Utiliplan (UPN)

Duke Energy

City of Chattanooga

City of Lexington

Hamilton County

Warren County Water District

Hendersonville Utility District

Electricite de France (Paris, France)

Consolidated Utility District (Water)

Enel (Rome, Italy)

SCANA

Southern California Edison

Con Edison

Benton PUD

Region of Peel (Canada)

City of Sacramento

Union Gas Limited

Ekurhuleni Metro Council (Africa)

St Lucia Electricity Services Ltd

City of Murfreesboro

Burbank Water and Power

Newfoundland Power (Canada)

Cooperative Research Network

Enel Green Energy USA

Salt River Project (SRP)

City of Charleston

University of Connecticut

PG&E

BC Hydro

PPL Electric Utilities

PECO, An Exelon Company

KCP&L

Toronto Hydro

The Government of St. Lucia

Exelon

PHI

Vectren Energy Delivery

Direct Energy

Keyspan

Arizona Public Service

Tacoma Water

Toronto

Constellation

Oncor Electric Delivery

Fulton County

Connecticut Light and Power

City of West Palm Beach

City of Modesto

Northeast Utilities

NW Natural

North Delhi Power Limited (India)

Nesa (Denmark)

Consumers Energy

Con Ed Solutions

Lexington Fayette Urban County Govt.

WMECO

American Electric Power

City of Greensboro

City of Austin

Manitoba

Georgia Power Company

NH Electric Cooperative

We-Energies

NStar/Eversource

CoServ

Tampa Electric Co.

City of Leesburg

Ampla (Brazil)

B.C. Hydro

City of Tacoma

Barbados

OpTerra Energy Group

City of Bellevue

Water Authority, Grand Cayman

Entergy

Vectren Source

Columbia Energy Retail

First Energy Solutions

Bahamas Electricity Corp.

City of Toronto (Canada)

Cleco

Pepco

Keyspan Energy Services

Nashville

Hydro Quebec

Guernsey Electric Co.

DTE Energy

Progress Energy

Hydro Ottawa

Integrys ES

Government of The Bahamas

Philadelphia Gas Works

Washington Gas

Colorado Springs

Dominion

City of Providence

PSEG

The Government of Grand Cayman

Paducah Water (City of Paducah)

City of Bellevue Utilities

TruEnergy (Australia)

Wisconsin Public Service

City of Bowling Green

First Energy

Pacific Gas & Electric

PNM

City of Hendersonville

ONS Energy

City of Rossville

Allegheny Power

City of Stamford

Water & Wastewater Treatment Authority

Baltimore Gas & Electric

National Rural Electric Co-op Assoc.

E.On

Avista Utilities

Fulton County Utilities

Omaha Public Power District

Austin Energy

Select Energy

South Central Connecticut Regional Water Authority

LCEC

City of Burbank

National Grid

ComEd

Clark Public Utilities

Kentucky Utilities

Puerto Rico Electric Power Authority

Indianapolis Power & Light

Eskom (a Division of Govt of South Africa)

New Energy

LCRA

Gainesville Regional Utilities

Piedmont Natural Gas

University of Texas

San Diego Gas & Electric

University of Michigan

Ameren

LFUCG

Sacramento Municipal Utility District (SMUD)

Sempra Energy

The Isle of Guernsey (UK)