| Alliant Energy |
Elliott Company |
Public Service of Oklahoma |
| American Atlas |
Entergy |
Puget Sound Energy |
| Baltimore Gas & Electric |
Keyspan Energy |
Puerto Rico Electric Power |
| BPDS (Bangladesh) |
Korea Electric |
Reliant Energy |
| Brazos Electric |
MidAmerican Energy Co. |
South Carolina Elec. & Gas Co. |
| Bryan Municipal Utilities |
Municipality of Anchorage |
Southern Company |
| Cedar Falls Utilities |
Nevada Power |
Tampa Electric Co. |
| Central Iowa Power Corp. |
North Indiana Pub Service Co. |
Texaco |
| Cinergy |
Northern California Power
Authority |
Tractebel Power, Inc. |
| City of Medicine Hat |
Northern States Power Co. |
Tri State |
| City of Tallahassee |
NRG |
TurboCare |
| City of Vineland |
Pacific Corp. |
University of Texas |
| Colorado Energy Management |
Philadelphia Electric |
Vectren |
| Connective |
Potomac Electric Power |
West Texas Utilities |
| Consol. Electric Power Asia |
Power Gen |
Westinghouse |
| Consolidated Edison |
PPG Industries, Inc. |
Wood Group |
| Duke Energy |
PPL |
Xcel Energy |
| El Paso Energy |
PSE&G |
Yazoo City Utilities |
