A
| Alliant Energy Corp |
Madison
|
G
M
| Madison Gas and Electric (MGE) |
Madison
|
| Marquette Electronics, Inc. |
Milwaukee |
O
| Oconomowoc Utilities |
Oconomowoc
|
P
| Paragon Electric Co., Inc. |
Two Rivers
|
R
| RESCO |
Middleton
|
U
| Unico, Inc |
Franksville
|
| United Water Services |
Milwaukee |
W
| We-Energies |
Milwaukee
|
| Wisconsin Energy Corp |
Milwaukee |
| Wisconsin Gas Company |
Sun Prairie |
| Wisconsin Power Control, Inc. |
Madison |
| WPS Resources Corp |
Green Bay |
X
| Xcel Energy Corp |
Minneapolis, MN
|
