<PAGE>

                                                                   Exhibit 10.24

                   LICENSE AND TECHNICAL ASSISTANCE AGREEMENT
                   ------------------------------------------


THIS AGREEMENT, is made and entered into as of June 7, 1999 by and between
SatCon Technology Corporation, a corporation duly organized and validly existing
under the laws of the State of Delaware, ("Licensor"), and Delco Remy America,
Inc., a corporation duly organized and validly existing under the laws of the
State of Delaware ("Licensee").

RECITALS

WHEREAS, Licensor possesses certain expertise and has developed confidential
technical know-how, data, equipment, manufacturing processes, software and other
trade secret expertise and certain other intellectual property in enhancing
rotating electrical machines and the integration of this enhancement into
certain products manufactured by Licensee as described herein;

WHEREAS, Licensee desires to acquire a license under and utilize and sublicense
such intellectual property in the manufacture of rotating electrical machines by
Licensee as specified below; and

WHEREAS, Licensor desires to grant to Licensee the right to utilize and
sublicense such intellectual property and to provide certain technical
assistance to Licensee upon the terms and conditions set forth herein.

NOW, THEREFORE, in consideration of the mutual promises contained in this
Agreement, and for other good and valuable consideration, the receipt and
adequacy of which is hereby acknowledged, Licensor and Licensee agree to be
legally bound by this Agreement as follows:

Section 1.    Definitions
----------    -----------

Whenever used in this Agreement, the following terms shall have the following
meanings:

1.1  "Affiliate" of a party shall mean any other person or entity which controls
     such party, which the party controls or which is under common control with
     such party. "Control" shall mean the direct or indirect ability to direct
     the management and policies of such party, person or entity, whether
     through ownership, contract or otherwise, provided that any entity which
     owns at least fifty percent 50% of another party shall be considered an
     affiliate of such party, regardless of whether such party would be
     considered to be under the control of such party as defined herein.

1.2  "Effective Date" shall mean the date of this Agreement.

1.3  "Enhanced Products" shall mean Licensee Products incorporating Technology.

1.4  "Field" shall mean technology for enhancing rotating electrical machine
     performance for use with starter/alternator systems.

1.5  "Force Majeure" shall have the meaning provided in Section 1 0. 1 of this
     Agreement.

1.6  "Improvements" shall have the meaning provided in Section 3.2 of this
     Agreement.

1.7  "Incremental Gross Margin" shall mean the product of (i) the difference
     between the weighted average sale price of Enhanced Products and the
     weighted average sales price for comparable Licensee Products, less (ii)
     the direct and indirect cost by Licensee of incorporating the Technology in
     such Licensee Products,
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      where the costs of incorporation include, but are not limited to,
      material, manufacturing labor, plant burden and additional warranty
      expenses.

1.8   "Licensee" shall have the meaning provided in the preamble to this
      Agreement.

1.9   "Licensee Products" shall mean products manufactured by Licensee which
      contain rotating electrical motors, but which do not incorporate
      Technology.

1.10  "Licensor" shall have the meaning provided in the preamble to this
      Agreement.

1.11  "Patents" shall mean, all foreign and domestic: (a) patents in the Field
      which Licensor owns or controls and has the right to license to Licensee;
      and (b) patent applications in the Field (including provisionals,
      divisionals, continuations and continuations-in-part of such applications)
      which Licensor owns or controls and (c) substitutions, extensions,
      reissues, renewals, reexamination certificates and inventors certificates
      relating to the foregoing patents and patent applications, which Licensor
      owns or controls.

1.12  "Prototype Date" shall have the meaning provided in Section 4.1 of the
      Agreement.

1.13  "Specifications" shall have the meaning provided in Exhibit A of this
      Agreement.

1.14  "Technical Information" shall mean confidential technical know-how, data,
      equipment, information, manufacturing processes, software, and other trade
      secrets owned or controlled by Licensor and useful for enhancing rotating
      electrical procedures and for integrating this enhancement into products.

1.15  "Technology" shall mean Technical Information, Patents, copyrights owned
      or controlled by Licensor, registrations, applications or other
      intellectual property protection owned or controlled by Licensor. Patents
      and said other intellectual property protection are listed in Exhibit B
                                                                    ---------


Section 2.  Grant of Rights
----------  ---------------

2.1   Subject to the terms and conditions of this Agreement, Licensor hereby
      grants to Licensee an exclusive, worldwide license, including the right to
      grant sublicenses, under the Technology to make, have made, use, offer for
      sale, import and sell Enhanced Products in the Field. Such exclusive
      license shall become a non-exclusive license in accordance with Section
      4.1 (b).

2.2   The parties estimate that the Technology will be incorporated into
      Licensee Products within one year of completion of the engineering samples
      which meet the performance and commercial requirements set forth in
      Exhibit A hereto (the "Specifications").

2.3   Any invention, improvement, or discovery of Licensee with respect to the
      Technical Information shall be the property of Licensee. Licensee shall be
      permitted, at its own expense, and in its own name, to file for or obtain
      letters patent or take other steps necessary to protect its property.

                                  Page 2 of 16
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2.4  Licensee shall notify any sublicensee hereunder of all rights and
     obligations of Licensee under this Agreement which are sublicensed to such
     sublicensee.  Licensee shall notify Licensor of any sublicense by Licensee
     within sixty (60) days of the effective date of such sublicense.

Section 3.  Technical Information and Documentation
----------  ---------------------------------------

3.1  Licensor will provide Technical Information with respect to the Technology
     including engineering drawings and specifications, testing results,
     material specifications, circuit diagrams, and other information as may be
     necessary for Licensee to manufacture and assemble the Enhanced Products.

3.2  During the term of this Agreement, Licensor will advise Licensee of any
     improvements, modifications, or additions to the Technology and any changes
     regarding engineering drawings and specifications, testing results,
     material specifications, circuit diagrams, and such other information
     (collectively, the "Improvements") as such are developed by Licensor.  Such
     Improvements shall become part of the licensed Technology, subject to the
     terms of this Agreement.

Section 4.  Term
----------  ----

4.1  Unless terminated earlier in accordance with Section 8 hereunder or
     extended by mutual agreement:

     (a)  The exclusive license under Section 2.1 shall remain in full force and
          effect for forty eight (48) months from the date which Licensor
          delivers to Licensee a proof-of-concept prototype which incorporates
          the Technology and meets the Specifications (the "Prototype Date").

     (b)  Upon the expiration of the exclusive license and sublicense pursuant
          to paragraph (a), such license shall become non-exclusive and shall
          remain in full force and effect, in the case of any Enhanced Product
          in a certain jurisdiction, until the later of: (a) ten (10) years from
          the "Prototype Date" in such jurisdiction; or (b) the expiration of
          the last to expire of the Patents used in the Enhanced Product in such
          jurisdiction.  For all purposes relating to this Agreement, a patent
          shall be deemed to cover a product if manufacture, use, or sale of
          such product infringes at least one claim of such patent in accordance
          with established principles of claim interpretation in the
          jurisdiction where the patent applies.

Section 5.  Technical Assistance
----------  --------------------

5.1  As mutually agreed upon by the parties for up to a total of ten (10) days,
     Licensee shall send its employees to be trained by Licensors personnel in
     Licensors establishments.  Licensor's technical personnel shall advise and
     assist Licensee's or its designees technical personnel on matters
     concerning the functionality, design, failure modes, manufacturing,
     sourcing of components, and integration of the Technology into Licensee
     Products.

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                          [INTENTIONALLY LEFT BLANK]

                                 Page 4 of 16
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Section 7.  Non-Disclosure/Confidentiality
----------  ------------------------------

7.1  Licensee agrees to maintain the Technology as secret and confidential and
     not to disclose the Technology to any third person or party, except:

          1.   as expressly authorized by this Agreement;

          2.   to its Affiliates, sublicensees, employees, agents, consultants,
               and other representatives, to accomplish the purposes of this
               Agreement so long as such persons are under an obligation of
               confidentiality no less stringent than as set forth herein;

          3.   as necessary to obtain approval from a governmental agency in
               order to market the Enhanced Products;

          4)   as otherwise may be required by law, regulation or judicial
               order, or;

          5)   as embodied in Enhanced Products.

     This Article 7 shall survive any cancellation, termination (whether for
     cause or otherwise) or expiration of this Agreement.

7.2  The obligation with respect to the Technology disclosed by Licensee shall
     not apply to the extent that the Licensee can demonstrate that:

     (a)  the disclosed information at the time of disclosure is publicly
          available;

     (b)  the disclosed information became publicly available by publication or
          otherwise, except by breach of the provisions of this Agreement;

     (c)  the disclosed information can be established by written evidence to
          have been in the possession of the receiving party at the time of
          disclosure or to have been independently developed by employees of the
          receiving party who did not have access to the Technology; or

     (d)  the disclosed information is received from a third party not under a
          duty of confidentiality to the disclosing party without similar
          restrictions and without breach of this Agreement.

7.3  In the event Licensee shall be compelled by any court having jurisdiction
     over Licensee to disclose any part of the Technology, Licensee shall
     provide Licensor with immediate notice of such request so that Licensor may
     seek a protective order, or take such other action as Licensor may deem
     appropriate.  In no event shall Licensee disclose such information without
     notifying Licensor prior to disclosure.

                                  Page 5 of 16
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Section 8.  Default
----------  -------

8.1  The occurrence of one or more of the following events shall constitute a
     "Default" under this Agreement:

     (a)  Licensee shall fail to pay any amount when due under this Agreement,
          and such amount remains unpaid thirty (30) days after such due date;

     (b)  Licensee shall breach any other provision of this Agreement and shall
          fail to cure such breach within sixty (60) days after receipt of
          Licensor's written notice to Licensee of such breach;

     (c)  Licensee shall breach Section 7 of this Agreement; or

     (d)  either party shall be unable to perform a material obligation (other
          than the non-payment of fees or expenses due hereunder) of this
          Agreement as a result of a Force Majeure, which Force Majeure lasts in
          excess of three (3) months.

8.2  In the event of a Default, the non-defaulting party shall have the right to
     immediately terminate this Agreement and shall be entitled to damages,
     including attorney's fees, incurred as a result of such default, in
     addition to such other relief afforded under this Agreement provided,
     however, that in no event shall either party be entitled to indirect,
     punitive, or exemplary damages as a result of a Default.

Section 9.  Force Majeure
----------  -------------

9.1  Neither party shall be liable to the other if, and to the extent that the
     performance or delay in performance of any of its obligations under this
     Agreement is prevented, restricted, delayed, or interrupted due to
     circumstances beyond the reasonable control of such party, including, but
     not limited to government legislation, fires, floods, explosions,
     epidemics, accidents, acts of God, wars, riots, strikes, lockouts or other
     concerted acts of workmen, acts of government and/or shortages of materials
     (a "Force Majeure").  The party claiming an event of Force Majeure shall
     promptly notify the other party in writing, and provide full particulars of
     the cause or event and the date of first occurrence thereof, as soon as
     possible after the event and also efforts to remove the cause of non-
     performance, and both parties shall resume performance hereunder with the
     utmost dispatch when such cause is removed unless the Agreement is
     previously terminated under Section 8.

9.2  A condition of Force Majeure shall not relieve a party to pay any sum due
     under this Agreement prior to or during the event of Force Majeure.

                                  Page 6 of 16
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Section 10.  Notices
--------------------

10.1  All notices and other communications under this Agreement shall be in
      writing and may be given by delivering the same by hand at, or by sending
      the same by an overnight courier that maintains verification of delivery,
      or by facsimile, with confirmed answer back, to the relevant address set
      out below or such other address as either Party may notify the other from
      time-to-time. Any such notice given as set forth above shall be deemed to
      have been given or received at the time of delivery (if delivery by hand)
      and upon verified receipt (if sent by post, facsimile, or overnight
      courier).

If to Licensor to:

SATCON TECHNOLOGY CORPORATION
161 First Street
Cambridge, MA 02142
Telephone: (617) 661-0540
Facsimile: (617) 661-3373
Attention: Michael C. Turmelle, VP & CFO

If to Licensee to:

DELCO REMY AMERICA, INC.
2902 Enterprise Drive
Anderson, IN 46013
Telephone: (765) 778-6565
Facsimile: (765) 778-6454
Attention: Sr. VP, Heavy Duty Systems Division

Neither party shall by mere lapse of time, without giving notice, be deemed to
have waived any breach by the other party of any of the provisions of this
Agreement.

Section 11.  Warranty
---------------------

11.1  Licensor represents and warrants that it has the appropriate corporate
      authority to enter into and perform its obligations under this Agreement
      and that Licensor's execution, delivery and performance of this Agreement
      will not violate any other agreements or commitments of Licensor.

11.2  Licensor represents and warrants that it has not entered into any
      agreements related to the license of the Technology in the Field and shall
      have neither the right nor ability to use, assign, license, or sell,
      without the prior written consent of Licensee, all or any part of the
      Technology in the Field.

11.3  Licensor represents and warrants that none of the components of the
      Technology as it exists on the date hereof infringe upon any published
      third party patent known to Licensor.

11.4  Licensor represents and warrants that it holds good title to all of the
      various components of the Technology free and clear of any third party
      claims, interests, assessments or licenses, and that it is otherwise
      vested with such title to the Technology, and each of its constituent
      parts, which might be necessary to grant the license pursuant to this
      Agreement.

                                 Page 7 of 16
<PAGE>

11.5  Except as provided in Section 12 below, in no event shall either party be
      liable to the other for any consequential, incidental, special, punitive,
      or other indirect damages including, but not limited to, damages related
      to lost profits or lost data.

Section 12.  Indemnity
----------------------

12.1  Licensor will defend, indemnify, and hold Licensee harmless from and
      against any and all claims, demands, liabilities, actions, suits, or
      proceedings asserting that the Technology infringes any protected trade
      secret, patent or copyright of another and will pay resulting costs,
      damages, and attorney fees finally awarded (except that in no event will
      Licensor be liable for lost profits or for any other incidental,
      consequential, special, or punitive damages other than such damages
      awarded against Licensee in favor of a third party), provided that:

      (a)  Licensee promptly notifies Licensor of the claim;

      (b)  Licensee cooperates with Licensor in the defense; and

(c)   Licensor has sole control of the defense and all related settlement
      negotiations.

The right of indemnification shall survive the termination of this Agreement.

12.2  Licensee will defend, indemnify, and hold Licensor harmless from and
      against any and all claims, demands, liabilities, actions, suits, or
      proceedings asserting that Licensee's improvements to the Technology were
      created in violation of the protected trade secrets, patent or copyright
      arising solely out of Licensee's activities under this Agreement
      including, but not limited to, product liability claims arising out of the
      design or manufacture of Enhanced Products incorporating or utilizing
      Licensee's improvements, and Licensee will pay resulting costs, damages,
      and attorney fees finally awarded (except that in no event will Licensee
      be liable for lost profits or for any other incidental, consequential,
      special, or punitive damages other than such damages awarded against
      Licensor in favor of a third party) provided that:

      (a)  Licensor promptly notifies Licensee of the claim;

      (b)  Licensor cooperates with Licensee in the defense; and

      (c)  Licensee has sole control of the defense and all related settlement
           negotiations.

The foregoing states the entire obligation of Licensee, and the sole remedies of
Licensor, with respect to infringement of third party proprietary rights.

Section 13.  Settlement of Disputes
-----------------------------------

13.1  Any dispute or controversy concerning the calculation or payment of
      royalties and any other amounts that may be due pursuant to this Agreement
      shall be finally settled by arbitration held according to the commercial
      arbitration rules, in effect on the date of this contract, of the American
      Arbitration Association ("AAA"). The arbitration shall be held in Chicago,
      Illinois in accordance with the substantive laws of Indiana.

                                 Page 8 of 16
<PAGE>

13.2  The arbitration panel shall consist of three arbitrators; each party may
      appoint one arbitrator and a third arbitrator shall be appointed by
      agreement of the two party-appointed arbitrators. In the event that the
      party-appointed arbitrators cannot select the third arbitrator, then the
      AAA shall appoint a third arbitrator. The panel of arbitrators shall base
      its decision on the testimony of accountants, engineers, and other
      technical experts which each party may present.

13.3  Judgment upon the award of such arbitrators shall be final and binding on
      both parties, and any right of appeal, therefore, is hereby waived.
      Judgment upon the award rendered may be entered in any court having
      jurisdiction, or application may be made to such court for confirmation of
      the award.

13.4  Unless otherwise divided or awarded by the panel, the costs for
      arbitration shall be finally paid by the losing party or, if the panel
      rules in favor of both parties, shall be paid by each party in proportion
      to their respective awards, except that each party shall bear its own
      attorney's fees.

Section 14.  Miscellaneous
--------------------------

14.1  The terms of this Agreement can be waived or modified only by an express
      agreement in writing signed by both parties.

14.2  This Agreement and the agreements specifically referred to herein,
      constitute the entire understanding of the parties with respect to the
      Technology and no representations, promises, warranties, covenants, or
      undertakings other than those contained in these agreements exist.

14.3  This Agreement shall be governed by the laws of Indiana, notwithstanding
      the conflict of laws of any other state; provided, however, that if a
      patent dispute shall arise, the patent law of the country in which the
      patent is registered shall apply.

14.4  In the event any provision of this Agreement is held to be unenforceable
      by any court, such provision shall be reformed by the court and the
      parties to the extent that it can be reformed, and to the extent it
      cannot, such provision shall be severed from the Agreement and the
      remaining provisions shall remain fully enforceable and binding upon the
      parties.

14.5  Upon expiration or termination of this Agreement, the provisions relating
      to confidentiality, proprietary protection of the Technology, limitation
      of liability, audit and verification and Licensee's obligation to Licensor
      for fees accrued but unpaid shall survive.

14.6  This Agreement shall be binding upon and shall inure to the benefit of the
      parties and their respective successors and assigns.

14.7  The following Exhibits are part of this Agreement:

          Exhibit A  Specifications - Minimum Performance and Commercial
                     Requirements for Proof of Concept Prototype Verification

          Exhibit B  Patents and Patents under Submission

                                  Page 9 of 16
<PAGE>

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date set
forth above.

Licensor:                  Licensee:


SATCON TECHNOLOGY CORPORATION        DELCO REMY AMERICA, INC.

/s/ Michael C. Turmelle              /s/ Richard L. Stanley

By                                   By

Vice President & CFO                 President

Title                                Title

                                 Page 10 of 16
<PAGE>

Exhibit A: Specifications - Minimum Performance and Commercial Requirements For
Proof of Concept Verification


Testing Requirements
--------------------

1.   For proof of concept verification one unit will be tested.
2.   Performance - Prior to all tests, units are to be initially tested as
     specified in Section B. 1, except that output is not to be stabilized.
     Unless specified otherwise, after each test in each portion of Section C,
     the following requirements must be met for the alternator to pass the test:

     2.1.  Output current must be within ++5% of the original performance.

     2.2.  Voltage regulation must be in tolerance and within ++0.2V (12V
           alternators)/ ++0.4V (24 & 32V alternators) of initial reading when
           voltage is checked at 8,000 rpm with a 20 amp load at room
           temperature.

3.   Temperature- All tests are to be performed at room temperature, except as
     noted. Room temperature is considered to be 250C ++30C. All other
     temperatures are ++50C.
4.   Speed- Alternator speed is stated for each test. Tolerance is ++l 0% of
     specified speed for each test.

Performance Specifications
--------------------------

1.   Stabilized performance
     1. 1. Industry reference specification: SAE J56
     1.2.  Test Conditions: Unit is to be tested at each voltage and at each
           temperature.
           1.2.1.   Voltage: Increase regulator set point to achieve full field
                    current
           1.2.2.   Speed: 1,000 rpm to 8,000 rpm
           1.2.3.   Electrical load: Load as needed to achieve 14V/28V set
                    point.
           1.2.4.   Temperature: 25'C and 93'C.
           1.2.5.   Duration: Less than ++2.0/1.0 Amp change (12V/24V
                    alternators) within 10 minutes, or 30 minute test time
                    minimum.
           1.2.6.   Procedure: per SAE J56, measure output with alternator
                    temperature stabilized at several discrete speeds and with
                    regulator setting raised to assure that the regulator is
                    full on.
           1.2.7.   Passing criteria: Output of unit while operating in the
                    active bridge mode must be at least 45 % higher than in the
                    diode mode at 1500 rpm.
2.   Input characteristics:
     2.1.  Plot alternator typical input characteristics (efficiency, torque,
           power) following test conditions and procedure in section B.1.
           Efficiency of the unit while in active bridge mode should be equal to
           or better than the unit in diode mode over the entire speed range.

     2.2.  Temperature: 250C only

                                 Page 11 of 16
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3.   Indicator light flicker (alternators with Indicator or Lamp terminal only)
     3.1.  Industry reference specification: None
     3.2.  Test Conditions:
           3.2.1.  Voltage: Appropriate for alternator model (using battery)
           3.2.2.  Speed: 2,000 rpm and 5,000 rpm
           3.2.3.  Electrical load: 1 amp to rated output at each speed
           3.2.4.  Temperature: Room temperature
           3.2.5.  Duration: N/A
           3.2.6.  Procedure:
                   3.2.6.1. Connect 2W light (12V alternators)/3W light (24V
                   alternators) to Indicator light (or similar) terminal
                   3.2.6.2. Vary load per 3.2.3 at each speed
           3.2.7.  Passing criteria: No noticeable flicker of light
4.   Parasitic current draw
     4.1.  Industry reference specification: None
     4.2. Test Conditions
          4.2.1.   Voltage: 12.8V/25.6V (1 2V/24 & 32V alternators)
          4.2.2.   Speed: 0 rpm- alternator does not rotate during this test
          4.2.3.   Electrical load: None
          4.2.4.   Temperature: Room temperature
          4.2.5.   Duration: N/A
          4.2.6.   Procedure: With alternator connected to battery or power
                   supply and no connections to any other terminals (except
                   ground), measure parasitic current draw into B+ and sense (if
                   used) terminals
          4.2.8.   Passing criteria:
                   4.2.8.1. Less than or equal to 2.0 mA: 12V alternators
                   4.2.8.2. Less than or equal to 3.0 mA: 24 and 32V alternators
5.   Maximum Speed Range
     5.1. The maximum continuous operating speed for the alternator is 1 0,000
          rpm.
    5.2. The maximum intermittent operating speed for the alternator is 12,000
         rpm.
6.  Voltage regulation vs. temperature (flat compensated regulators only- refer
    to regulator performance specification for temperature compensated
    regulators). The nominal voltage setting is defined as the voltage at 8,000
    rpm with a 50% load at room temperature..
    6.1.  Industry reference specification: None
    6.2.  Test Conditions
          6.2.1.  Voltage: Regulator controlled
          6.2.2.  Speed: 6,000 rpm
          6.2.3.  Electrical load: 50% of available output
          6.2.4.  Temperature: -350C, +250C, and +1250C regulator backplate
                  temperature
          6.2.5.  Duration: Less than 30 seconds (to avoid voltage change due to
                  alternator selfheating)
          6.2.6.  Procedure: Run alternator at each temperature condition until
                  voltage stabilizes [less than 0.02V (12V)/0.04V (24 & 32V)]
                  change in 10 seconds).
          6.2.7.  Passing criteria: Voltage must remain within ++0.7V
                  (12V)/++1.2V (24V) of nominal throughout the temperature
                  range.

                                 Page 12 of 16
<PAGE>

7.      Voltage regulation vs. load. Nominal voltage setting is defined as the
        voltage at 8,000 rpm with a 20 amp load at room temperature.
        7.1.  Industry reference specification: None
        7.2.  Test Conditions
              7.2.1.  Voltage: Regulator controlled
              7.2.2.  Speed: 6,000 rpm
              7.2.3.  Electrical load: Vary from 5% to 95% of available output
              7.2.4.  Temperature: Room temperature
              7.2.5.  Duration: Less than 30 seconds (to avoid voltage change
                      due to alternator selfheating)
              7.2.6.  Procedure: Run alternator at stated speed and vary load
                      from minimum to maximum. Record voltage variance.
             7.2.7.   Passing criteria: Voltage must remain within ++0.3V
                      (12V)/++0.6V (24 & 32V) of nominal at all loads.
8.       Voltage regulation vs. speed. Nominal voltage setting is defined as the
         voltage at 8,000 rpm with a 20 amp load at room temperature.
         8.1.  Industry reference specification: None
         8.2.  Test Conditions
               8.2.1.  Voltage: Regulator controlled
               8.2.2.  Speed: 2,000 to 1 0,000 rpm
               8.2.3.  Electrical load: 20 amps
               8.2.4.  Temperature: Room temperature
               8.2.5.  Duration: Less than 30 seconds (to avoid voltage change
                       due to alternator selfheating)
               8.2.6.  Procedure: Run alternator with stated load and vary speed
                       from minimum to maximum. Record voltage variance.
               8.2.7.  Passing criteria: Voltage must remain within ++0.2V
                       (12V)/++0.4V (24V) of nominal at all alternators speeds
                       between 2,000 and 10,000 rpm
9.       Non-Battery Operation
         9.1.  Industry reference specification:
         9.2.  Test Conditions
               9.2.1.  Voltage: Regulator controlled
               9.2.2.  Speed: Vary from 2,000 to 1 0,000 rpm
               9.2.3.  Electrical load: Vary from 5% to 95% of available output
                       at 6000 rpm.
               9.2.4.  Temperature: Room temperature
               9.2.5.  Duration: Less than one minute (to avoid voltage change
                       due to alternator selfheating)
               9.2.6.  Procedure: Begin with alternator running in it's normal
                       configuration with a battery at 6000 RPM and 50%
                       available load. Disconnect battery only. Run alternator
                       with stated load and vary speed from minimum to maximum;
                       record voltage variance, then run alternator at stated
                       speed and vary load from minimum to maximum. Record
                       voltage variance.
               Passing criteria: Voltage must remain within the specified
               maximum voltage PLUS 2 volts, and the specified minimum voltage
               MINUS 2 volts (if the specified voltage is 14.0 ++0.3 volts, the
               non-battery specification would be 11.7 to 16.3 volts).
10.       Operating Temperatures
1 0. 1. The alternator shall be capable of operating continuously at inlet
        temperatures of -400C
               to 1050C.

                                 Page 13 of 16
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Output Voltage Ripple
The alternator output voltage peak to peak ripple at full load shall not exceed
 .0005 times the alternator speed in RPM in both the active bridge and diode
modes. Example: 1.5Vp-p @ 3000 GRPM.

 C.)  ELECTRICAL TESTS
 1. Capability to withstand voltage transients, reverse polarity, load dump
     1. 1.   Load dump
             1. 1. 1.   Industry reference specification: SAE J1455 Section
                        4.11.2.2
             1.1.2.     Test Conditions
                        1.1.2.1.  Voltage: Load applied to reduce output voltage
                                  to 13/26 volts (1 2V/24V alternators)
                        1.1.2.2.       Speed: 10,000 rpm
                        1.1.2.3.       Electrical load: Full available output
                        1.1.2.4.       Temperature: Room temperature
                        1.1.2.5.       Environmental conditions: NA
                                 1.1.2.6.        Duration: Maintain above
                                            conditions for at least 30 seconds
                                            before test.
                                 1.1.2.7.        Procedure: Quickly remove all
                                            loads and measure resulting

                               voltage peak with an oscilloscope.

                        1.1.2.8.  Passing criteria: Voltage peak less than 40/60
                                   volts for 12/24-32 volt alternators.
                                   Alternator
                                  must operate properly per section A.2.
     1.2.    Reverse polarity
             1.2.1.    Industry reference specification: SAE J1455, Section
                       4.11.
             1.2.2.    Test Conditions
                       1.2.2.1.    Voltage: As described in procedure.
                       1.2.2.2.    Speed: 0 rpm- alternator does not rotate
                                   during this test
                       1.2.2.3.    Electrical load: None
                       1.2.2.4.    Temperature: Room temperature
                       1.2.2.5.    Environmental conditions: NA
                       1.2.2.6.    Duration: 1 minute
                         1.2.2.7. Procedure: Apply 24/48 volts from a power
                                      supply or battery with 0.2/0.4 ohm source
                                      impedance for 12/24-32 volt alternators.
                         1.2.2.8.     Passing criteria: Per section A.2.
     1.3.    Voltage transients
             1.3.1.    Industry reference specification: SAE J1455, Section
                       4.11.2.2-Twice voltage jump start.
             1.3.2.    Test Conditions
                       1.3.2.1.       Voltage: 24V/48V for 12/24-32 volt
                                       alternators
                       1.3.2.2.   Speed: 0 rpm- alternator does not rotate
                                   during this test
                       1.3.2.3.   Electrical load: None
                       1.3.2.4.       Temperature: Room temperature
                                 1.3.2.5.      Environmental conditions: NA
                                 1.3.2.6.      Duration: 5 minutes
                                 1.3.2.7.      Procedure: Apply test voltage to
                                               Output terminal for specified
                                          time.
                       1.3.2.8.                Passing criteria: Per section
                                               A.2.

                                 Page 14 of 16
<PAGE>

1.4.  Transient immunity
      1.4.1.  Test Conditions
              1.4.1.1.        Voltage: Regulator controlled
              1.4.1.2.        Speed: 5,000 rpm
              1.4.1.3.        Electrical load: 20 amps
              1.4.1.4.        Temperature: Room temperature
              1.4.1.5.        Environmental conditions: NA
              1.4.1.6.        Duration: 10 Pulses at 1 second intervals
              1.4.1.7.        Procedure: Transient consists of a rise to 600
                         volts or a fall to -600 volts immediately decaying back
                         to system voltage with a 1 millisecond time constant
                         and a source impedance of 20 ohms. With alternator
                         operating as specified, apply a total of 10 positive
                         and 10 negative transients to all available terminals,
                         one terminal at a time. Time between positive and
                         negative transient series is not defined.

              1.4.1.8.        Passing criteria: Per section A.2.

                                 Page 15 of 16
<PAGE>

Exhibit B: Patent Applications and Patents


         Patent Applications               Resulting Patent
         47706-P                           Pending
         47705-P                           Pending
         47751 -P                          Pending
         47707-P                           Pending
         47708-P                           Pending

                                 Page 16 of 16