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Alabama Gas
Alabaster Water Board
Alaska Elect Light & Power
AltaGas Utilities
Amerada Hess
American Electric Power
Anaheim Public Utilities
Anchorage Water & Wastewater
APS
Aquila, Inc
Arizona Public Service
Arkansas Oklahoma Gas
ATCO Electric
ATCO Gas
Atmos Energy
Austin Energy
Avista
AWWA Research Foundation
Azusa Light & Water
Bailey County Electric Coop
Baltimore Gas & Electric
Barbados Light & Power
Barrow Utilities & Electric Coop
Bartholomew County REMC
Benton County PUD #1
Bermuda Electric Light
Big Rivers Electric
Black Hills Corp
Black Hills Power
Blue Grass Energy Coop
Bluebonnet Electric
Board of Water Supply
Bristol Tennessee Essential Svcs
Brownsville Public Utilities
Bryan Texas Utilities
C.A La Electricidad De
Caracas
California Water Service
Carteret-Craven Electric Coop
Cascade Natural Gas Corp
Cedar Falls Utilities
CenterPoint Energy
Central Alabama Electric Coop
Central Maine Power
Central Service Assoc
Charleston Water System
Chelan County PUD
Chester Water Authority
Chesterfield County Utilities
Chicopee Electric Light
City of Albuquerque
City of Alexandria
City of Anaheim
City of Arlington
City of Atlanta
City of Aurora
City of Aurora Water
City of Bellevue
City of Bloomington
City of Boulder
City of Bradenton
City of Calgary
City of Carrollton
City of Cedar Rapids
City of Cleveland Water
City of Dallas
City of Dallas Communication & Info
City of Danville
City of Denton
City of Duncanville
City of Edmond
City of Escondido
City of Fayetteville Public Works Commission
City of Garland
City of Georgetown
City of Greensboro
City of Hamilton Utilities
City of High Point
City of Hot Springs
City of Houston
City of Huntington Beach
City of Independence
City of Irving
City of Long Beach
City of Lubbock
City of Oklahoma City
City of Owensboro
City of Pasadena
City of Phoenix
City of Plano
City of Portland
City of Richmond
City of Riverside
City of Rock Hill Utilities
City of Rocky Mount
City of Sacramento
City of San Antonio
City of San Diego
City of Santa Rosa
City of Saskatoon
City of St Paul
City of Surprise
City of Tacoma
City of Tallahassee
City of Tempe
City of Toledo
City of Tulsa
City of Virginia Beach
City of Waco
City of Wichita
City of Wichita Falls
City Public Service of San Antonio
City Utilities of Springfield
Clallam County PUD #1
Clark Public Utilities
Clayton County Water Authority
Cleco Power LLC
Coast Electric Power
Cobb Electric Membership Corp
Cobb Energy Management Corp
Colorado Springs Utilities
ComEd
Comgas - Compania De Gas Sao Paulo
Commissioners of Public Works
Commissioners of Public Works/ Charleston
Con Edison Solutions
Conectiv Power Delivery
Connexus Energy
CONServe Corp
Consolidated Edison Co of NY
Consolidated Utility District
Constellation NewEnergy
Consumers Energy
Corn Belt Energy
CoServ Electric
County of Henrico
CPS Energy
Cuivre River Electric Coop
Cumberland Electric Membership Corp
Dallas Water Utilities
DC Water & Sewer Authority
Denver Water
Denver Water Board
Des Moines Water Works
Detroit Water & Sewerage Dept
Direct Energy
Direct Energy, LP
Division of Water, Cleveland Ohio
Dixie Electric Membership Corp
Dominion Resources
Dominion Virginia Power
Duke Energy
E.ON US
East Bay Municipal Utility District
Econnergy Energy
Edmond Electric
ElectriCities of North Carolina
Empire District Electric
Enbridge Gas Distribution
Energy East Corp
EnergySouth
EnergyUnited
Enersource Hydro Mississauga
ENMAX Power Corp
Enwin Utilities Ltd.
EPB
EPCOR Energy Services
EPCOR Utilities
ESKOM
Exelon Corp
Fairfax County Water
Authority
Farmers Electric Coop
Fayetteville Public Works Commission
Firelands Electric Coop
First Choice Power
Flint Energies
Florida Power & Light
FortisBC
Fulton County
Gainesville Regional
Utilities
Garland Power & Light
Gaz Metropolitain
Georgia Natural Gas
Georgia Power
Glendale Water & Power
Golden State Water
Golden Valley Electric
Grand Valley Rural Power Lines
Granger Hunter Improvement District
Grant County PUD #2
Grays Harbor PUD #1
Great Lakes Energy Coop
Green Mountain Energy
Greenville Utilities Commission
Hampton Roads Sanitation
District
Hawaiian Electric
Heartland Rural Electric Coop
Hendricks Power Coop
Highline Electric Association
HILCO Electric Coop
Hillsborough County PUD
Honolulu Board of Water Supply
Hood River Electric Coop
Horry Electric Coop
Huntsville Utilities
Hydro One
Imperial Irrigation District
Infinite Energy
Intermountain Gas
Jackson Energy Authority
Jackson Energy Coop
Jamaica Public Service
JEA
Johnson County Wastewater
Jones-Onslow Electric Membership Corp
Kansas City Board of Public
Utilities
Kansas City Power & Light
Keys Energy Services
KeySpan Energy Corp
Kinder Morgan, Inc.
Kissimmee Utility Authority
Knoxville Utilities Board
LA Dept of Water & Power
Laclede Gas
Lafayette Utilities Systems
Las Vegas Valley Water District
Lee County Electric Coop
Lewes Board of Public Works
Lincoln Electric System
Linn County Rural Electric Coop
London Hydro
Long Island Power Authority
Lubbock Power & Light
Madison Gas & Electric
Manatee County Govt
Marietta Board of Lights & Water
Marquette Board of Light & Power
Martin County
McMinnville Water & Light
Medina Electric Coop
Metro Water Services
Miami-Dade Water & Sewer Dept
Midwest Energy
Miton Hydro Distribution
Mobile Area Water & Sewer
Mobile Gas Service Corp
Modesto Irrigation District
Montana-Dakota Utilities
Montgomery Water Works Board
Moorhead Public Service
Mount Dora Municipal Electric Dept
Municipal Light & Power
Nashville Electric Service
National Fuel Gas
National Grid USA
National Rural Telecommunications Coop
National Water Commission
Nevada Power
New Jersey Natural Gas
New Jersey Resources Corp
New River Light & Power
Newfoundland Power
Nicor Gas
NiSource
North Arkansas Electric Coop
Northeast Oklahoma Electric Coop
Northeast Utilities
Northeastern REMC
Northwestern Electric Coop
NorthWestern Energy
Nova Scotia Power
Npower
NSTAR
NW Natural Gas
OGE Electric Services
Oklahoma Electric Coop
Omaha Public Power District
Orange County Govt
Orlando Utilities Commission
Otter Tail Power
Owensboro Municipal Utilities
Pacific Gas & Electric
PacifiCorp
Park Water Co
PEC, Inc.
Pedernales Electric Coop
Peninsula Light
Peoples Energy
PEPCO Holdings
Peru Utilities
Piedmont Natural Gas Company, Inc.
Pinellas County Utilities
PNM Resources
Portland General Electric
Portland Water Bureau
Poudre Valley Rural Electric
PPL Corp
PPL Electric Utilities
PPL Solutions
Progress Energy Carolinas
Progress Energy Florida
Progress Energy Service
Public Service Company of New Mexico
Public Service Electric & Gas
Public Service Enterprise Group
Public Service of New Hampshire
Public Works Commission
Puerto Rico Electric Power Authority
Qatar General Electricity &
Water
Questar Corp
Questar Gas
Rappahannock Electric Coop
Regional Municipality of Durham
Regional Municipality of Peel
Regional Water Authority
RGC Resources, Inc.
Richmond Power & Light
Rochester Gas & Electric
S Central Connecticut
Regional Water Authority
Saint Paul Regional Water Services
Salt River Project Power
Sam Houston Electric Coop
San Antonio Water System
San Diego Gas & Electric
San Francisco Utilities Commission
San Jose Water
Santee Cooper Power
Santee Electric Coop
SaskPower
Sawnee Electric Membership Corp
SCANA Corp
Sempra Energy Utilities
Severomoravska Energetika
Sewerage & Water Board of New Orleans
Sierra Pacific Power
Snohomish County PUD #1
South Central Indiana REMC
South Tahoe PUD
Southern California Water
Southern Company Gas
Southern Company Services
Southern Maryland Electric Coop
SouthStar Energy Services
Southwest Gas Corp
Southwest Water
Springfield Utility Board
St Paul Regional Water Services
St. Lucia Electricity Services Ltd.
St. Vincent Electricity Services Ltd
Stuyvesant Energy
Tacoma Public Utilities
Talquin Electric Coop
Tampa Electric
Terasen Gas
Thunder Bay Hydro Electricity Commission
Tohono O’odham Utility Authority
Tractebel Energy Services
Truckee Meadows Water Authority
TSE Services
Tualatin Valley Water District
Tucson Electric Power
Tucson Water
Turlock Irrigation District
TXU Electric Delivery
TXU
UGI Utilities
Union Gas Limited
United Power
United Rural Electric Membership Coop
United Utilities Customer Sales
United Water New Jersey
Utility Resource Solutions, LP
Valencia Water
Vermont Gas Systems
Victoria Electric Coop
Virginia Beach Dept of Public Utilities
Walnut Valley Water District
Wasco Electric Coop
Washington Gas Energy Services
WE Energies
Western Power Corp
White House Utility District
Wichita Water & Sewer
Wisconsin Public Service Corp
Xcel Energy
York Water |