures,
               rules or routines in Source or Object Code, and all supporting
               documentation identified in Annex B, as updated from time to
               time, which are unique to Purchaser's System, and which perform
               certain specialized functions and which embody Purchaser's
               Confidential Material, including Derivative Works, Upgrades,
               Enhancements and Error Corrections thereto.

      3.12     Derivative Work: A revision, modification, translation,
               abridgement, condensation, expansion, improvement, enhancement,
               upgrade, error corrections or adaptation into other operating
               systems, or other manipulation of the Licensed software which if
               created without the permission of the owner would infringe on the
               owner's rights.

      3.13     Detailed Statement(s) of Work ("DSOWfsV): A functional
               specification or description of the System and the Work, agreed
               to by the Parties, to be performed under Stage I or Stage II of
               the Contract. Stage I DSOWs are attached in Annex L hereto.

      3.14     Developmental Unit: The hardware, computers, processors,
               firmware, Documentation, Licensed Software, and interconnecting
               cables and other incidental equipment which are intended to be
               used for the development and testing of the Subsystems and the
               System.

      3.15     Documentation: Drawings, procedures, instructions, reports,
               manuals, Licensed Software documentation, test data, test
               scripts, simulation programs and other data, furnished by
               Supplier pursuant to the Contract.

      3.16     Enhancements: Any addition or modification to the Licensed
               Software that adds new features or functionality or improves the
               Licensed Software's performance.

      3.17     Error Corrections: Any addition or modification to the Licensed
               Software or Documentation that corrects an error, reestablishes
               conformity of the Licensed Software to the DSOWs or restores
               proper operation of the Licensed Software.

      3.18     Field Technical Services: Additional technical services furnished
               by Supplier at the Jobsite or System Premises, as appropriate,
               such as technical support during installation and acceptance
               testing.




      3.19     Funding Decision: California Public Utilities Commission ("CPUC")
               Decision 96-08-038 (August 2, 1996) as modified by CPUC Decision
               96-10-044 (October 25, 1996), as that decision may be modified or
               superseded. This decision among other things provides for funding
               of the Work pending establishment of, and assumption of such
               funding by, the Independent System Operator, and enables a
               Trustee, a trust advisory committee and independent technical
               advisors to have oversight over the Work and payments for such
               Work.

      3.20     Future Developments: All software, concepts, methods, techniques,
               designs, processes and ideas, or other components developed
               specifically for Purchaser by Supplier but not included in the
               DSOW.

      3.21     Independent System Operator ("ISO"): A corporation, to be formed,
               which will operate the California interconnected electric
               transmission system as contemplated in the Restructuring
               Decision, and, through the Trust, for which the Work is being
               performed and the System is being developed.

      3.22     Integrated System Tests ("1ST"): Specific objective tests
               prepared by Supplier and approved by Purchaser conducted to
               demonstrate conformance with the DSOWs and the Contract prior to
               the Operational Dry Run

      3.23     Intellectual Property Rights: Any patent, copyright, trademark,
               service mark (and any application or registration respecting the
               foregoing), trade secret, and other intellectual property right
               of any type.

      3.24     Jobsites: The locations of the facilities for the development and
               deployment of the System as set forth in the DSOWs.

      3.25     Licensed Software: All computer programs, code (including Object
               Code, and to the extent specified in the DSOWs, Source Code),
               procedures, formats, templates, rules or routines, and all
               supporting Documentation provided by Supplier to the Purchaser
               for use in connection with the System, pursuant to the DSOWs,
               including all Derivative Works, Upgrades, Enhancements, Error
               Corrections, and Customized Software.

      3.26     Major Subcontractors: ABB Power T&D Company Inc. ("ABB") and
               Perot Systems Corporation ("Perot Systems") and other
               Subcontractors that may be added in the future upon mutual
               agreement of the Parties.

      3.27     Object Code: The form of a computer program resulting from the
               translation or processing of Source Code by a computer into
               machine language or intermediate code, which is not convenient to
               human understanding of the pro-

4



               gram logic, but which is appropriate for execution or
               interpretation by a computer.

      3.28     Operational Dry Run: Specific objective tests prepared by
               Supplier and approved by Purchaser, and conducted by Purchaser
               with the assistance of Supplier on the System installed at the
               Jobsite or System Premises, as appropriate, to demonstrate System
               conformance with the DSOWs and the Contract.

      3.29     Party or Parties: A party or the parties to the Contract.

      3.30     Primary Unit: The hardware, computers, processors, firmware.
               Documentation, Licensed Software, and interconnecting cables and
               other incidental equipment as specified in the DSOWs located at
               Folsom, California ISO site which are intended as the primary
               unit for day-to-day operation of the System.

      3.31     Purchaser: The Party so identified in Section 1 or, if assigned
               to another person or entity, the then current assignee.

      3.32     Purchaser's Representative f'PR"): The person or entity
               designated by notice given to Supplier by Purchaser as being
               authorized to act on behalf of Purchaser for the purpose of the
               Contract, subject to any limitations specified in such notice,
               and identified at Section 35.

      3.33     Restructuring Decisions: CPUC Decision 95-12-063 (December 20,
               1995) as modified by D.96-01-009 (January 10, 1996), in Dockets
               Nos. R.94-04-031 and 1.94-04-032, as those decisions may be
               subsequently modified or superseded.

      3.34     Source Code: The set of instructions expressed in a non-machine
               language from which the Object Code is derived.

      3.35     Subcontractor: An entity contracting directly with Supplier,
               including but not limited to Major Subcontractors, to furnish any
               part of the Work including materials or services, or an entity
               contracting with Supplier's subcontractors of any tier to furnish
               any part of the Work including materials or services.

      3.36     Subsystem: A computer system comprising part of the System which
               performs a specific function described in the DSOWs, and is
               agreed to be inspected or tested independently under the
               Acceptance Test Procedures

      3.37     Supplier's Representative ("SR"): The person or entity designated
               by notice given to Purchaser by Supplier as being authorized to
               act on behalf of Suppli-




               er for the purposes of the Contract, subject to any limitations
               specified in each notice, and identified at Section 35.

      3.38     Supplier Rates: The rates charged by a Major Subcontractor for
               work comparable to me Work, and if no comparable rate exists,
               such Major Subcontractor's standard rate for similar services as
               set forth in Annex C. Such rates are those rates charged between
               the Major Subcontractors.

      3.39     System: The integrated computer system or systems, including and
               consisting of hardware, computers, processors, firmware.
               Documentation, Licensed Software, and interconnecting cables and
               other incidental equipment, which perform the functions described
               in the DSOWs and include the Primary Unit and Backup Unit.

      3.40     System Premises: The locations of the facilities where the System
               is installed. :

      3.41     System User: Any person, legal or natural, that uses the System
               for its intended purposes, including but not limited to the use
               in connection with the marketing, procurement and transmission of
               electricity, and ancillary services.

      3.42     Trust: The trust established pursuant to the Funding Decision to
               manage funds for development of the infrastructure of the ISO.

      3.43     Trustee: The trustee or trustees of the Trust.

      3.44     Uncontrollable "Force: Causes beyond the reasonable control of a
               Party including but not limited to: flood, fire, lightning,
               earthquake, unusually severe weather, unavailability of
               materials, epidemic, quarantine restriction, war, sabotage, act
               of a public enemy, insurrection, riot, civil disturbance, strike,
               restraint by court order or public authority and action or
               non-action by or inability to obtain authorization or approval
               from, any governmental agency or authority, which by the exercise
               of due diligence and foresight such Party could not avoid and
               which by exercise of due diligence such Party is unable to
               overcome.

      3.45     Upgrades: Any modifications, revisions or additions to the
               Licensed Software that support new versions or releases of the
               platforms, hardware, operating systems or applications, on or
               with which the Licensed Software is designed to operate.

      3.46     Work: The engineering, analysis, design, development,
               manufacture, assembly, inspection, testing, shipment,
               installation, integration, creation of Docu-




               mentation, training, and all other tasks and obligations
               of Supplier to be performed or furnished as required by the
               Contract.

      3.47     Work Schedule: A chronological listing of significant events and
               milestones in the performance of the Work contained in the DSOW,
               including delivery and testing of the System as agreed to by the
               Parties.

4.   INTERPRETATION OF CONTRACT

      4.1      In the event of conflicting provisions within the Contract, the
               provisions shall govern in the following order: (i) Change Orders
               from the most recent to the earliest, (ii) this document of
               agreement, and (iii) the DSOWs. In addition, the SA/SI/BS RFP and
               Supplier's response are hereby incorporated into the Contract to
               be used solely for interpretation purposes in the following
               manner: Supplier reservations in their response to the SA/SI/BS
               RFP expressly included in the DSOWs shall prevail over the
               SA/SI/BS RFP, whereas for Supplier reservations to the SA/SI/BS
               RFP, not expressly retained in the DSOWs, the SA/SI/BS RFP shall
               prevail. Each party shall notify the other immediately upon the
               determination of the existence of any conflict.

      4.2      The Contract requirements will be interpreted reasonably and,
               except where an express term or the context otherwise requires,
               with due consideration given to the materiality of any minor
               deviation from a particular requirement.

5.   SCOPE OF WORK

      5.1      Supplier shall perform the work and tender the deliverables
               described in the DSOWs (Volumes II, III, and IV will be completed
               by the Parties within one week following execution of the
               Contract). Stage II DSOWs shall be developed and agreed to by
               Supplier and Purchaser in conformance with the Stage I DSOWs. If
               Purchaser and Supplier are unable to reach mutual agreement on
               the Stage II DSOWs by the date specified in the DSOWs, and any
               equitable adjustments relating thereto. Purchaser may either (i)
               re-compete the Stage II Work, or (ii) engage Supplier to provide
               the full System functionality as provided by the Contract.

      5.2      This Contract is intended to include all requirements necessary
               to perform the Work and to furnish the System in good working
               order, performing all functions as specified in the DSOWs. Unless
               expressly excluded in a DSOW or the Contract, any and all
               equipment, labor, material and services not specified therein but
               which are reasonably implied from the DSOWs and are reasonably
               necessary to provide such a System shall be within the scope of
               the DSOW and shall be furnished by Supplier for the Contract
               Price.




6.   WORK SCHEDULE

      6.1      Supplier shall complete the Work and deliver the System and
               Documentation as shown in the Work Schedule as set forth in the
               DSOWs. Meeting these dates is essential to the operating schedule
               of the facilities for which the System is to be furnished. Time
               is therefore of the essence. The parties agree that completion of
               each stage of the System pursuant to the Work Schedule is a
               material obligation of the Contract.

      6.2      If any milestone or deadline in the Work Schedule is not met or
               it is reasonably certain that it will not be met due to causes
               other than (i) Uncontrollable Forces or (ii) Purchaser's failure
               to meet Purchaser's delivery obligations as specified in Section
               9.2.3, and such delayed dates would be reasonably expected to
               adversely affect the completion of the System in accord with the
               Work Schedule, Supplier shall, at its own expense, take whatever
               measures may be required (including but not limited to, adding
               employees or consultants, shifts, and overtime) to bring the Work
               back on schedule.

      6.3      Uncontrollable Forces:

               6.3.1    Supplier shall not be liable to Purchaser for delay or
                        inability of Supplier to perform the Work, due to
                        Uncontrollable Forces; provided that Supplier (i)
                        promptly notifies Purchaser in writing of the nature,
                        cause, date of commencement, and expected duration of
                        such delay or inability, and (ii) has exercised due
                        diligence to meet the Work Schedule. In such event.
                        Purchaser shall either (a) extend the Work Schedule for
                        a period of time consistent with the period of such
                        delay, without any change in the Contract Price, or (b)
                        direct by a Change Order that subsequent Work be
                        accelerated in order to meet the Work Schedule.

               6.3.2    Purchaser shall not be in default in the performance of
                        its obligations under the Contract (other than
                        obligations to pay monies pursuant to the Contract for
                        Work performed and Accepted or Work performed and
                        thereafter Accepted), if Purchaser's delay or inability
                        to perform is due to Uncontrollable Forces.

                        6.3.3  The following delays shall in no event constitute
                               Uncontrollable Forces in performance by Supplier
                               and shall not constitute a reason for extending
                               the date for performance of the Work:

                               (a)    Delays by Subcontractors not caused by
                                      Uncontrollable Forces;



                               (b)    Delays in approval by Purchaser due to
                                      Documentation or approval schedules not in
                                      accordance with the DSOWs; and

                               (c)    Delays caused by Supplier's lack of
                                      sufficient personnel with necessary
                                      technical skills.

      6.4      Upon request by Supplier, Purchaser will provide reasonable
               access to ISO controlled premises including access outside ISO's
               published working hours and on ISO's observed holidays to the
               extent necessary for Supplier to deliver the System and
               Documentation on the dates set forth in the Work Schedule.

      6.5      Supplier's performance hereunder is contingent upon Purchaser's
               delivery obligations specified in Section 9.2.3. In the event
               delays in Supplier's performance occur as a result of Purchaser's
               failure or untimely performance of such Purchaser delivery
               obligations, the Contract, the Contract Price, or the Work
               Schedule, as appropriate, shall be equitably adjusted to reflect
               such delay in a Change Order and Supplier shall not incur any
               liability to Purchaser or any other person as the result of such
               delay. Subject to the foregoing, (i) the Purchaser shall promptly
               notify Supplier when the required performance of such Purchaser
               delivery obligation will be fulfilled and use its best efforts to
               fulfill such delivery obligation, and (ii) the Parties will use
               their best efforts in good faith to work around the deficiency
               and continue me Work.

7.   RISK OF LOSS

      7.1      Risk of loss of or damage to each Subsystem shall pass from
               Supplier to Purchaser upon delivery of that Subsystem to the
               System Premises.

8.   TITLE

      8.1      Title to System hardware shall pass to Purchaser upon payment for
               that hardware by Purchaser. The license(s) granted to Purchaser
               as provided in Section 15 shall be effective upon final payment
               of all amounts due and payable under the Contract upon Acceptance
               or pursuant to the Termination at Will provisions of Section 27
               or the Defaults and Termination for Cause provisions of Section
               29.

      8.2      Except for Availability Test data, title to test data developed
               by Supplier or its Subcontractor and input or output received
               through operation of the System or Subsystems during such testing
               shall remain with Supplier, provided that Supplier shall provide
               a copy of all such test data to Purchaser. Otherwise, title to
               all data and information input into the System and to all




               data and information output received through the operation
               of the System shall remain with Purchaser.

      8.3      Passage of title to the System shall be free and clear of all
               liens and encumbrances (other than restrictions relating to
               Licensed Software).

9.   COMMERCIAL TERMS

      9.1      Invoices:

               9.1.1   For progress or partial shipment payments when so stated
                       in the Contract: The invoice for each progress payment
                       listed in Section 9.2.1 below shall be submitted to the
                       Purchaser following completion of the corresponding
                       Supplier performance milestone.

               9.1.2   Final payment:

                        9.1.2.1      Stage I: The invoice for the final payment
                                     for Stage I shall be submitted to Purchaser
                                     when all of the items of the System for
                                     Stage I have been received at the Jobsite
                                     or System Premises, as appropriate, and the
                                     System for Stage I has been Accepted
                                     pursuant to Section 17 hereof.

                        9.1.2.2      Stage II: The invoice for the final payment
                                     for Stage II shall be submitted to
                                     Purchaser when all of the items of the
                                     System for Stage II have been received at
                                     the Jobsite or System Premises, as
                                     appropriate, and the System for Stage II
                                     has been Accepted pursuant to Section 17
                                     hereof.

      9.2      Payment:

               9.2.1   Supplier performance milestones are set forth in Section
                       9.2.2 below. Progress payments shall become due following
                       completion of each Supplier performance milestone without
                       regard for the completion date scheduled for each such
                       Supplier performance milestone. When a Contract
                       Modification is approved pursuant to Section 10, the
                       Contract Price and the remaining Supplier performance
                       milestones and Supplier performance milestone payments as
                       specified in Section 9.2.2, and Purchaser's delivery
                       obligations as specified in Section 9.2.3, shall be
                       adjusted as appropriate. Following completion of each
                       Supplier performance milestone. Purchaser shall pay
                       Supplier the relevant milestone payment within thirty
                       days

10



                       of receipt of a correct invoice therefor. Late payments
                       shall bear interest at the lesser of (i) of two
                       percentage (2%) points above the reference rate charged
                       by the Bank of America, NT&SA, San Francisco, California,
                       on the first day of each month for that month or portion
                       thereof, or (ii) the highest rate allowed by law.

               9.2.2   Supplier Performance Milestones: The Supplier performance
                       milestones and the percent of the Contract Price to be
                       paid upon completion of each such supplier performance
                       milestone shall be as follows (hereinafter "Supplier
                       Performance Milestones"):

                    Stage I - Supplier Performance Milestones

                     Supplier Performance Milestone Schedule



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               Stage II Supplier Performance Milestones: To be established in
               Stage II DSOWs

9.2.3   Purchaser Delivery Obligations: The Purchaser delivery obligations
        required for Supplier completion of Supplier Purchaser performance
        milestones shall be as follows (hereinafter "Purchaser Delivery
        Obligations"):

15



                    Stage I - Purchaser Delivery Obligations
                        Purchaser's Delivery Obligations



                                                                      Schedule
                                                                   
Provide resource scheduling data                                      3/22/97
Provide WSS  model                                                    3/22/97

Provide registered TCP/IP and domain name addresses for               4/30/97
ISO

Provide folly functional development site capable of housing          4/1/97
100+ developers

Computer room at primary site, linked to WEnet, and ready to          4/ /97
support production equipment

WEnet POP  available at Hayward, CA                                   4/ /97

Finalize settlement definition (supplier provide proposal by          4/15/97
4/15/97)

Finalize billing/credit definition (supplier provide proposal by      4/15/97
4/15/97)

Provide fully functional physical primary location for equip-         4/ /97
ment shipment and installation purposes

Computer room at backup site completed, linked to WEnet,              5/ /97
and ready to support production equipment

WEnet  POP  available at Dominguez Hills, Ca.                         5/1/97
Provide fully functional physical backup site location                5/ /97
Provide all FERC/CPUC  reporting requirements                         7/15/97
ISO staff available to commence training                              8/20/97
Finalize (i.e., freeze) power system model                            7/15/97
ISO operational policies and procedures in place                      9/1/97

ISO staff, non-Alliance provided equipment and systems (with          10/1/97
appropriate interfaces) ready to support operational dry run

Start operational dry run                                             10/1/97



                                          16



               Stage II - Purchaser Delivery Obligations: To be established
               in Stage II DSOWs

9.2.4   In the event the System or Documentation, or portion thereof, does not
        conform to the requirements of the Contract, a portion of the progress
        payment specified for the applicable Supplier performance milestone or
        the final payment may be withheld until such nonconformance is
        corrected.

9.2.5   Purchaser will provide a Letter of Credit, in the form attached as Annex
        D, at the Bank of America, San Francisco, California, for the benefit of
        Supplier that will provide assurance of payment of the milestones as
        achieved. Following payment of the final Stage I Supplier Performance
        Milestone as set forth in Section 9.2.2 above. Purchaser shall renew the
        Letter of Credit at an amount not Co exceed the then
Taxes:  existing largest remaining Stage II Supplier Performance Milestone as
        then set forth in Section 9.2.2 above.

9.3.1   Purchaser shall pay the sales, use, personal property and other taxes
        applicable to the Work or System, except franchise taxes and taxes
        levied upon Supplier's income which shall be paid by Supplier. The
        Parties shall cooperate with each other to minimize any applicable tax,
        to the extent permitted by law and, in connection therewith, each Party
        shall provide the other Party with any resale certificates, information
        regarding the use of materials, services or sales or other exemption
        certificates or information reasonably requested by the other Party.

9.3.2   Supplier shall identify separately on invoices (i) the non-taxable
        portion of the Contract Price and the reason therefor, and (ii) the
        taxable portion of the Contract Price and the applicable taxes. Supplier
        shall provide supporting data as may be requested by Purchaser.

9.3.3   Field Technical Services: For payment for additional technical services
        by Supplier at the Jobsite or System Premises, as appropriate, such as
        technical support during installation and acceptance ("Field Technical
        Services") not included in the Contract Price:

9.3.4   Purchaser shall pay Supplier at Supplier Rates for Field Technical
        Services approved by Purchaser which are not included in the Contract
        Price based on actual time spent at Jobsites or System Premises, as
        appropriate, in the performance of such services, provided that Supplier
        shall have the right to establish a minimum per- call charge for on-site
        Field Technical Services.


17



        9.3.5  Purchaser shall reimburse Supplier for local travel and living
               expenses while at Jobsites or System Premises, as appropriate,
               performing Field Technical Services based on actual cost plus an
               administrative surcharge of fifteen percent (15%) and for air
               travel to and from Jobsites or System Premises, as appropriate,
               at the lesser of published coach/economy class rates or actual
               costs.

        9.3.6  Supplier shall submit to the PR for approval on a weekly basis
               timesheets setting forth the actual hours worked in the
               performance of the Field Technical Services.

        9.3.7  At the end of each month or upon completion of the work,
               whichever occurs first. Supplier shall submit its invoice listing
               the name of the persons, dates and hours worked and applicable
               rates, including per diem and air travel charges for Field
               Technical Services performed during that period.

        9.3.8  Purchaser shall pay correct invoices for Field Technical Services
               within thirty (30) days after receipt less any unsubstantiated or
               incorrect charges. Late payments shall be at the lesser of (i) an
               interest charge of two percentage (2%) points above the reference
               rate charged by the Bank of America, NT&SA, San Francisco,
               California, on the first day of each month for that month or
               portion thereof, or (ii) the highest rate allowed by law.

        9.3.9  Recoupment of deductions for unsubstantiated or incorrect charges
               and retention for Field Technical Services shall be invoiced
               separately, providing substantiating or correcting information.

        9.3.10 Supplier shall provide notice of the event and attending
               circumstances that may give rise to a claim for an equitable
               adjustment within thirty (30) calendar days after the event which
               gave rise to such claim becomes known to Supplier. Failure to
               give such notice shall result in Supplier's waiver of such claim
               for additional compensation. Supplier's acceptance of final
               payment shall constitute its waiver of all such claims under the
               Contract.

9.4     Software Maintenance Agreements:

        9.4.1  Supplier has agreed to enter into, or to use its best efforts to
               cause applicable third parties, including but not limited to
               Major Subcontractors and Subcontractors (except that Supplier
               shall cause Ernst & Young LLP, a Subcontractor to Supplier
               through ABB), to enter into, certain Software Maintenance
               Agreements attached as Annex E


18



        and to provide certain services as specified therein, which are to
        become effective following the warranty period. The price for these
        services will be payable to Supplier or appropriate third parties, as
        applicable, upon the signing of this Contract or as otherwise agreed
        by the Parties.

9.5     Royalties or other charges for any Intellectual Property Rights
        necessary to grant the license conveyed in the Contract (directly or by
        implication) shall be considered as included in the Contract Price.

10.  CONTRACT MODIFICATION

        10.1   Generally: Contract Modifications shall be made only by mutual
               agreement of the Parties. To be valid, such modification shall be
               set forth in a Change Order amending the Contract that is issued
               and executed as set forth in this Section 10. All Contract
               Modifications shall be communicated through the SR and the PR.
               Each Party shall promptly comply with each Contract Modification
               executed in accordance with this Section and evidence its
               acceptance of all of the provisions contained therein by promptly
               returning the acceptance copy of each Contract Modification to
               the other Party.

        10.2   Purchaser Initiated Contract Modification: Upon receipt of a
               request for a Contract Modification from Purchaser, Supplier
               shall, within five (5) business days unless the parties otherwise
               agree, submit to Purchaser in writing (i) the effect, if any, on
               Supplier Performance Milestones and Purchaser Delivery
               Obligations, (ii) the requisite mitigating actions, if required,
               to ensure System operation by, the dates specified in the
               Contract, (iii) an assessment of the impact of the Contract
               Modification on the spare parts, training, testing, Documentation
               work hours by type of labor, rates, material and Subcontract
               costs and Work Schedule requirements, and (iv) the adjustment to
               the Contract Price of the requested Contract Modification or
               notification as to when such information and such adjustment to
               the Contract Price shall be provided by Supplier. Within five (5)
               business days after receiving such information and such
               adjustment to the Contract Price for the requested Contract
               Modification, Purchaser shall approve, reject or withdraw the
               request for such Contract Modification. Failure by Purchaser to
               respond within this five (5) day period shall be deemed a
               rejection of such Contract Modification.

       10.3    Supplier Initiated Contract Modifications: Upon submitting a
               request for a Contract Modification, Supplier shall provide to
               Purchaser in writing (i) the effect, if any, on Supplier
               Performance Milestones and Purchaser Delivery Obligations, (ii)
               the requisite mitigating actions, if required, to ensure System
               operation by the dates specified in the Contract, (iii) an
               assessment of the impact of the Contract Modification on the
               spare parts, training, testing,

                                     19



               Documentation work hours by type of labor, rates, material and
               Subcontract costs and Work Schedule requirements, and (iv) the
               adjustment to the Contract Price of the requested Contract
               Modification or notification as to when such information and such
               adjustment to the Contract Price shall be provided by Supplier.
               Within five (5) business days after receiving such information
               and such adjustment to the Contract Price for the requested
               Contracted Modification, Purchaser shall approve or reject the
               requested Contract Modification. Failure by Purchaser to respond
               within this five (5) day period shall be deemed a rejection of
               such Contract Modification.

        10.4   Implementation: Supplier shall not implement a Contract
               Modification, or submit an invoice for the resulting price
               change, until the authorizing Change Order has been issued by
               Purchaser and accepted by Supplier and has been executed by both
               Parties.

        10.5   Changes:

               10.5.1  In the event Supplier's cost of performance of the Work
                       or the time required for the Work is increased by (i) a
                       change in the Work directed by PR, (ii) Purchaser's
                       breach of a Purchaser Delivery Obligation under the
                       Contract, or (iii) Uncontrollable Force, an equitable
                       adjustment shall be made in the Contract Price and, if
                       appropriate, in the Work Schedule. The equitable
                       adjustment or change of schedule shall be presented to
                       Purchaser in a proposed Contract Modification or a claim,
                       provided, that Supplier has promptly notified Purchaser
                       that Supplier considers that such change, breach or
                       Uncontrollable Force event will cause such adjustment or
                       change.

               10.5.2  Supplier shall present the Proposed Contract Modification
                       or the claim within thirty (30) calendar days after the
                       event which gave rise to such modification or claim
                       become known to Supplier. Failure to give such notice
                       shall result in Supplier's waiver of such claim for
                       additional compensation. Supplier's acceptance of final
                       payment shall constitute waiver of all such claims under
                       the Contract.

11.  PROJECT MANAGEMENT

       11.1    PR: The PR shall manage Purchaser's activities associated with
               the Contract. Any correspondence to Purchaser of a technical or
               administrative nature shall be addressed to the attention of the
               PR as provided in Section 36 and shall be identified by the
               Contract number.

20




11.2    SR: The SR shall have overall responsibility for directing the Work. Any
        correspondence to Supplier of a technical or administrative nature shall
        be addressed to the attention of the SR as provided in Section 36 and
        shall be identified by Contract number.

11.3    Reports: Within thirty (30) days after execution of the Contract,
        Supplier shall furnish to the PR the current status of the events in the
        Work Schedule. Thereafter, Supplier shall furnish every month to the PR
        a status report showing the actual status of the Work and each Supplier
        performance milestone. If actual completion of Supplier's performance
        milestones lag such scheduled dates, an explanation shall accompany the
        status report stating the problem area, measures taken, and that will be
        taken, to eliminate the problem, and a good faith estimate of whether or
        when the item will be back on schedule. Notwithstanding the foregoing,
        the PR shall be notified immediately of any potential problem situations
        which may affect the timely completion of any of the Supplier
        Performance Milestones specified in Section 9.2.2.

        11.3.1 In the event Supplier reports made pursuant to this Section 11.3
               indicate Supplier's performance milestones as specified in
               Section 9.2.2 and Work Schedule may not be met. Supplier shall
               upon request by Purchaser review allocation of Supplier's
               resources and take necessary action, including the assignment or
               hiring of additional employees, or the retention of additional
               Subcontractors. If, in the opinion of Supplier, the need for such
               action is due to Purchaser's failure to meet Purchaser Delivery
               Obligations as specified in Section 9.2.3, Supplier shall submit
               a Change Order seeking equitable adjustment within five (5) days
               of undertaking such corrective action unless the Parties
               otherwise agree.

        11.3.2 In the event Purchaser anticipates that a Purchaser delivery
               obligation may not be met. Purchaser shall timely notify Supplier
               of the problem area, the measures Purchaser is taking, or will
               take, to provide such Purchaser delivery obligation, and a good
               faith estimate of whether or when such Purchaser delivery
               obligation will be provided to Supplier. Notwithstanding the
               foregoing, the SR shall be notified immediately of any potential
               problem situations which may affect the ability of Purchaser to
               provide any of the Purchaser Delivery Obligations specified in
               Section 9.2.3.

11.4    Records Access: Purchaser, the PR and their agents shall have the right
        of access to Supplier's and any Major Subcontractor's facilities and
        non-financial records directly relating to the Work upon reasonable
        notice and during normal working hours to verify conformance to the Work
        Schedule and inspect the Work.

21



11.5    Compliance: PR's approval of any interim or partial Documentation or
        data submittals shall not relieve Supplier from compliance with all the
        requirements of the Contract.

11.6    Executive Committee:

        (a)    The SR will organize and maintain the minutes of, and the PR and
               SR will alternately chair, an Executive Committee, the principal
               activities of which will be to review the current status of the
               Work, including Supplier's progress toward and completion of its
               performance milestones, and to resolve any outstanding issues
               escalated by the PR and SR.

        (b)    The members of the Executive Committee shall include the PR, the
               SR, the senior technical manager having responsibility for the
               System of each of Purchaser and Supplier, an officer or relevant
               executive of Purchaser, Supplier and each Major Subcontractor,
               and such other persons as the PR or SR deems appropriate. Each
               Party shall cause its appointees to the Executive Committee to
               devote such time and attention to the activities of the Committee
               as may be reasonably necessary to fulfill its responsibilities.
               If an appointee ceases to serve on the Executive Committee for
               any reason, a replacement member of equivalent responsibility
               will be appointed as soon as practicable by the applicable Party.

        (c)    The Executive Committee shall meet as often as necessary, but not
               less than bi-weekly by telephone, and once per month in person.
               At each meeting, the Executive Committee shall review, among
               other things, (i) Supplier's conformance to the Work Schedule,
               including but not limited to Supplier's progress toward and
               timely completion of its performance milestones, (ii) Purchaser's
               conformance to the Work Schedule, including but not limited to
               Purchaser's progress toward and timely completion of its delivery
               obligations, (iii) Supplier's current staffing levels and any
               anticipated requirements for additional staffing, (iv) Supplier's
               anticipated requirements for access to Purchaser's personnel
               during the following thirty (30) days, (v) where necessary,
               adjustments to the Work Schedule by Supplier and Purchaser during
               the following thirty (30) days, (vi) proposed changes to the
               DSOWs, the Work, Supplier's performance milestones. Purchaser's
               delivery obligations, or the System functionality or performance
               requirements or capabilities, including any outstanding Change
               Orders, (vii) claims by Supplier under Section 10.5, and (viii)
               all other issues escalated to the Executive Committee by the PR
               and SR.


22



               (d)    During the period between meetings of the Executive
                      Committee, the Parties will work together to implement the
                      agreements reached by the Executive Committee including,
                      to the extent necessary, revising the Supplier Performance
                      Milestones, Purchaser Delivery Obligations, DSOWs, and
                      Work Schedule in harmony with those agreements.

12.  CODES AND STATUTES

        12.1   The Work shall comply with all applicable laws, statutes, acts,
               ordinances, regulations, codes and standards of federal, state
               and local governmental agencies having regulatory jurisdiction.
               Any changes to these after January 21, 1997, the date of
               Supplier's bid submitted to Purchaser, shall be treated as a
               change to the Work and shall be authorized by a Change Order.

        12.2   Supplier shall conform to the employment practices requirements
               of Executive Order 11246 of September 24, 1965, as amended, and
               applicable regulations promulgated thereunder.

13.  SUBCONTRACTORS

        13.1   Supplier shall at all times be responsible for the Work, and for
               the acts and omissions of Subcontractors and persons directly or
               indirectly employed by Subcontractor, which acts or omissions,
               were they acts or omissions of Supplier or any persons directly
               employed by Supplier, would be a breach of the Contract. The
               Contract shall not constitute a contractual relationship between
               any Subcontractor and Purchaser. Purchaser shall not have any
               obligation for payment to any Subcontractor. Purchaser shall have
               the right to approve any new Subcontractors who shall have
               responsibility for delivery of a Subsystem, provided that such
               approval shall not be unreasonably withheld.

14.  PROPRIETARY INFORMATION AND MATERIAL

        14.1   Confidential Material: "Confidential Material" shall mean
               business or technical information and materials (including but
               not limited to plans, drawings, specifications, designs, oral and
               visual disclosures, records, source code and object code and
               related documentation) that is marked "confidential" or with
               words of similar meaning, and provided to one party (the
               "Receiving Party") by the other Party. Confidential Material
               shall also include, but not be limited to, information received
               from a Disclosing Party in connection with the DSOW, the
               Contract, or the performance of the Work, information developed
               expressly for Purchaser under the Contract, and all Licensed
               Software

23




        and Documentation. Confidential Material shall not include information
        that the Receiving Party establishes by substantial evidence:

                 (i) is or has become generally available to the public other
                 than by a disclosure by the Receiving Party;

                 (ii) was possessed by the Receiving Party prior to its
                 acquisition from the Disclosing Party; provided that the source
                 of such information was not known by the Receiving Party
                 to be bound by a confidentiality obligation to the
                 Disclosing Party or any other party with respect to such
                 information;

                 (iii) is received by the Receiving Party from a third party who
                 has the right to disclose such information;

                 (iv) has been independently developed by the Receiving Party by
                 its employees or third parties that have not had access to the
                 Confidential Material in the possession of the Receiving
                 Party; or

                 (v) is required by law, or by a governmental agency, court or
                 tribunal, to be disclosed.

14.2    A Receiving Party in possession of Confidential Material from a
        Disclosing Party obtained under this Contract, the DSOW or during the
        negotiations of this Contract shall hold such Confidential Material in
        confidence and, except as permitted in this Section 14, shall not
        disclose it, or otherwise make it available to any person or third
        party, or use it for the benefit of any third party, without the prior
        written consent of the Disclosing Party.

14.3    Each Party agrees that all Confidential Material in its possession that
        was received from a Disclosing Party:

                 (i) shall be used by such Party (including its employees,
                 agents and consultants) only for the purpose of performing the
                 Work or in operating and maintaining the System by, or for, the
                 Purchaser; and

                 (ii) shall not be reproduced, copied, in whole or in part,
                 except as specifically directed by the Disclosing Party, or if
                 necessary for the purposes set forth in (i) above; and

                 (iii) shall, together with any copies (except backup and
                 archival copies produced in accordance with a Party's network
                 information processing procedures or retained in accordance
                 with applicable law), reproductions or other records thereof,
                 in any form, and all in-

24




                      formation and materials developed therefrom, be returned
                      to the Disclosing Party when no longer needed in
                      connection with the Contract or in the use of the System,
                      by or for the Purchaser, except as otherwise expressly
                      agreed by the Parties in writing; and

                      (iv) may be disclosed by such Party to employees,
                      consultants and third persons (including its contractors,
                      subcontractors, consultants or other person) for the
                      purposes set forth in (i) above if the Receiving Party
                      obtains from such persons a written nondisclosure
                      agreement substantively equivalent to this Section 14 to
                      treat such information or material as confidential; and
                      provided, however, that disclosure of Licensed Software
                      Source Code or Documentation shall not be made to any such
                      consultants or third persons unless the Purchaser has
                      first offered to Supplier, and Supplier has declined, the
                      opportunity to provide to Purchaser, on substantially the
                      same terms and price offered by any such consultant or
                      third person, the service or product for which such a
                      disclosure is necessary.

        14.4   Confidential Material furnished to the Receiving Party in
               connection with the Contract, shall be protected by the Receiving
               Party from disclosure to others with reasonable efforts in that
               regard.

        14.5   Each Receiving Party agrees that (i) violation of this Section 14
               would cause irreparable harm to the Disclosing Party which could
               not be adequately remedied by damages, and (ii) injunctive or
               other equitable relief is an appropriate remedy for violation of
               this Section 14. Receiving Party also agrees to waive any
               requirement for the posting of any bond by the Disclosing Party
               in connection with such remedy.

        14.6   Except as otherwise expressly provided for or incorporated into
               the Contract, the confidentiality provisions of this Section 14
               shall constitute the sole confidentiality obligations of the
               Parties under the Contract.

15.  PROPRIETARY RIGHTS AND LICENSES

        15.1   Software License. Supplier hereby grants to Purchaser, upon
               Acceptance and final payment or as otherwise provided in the
               Contract, including the Annexes thereto, a non-exclusive,
               99-year, nontransferable (except pursuant to an assignment under
               Section 30) fully paid-up, license to use, reproduce, distribute,
               and display (all of the foregoing to the extent reasonably
               necessary) the Licensed Software in connection with the
               authorized use of the System, including, but not limited to,
               training, operation, modification, and maintenance, subject to
               the provisions of this Section 15.

25




15.1.1  Purchaser Limitations:

(a)     Purchaser shall restrict the installation and use of the Licensed
        Software to two sites (logical), and to computer workstations at
        participating area control centers and SCADA centers, and will not use
        the Licensed Software to provide electric transmission jurisdiction, or
        to extend System applications or functions, beyond the control areas, as
        they exist on the Contract Date, of the electric utilities any part of
        whose service areas as of the Contract Date are within the
        California-Southern Nevada Area of the WSCC Sub- Region as shown on the
        map attached hereto as Annex F. There is no geographic limit on
        acquisition of transmission grid data or generation control/date
        acquisition via computer links to other independent control centers,
        ISO's, data banks or other communication channels to generators.

(b)     Purchaser shall not reverse engineer, disassemble, or decompile any of
        the Licensed Software, including but not limited to Licensed Software
        provided by Supplier's licensors. Purchaser shall make all reasonable
        efforts to prevent any of its employees and subcontractors (other than
        those Subcontractors engaged by Supplier) from independently attempting
        any such prohibited activities;

(c)     Purchaser shall not publish the results of any benchmark tests run on
        the Licensed Software;

(d)     Purchaser recognizes and acknowledges the licensors of third party
        software included in the Licensed Software to be third party
        beneficiaries of this grant of license;

(e)     Except as otherwise permitted in Section 30, Purchaser will not assign,
        timeshare, rent, or resell the Licensed Software to other persons, use
        the Licensed Software to provide consulting services to other persons at
        a profit, or reuse or install on third party systems the License
        Software;

(f)      Purchaser shall protect the Licensed Software from disclosure to
         others in accordance with the provisions set forth in Section 14 of
         this Contract;

(g)     Purchaser shall not permit use of Licensed Software applications that
        utilize third party software, as specified in the DSOWs, by more than
        the licensed number of concurrent users as specified in the DSOWs or
        such additional number of concurrent users for which

                        26




        additional license fees have been paid, or on any basis other than that
        for which such third party software has been licensed;

(h)     Purchaser shall be bound by the license agreement terms required by
        third party software providers of any of the Licensed Software as
        specified in the DSOWs which are procured by Supplier in prepackaged
        form for delivery to Purchaser under the Contract; and

15.1.2  Purchaser Rights: Purchaser's rights under this grant of license shall
        include:

        (a)    the right to use the Licensed Software by means of, or in
               conjunction with, known and future technologies, including but
               not limited to known and future platforms, provided that such
               technologies (or platforms) have been duly licensed to Purchaser
               for such use. Purchaser has paid any required royalties or
               license fees associated with such license, and provided further
               that neither Supplier nor its Subcontractors shall have any
               obligation to support the Licensed Software on or in conjunction
               with such future technologies (or platforms).

        (b)    the right to use Upgrades and Enhancements of the Licensed
               Software during the life of the System as it may be modified from
               time to time;

        (c)    the right to permit employees, contractors and consultants of
               Purchaser to use and reproduce (to the extent reasonably
               necessary) the Licensed Software solely in conjunction with or
               for the purpose of the performance of services for Purchaser in
               connection with the System;

        (d)    the right to permit System Users to use the executable form of
               the Licensed Software as required for their use of the System for
               its specified purposes;

        (e)    the right to develop, or have developed on its behalf, Derivative
               Works, Future Developments, Upgrades, Enhancements or Error
               Corrections using the Licensed Software technologies; and

        (f)    the right to use the Licensed Software for performing ISO
               functions as such functions are defined in the Trust Agreement,
               legislation, decisions of the CPUC, and the Memorandum of
               Understanding leading to the formation of the ISO as

27



               of the Contract Date and subject to the restrictions of Section
               15.1.1 (a).

                15.1.3  With respect to third party software, nothing herein is
                        to be construed as conveying any additional rights
                        beyond that granted in the applicable third party
                        software license as such licenses are identified in
                        Annex G.

        15.2   Customized Software. To the extent that Customized Software and
               any Derivative Works of the Customized Software are licensed by
               Supplier to third parties. Supplier agrees to pay Purchaser a
               recoupment fee to be assessed on every such license granted; such
               Customized Software and applicable recoupment fees which are to
               be negotiated. Such Customized Software and recoupment fees are
               identified in Annex B as updated from time to time as agreed by
               the Parties.

        15.3   Future Developments. Future Developments shall be made pursuant
               to a purchase order under terms, including ownership, to be
               negotiated on a case- by-case basis.

        15.4   Right to Copy the Licensed Software. Purchaser shall be entitled
               to make or cause to be made up to the number of copies of the
               Licensed Software as specified in the DSOWs for the purposes
               permitted hereunder, plus a reasonable number of backup and
               archival copies. Such copies may be made without further
               permission of Supplier or the copyright owner and regardless of
               whether such Licensed Software or other materials are copyrighted
               or otherwise proprietary. All such copies shall be subject to the
               terms of the Contract and to the applicable license agreement.

        15.5   Distribution Rights: Purchaser may distribute authorized copies
               of the Licensed Software for purposes permitted hereunder to
               Authorized Users (subject to Section 14 obligation to obtain
               non-disclosure agreements) by such means or technologies as
               Purchaser may choose, including without limitation physical
               media, electronic transmission and telecommunications, and known
               and future technologies, provided that such distributions are in
               accordance with the confidentiality provision of Section 14.

16. SOURCE CODE

        16.1   Supplier shall deliver to Purchaser the Source Code for these
               portions of the Licensed Software specified in the DSOW.

17.  INSPECTION, TESTING AND ACCEPTANCE

28



17.1    Inspection: Purchaser shall have the right at all reasonable times to
        inspect and witness testing of the System and to verify milestone
        completion through visual inspection or review of relevant records.
        Supplier shall make all necessary arrangements and provide all
        reasonable facilities and access for such inspection and witnessing,
        either at Supplier's place of fabrication, manufacture or assembly, or
        at any other place where any major assembly of the System is fabricated,
        manufactured or assembled. Inspection by Purchaser shall not be
        construed as constituting either a waiver of any rights of Purchaser or
        obligations of the Supplier, or Acceptance. Supplier shall give
        Purchaser a minimum often (10) calendar days prior notice as to the time
        when the System or any major hardware and software component thereof
        will be ready and available for inspection.

17.2    Stage I Testing, Placing m Service and Acceptance:

        17.2.1 The System shall be tested by Supplier and Purchaser pursuant to
               ATPs as provided in the appropriate Stage I DSOWs, to include
               Integrated System Stability Testing, Operational Dry Run, and
               Availability Test.

        17.2.2 Ready To Be Put In Service

               17.2.2.1 Upon completion of the Stage I Operational Dry Run, the
                        System will be deemed to be ready to be put in service
                        if there are no Critical Variances. "Critical Variances"
                        are those which (i) render any Stage I System functions
                        as defined in the DSOWs unavailable, (ii) reduce the
                        availability of the total System below adequate levels,
                        (iii) produce erroneous results which affect System
                        operations, or (iv) render System performance below
                        adequate levels as specified in the DSOWs.

               17.2.2.2 The existence of variances which are not Critical
                        Variances will not be a basis to consider the System not
                        ready to be put in service. However, an aggregation of
                        variances which individually are not Critical Variances
                        but which in combination meet the criteria for a
                        Critical Variance, will be considered as a Critical
                        Variance for purposes of this section.

               17.2.2.3 If, despite the existence of Critical Variances, the
                        System is actually placed in service by the ISO, it

29




will be deemed to be ready to be put in service for the purposes of this
section.

17.2.3  Acceptance:

        Acceptance of the System ("Acceptance") by Purchaser shall occur when
        all of the following conditions have been met or waived by the Purchaser
        in writing:

        17.2.3.1     All tests required by this Contract and me DSOWS, required
                     for Stage I have been completed in accordance with the
                     terms and conditions herein; and

        17.2.3.2     The System has been put in service and meets all of the
                     requirements for Stage I set forth in this Contract and the
                     DSOWS and operates and performs all functions as described.
                     ,

        17.2.3.3     All deliverables including instruction books, manuals, and
                     all other Documentation, have been received by Purchaser in
                     conformance with this Contract; and

        17.2.3.4     Purchaser or PR has notified Supplier in writing of
                     Acceptance.

        17.2.3.5     The Work shall be deemed completed, accepted, and ready for
                     final payment when all of the aforestated conditions have
                     been met. Upon such Acceptance, Supplier shall invoice
                     Purchaser for the final payment and any and all outstanding
                     retention.

17.2.4  In the event Purchaser has not notified Supplier in writing of
        Acceptance and Supplier believes Section 17.2.3 has been satisfied
        so that Acceptance by Purchaser is warranted. Supplier may notify
        Purchaser in writing asserting that Acceptance is warranted and
        Purchaser shall respond within thirty (30) days, stating whether it
        agrees with Supplier. In the event Purchaser determines Acceptance is
        not yet warranted, the Parties shall make a good faith effort to resolve
        such dispute prior to resorting to dispute resolution pursuant to
        Section 26. Pending resolution of such dispute. Purchaser shall
        otherwise pay undisputed properly invoiced amounts and Supplier shall
        continue to perform the Work in accordance with the Work Schedule.

30



        17.3   Stage Two Testing and Acceptance: Stage II testing shall be
               conducted pursuant to the Stage II DSOWS that will be developed
               and agreed to as provided in Section 5.1.2. Acceptance of the
               Stage II System shall be accomplished by the same procedures as
               required for Stage I acceptance at Section 17.2.3.

18.     WARRANTIES

        18.1   System Warranty: Supplier warrants that all components of the
               System (including but not limited to hardware and Licensed
               Software) furnished by Supplier under the Contract, shall:

               (a)    be free of all liens and other encumbrances of title;

               (b)    be new as of a date not earlier than the Contract Date,
                      not from the surplus market, and of the kind and quality
                      specified in the DSOWs;

               (c)    perform the functions specified in the Contract; and

               (d)    conform to all requirements and descriptions, detailed and
                      general, regarding the System contained in the Contract
                      and/or the Documentation.

        18.2   Software Warranty: Supplier warrants that the Licensed Software
               will:

               (a)    be in good operating order and conform in all respects to
                      the Documentation, all applicable ATPs and the Contract;

               (b)    be compatible with and operate properly on, or with, the
                      hardware for which it is intended;

               (c)    be free from viruses or other surreptitious code that
                      affect the operation or the good working order of the
                      Licensed Software or the System;

               (d)    not contain any code which would have the effect of
                      disabling or otherwise shutting down authorized use of all
                      or any part of the Licensed Software or the System; and

               (e)    on or before July 1, 1998, be century compliant for the
                      year 2000. In order to be century compliant. Supplier
                      agrees that the Customized Software shall be capable of
                      accounting for all calculations using a century and date
                      sensitive algorithm for the year 2000 and the fact that
                      the year 2000 is a leap year, and that Supplier shall use

31



               its best efforts to ensure Licensed Software obtained from third
               parties (excluding Customized Software provided by Ernst & Young
               LLP which shall be treated for these purposes as being provided
               directly by Supplier) shall be so capable. Supplier agrees that
               Purchaser may request test scripts from Supplier to validate that
               the Licensed Software is century compliant and determine the
               latest future date such Licensed Software is able to process. In
               the event Supplier is unable to validate the ability of the
               Licensed Software to be century compliant on or before July 1,
               1998, Supplier shall, within 10 days of Purchaser's request, at
               Purchaser's option, either (a) permit Purchaser to modify such
               software so that it is century compliant or (b) reimburse
               Purchaser for the costs of obtaining a function equivalent of
               such software.

18.3    Hardware Warranty: All Hardware is supplied only as warranted by the
        manufacturer. All original manufacturer's warranties covering the
        hardware shall be transferred and assigned to Purchaser upon
        installation of such hardware at the Jobsite, or System Premises, as
        appropriate. Upon expiration of such warranties, it shall be the
        responsibility of Purchaser to enter into a hardware maintenance
        agreement directly with the manufacturer or a third party of Purchaser's
        choosing. Supplier warrants that all hardware delivered by Supplier
        under the Contract shall be free of all liens and encumbrances.

18.4    Documentation Warranty: Supplier warrants that the Documentation shall
        be accurate, complete, and as specified in the DSOW. Supplier shall, at
        its sole expense, promptly correct any nonconforming Documentation .

18.5    DISCLAIMERS: SUPPLIER EXPRESSLY WARRANTS THE SYSTEM AND THE WORK
        PERFORMED HEREUNDER ONLY AS SET FORTH HEREIN. SUPPLIER MAKES NO OTHER
        WARRANTIES, EITHER EXPRESS OR IMPLIED. NO IMPLIED WARRANTIES, INCLUDING
        THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL
        APPLY. SUPPLIER'S SOLE OBLIGATION AND THE EXCLUSIVE REMEDIES OF
        PURCHASER FOR ANY BREACH BY SUPPLIER OF ITS WARRANTIES SHALL BE AS
        EXPRESSLY STATED IN THIS SECTION 18.

18.6    Exclusions: The limited warranty provided in the Contract will not apply
        to, and Supplier will have no warranty obligation with respect to, any
        defect, malfunction or nonconformity resulting from (i) improper site
        preparation or maintenance by or on behalf of Purchaser (other than by
        Supplier or its Subcontractors), (ii) calibration, maintenance,
        modification or use by or on behalf of Purchaser (other than by Supplier
        or its Subcontractors), (iii) operation of hardware outside of its
        published environmental specifications, includ-

                               32



        ing any failure of electrical power, air conditioning or humidity
        controls, (iv) hardware, software, interfacing or supplies installed or
        supplied by Purchaser, any subcontractor to Purchaser (other than
        Supplier or its Subcontractors, or any System User, or (v) any cause
        other than ordinary use. In addition, Supplier will have no warranty
        obligation to adjust, repair or replace any component of its adjustment,
        repair or replacement is made impractical because of post-installation
        changes made by Purchaser or its subcontractors (other than by Supplier
        or its Subcontractors) rendering such component inaccessible for
        purposes of the required adjustment, repair or replacement.

18.7    Duration: Any failure of the System, the Documentation or the Licensed
        Software to comply with the express warranties set forth in this Section
        18 which is discovered within one year after acceptance of the portion
        of the Work affected by such failure, but not later than the effective
        date of the Maintenance Agreement into which Purchaser will enter as
        provided in this Contract, shall be corrected by Supplier in a manner
        approved by the Purchaser, such approval not be unreasonably
        withheld, at Supplier's sole expense with due diligence and
        dispatch as required to make the System conform to the warranties stated
        hi this Contract, including, but not limited to, any necessary
        adjustments, modifications, repair or replacement, changes to the
        Licensed Software and Documentation, and including all necessary parts,
        transportation charges and labor as may be necessary. Such correction
        shall be Purchaser's exclusive remedy and Supplier's sole liability for
        any such breach of warranty.

18.8    Warranty Performance: Supplier shall perform such corrective Work at the
        facilities where the System is installed to minimize the down time of
        the System. Such Work shall be performed as follows: For any defects,
        mal functions or nonconformities that prevents the proper use of
        the System, Supplier shall provide diagnostic information within
        four (4) hours after the Purchaser's problem call, and, if correction at
        the Jobsite is required, shall dispatch personnel within twenty-four
        (24) hours after the Purchaser's problem call to perform such
        corrective Work. For minor defects, malfunctions or nonconformities
        which do not affect the use or operation of the System, Supplier may
        group the correction of such defects, malfunctions or nonconformities as
        agreed to by the Purchaser.

18.9    Cover: If Supplier fails to promptly make the necessary corrections of
        defects, malfunctions or nonconformities discovered during the warranty
        period, the Purchaser, upon notification to Supplier, may perform or
        have performed such necessary warranty correction work and Supplier
        shall pay the Purchaser for all such costs reasonably incurred
        including, but not limited to, direct labor programming, consulting,
        material, subcontracts, and other related costs.




18.10   Services: Supplier warrants that all Work performed by Supplier pursuant
        to the Contract shall be performed with the degree of skill of the trade
        and care required by good and sound procedures and practices prevailing
        at the time when the services are performed and shall meet the
        requirements of the DSOW. In the event that any services performed
        pursuant to the Contract are discovered within ninety (90) days after
        completion of such services not to comply with the foregoing warranty.
        Supplier shall immediately correct and/or re-perform such services.

18.11   Conditions of Warranties: The warranties set forth in this Section 18
        are subject to the following conditions applicable to the item for which
        a breach of warranty is claimed:

        18.11.1   The Purchaser shall give Supplier written notification (or
                  telephone notification followed up in writing) of any failure
                  to comply with a warranty within a reasonable time after the
                  Purchaser becomes aware of such failure.

        18.11.2   The Purchaser shall have the right to continue to operate the
                  System, or any part thereof which may require warranty
                  correction or repair, until such time as the Purchaser elects
                  to remove such System or part thereof from service; provided
                  that, to the extent Supplier would not otherwise be liable
                  under the Contract, Supplier shall have no liability or
                  obligation to Purchaser for any damage to the System or
                  liabilities caused by such continued operation.

        18.11.3   The Purchaser shall operate and maintain the System in
                  accordance with the operation and, if applicable, maintenance
                  procedures agreed upon by the Parties; provided and on
                  condition that. Supplier shall furnish to Purchaser such
                  operating and maintenance procedures clearly stated in writing
                  and properly identified.

        18.11.4   Final payment by the Purchaser shall not release Supplier from
                  any of its warranty obligations.

19.     SUPPLIER'S SYSTEM SUPPORT

        19.1      Supplier or Major Subcontractors shall make available
                  replacement parts, expansion modules, hardware and software
                  support on System components for a period of up to 10 years,
                  provided that Purchaser shall have purchased, and Supplier put
                  into effect, the Software Maintenance Agreements with Supplier
                  or Major Subcontractor and appropriate maintenance agreements
                  with hardware manufacturers through the same period. In the
                  event, however, that certain of these devices are not
                  available due to obsolescence, and duplicates

34



                  cannot be purchased at a reasonable price in comparison with
                  that of the original unit, the Supplier may, with prior
                  Purchaser approval not be unreasonably withheld, supply a
                  device which is nearly similar and provides comparable
                  services with functionality and responsiveness comparable to
                  the obsolete device.

        19.2      If, for administrative reasons. Purchaser orders replacement
                  parts for the System under a new purchase order instead of
                  under the Contract, Supplier or Major Subcontractors agrees to
                  sell such replacement parts under these general terms and
                  conditions as set forth in the Contract.

        19.3      Supplier further agrees that, if Supplier or Major
                  Subcontractors cannot or no longer fulfills its maintenance
                  and spare part obligations. Supplier or Major Subcontractor
                  shall use it best efforts to provide or secure for Purchaser
                  the necessary maintenance services and, on a form, fit, and
                  function basis, the required spare parts.

        19.4      Supplier shall not unreasonably interfere with normal
                  operation of the facilities where the System is installed, or
                  with the equipment, or the work of any contractors or
                  subcontractors on the System Premises. When Supplier
                  anticipates unavoidable interference, it shall so notify the
                  PR as soon as possible, but at least fifteen (15) days in
                  advance. The PR shall determine, in advance, whether such
                  interference is unavoidable and shall, if required, establish
                  the reasonably necessary procedures under which the
                  interference shall be allowed. The PR shall have final
                  determination of priorities in case of conflicts with
                  operations or work of others. Supplier shall not operate any
                  of the ISO's equipment (other than the affected portions of
                  the System if necessary at the sole discretion of Purchaser to
                  provide the System support) or control devices or those of any
                  other contractor or subcontractor to Purchaser on the System
                  Premises.

20.     INFRINGEMENT PROTECTION

        20.1      Supplier shall indemnify and save harmless the Purchaser and
                  its successors, permitted assignees and transferees and
                  Authorized Users (all herein referred to individually as
                  "Infringement Indemnitee" and collectively as "Infringement
                  Indemnitees") against any and all liabilities, judgments,
                  costs, expenses, and damages, which may be awarded against any
                  of the Infringement Indemnitees in any suit, action or
                  proceeding brought against any of the Infringement Indemnitees
                  for infringement or alleged infringement of any Intellectual
                  Property Right in a court of competent jurisdiction, arising
                  out of the use by the Infringement Indemnitee(s) of the System
                  or any part thereof, in the ordinary course of its use for the
                  purposes hereunder specified or the exercise of any rights
                  granted under Section 15 hereof. If any action, claim

35




        or suit for infringement of any Intellectual Property Right or other
        proprietary right, or royalty or license agreement, be made or
        instituted against the Infringement Indemnitee(s) as above specified on
        account of the use of the System, (or any part thereof) or the exercise
        of the granted rights. Supplier shall assume the defense of such action,
        claim or suit and all expenses incident to the defense thereof.

20.2    Supplier shall have no liability under this section and Purchaser shall
        indemnify and save harmless Supplier: (i) for any claim of infringement
        based on me use of any superseded or altered release of any Licensed
        Software provided or obtained by the Purchaser from parties other than
        the Supplier if the infringement would have been avoided by the use of a
        current unaltered release of the Licensed Software (or component
        thereof) provided to Purchaser by Supplier; (ii) for any claim of
        infringement based on Purchaser's modification of the System or any
        component thereof; (iii) for any claim of infringement based on
        Purchaser's use of the System in conjunction with any product or
        software not furnished by Supplier or for a purpose not specified in the
        DSOWs; or (iv) in the event the violation of such third party rights
        were due to directions by Purchaser to adopt specific hardware or
        software items or configurations that had not been proposed by the
        Supplier to meet the requirements of the DSOWs. In assuming the defense
        of such claim(s) or suit(s) Purchaser shall have control thereof and
        Supplier shall provide Purchaser with the assistance, information, and
        authority necessary to perform its obligations under this Section. The
        Infringement Indemnitee(s) shall be kept fully informed as to the
        progress thereof and have the right to confer about and give advice and
        assistance regarding the same.

20.3    Consistent with the scope of Supplier's obligations as set forth in
        Section 20.1, in the event that (a) there is an adjudication that the
        System or any component or its use constitutes infringement, or (b) the
        use or sale of any such System or component is enjoined. Supplier shall
        or as soon as possible and in any event within thirty (30) days from the
        occurrence of any of the aforestated events, at its option and expense
        either:

                 (i) Procure for the Purchaser the right to continue using the
                 System;

                 (ii) Replace the System or infringing components with
                 non-infringing ones providing service equal to that
                 contracted for hereunder; or

                 (iii) Modify the System or infringing components thereof so
                 that they become non-infringing while providing service equal
                 to that contracted for hereunder.

36



20.4    Supplier's obligations under Section 20.3 shall be in addition to those
        under Section 20.1 but together constitute Supplier's entire liability
        and Purchaser's exclusive remedy for infringement of any Intellectual
        Property Rights.

21.     FITNESS FOR DUTY

        21.1   Supplier and its Subcontractor personnel on the Jobsite shall:

               (a)    report for work in a manner fit to do their job;

               (b)    not be under the influence of or in possession of any
                      alcoholic beverages or of any controlled substance (except
                      a controlled substance as prescribed by a physician so
                      long as the performance or safety of the Work is not
                      affected thereby); and

               (c)    not have been convicted of any serious criminal offense
                      which may have an adverse impact on Purchaser.

        21.2   Searches by Purchaser's authorized representatives may be made of
               lockers, storage areas, vehicles, persons or personal effects on
               Purchaser's-owned or leased property at various times without
               prior announcement. Such facility inspections may be conducted
               using detection dog teams to search work areas and other common
               areas in order to detect evidence of unlawful drug use or other
               prohibited items (pyrotechnics, explosives, firearms, weapons, or
               facsimiles thereof, alcohol and illegal drugs). Prohibited Items
               must not be brought onto or kept on such property.

        21.3   Supplier shall (i) advise its personnel of these requirements
               before they enter on the Jobsite or System Premises, as
               appropriate, (ii) notify Purchaser of any violation of these
               requirements, and (iii) unless the Parties otherwise agree,
               immediately remove from the Jobsite or System Premises, as
               appropriate, any person determined to be in violation of these
               requirements. Supplier shall impose these requirements on its
               Subcontractors. The aforestated requirements apply solely to
               Jobsites and System Premises, as appropriate, and shall not be
               construed to reflect the employment or contractual relationships
               of Supplier, its employees, agents or Subcontractors.

22.     INDEMNITY

        22.1   Supplier shall, at its own cost, defend, indemnify and save
               harmless Purchaser, and its officers, agents, employees, and
               assignors, assignees, and successors in interest ("Indemnified
               Parties") from and against any and all liability, damages,
               losses, claims, demands, actions, causes of action, costs
               including attorney's fees and expenses, or any of them, resulting
               from the death or

                                    37



        injury to any person or damage to or losses of any property arising out
        of, and during, the Supplier's performance except to the extent caused
        by the negligence or willful misconduct of such Indemnified Parties.

22.2    Supplier shall save harmless Purchaser, its assignees and successors in
        interest for any and all damages, costs and expenses (including property
        replacement costs) arising from damage to or loss of Purchaser's
        property (which for purposes of this Section 22.2 shall include but not
        be limited to the System, the System Premises and any equipment on the
        System Premises) arising out of and during the Supplier's performance of
        the Contract, except to the extent caused by the negligence or willful
        misconduct of Purchaser.

22.3    The indemnities set forth in this Section 22 shall not be limited by the
        insurance requirements set forth in Section 23.

22.4    Purchaser shall, at its own cost, defend, indemnify and save harmless
        Supplier, and its officers, agents, employees, assignors, assignees, and
        successors in interest ("Indemnified Parties") from and against any and
        all liability, damages, losses, claims, demands, actions, causes of
        action, costs including attorney's fees and expenses, or any of them,
        resulting from the death or injury to any person or damage to or losses
        of any property arising out of or in connection with the Purchaser's
        performance, or Purchaser's failure of performance of the Contract,
        however caused, except to the extent caused by the negligence or willful
        misconduct of such Indemnified Parties.

22.5    Supplier's indemnity obligations set forth in this Section 22 shall not
        apply to liabilities, damages, losses, claims, demands, actions, causes
        of action, costs, or any of them, arising from claims asserted by third
        parties, based on Purchaser's use of the System, and Purchaser shall
        indemnify and defend Supplier ("Indemnified Party") from and against any
        and all such claims.

22.6    The indemnity obligations contained in this Section 22 are contingent
        upon the Indemnified Parties giving the indemnifying party prompt
        written notice of any such claim, full cooperation in the defense of any
        such claim, and the right to defend against any such claim with counsel
        of the indemnifying party's choosing and to settle or compromise any
        such claims as the indemnifying party deems appropriate, subject to the
        payment by the indemnifying party of any settlement or compromise
        amount. Failure to do so shall relieve the indemnifying party of any
        obligation or liability pursuant to this Section 22. Except to the
        extent costs were reasonably and necessarily incurred prior to prompt
        notice being given to the indemnifying party, the Indemnified Parties
        shall not incur, nor shall the indemnifying party be liable for, any of
        the Indemnified Parties' costs or expenses related to such claims,
        without the consent of the indemnifying party. Indemnified Parties shall
        have the right to

                               38



               employ their own counsel for any such claim, but the fees and
               expenses of such counsel shall be borne by the Indemnified
               Parties.

23.     INSURANCE

        23.1   Supplier shall maintain for the Work, and shall require that each
               Subcontractor performing any service at the Jobsite or System
               Premises, as appropriate, (except material delivery only)
               (hereinafter referred to as "Jobsite Subcontractor") maintain, at
               all times during the Work and at its own expense, valid and
               collectible insurance as required below. This insurance shall not
               affect Supplier's liability under the indemnity provisions of
               Section 22, and shall not be terminated, expire, nor be
               materially altered without giving thirty (30) calendar days'
               advance written notice to Purchaser.

               23.1.1 As evidence that policies do in fact provide the required
                      coverages and limits of insurance listed below and that
                      such coverages and limits are in full force and effect.
                      Supplier shall furnish to Purchaser certificates of
                      insurance on forms reasonably acceptable to Purchaser.
                      Supplier shall require each Jobsite Subcontractor to
                      provide such certificates of insurance to Supplier.
                      Certificates shall be furnished and made available within
                      thirty (30) days after execution of the Contract or
                      subcontract but in any event prior to start of the Work.

               23.1.2 Any other insurance carried by Purchaser, its officers,
                      agents, and employees which may be applicable shall be
                      deemed to be excess insurance and Supplier's insurance
                      shall be deemed primary for all purposes despite any
                      conflicting provision in Supplier's policies to the
                      contrary, solely to the extent of Supplier's indemnity
                      obligations under the Contract.

                      (a)    Worker's Compensation with statutory limits, as
                             required by the state in which the Work is
                             performed, and Employer's Liability Insurance with
                             limits of not less than $1,000,000, Carriers
                             furnishing such insurance shall be required to
                             waive all rights of subrogation against Purchaser,
                             its officers, agents, employees and other
                             contractors and subcontractors.

                      (b)    Commercial General Liability Insurance, written on
                             an "occurrence" basis, products/completed
                             operations, broad form property damage liability,
                             and contractual liability. Such insurance shall
                             bear a combined single limit per occurrence and
                             annual aggregate of not less than $5,000,000,
                             exclusive of defense costs as respects products and
                             completed operations, and a combined single limit
                             per occurrence and annual

                                    39



aggregate of not less than $5,000,000, exclusive of defense costs as respects
all other coverages. Such insurance shall: (i) acknowledge Purchaser, its
officers, agents and employees as additional insureds as regards Supplier's acts
or omissions; (ii) be primary for all purposes; (iii) contain standard cross-
liability or severability of interest provisions; and (iv) contain no explosion,
collapse, or underground exclusions, to the extent of Supplier's indemnity
obligations under the Contract.

                      (c)    If Supplier elects, with the concurrence of
                             Purchaser, to use a "claims made" form of
                             Commercial General Liability Insurance, then the
                             following additional requirements shall apply: (i)
                             the retroactive date of the policy shall be at
                             least one (1) day prior to the commencement of the
                             Work; and (ii) coverage for the Work shall be
                             maintained in effect for a period of not less than
                             two (2) years after completion of the Work, or a
                             supplemental extended reporting period of not less
                             than two (2) years after completion of the Work
                             shall be included. These requirements shall ensure
                             that such insurance shall enable Purchaser to
                             recover for claims reported at any time commencing
                             with the start of Work and continuing to a date not
                             less than two (2) years following completion of the
                             Work.

       23.2    Each Party shall report immediately to Purchaser and confirm in
               writing any injury, loss, or damage incurred by either Party or
               Jobsite Subcontractors in connection with the Work, or its
               receipt or notice of any claim by a third party, or of any
               occurrence that might give rise to such claim.

       23.3    If Supplier fails to comply with any of the provisions of this
               Insurance Section, Supplier shall, at its own cost, defend,
               indemnify and hold harmless Purchaser, its officers, agents,
               employees, assignors and assigns, and predecessors and
               successors in interest, from and against any and all liability,
               damages, losses, claims, demands, actions, causes of action,
               costs including attorney's fees and expenses, or any of them,
               resulting from the death or injury to any person or damage to any
               property to the extent that Purchaser would have been protected
               had Supplier complied with all of the provisions of this section.

24.  SAFETY NOTIFICATIONS

       24.1    Supplier shall provide (obtain from its Subcontractors or other
               appropriate affiliates) a Material Safety Data Sheet ("MSDS") for
               each chemical product

40



               (e.g., lubricants, solvents, paints, cleaners, inhibitors, etc.)
               prior to its use at the Jobsite or System Premises, as
               appropriate, and for any such product that may be contained in
               any equipment furnished to Purchaser as a part of the Work.

               24.1.1 Such MSDSs shall be maintained at the Jobsite or System
                      Premises, as appropriate, shall be subject to review by
                      Purchaser, and shall be turned over to Purchaser upon
                      acceptance of the Work and prior to Contractor's leaving
                      the Jobsite or System Premises, as appropriate.

               24.1.2 A revised MSDS shall also be obtained whenever the
                      formulation or evaluation of a product is changed.

               24.1.3 All MSDSs shall comply with the Federal (29 C.F.R.Section
                      1910.1200) and California (8 CACSection 5194) OSHA Hazard
                      Communication Standards without exception, and shall also
                      include, but not be limited to the following data: (If an
                      item is not applicable. Contractor shall so state.)

                      Date of MSDS(s) preparation.
                      Contract number(s).

                      Supplier's and manufacturer's catalog number for the
                      product and its container size and type.

                      All MSDS's shall be addressed to:

                      Mr. Eduardo Sugay
                      DE&S
                      5000 Executive Parkway - Suite 300
                      San Ramon, CA 94583

24.2    Container Labeling Requirements:

        24.2.1   Prior to shipment. Supplier shall, and shall require its
                 Subcontractors to, label all containers of hazardous materials,
                 as defined by the State of California's and the Federal
                 Government's OSHA programs. Such labels shall include, as a
                 minimum:

                 1.   The specific chemical identity of the substance. If the
                      product is a mixture, list the components present in
                      concentrations of 1% or more, or 0.1% or more if a
                      carcinogen.

41



                 2.   The name and address of the manufacturer, importer or
                      other distributor.

                 3.   Warning statements of the substance's Flammability,
                      Corrosivity, Toxicity, Reactivity, Primary Routes of
                      Bodily Entry and Target Organs affected.

                 4.   Emergency and first aid procedures.

                 5.   The potential for fire and/or explosion.

                 6,   Any generally known precautions for safe use and handling
                      of the substance.

         24.2.2  These labels shall be clearly legible and capable of
                 withstanding normal shipping and handling while maintaining
                 legibility of ALL information printed thereon.

         24.2.3  Any container at the Jobsite or System Premises, as
                 appropriate, without said label, or with illegible information
                 thereon, is subject to rejection and, at the sole discretion of
                 Purchaser, may be removed from the Jobsite or System Premises,
                 as appropriate, and disposed of at an approved dump site at
                 Supplier's expense.

24.3    California's Toxic Enforcement Act Requirements: Supplier is hereby
        warned that exposure to chemicals known to the State of California to
        cause cancer, birth defects, or other reproductive harm may occur at
        Purchaser's facilities. Upon request. Purchaser shall make available to
        the Supplier, and its employees, a Material Safety Date Sheet (MSDS) for
        such chemical exposures at the Jobsite or System Premises, as
        appropriate. Supplier shall inform its Subcontractors of the above
        information. From the time that Supplier enters Purchaser facilities or
        begins Work until the time the Work is completed. Supplier shall, and
        shall require its Subcontractors to, issue warnings to personnel
        on the Jobsite or System Premises, as appropriate, the public, and
        Purchaser's personnel about exposure to chemicals known to the State of
        California to cause cancer, birth defects, or other reproductive harm.
        Supplier shall warn Purchaser of any exposure which may continue after
        Supplier has completed the Work. Such warnings may take the form of a
        Material Safety Data Sheet.

42




25.  LIMITATION OF LIABILITY

       25.1    Purchaser, its agents, employees, contractors, subcontractors or
               consultants shall not be liable for indirect, incidental,
               punitive, special, or consequential damages, whether such damages
               arise in contract, warranty, indemnity, tort (including
               negligence), strict liability in tort or otherwise, including,
               but not limited to, lost profits, and damages arising out of
               commitments to contractors, or personal service contracts.

       25.2    Supplier, its agents, employees, subcontractors, suppliers, or
               licensors shall not be liable for any other indirect, incidental,
               special or consequential damages of any nature or kind due to any
               cause whatsoever, whether arising in contract, warranty,
               indemnity, tort (including negligence), strict liability in tort
               or otherwise including but not limited to loss of revenue or
               profit, loss of use, loss of power, damages suffered by
               Purchaser, any System User or any customer of the foregoing for
               service interruptions due to the marketing, sale, transmission
               of, or failure to market, sell or transmit, electricity, or for
               costs of capital or costs of replacement power.

       25.3

               25.3.1 Stage I: For Stage I work, notwithstanding anything to the
                      contrary herein. Supplier's, its agents', employees',
                      subcontractors, suppliers' and licensor's cumulative
                      liability hereunder, on any and all claims, for any loss
                      or damage arising out of, connected with, or resulting
                      from this Contract, or from the performance or breach
                      thereof, shall be limited to greater of (i) $10,000,000 or
                      (ii) the portion of the Contract Price actually paid
                      solely for Stage I Work up to one- hundred percent (100%)
                      of the Contract Price for Stage I Work.

               25.3.2 Stage II: For Stage II Work, notwithstanding anything to
                      the contrary herein. Supplier's, it agents', employees',
                      subcontractors' suppliers' and licensors' cumulative
                      liability hereunder, on any and all claims, for any loss
                      or damage arising out of, connected with or resulting from
                      this Contract, or from the performance or breach thereof,
                      shall be limited to the greater of (i) $1,500,000 or (ii)
                      the portion of the Contract Price actually paid solely for
                      Stage II Work up to one-hundred percent (100%) of the
                      amount of the Contract Price paid for Stage II Work.

       25.4    In no event shall Supplier, its agents, employees.
               Subcontractors, suppliers or licensors be liable for preexisting
               conditions, delays, curtailment of plant operations, process
               failure, pollution or environmental damage or fines levied

43



by regulatory agencies as a result of pollution, occupational disease or toxic
torts.

26.  DISPUTES

26.1     Generally: Any dispute pertaining to the Contract, which cannot be
         resolved between the SR and the PR shall be referred to Purchaser and
         the Supplier for resolution. If the Parties cannot reach an agreement
         within a reasonable period of time, the dispute shall be resolved as
         provided in Section 26.2. Pending resolution of a dispute. Supplier
         shall continue to perform the Work as directed by the PR and Purchaser
         shall continue to make payments for the undisputed items as set forth
         in the Contract.

26.2     Negotiations: The Parties shall attempt in good faith to resolve any
         dispute arising out of, or relating to, this Contract promptly by
         negotiations between an officer of Purchaser or his or her designated
         representative and an officer or executive of similar authority
         designated by Supplier. Either Party may give the other party written
         notice of any dispute. Within twenty (20) days after delivery of said
         notice, the designated persons shall meet at a mutually acceptable time
         and place, and thereafter as often as they reasonably deem necessary to
         exchange information and to attempt to resolve the dispute. If the
         matter has not been resolved within thirty (30) days of the first
         meeting, either Party may initiate a mediation of the controversy.

         26.2.1  All negotiations and any mediation conducted pursuant to this
                 clause are confidential and shall be treated as compromise and
                 settlement negotiations, to which Section 1152.5 of the
                 California Evidence Code shall apply, and Section 1152.5 is
                 incorporated herein by reference.

         26.2.2  Notwithstanding the foregoing provisions, a Party may seek a
                 preliminary injunction or other provisional judicial
                 remedy if in its judgment such action is necessary to avoid
                 irreparable damage or to preserve the status quo.

         26.2.3   Each Party is required to continue to perform its obligations
                  under this Contract pending final resolution of any dispute
                  arising out of or relating to this Contract.

26.3     Resolution of Disputes Through Arbitration

         26.3.1  Any dispute arising between the Parties concerning contract
                 terms or conditions including, but not limited to,
                 specifications, performance criteria or pricing, or performance
                 thereof, arising under or relating

44



        to the performance of this Contract which dispute cannot be settled by
        the Parties within a reasonable time, not to exceed thirty (30) days
        after the meeting described in Sections 26.1 or 26.2 above, may be
        submitted by either Party to binding arbitration.

26.3.2  All disputes to be arbitrated shall be submitted to and decided by a
        board of three arbitrators, one to be appointed by Purchaser and one by
        Supplier, provided that both such arbitrators shall be professionals in
        the technical area in dispute; and the two arbitrators so appointed
        shall appoint a third arbitrator, who shall be an attorney experienced
        in the resolution of software systems disputes. If either Party shall
        fail or refuse to appoint an arbitrator within thirty (30) days after
        written notice has been given to it by the other Party naming the
        tatter's arbitrator, the Party giving such notice shall have the right
        to request the Presiding Judge of the Superior Court of the State of
        California in and for the City and County of Sacramento to appoint an
        arbitrator for the other Party so in default. If the two arbitrators
        thus chosen shall be unable to agree upon the third arbitrator, such
        arbitrator shall be appointed, upon application of either Party, by the
        Presiding Judge of the Superior Court of the State of California in and
        for the City and County of Sacramento. The arbitration will be conducted
        in accordance with the procedures of this Section 26.3.2 and the
        Commercial Arbitration Rules of the American Arbitration Association
        (the "AAA Rules"), In the event of a conflict, the provisions of this
        Contract shall control. Any issue concerning the extent to which any
        dispute is subject to arbitration, or concerning the applicability,
        interpretation or enforceability of these procedures, including any
        contention that all or part of these procedures are invalid or
        unenforceable, shall be governed by the Federal Arbitration Act and
        resolved by the arbitrators. No potential arbitrator may serve on the
        panel unless he or she has agreed to be bound by these procedures. The
        arbitrators shall have no power to award (i) damages inconsistent with
        the Contract or (ii) punitive damages or any other damages not measured
        by the prevailing party's actual damages unless expressly provided for
        in the Contract. In no event, even if any other portion of these
        provisions is held to be invalid or unenforceable, shall the arbitrators
        have power to make an award or impose a remedy that could not be made or
        imposed by a court deciding the matter in the same jurisdiction. No
        discovery shall be permitted in connection with the arbitration unless
        it is expressly authorized by the arbitration panel upon a showing of
        substantial need by the party seeking discovery. All aspects of the
        arbitration shall be treated as confidential. Neither of the parties nor
        the arbitrators may disclose the existence, content or results of the

45



                      arbitration, except as necessary to comply with legal or
                      regulatory requirements. Before making any such
                      disclosure, a party shall give written notice to all
                      other parties and shall afford such parties a reasonable
                      opportunity to protect their interests. The decision of
                      a majority of the arbitrators, after a hearing at which
                      both Parties shall have an opportunity to be heard and
                      to introduce evidence, shall be binding upon the Parties
                      hereto. Any award by such an arbitral proceeding shall
                      be binding on both Parties and judgment thereon may be
                      entered in any court of competent jurisdiction.

               26.3.3 The cost of the arbitrator appointed by Purchaser shall be
                      bome by Purchaser; the cost of the arbitrator appointed by
                      Supplier shall be bome by Supplier; and the cost of the
                      third arbitrator and any attendant costs of arbitration
                      shall be bome equally by Purchaser and Supplier. Except as
                      otherwise specifically provided in this Section, any
                      arbitration shall be subject to the provisions of Title 9
                      of Part 3 of the Code of Civil Procedure of the State of
                      California. Each Party shall bear its own attorneys' fees
                      and other expenses in connection with any such
                      arbitration.

       26.4    Jurisdiction. Choice of Litigation Location: Any suit or action
               permitted to be brought between the Parties pursuant to the
               provisions of this Contract shall be litigated only in, to the
               extent permitted by law, the jurisdiction of any state or federal
               court sitting in the State of California and the parties
               unequivocably agree that all claims in respect of such action or
               proceeding may be heard and determined in such court.

27.  TERMINATION AT WILL

        27.1   Purchaser may, at any time, terminate for convenience (a
               "Termination at Will") of Purchaser the Contract, the Work, or
               any portion of the Work, by written notice to Supplier. Such
               notice shall be confirmed by a Change Order.

        27.2   Upon receipt of such notice of Termination at Will, Supplier
               shall stop performance of the terminated Work and take action as
               directed by Purchaser to carry out such termination.

        27.3   In the event of a Termination at Will, Purchaser shall pay to
               Supplier (i) the payments due for Work completed and for costs
               incurred by Supplier for Work in progress, including overhead and
               reasonable profit on such amounts; (ii) all costs reasonably
               incurred by Supplier in carrying out such Termination at Will,
               and (iii) all costs reasonably incurred by Supplier in the
               deacti- vation and redeployment of resources that had been
               committed to the Work,

46



               less any amounts for salvage or credit for Supplier's use of any
               materials or equipment purchased or manufactured prior to
               termination, and for Supplier's stock items. Supplier shall
               furnish reasonably sufficient supporting data for any claims
               under this section, including the supporting data of its Major
               Contractors corresponding to the foregoing cost categories.

        27.4   Purchaser shall take possession of and title to any System
               components or materials that have been fabricated or procured,
               and shall receive a license (in accordance with the provisions of
               Section 15) to any Licensed Software to the extent included in
               the termination payment.

        27.5   The provisions of this Section 27 shall be Supplier's sole remedy
               for Termination at Will of the Contract or the Work or any
               portion thereof.

        27.6   Any termination under this Section 27 shall be without prejudice
               to any other rights of either Party which may have accrued prior
               to such termination.

28.  DEFAULTS AND TERMINATION FOR CAUSE

        28.1   If Supplier: (i) fails to perform any of its material obligations
               under the Contract; (ii) fails to give Purchaser adequate
               assurance of contract-compliant performance within fifteen (15)
               days after written demand by Purchaser when reasonable grounds
               arise for insecurity that contract provisions and deadlines will
               be met; (iii) fails to address a failure of performance
               immediately or cure a failure of performance within thirty (30)
               calendar days from Purchaser's notice of such failure; (iv) fails
               to meet the Supplier Performance Milestones or the Work
               Schedules, or to deliver the System or components thereof on or
               before the specified delivery dates and such failure is
               reasonably expected to adversely affect the completion of the
               system in accord with the Work Schedule; or (v) if all of the
               conditions of Acceptance have not been met on or before the date
               specified in the DSOWs, then Purchaser may (a) withhold payment
               of any further moneys which may be due Supplier until the default
               is cured, if a cure period is allowed by Purchaser, and/or (b)
               declare Supplier to be in default of the Contract by notice to
               Supplier in writing; and Purchaser shall in either case be
               entitled to terminate the Contract for cause (a "Termination for
               Cause"), in whole or in part. Any termination pursuant to this
               Section 28 shall not be deemed a Termination at Will within the
               meaning of Section 27; except that a regulatory or legislative
               action which has the effect of altering the Work Schedule for, or
               obviates the need for continuation of, the Contract shall be
               deemed a Termination at Will. Purchaser shall be entitled to
               damages and costs as provided by law. In no event shall Purchaser
               be liable for lost or anticipated profits, for overhead costs, or
               for any other charges or costs arising out of Purchaser's
               Termination for Cause of the Contract or any portion thereof.

                                     47



28.2    In the event a notice of Termination for Cause has been delivered by
        Purchaser pursuant to Section 28.1, Supplier shall stop the Work (or the
        portion thereof terminated by Purchaser) and return all data pertaining
        to the terminated Work provided by Purchaser. Purchaser may, consistent
        with Purchaser's obligation to mitigate its damages, require Supplier to
        proceed as follows:

        28.2.1 Supplier shall, upon payment in full for all parts of the System
               which have been completed, deliver to Purchaser all completed
               portions of the System and Documentation therefor, including the
               Licensed Software, and deliver to Purchaser all Licensed
               Software. In such event Purchaser shall have the right to have
               the System completed by others and to use the Licensed Software
               for that purpose, and any additional cost associated with the
               completion shall be reimbursed by the Supplier together with
               damages and costs provided by law; or

        28.2.2 Supplier shall remove the System or parts thereof as applicable
               at Supplier's expense, and shall refund to Purchaser all payments
               made by Purchaser to Supplier relating to the terminated Work.
               The appropriate refund shall be paid by Supplier to Purchaser,
               with interest accrued and compounded daily at a rate of two
               percent (2%) above the reference rate charged by the Bank of
               America, NT&SA, San Francisco California, on the first day of
               each month for that month or portion thereof. Full refund shall
               be paid within the thirty (30) consecutive calendar days
               immediately following the date of the written notice of
               termination from Purchaser, with interest accrued from the date
               that the payment was made by Purchaser to Supplier.

28.3    Liquidated Damages:

        28.3.1 In the event the Stage I System is not ready to be put in service
               on or before January 1, 1998, then the Purchaser shall have the
               right to collect from Supplier as liquidated damages the sum of
               $40,000 per day for each day until the Stage System is ready to
               be put in service, but not more than $2,400,000. The collection
               of such liquidated damages shall be Purchaser's exclusive remedy,
               and Supplier's sole liability, for damages for late completion of
               the Stage I System.

        28.3.2 In the event the Stage II System is not ready to be put in
               service on or before January 1, 1999, then the Purchaser shall
               have the right to collect from Supplier liquidated damages in a
               sum to be agreed by

48



the Parties and stated in the Stage II DSOWs. The collection of such liquidated
damages shall be Purchaser's exclusive remedy, and Supplier's sole liability,
for damages for late completion of the Stage I System.

29.  WAIVER

       29.1    None of the provisions of the Contract shall be considered waived
               by either Party unless such waiver is specifically stated in
               writing, and signed by the authorized representative of the Party
               waiving the provision(s).

30.  ASSIGNMENT

       30.1    Subject to Section 30.4 of the Contract neither Party shall
               assign the Contract or any part thereof or interest therein,
               without the prior written consent of the other Party, and any
               assignment without such consent shall be void and of no effect.
               ABB shall provide that Ernst & Young LLP a subcontractor to ABB
               shall not assign its subcontract without the prior written
               consent of Purchaser.

       30.2    Supplier shall notify Purchaser prior to the sale or transfer of
               control of its business to another entity. Neither ABB or Perbt
               Systems may assign, sell or otherwise alienate or reduce its
               interest in Supplier without the prior express written consent of
               Purchaser. Supplier shall notify Purchaser prior to the sale or
               transfer of control of Ernst & Young LLP to another entity.

       30.3     If Supplier enters into any voluntary or involuntary
                receivership, bankruptcy or insolvency proceedings, or
                voluntarily leaves the business of providing the System,
                Purchaser shall have the right to terminate the Contract under
                the default provisions set forth in Section 28.

       30.4    Purchaser reserves the right to assign and delegate its entire
               rights, obligations and interest, under this Contract, or any
               portion thereof, to a successor entity, including but not limited
               to the ISO contemplated by the Restructuring Decision, as
               may be required by the FERC or CPUC. Such an assignment or
               delegation shall become effective upon notice thereof to the
               Supplier.

       30.5    Upon any valid assignment or delegation hereunder, the assignee
               shall thereby assume all rights and obligations of the assignor
               and the assignor shall be relieved of all obligations to
               supplier, including those occurring before the assignment.

49



31.  CONFLICT OF INTEREST/BUSINESS ETHICS

        31.1   No Existing Conflicts Of Interest: Supplier represents and
               warrants that it: (i) has no existing business or other
               relationship, contract or employment which could result in a
               material conflict with the best interests of Purchaser or in any
               way materially compromise the Work to be performed under the
               Contract, (ii) will perform the Work in accordance with the
               Contract without regard to any relationship or obligation that
               Supplier or any Subcontractor may have with any third party not a
               party hereto; and (iii) will disclose in Annex H any such
               relationships or obligations which may reasonably present the
               appearance of such a conflict of interest. Examples of such
               conflicts include, but are not limited to, having any direct or
               indirect affiliation with, or ownership interest in or by, any
               other Party or the Trustee or any member or member-representation
               of any advisory committee or advisor of the Trustee.

        31.2   Reasonable Care: Supplier shall exercise reasonable care and
               diligence to prevent any actions or conditions which could result
               in a conflict of interest within the meaning of Section 31.1.

        31.3   Other Employment: During the term of the Contract, Supplier,
               Major Subcontractors and Ernst & Young LLP, a Subcontractor, will
               not accept any employment or engage in any work which creates a
               material conflict of interest with Purchaser or in any way
               materially compromises the Work to be performed under the
               Contract, within the context of their policies and rules relating
               to business ethics.

        31.4   Gifts: Supplier, its employees, agents or Subcontractors shall
               not offer or cause to be offered gifts, entertainment, payments,
               loans or other services, benefits or considerations of more than
               a nominal value to Purchaser, the Trustee or any advisor or
               advisory committee to the Trustee, or to any of their employees,
               families, vendors, or subcontractors.

        31.5   Accurate Documentation: All financial statements, reports,
               billings, and other documents rendered shall properly reflect the
               facts about all activities and transactions handled for the
               account of Purchaser.

        31.6   Notification: Supplier shall immediately notify Purchaser of any
               and all violations of this Section 31 upon becoming aware of such
               violation.

        31.7   Availability Of Information: Purchaser's duly authorized
               representatives shall have, during the term of the Contract and
               for three (3) years thereafter, access at all reasonable times to
               all of the Supplier's and its Subcontractors' personnel, accounts
               and records of all description, including but not limited to
               computer files, directly relating to this Contract for the
               purpose of verifying

                                     50



               compliance with these Conflict of Interest/Business Ethics
               provisions. The Consultant and its Subcontractors shall preserve
               all such accounts and records for a period of three (3) years
               after the term of the Contract. Purchaser's duly authorized
               representatives shall have the right to reproduce any such
               accounts and records for the purpose as stated in the preceding
               sentence.

        31.8   Subcontractors: Supplier shall include the necessary provisions
               in its Subcontracts to ensure that its Subcontractors comply with
               this Section 31.

        31.9   No Hire: During the term of the Contract and for twelve (12)
               months thereafter, unless otherwise agreed to in writing prior to
               the offer of employment and only to the extent permitted under
               applicable law, each Party agrees that no employee of it or any
               of its Subcontractors who performs part of the Work will offer
               employment with such Party or any of its subsidiaries to any
               personnel of the other Party or its Subcontractors who provide
               services related to the Contract within the preceding twelve (12)
               months without the prior consent of the other Party.

32.     EQUAL OPPORTUNITY LAWS

        FEDERAL REGULATIONS: During the performance of the Contract and to the
        extent they may be applicable to the Contract, the Supplier agrees to
        (i) comply with all laws, orders, and regulations included by summary or
        reference in the following Sections and (ii) require flowdown of all
        such sections in all subcontracts as applicable:

        32.1   EQUAL EMPLOYMENT OPPORTUNITY-EXECUTIVE ORDER NO. 11246, 41 CFR
               PART 60-1: (Contracts of $10,000 or more) Provides that Supplier
               will not discriminate against any employee or applicant for
               employment because of race, color, religion, sex, or national
               origin and further that Supplier shall take affirmative action to
               ensure that applicant and employees are treated without regard to
               their race, color, religion, sex, or national origin.

        32.2   CERTIFICATION OF NONSEGREGATED FACILITIES-41 CFR 60-1.8:
               (Contracts of $10,000 or more) Supplier hereby certifies that
               Supplier will not maintain or provide segregated facilities for
               its employees and will not permit its employees to perform their
               services at any location under Supplier's control, where
               segregated facilities are maintained.

        32.3   CONSTRUCTION CONTRACTORS-AFFIRMATIVE ACTION REQUIREMENTS-41 CFR
               Part 60-4: (Contracts exceeding $10,000) Establishes procedures
               for soliciting and awarding federal or federally assisted
               construction contracts.

                                     51



        32.4   LISTING OF EMPLOYMENT OPENINGS-Executive Order 11701: (Contracts
               of $10,000 or more) Supplier will list employment openings with
               the Employment Development Department in accordance with the
               Vietnam Era Veterans Readjustment Assistance Act of 1974 and
               Executive Order 11701. The affirmative action clause set forth in
               41 CFR 60-250.4 is incorporated herein by reference.

        32.5   EMPLOYMENT OF THE HANDICAPPED-Rehabilitation Act of 1973, 41 CFR
               Part 60-741: (Contracts of $2,500 or more) The affirmative action
               clause and the regulations contained in 41 CFR 60-741.4, and
               Section 504 of the Rehabilitation Act of 1973, as amended (29
               U.S.C. Section 794), which prohibits discrimination on the basis
               of handicaps, are incorporated by reference in this Contract.

        32.6   FILING PROGRAM SUMMARIES AND PREPARING AFFIRMATIVE ACTION
               PLANS-Executive Order 11246, 41 CFR Part 60-2: (Contracts of
               $50,000 or more) If the value of the Contract is $50,000 or more
               and the Supplier has 50 or more employees, the Supplier agrees to
               file appropriate affirmative action program summaries in
               accordance with existing regulations and develop and maintain a
               current written affirmative action compliance program at each of
               its establishments.

        32.7   VIETNAM ERA VETERANS READJUSTMENT ASSISTANCE-Act of 1974, Title
               41, Chapter 60, Part 250: (Contracts of $10,000 or more) The
               affirmative action clause and the regulations pertaining to the
               employment of disabled veterans and veterans of the Vietnam era
               are incorporated by reference in the Contract.

        32.8   AMERICANS WITH DISABILITIES ACT-42 U.S.C. Section 12101, et seq.:
               Supplier agrees that, to the extent it may be applicable to the
               Contract, Supplier shall comply with the Americans with
               Disabilities Act.

        32.9   Purchaser's POLICY: It is Purchaser's policy that Women,
               Minority, and Disabled Veteran Business Enterprises (WMDVBEs)
               shall have the maximum practicable opportunity to participate in
               providing the products and services Purchaser purchases.

        32.10  For all Purchaser contracts, the Supplier agrees to comply, and
               to require all Subcontractors and sub-subcontractors to comply,
               with Purchaser's Equal Opportunity Purchasing Program (EOPP)
               policy, as set forth in Annex I hereto. The Supplier shall
               provide to each prospective Subcontractor a copy of Annex I.

52



        32.11  In addition, for contracts exceeding $500,000 (or $1 Million for
               construction contracts), the Supplier must comply with the Policy
               Regarding Utilization of Small Business Concerns and Small
               Disadvantaged Business Concerns, as described in Annex J hereto.
               The Subcontracting Plan for these contracts must include
               provisions for implementing the terms prescribed in Annex J.

        32.12  Small Business, and Small Disadvantaged Business Subcontracting
               Plans are not required for small business contractors, personal
               service contracts, contracts that will be performed entirely
               outside of the United States and its territories, or
               modifications to existing contracts which do not contain
               subcontracting potential.

        32.13  For all Purchaser contracts, the Supplier shall act in accordance
               with the Subcontracting Plan in the performance of the Work and
               in the award of all subcontracts.

33.     INJURY AND ILLNESS PREVENTION PROGRAM

        33.1   In the performance of the Work under this Contract, Supplier
               acknowledges that it has an effective Injury and Illness
               Prevention Program which meets the requirements of all applicable
               laws and regulations, including but not limited to Section 6401.7
               of the California Labor Code. Supplier shall ensure that any
               Subcontractor hired by Supplier to perform any portion of the
               Work under the Contract shall also have an effective Injury and
               Illness Prevention Program. If the Supplier has any employees in
               California, even if those employees do not perform Work under the
               Contract, the attached Compliance Certificate (Annex K) shall be
               executed by the person with the authority and responsibility for
               implementing and administering such Injury and Illness and
               Prevention Program.

34.     SEVERABILITY

        34.1   Should any section, provision or portion of the Contract be held
               to be invalid, illegal or void, by a court of proper jurisdiction
               then, and in such event, any such section, provision or portion
               shall be deleted from the Contract and the Contract shall be read
               as though such invalid, illegal or void section, provision or
               portion was never included herein, and the remainder of the
               Contract shall nevertheless subsist and continue in force and
               effect until such time as the remaining provisions shall be
               modified or void, as agreed to by the Parties.

53



35.     NOTICES

        35.1   Any invoice notice, request, demand, claim or other communication
               related to the Contract shall be (i) in writing and delivered by
               hand or by telecopier, certified mail (postage prepaid) or
               overnight courier to the other party's representative at its
               address stated in the Contract, (ii) effective when received,
               (iii) identified by the Contract number, and (iv) signed by the
               notifying Party's representative.

        To Purchaser:    Independent System Operator Restructuring Trust
                         Attn: Eduardo Sugay
                         DE&S
                         5000 Executive Parkway - Suite 300
                         San Ramon, CA  94583

        With a copy to:  Skadden, Arps, Slate, Meagher & Flom LLP
                         Attn: Martin R. Hoffman   "
                         1440 New York Avenue, N.W.
                         Washington, DC 20005-2111

        To Supplier:     ISO Alliance, LLC
                         c/o PSC Energy Corporation
                         633 West Fifth Street
                         Suite 3829
                         Los Angeles, California 90071

        With a copy to:  ABB Power T&D  Company Inc.
                         ABB Systems Control Division
                         Attn: Ralph Masiello
                         2550 Walsh Avenue
                         Santa Clara, California 95051

                         Manta &  Welge
                         Attn: John R. Attanasio
                         2005 Market Street
                         Philadelphia, Pennsylvania 19103

                         Perot Systems Corporation
                         Attn: General Counsel
                         12377 Merit Drive
                         Dallas, Texas 75251

35.2    Either Party may change the above information by giving notice of each
        change to the other Party.

                                54



36.  GOVERNING LAW

       36.1    The Contract shall be interpreted, governed and construed under
               the laws of the State of California as if executed and to be
               performed wholly within the State of California.

37.  SECTION HEADINGS

       37.1    Section headings appearing in the Contract are for convenience
               only and shall not be construed as interpretations of text.

38.  SURVIVAL

       38.1    Notwithstanding completion or termination of the Work or of the
               Contract, the Parties shall continue to be bound by the
               provisions of the Contract which by their nature are intended to
               and shall survive such completion or termination.

39.  ENTIRE AGREEMENT

       39.1    The Contract contains the entire agreement and understanding
               between the Parties and merges and supersedes all prior
               representations and discussions pertaining to the Contract,
               including Supplier's proposal (except as specifically
               included). Any changes, exceptions or different terms and
               conditions proposed by Supplier, or contained in Supplier's
               acknowledgment of the Contract, are hereby rejected and shall
               have no force or effect unless expressly stated in the
               Contract or incorporated by a Change Order.

       39.2    No significance shall attach to any differences between any terms
               in the Contract and any analogous terms in any other contract
               between Purchaser and Supplier or between Purchaser and any of
               Supplier's members. No such differences shall be used to
               interpret, construe, or explain any term of the Contract or any
               other such contract.

40.  REPRESENTATIONS

       40.1    Supplier Representations. Supplier hereby represents, warrants
               and covenants to Purchaser that:

               (a)    it has the power and authority to enter into this
                      Agreement and fully to perform its obligations hereunder;
                      and

55



        (b)    all necessary organizational action to approve the execution,
               delivery and performance of this Agreement has been duly taken by
               it, and this Agreement constitutes a valid and binding Agreement
               of such Party enforceable against it in accordance with its
               terms.

40.2    Purchaser Representations. Purchaser hereby represents, warrants and
        covenants to Supplier that:

        (a)    it has the power and authority to enter into this Agreement and
               fully to perform its obligations hereunder;

        (b)    all necessary organizational action to approve the execution,
               delivery and performance of this Agreement has been duly taken by
               it, and this Agreement constitutes a valid and binding Agreement
               of such Party enforceable against it in accordance with its
               terms; and

        (c)    neither the execution and the delivery of this Agreement nor the
               consummation of the transactions contemplated hereby will violate
               any provision of the charter or bylaws of Purchaser.

IN WITNESS WHEREOF the Parties have caused-this Contract to be signed by their
authorized officers or representatives as of this tU-of March, 1997.

INDEPENDENT SYSTEM OPERATOR RESTRUCTURING TRUST

/s/

S. David Freeman, Not in his personal
       capacity but as Trustee for the
       Independent System Operator
       Restructuring Trust

ISO ALLIANCE LLC

/s/


By: Perot Systems corporation       By:
Its: Manager                              A---Member

56