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        <NamePerson>MARK T SAVOFF</NamePerson>
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        <NamePerson>THOMAS A SMITH</NamePerson>
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        <NamePerson>THOMAS R STANDISH</NamePerson>
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        <NamePerson>ANTHONY J TOPAZI</NamePerson>
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        <NamePerson>MICHAEL H DWORKIN</NamePerson>
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        <NamePerson>RICHARD C KELLY</NamePerson>
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        <NamePerson>YAKOUT MANSOOR</NamePerson>
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        <NamePerson>ERNEST J MONIZ</NamePerson>
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        <ProgramServices>13878140</ProgramServices>
        <ManagementAndGeneral>813656</ManagementAndGeneral>
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        <ManagementAndGeneral>3570329</ManagementAndGeneral>
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      <TravelEntrtnmntPublicOfficials>
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        <ManagementAndGeneral>485686</ManagementAndGeneral>
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        <ProgramServices>155062770</ProgramServices>
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        <ManagementAndGeneral>3969087</ManagementAndGeneral>
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      <OtherExpenses>
        <Description>TELEPHONE</Description>
        <Total>2371132</Total>
        <ManagementAndGeneral>2371132</ManagementAndGeneral>
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      <OtherExpenses>
        <Description>PRINTING &amp; PUBLICATIONS</Description>
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        <ManagementAndGeneral>224639</ManagementAndGeneral>
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      <AllOtherExpenses>
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        <ProgramServices>997368</ProgramServices>
        <ManagementAndGeneral>3248742</ManagementAndGeneral>
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        <ProgramServices>268271827</ProgramServices>
        <ManagementAndGeneral>90508063</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
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      <FollowSFAS117>X</FollowSFAS117>
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      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
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      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>false</AccountantCompileOrReview>
      <FSAudited>true</FSAudited>
      <AuditCommittee>true</AuditCommittee>
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      <FederalGrantAuditRequired>true</FederalGrantAuditRequired>
      <FederalGrantAuditPerformed>true</FederalGrantAuditPerformed>
    </IRS990>
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        <CurrentTaxYearMinus1Year>361989545</CurrentTaxYearMinus1Year>
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      <GeneralExplanation>Line 2: Beginning with the redesigned 2008 Form 990, EPRI is reporting its membership dues as gross receipts. These payments are made in connection with the performance of tax exempt scientific research in the public interest, which by definition also incidentally benefits EPRI members who may in certain circumstances have a direct and immediate benefit from such research. The research results may also in certain circumstances have a more direct benefit to the EPRI members than to the general public contemplated within Treasury Regulation Section 1.509(a)-3(g)(2). Line 12: Other income includes income from previously published scientific research reports and software available for sale to the general public and income from related scientific research activities conducted by EPRI in the public interest.</GeneralExplanation>
    </IRS990ScheduleA>
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      <TotalExemptPurposeExpenditures>
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      <TotLobbyingGrassrootMinusNonTx />
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        <CurrentYearMinus1>1000000</CurrentYearMinus1>
        <CurrentYear>1000000</CurrentYear>
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      <LobbyingCeilingAmount>6000000</LobbyingCeilingAmount>
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        <CurrentYearMinus2>250000</CurrentYearMinus2>
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        <CurrentYear>250000</CurrentYear>
        <Total>1000000</Total>
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    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="IRS990ScheduleD">
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      <FinancialDerivatives />
      <CloselyHeldEquityInterests />
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        <Description>LONG TERM INVESTMENTS</Description>
        <BookValue>40768559</BookValue>
        <MethodOfValuation>F</MethodOfValuation>
      </OtherSecurities>
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      <FederalIncomeTaxLiability>0</FederalIncomeTaxLiability>
      <OtherLiabilities>
        <Description>ACCRUED POST RETIREMENT BENEFITS</Description>
        <Amount>12709194</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>DEPOSIT ACCOUNTS</Description>
        <Amount>5002009</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>RETENTION PAYABLE - LONG TERM</Description>
        <Amount>13156</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>17724359</TotalOfAmounts>
      <Form990ScheduleDPartXIV>
        <Identifier>Schedule D, Part X, Line 2:</Identifier>
        <Explanation>EPRI adopted FIN48 (codified as ASC740) in 2009. The adoption in 2009 did not have a material impact on the EPRI financial statements. There was no change in 2010 or 2011. As a result, the financial statements do not have a FIN48 liability recorded and a footnote for FIN48 was not required.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
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      <AcctsActvsOutUSTable>
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      <AcctsActvsOutUSTable>
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      <GrantsToOrgsOutsideUS>
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      <Form990ScheduleJPartIII>
        <Identifier>Questions Regarding Compensation</Identifier>
        <Explanation>Schedule J, Line 1a: First Class Travel: EPRI's CEO and senior vice presidents are required to travel frequently and often for extended periods away from home. To lessen the burden and increase productivity first class travel is allowed and pre-approved for EPRI's CEO and senior vice presidents during periods when the individual is subjected to a heavy travel schedule and extended flight duration. Travel for Companions: EPRI recognizes exceptional employee achievement through an annual award program. EPRI officers and award winners may be reimbursed for companion travel for one guest to attend the annual award ceremony. The travel reimbursement is reported on the employees' Form W-2 as taxable income as required and reported on Schedule J, Part II, Column B, Part iii. Gross-Up Payments: EPRI provides a gross up related to the taxes payable on the additional taxable income reported for the reimbursement of companion travel to attend the annual award ceremony. The following officers received payments for reimbursement of companion travel in 2011. Henry A Courtright $ 375 Charles Thomas Alley Jr $ 772 The following individuals received gross up payments for financial planning services in 2011. Steven R Specker $9,949 Steven T Yamamoto $6,651 Line 4a: Steven T Yamamoto received severance of $174,299 which is reported on his Form W-2 as taxable income as required and reported on Schedule J, Part II, Column B, Part iii. Line 4b: EPRI provides a retirement contribution for its employees based on their compensation. This retirement contribution is usually in the form of an employer contribution to its retirement plans. However, if the calculated retirement contribution exceeds the retirement plan employer contribution limit for the year, the amount of the retirement contribution in excess of the limit is reported on the employees' Form W-2 as taxable income as required and reported on Schedule J, Part II, Column B, Part iii. Michael W Howard $ 46,000 Henry A Courtright $ 20,507 Norma G Formanek $ 12,450 Arshad Mansoor $ 12,387 Bryan J Hannegan $ 4,868 Carolyn R Shockley $ 4,956 Neil M Wilmshurst $ 1,719 Line 7: Officers, as well as employees, are eligible for incentive awards based on EPRI's results against Corporate Goals and each individual's performance and contribution toward achieving those goals. Incentive awards are strongly tied to both corporate and individual performance. Incentive awards are determined based as a percentage of base salary and are considered in the determination by EPRI of a total reasonable compensation package. The EPRI Board approves incentive payments for all officers. SCHEDULE J, PART II: Officers, Directors, Trustees, Key Employees, and Highest Comp. Employees As required by the Form 990 instructions Column B(ii) includes the prior year at-risk incentive accrued benefit actually paid in 2011. This amount is also reported in Column F. In addition, the current year accrual of an at-risk incentive benefit is included in Column C.</Explanation>
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        <NameOfInterestedPerson>DR JAY APT</NameOfInterestedPerson>
        <RelationshipWithOrganization>BOARD DIRECTOR</RelationshipWithOrganization>
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        <Relationship>BOARD DIRECTOR</Relationship>
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        <DescriptionOfTransaction>SON EMPLOYED BY EPRI</DescriptionOfTransaction>
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        <Relationship>OFFICER</Relationship>
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          <NamePerson>ELECTRICITE DE FRANCE</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>27500</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>ENTERGY CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>243650</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>ESKOM</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>134595</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>EXELON CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>151500</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>KOREA ELECTRIC POWER COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>60889</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>NORTHEAST UTILITIES</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>29000</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>PROGRESS ENERGY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>264300</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>SOUTHERN COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>369094</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>TENNESSE VALLEY AUTHORITY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>593987</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>TOKYO ELECTRIC POWER COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>673977</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>XCEL ENERGY INC</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>78923</AmountOfTransaction>
        <DescriptionOfTransaction>FUNDING FOR SERVICES</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>SEE SCHEDULE L PART V FOR FURTHER</NamePerson>
        </NameOfInterestedPerson>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DETAILED INFORMATION ON THE TRANSAC</NamePerson>
        </NameOfInterestedPerson>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>BELOW THE FOLLOWING ARE PAYMENTS B</NamePerson>
        </NameOfInterestedPerson>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>EPRI</NamePerson>
        </NameOfInterestedPerson>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>AMEREN CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>218560</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>AMERICAN ELECTRIC POWER</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>790396</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>CARNEGIE MELLON UNIVERSITY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>255913</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DUKE ENERGY CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>402727</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>ELECTRICITE DE FRANCE</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>5003515</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>ENTERGY CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>2786</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>EXELON CORPORATION</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>82167</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>HAWAIIAN ELECTRIC INDUSTRIES</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>567220</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>KOREAN ELECTRIC POWER COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>996028</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>MASSACHUSETTS INSTITUTE OF TECHNOLO</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>1111876</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>NORTHEAST UTILITIES</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>120110</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>PROGRESS ENERGY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>39368</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>SOUTHERN COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>5801270</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>TENNESSEE VALLEY AUTHORITY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Board Director</Relationship>
        <AmountOfTransaction>417229</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>TOKYO ELECTRIC POWER COMPANY</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>10694</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>XCEL ENERGY INC</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>BOARD DIRECTOR</Relationship>
        <AmountOfTransaction>99000</AmountOfTransaction>
        <DescriptionOfTransaction>PYMT FOR PUBLIC INTEREST R&amp;D</DescriptionOfTransaction>
        <SharingOfRevenues>false</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartV>
        <Identifier>Grants or Assistance Benefitting Interested Persons</Identifier>
        <ReturnReference>Schedule L, Part III</ReturnReference>
        <Explanation>In 2011, EPRI contributed $218,793 to Carnegie Mellon University to support the Carnegie Mellon Electricity Industry Center. This grant may have indirectly benefitted Dr. Jay Apt who is a faculty member of the University. EPRI is filing a protective disclosure of this amount in Schedule L, Part III. Business Transactions Involving Interested Persons Schedule L, Part IV EPRI received payment from the organizations listed in Schedule L, Part IV to conduct services work associated with unrelated business activities. An individual that served as a current or former officer, director, trustee or key employee listed in EPRI's Form 990, Part VII, Section A may have served in a similar position for the listed organizations. All of the listed transactions were on an arms-length basis. EPRI made payment to the organizations listed in Schedule L, Part IV to conduct public interest and supplemental research. An individual that served as a current or former officer, director, trustee or key employee listed in EPRI's Form 990, Part VII, Section A may have served in a similar position for the listed organizations. All of the listed transactions were on an arms-length basis.</Explanation>
      </Form990ScheduleLPartV>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <GeneralExplanation>
        <Identifier>Organization's Mission and Most Important Activities</Identifier>
        <ReturnReference>Form 990, Part I, Line 1 and Part III, Line 1:</ReturnReference>
        <Explanation>EPRI conducts research and development relating to generation, delivery and use of electricity for the benefit of the public. An independent, nonprofit organization, EPRI brings together its scientists and engineers as well as experts from academia and industry to help address challenges in electricity, including reliability, efficiency, health, safety and the environment. EPRI also provides technology, policy and economic analyses to drive long-range research and development planning, and supports research in emerging technologies. EPRI's principal offices and laboratories are located in Palo Alto, Calif.; Charlotte, N.C; Knoxville, Tenn.; and Lenox, Mass. Program Service Activity Form 990, Part III, Line 4a: EPRI's mission is to conduct research &amp; development through science and technology with a view of providing benefits to its member's customers and the U.S. public. To accomplish this objective, EPRI develops and manages research and development programs for improving energy generation, delivery and usage. Program service expenses are direct charges to the research programs. Certain indirect expenses are included in the management and general expense category, as EPRI does not separate these expenses for financial accounting purposes. Governance, Management, and Disclosure Form 990, Part VI Line 4: The material changes in the Bylaws were to: (1) Increase the number of directors from 33 to 35 by 2013 through an increase in the number of Class III (international) directors serving on the Board; (2) Allow for service on the Executive Committee by former chairs of the Board who still serve on the Board; (3) Establish that independent power production entities were eligible to be represented on the Board in Class II director positions and made clarifying changes regarding sections including the record dates and procedures for elections of directors. Line 6: EPRI has three classes of members, namely: (a) Class I (1) Any person, firm, agency or corporation owned by the federal government, or by an agency, authority or instrumentality of the federal government, which is engaged to a substantial degree in the production, transmission or distribution of electric power for public use within the United States; (2) Any cooperative association or cooperative corporation which is engaged to a substantial degree in the production, transmission or distribution of electric power for public use within the United States; (3) Any nonfederal governmental or other public agency, authority or instrumentality, or any non-profit corporation, association or other non-profit organization operating pursuant to governmental oversight or regulation, which is engaged to a substantial degree in the production, transmission or distribution of electric power for public use within the United States; (4) Any corporation, association or other organization operating pursuant to governmental oversight or regulation, which is engaged to a substantial degree in operating, maintaining or assuring reliability of systems for the transmission of electric power for public uses within the United States and Canada; or (5) Any governmental or other public agency, authority or instrumentality within the United States which is engaged to a substantial degree in directly funding research and development related to the production, transmission, distribution, sale, and utilization of electric power, including but not limited to, energy efficiency, renewables, and environmental research. (b) Class II (1) Any investor-owned person, firm or corporation which is engaged to a substantial degree in the production, transmission or distribution of electric power for public use within the United States, or any person controlling such person, firm, corporation or other entity; (2) Any person, firm, corporation, or other entity which is engaged to a substantial degree within the United States in the production or sale of electric power and which is not regulated as a public utility, or any person controlling such person, firm or corporation. (c) Class III Any non-United States government agency or person, firm, corporation or other entity regulated as a utility, which is engaged to a substantial degree in the production, transmission or distribution of electric power for public use outside the United States. Line 7a: In 2011, the members of EPRI's Board of Directors were elected and appointed as follows: Class I members may elect seven members of the Board. The Tennessee Valley Authority and the Bonneville Power Administrator may each appoint one member of the Board. Class II members may elect fifteen members of the Board. Class III members may elect four members of the Board. The EPRI Advisory Council may appoint six members of the Board. Line 7b: Members have the power to amend the articles of incorporation and may have other powers conferred by the Nonprofit Corporation Code of the District of Columbia. Line 11b: An external tax firm and EPRI staff work together to gather the required tax information necessary to complete the tax return. The tax firm prepares an initial draft return and reviews the initial draft return with the finance and legal management team; items are discussed and reviewed. Recommended changes are reflected in the return and a draft tax return is prepared. The draft tax return is presented to the Audit Committee for their review and a copy is provided through a secure link to the Board of Directors. The audit committee may question EPRI management and the external tax firm or ask for clarification on any item on the return. After the Committee has reviewed the tax return, the return is filed with the appropriate governing tax authorities. Line 12c: EPRI requires all employees to complete an annual statement disclosing any conflicts of interest and they have a requirement to update the disclosure on an ongoing basis. Line 15a and 15b: Officers' compensation decisions are determined by the Compensation and Benefits Committee of EPRI's Board of Directors, with the exception of determination of compensation levels for the CEO and new officers, which are usually determined by the Executive Committee of the Board of Directors. The Committees obtain and act in reliance upon appropriate comparability and benchmarking data for the officer positions from a nationally recognized independent source to support determinations of fair market value for the services rendered. The Committees vote on officer compensation at their meetings and documents the approval in the minutes. Line 16b: As defined by the Form 990 instructions, a joint venture or similar arrangement (or a "venture or arrangement") means any joint ownership or contractual arrangement through which there is an agreement to jointly undertake a specific business enterprise, investment, or exempt-purpose activity without regard to (1) whether the organization controls the venture or arrangement, (2) the legal structure of the venture or arrangement. EPRI performs services work and other unrelated business activities and reports that work as unrelated business income for appropriate tax treatment. Particular care is taken in structuring business arrangements such as commercialization transactions, strategic alliances, service centers, and other similar arrangements, including obtaining advice early in the process, in order to protect EPRI's tax-exempt status and minimize liability. Line 19: EPRI makes its governing documents, conflict of interest policy, and audited financial statements for the past 3 years available to the public through its own website. Reconciliation of Net Assets Form 990, Part XI Line 5: The other change in net assets or fund balance is an unrealized loss of $570.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>Electricity Innovation Institute</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>3420 Hillview Avenue</AddressLine1>
          <City>Palo Alto</City>
          <State>CA</State>
          <ZIPCode>94304</ZIPCode>
        </AddressUS>
        <EIN>770562327</EIN>
        <PrimaryActivities>DORMANT</PrimaryActivities>
        <LegalDomicileState>CA</LegalDomicileState>
        <ExemptCodeSection>501(c)(3)</ExemptCodeSection>
        <PublicCharityStatus>9</PublicCharityStatus>
        <DirectControllingEntityName>
          <BusinessNameLine1>na</BusinessNameLine1>
        </DirectControllingEntityName>
        <ControlledOrg>false</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EPRI Solutions Inc</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>942 Corridor Park</AddressLine1>
          <City>Knoville</City>
          <State>TN</State>
          <ZIPCode>37932</ZIPCode>
        </AddressUS>
        <EIN>770449454</EIN>
        <PrimaryActivity>R&amp;D Applic</PrimaryActivity>
        <LegalDomicileState>DE</LegalDomicileState>
        <DirectControllingEntityName>
          <BusinessNameLine1>NA</BusinessNameLine1>
        </DirectControllingEntityName>
        <TypeOfEntity>C Corp</TypeOfEntity>
        <ShareOfTotalIncome>-18837</ShareOfTotalIncome>
        <ShareOfEOYAssets>1910607</ShareOfEOYAssets>
        <PercentageOwnership>1.00000</PercentageOwnership>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EPRI International Inc</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3420 Hillview Avenue</AddressLine1>
          <City>Palo Alto</City>
          <State>CA</State>
          <ZIPCode>94304</ZIPCode>
        </AddressUS>
        <EIN>522357247</EIN>
        <PrimaryActivity>Intl Sales</PrimaryActivity>
        <LegalDomicileState>DE</LegalDomicileState>
        <DirectControllingEntityName>
          <BusinessNameLine1>na</BusinessNameLine1>
        </DirectControllingEntityName>
        <TypeOfEntity>C Corp</TypeOfEntity>
        <ShareOfTotalIncome>446015</ShareOfTotalIncome>
        <ShareOfEOYAssets>5486397</ShareOfEOYAssets>
        <PercentageOwnership>1.00000</PercentageOwnership>
      </Form990ScheduleRPartIV>
      <ReceiptOfIntAnnRentsRoyalties>false</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>false</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>false</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>false</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>false</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>false</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>false</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>false</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>false</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>false</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>true</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>true</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>true</SharingOfFacilities>
      <SharingOfPaidEmployees>true</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>false</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>false</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>false</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>false</OtherTransferFromOtherOrg>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>EPRI INTERNATIONAL INC</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>L</TransactionType>
        <AmountInvolved>3846056</AmountInvolved>
        <MethodOfAmtDetermination>ACTUAL EXPENSE</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>EPRI INTERNATIONAL INC</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>K</TransactionType>
        <AmountInvolved>112189</AmountInvolved>
        <MethodOfAmtDetermination>ACTUAL EXPENSE</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
    </IRS990ScheduleR>
  </ReturnData>
</Return>