Électricité de Strasbourg
Österreichische Elektrizitätswirtschafts-Aktiengesellschaft

A-Power Energy Generation Systems, Ltd. [APWR]
Abu Dhabi National Energy Company PJSC
Abu Dhabi Water & Electricity Authority
Active Power, Inc. [ACPW]
Adams-Columbia Electric Cooperative
AEP Texas Central Company
AES Sul Distribuidora Gaúcha de Energia
AGL Energy Limited
Alabama Power Company
Allegheny Energy, Inc. [AYE]
Alpiq Holding AG
American Electric Power Company, Inc. [AEP]
American Municipal Power-Ohio, Inc.
American Transmission Company LLC
Appalachian Power Company
Arizona Public Service Company
Arkansas Electric Cooperative Corporation
Associated Electric Cooperative Inc.
Atlantic City Electric Company
Austin Energy
Avista Utilities

Baltimore Gas and Electric Company
Bangor Hydro-Electric Company
Basin Electric Power Cooperative
Beacon Power Corporation [BCON]
Better Place, LLC
BKW FMB Energy Ltd
Black Hills Corporation [BKH]
Black Hills Power, Inc.
Blue Ridge Electric Membership Corporation
Bluebonnet Electric Cooperative, Inc.
BlueStar Energy Services
Board of Public Utilities of Kansas City, Kansas
Bonneville Power Administration
Brazos Electric Power Cooperative, Inc.
British Columbia Hydro and Power Authority
Brookfield Renewable Power Inc.
Brownsville Public Utilities Board
Buckeye Power Inc.

California Independent System Operator Corporation
Calpine Corporation [CPN]
Cap Rock Energy Corporation
Caribbean Utilities Company, Ltd.
Carolina Power & Light Company
CE Casecnan Water and Energy Company, Inc.
CE Electric UK Funding Company
CenterPoint Energy Houston Electric, LLC
Centrais Elétricas Brasileiras S.A. - ELETROBRÁS [EBR]
Central Illinois Light Company
Central Illinois Public Service Company
Central Iowa Power Cooperative
Central Maine Power Company
Central Networks
Central Vermont Public Service Corporation [CV]
CESC Limited
CESP - Companhia Energética de São Paulo
CEZ, a. s.
China Hydroelectric Corporation [CHC]
China Nuvo Solar Energy, Inc. [CNUV.OB]
China Power International Development Limited
China Resources Power Holdings Company Limited
China Three Gorges Project Corporation
China Yangtze Power Co Ltd.
Chubu Electric Power Company, Incorporated
Chugach Electric Association, Inc.
City of Huntsville Electric, Natural Gas and Water Systems
City of Independence Power & Light Department
City of Riverside, California, Electric Utility
City of Santa Clara, California, Electric Utility Enterprise Fun
City of Seattle - City Light Department
City of Tacoma Department of Public Utilities
City Utilities of Springfield, Missouri
City Water, Light and Power
Clay Electric Cooperative, Inc.
Cleco Corporation [CNL]
CLP Holdings Limited [CLPHY.PK]
CLP Power Hong Kong Limited
Coast Electric Power Association
Cobb Electric Membership Corporation
Colorado Springs Utilities
Colquitt Electric Membership Corporation
Columbus Southern Power Company
Comisión Federal de Electricidad
Commonwealth Edison Company
Companhia de Transmissão de Energia Elétrica Paulista
Companhia Energética de Minas Gerais - CEMIG [CIG]
Companhia Paranaense de Energia - COPEL [ELP]
Companhia Paulista de Força e Luz
Connexus Energy
Consolidated Edison Company of New York, Inc.
Constellation Energy Group, Inc. [CEG]
Consumers Energy Company
CPS Energy
Cuivre River Electric Cooperative, Inc.

Dairyland Power Cooperative
Dakota Electric Association
Dalton Utilities
Delmarva Power & Light Company
Denton County Electric Cooperative, Inc.
Department of Electric Utilities of the City of Lakeland, Florid
Deseret Generation and Transmission Cooperative
Dominion Resources, Inc. [D]
DTE Energy Company [DTE]
Duke Energy Carolinas, LLC
Duke Energy Corporation [DUK]
Duke Energy Indiana, Inc.
Duke Energy Kentucky, Inc.
Duke Energy Ohio, Inc.
Duquesne Light Company
Duquesne Light Holdings, Inc.
Dynegy Inc. [DYN]

E.ON AG [EONGY.PK]
E.ON Hanse Vertrieb GmbH
E.ON Mitte AG
E.ON U.S. LLC
East Kentucky Power Cooperative, Inc.
Edison International [EIX]
Edison S.p.A.
EDP - Energias de Portugal, S.A. [EDPFY.PK]
El Paso Electric Company [EE]
Electric Power Board of Chattanooga
Electric Power Board of the Metropolitan Government of Nashville
Electric Power Development Co., Ltd
Electric Reliability Council of Texas, Inc.
Electricité de France
Electricity Generating Authority of Thailand
Electricity Supply Board
Electroandina S.A.
Eletropaulo Metropolitana Eletricidade de São Paulo SA
Elia System Operator SA/NV
Elyo
Emera Inc. [EMRAF.PK]
Empresa Distribuidora y Comercializadora Norte S.A. [EDN]
Empresa Energética de Mato Grosso Sul S.A.
Endesa, S.A.
Eneco Holding N.V.
Enel S.p.A. [ENLAY.PK]
Energie Baden-Württemberg AG
Energieversorgung Weser-Ems GmbH
Energy Future Holdings Corp.
Energy Northwest
EnergyUnited Electric Membership Corporation
Entergy Arkansas, Inc.
Entergy Corporation [ETR]
Entergy Gulf States Louisiana, L.L.C.
Entergy Louisiana, LLC
Entergy Mississippi, Inc.
Entergy New Orleans, Inc.
Entergy Nuclear, Inc.
Environmental Power Corporation [EPG]
Espírito Santo Centrais Elétricas S.A.
Essent N.V.
Eugene Water & Electric Board
Evergreen Energy Inc. [EEE]
Exelon Generation Company, LLC

First Electric Cooperative Corporation
FirstEnergy Corp. [FE]
Flint Electric Membership Corporation
Florida Municipal Power Agency
Florida Power & Light Company
Florida Power Corporation
Fort Collins Utilities
Fortis Inc. [FRTSF.PK]
Fortum Corporation
FPL Group, Inc. [FPL]

Gainesville Regional Utilities
Garland Power & Light
Georgia Power Company
Georgia System Operations Corporation
Georgia Transmission Corporation
Glendale Water & Power
Glow Energy Public Company Limited
Golden Spread Electric Cooperative, Inc.
Grand River Dam Authority
Great Plains Energy Incorporated [GXP]
Great River Energy
Green Mountain Power Corporation
Greenville Utilities Commission
GreyStone Power Corporation
Guangzhou Development Industry (Holdings) Co., Ltd.
Gulf Power Company

Hafslund ASA
Hawaiian Electric Industries, Inc. [HE]
HC Energía
Hokkaido Electric Power Co., Inc.
Hokuriku Electric Power Company
Hongkong Electric Holdings Limited [HGKGY.PK]
Hoosier Energy Rural Electric Cooperative, Inc.
Huadian Power International Corporation
Hydro One Inc.
Hydro-Québec

Iberdrola USA
IBERDROLA, S.A. [IBDRY.PK]
IDACORP, Inc. [IDA]
Idaho Power Company
Illinois Power Company
Indiana Michigan Power Company
Indiana Municipal Power Agency
Intermountain Power Agency
Interstate Power and Light Company
IPALCO Enterprises, Inc.
ISO New England Inc.
Itaipu Binacional
ITC Holdings Corp. [ITC]

Jackson Electric Membership Corporation
Jackson Energy Authority
JEA
Jersey Central Power & Light Company
Johnson City Power Board

Kansas Electric Power Cooperative, Inc.
Kenergy Corp.
Kentucky Power Company
Kentucky Utilities Company
Kissimmee Utility Authority
Knoxville Utilities Board
Kyushu Electric Power Company, Incorporated

Lafayette Utilities System
Lansing Board of Water and Light
Lee County Electric Cooperative, Inc.
Liberty Power Corp., LLC
Light Serviços de Eletricidade S.A.
Lincoln Electric System
Long Island Power Authority
Los Angeles Department of Water and Power
Lyntegar Electric Cooperative Inc.

Maine & Maritimes Corporation [MAM]
Manila Electric Company
Manitoba Hydro-Electric
Marietta Board of Lights and Water
Massachusetts Municipal Wholesale Electric Company
Memphis Light, Gas and Water Division
Metropolitan Edison Company
Middle Tennessee Electric Membership Corporation
Midland Cogeneration Venture Limited Partnership
Midwest Energy, Inc.
Midwest Independent Transmission System Operator, Inc.
Minnesota Power
Minnkota Power Cooperative, Inc.
Mississippi County Electric Cooperative, Inc.
Mississippi Power Company
MMC Energy, Inc.
Modesto Irrigation District
Monongahela Power Company
Municipal Electric Authority of Georgia

National Grid USA
National Power Corporation
Nebraska Public Power District
Nevada Power Company
New Braunfels Utilities
New England Power Company
New Hampshire Electric Cooperative, Inc.
New York Independent System Operator, Inc.
New York State Electric & Gas Corporation
Niagara Mohawk Power Corporation
North Carolina Electric Membership Corporation
Northern Electric plc
Northern Indiana Public Service Company
Northern Ireland Electricity plc
Northern Virginia Electric Cooperative
NorthWestern Energy
NRG Energy, Inc. [NRG]
NSTAR [NST]
NSTAR Electric Company
NTPC Limited
NWS Holdings Limited

Ocean Power Technologies, Inc. [OPTT]
OGE Energy Corp. [OGE]
Oglethorpe Power Corporation
Ohio Edison Company
Ohio Power Company
Ohio Valley Electric Corporation
Old Dominion Electric Cooperative
Omaha Public Power District
Oncor Electric Delivery Company
Ontario Power Generation Inc.
Orange and Rockland Utilities, Inc.
Origin Energy Limited
Orlando Utilities Commission
Ormat Technologies, Inc. [ORA]
Otter Tail Corporation [OTTR]
Owensboro Municipal Utilities
Ozarks Electric Cooperative Corporation

Pacific Gas and Electric Company
PacifiCorp
PECO Energy Company
Pedernales Electric Cooperative, Inc.
Pennsylvania Electric Company
Pennsylvania Power Company
Pepco Holdings, Inc. [POM]
Piedmont Municipal Power Agency
Pinnacle West Capital Corporation [PNW]
PJM Interconnection, L.L.C.
Platte River Power Authority
Portland General Electric Company [POR]
Power Authority of the State of New York
Powerco Limited
PowerSouth Energy Cooperative
PPL Corporation [PPL]
PPL Electric Utilities Corporation
Progress Energy, Inc. [PGN]
PSEG Fossil LLC
PSEG Nuclear LLC
PT Perusahaan Listrik Negara (Persero)
Public Power Corporation S.A.
Public Service Company of New Hampshire
Public Service Company of Oklahoma
Public Utility District No. 1 of Chelan County, Washington
Public Utility District No. 1 of Clark County
Public Utility District No. 1 of Cowlitz County, Washington
Public Utility District No. 1 of Snohomish County, Washington
Public Utility District No. 2 of Grant County, Washington
Public Works Commission of The City of Fayetteville, North Carol
Puerto Rico Electric Power Authority
Puget Energy, Inc.

Rappahannock Electric Cooperative
Ratchaburi Electricity Generating Holding Public Company Limited
Rayburn Country Electric Cooperative, Inc.
Red Eléctrica de España, S.A.U.
Reliance Infrastructure Ltd
Rochester Gas and Electric Corporation
RPG Enterprises
RRI Energy, Inc. [RRI]
Rutherford Electric Membership Corporation
RWE Aktiengesellschaft [RWEOY.PK]

Sacramento Municipal Utility District
Salt River Project
San Diego Gas & Electric Company
Sawnee Electric Membership Corporation
Scottish and Southern Energy plc [SSEZY.PK]
Seminole Electric Cooperative, Inc.
Sequachee Valley Electric Cooperative
Shikoku Electric Power Company, Incorporated
Sierra Pacific Power Company
Snapping Shoals Electric Membership Corporation
South Carolina Electric & Gas Company
South Carolina Public Service Authority
South Central Power Company
Southeastern Power Administration
Southern California Edison Company
Southern California Public Power Authority
Southern Company [SO]
Southern Maryland Electric Cooperative, Inc.
Southern Minnesota Municipal Power Agency
Southern Nuclear Operating Company, Inc.
Southern Pine Electric Power Association
Southwest Louisiana Electric Membership Corporation
Southwestern Electric Power Company
Southwestern Power Administration
Sumter Electric Cooperative, Inc.
Sunflower Electric Power Corporation

Tacoma Power
Taiwan Power Company
Tampa Electric Company
Tanjong public limited company
TECO Energy, Inc. [TE]
Tenaga Nasional Berhad
TenneT TSO B.V.
Terna S.p.A.
Texas Municipal Power Agency
Texas-New Mexico Power Company
The AES Corporation [AES]
The Chugoku Electric Power Co., Inc.
The Cleveland Electric Illuminating Company
The Connecticut Light and Power Company
The Detroit Edison Company
The Empire District Electric Company [EDE]
The Israel Electric Corporation Limited
The Jersey Electricity Company Limited
The Kansai Electric Power Company, Incorporated
The Tata Power Company Limited
The Toledo Edison Company
Tohoku Electric Power Company, Incorporated
Tokyo Electric Power Company
Toronto Hydro Corporation
Touchstone Energy Cooperatives
Tractebel Energia S.A.
Trans-Elect, LLC
TransAlta Corporation [TAC]
Tri-State Generation and Transmission Association, Inc.
Tucson Electric Power Company
Turlock Irrigation District

UIL Holdings Corporation [UIL]
Union Electric Company
UniSource Energy Corporation [UNS]
Utah Associated Municipal Power Systems

Vattenfall AB
Vattenfall Europe AG
Virginia Electric and Power Company
Viridian Group PLC
Volunteer Energy Cooperative

Walton Electric Membership Corporation
Warren Rural Electric Cooperative Corporation
Water and Electric Utility Enterprise Funds of the City of Burba
Water and Light and Power Enterprise Funds of the City of Pasade
We Energies
Western Area Power Administration
Western Farmers Electric Cooperative
Western Massachusetts Electric Company
Western Power Distribution Holdings Limited
Wisconsin Power and Light Company
Withlacoochee River Electric Cooperative Inc.
Wolf Creek Nuclear Operating Corporation
Wolverine Power Supply Cooperative, Inc.
WPPI Energy

Xcel Energy Inc. [XEL]

YTL Corporation Berhad

ZBB Energy Corporation [ZBB]