Peaking Power Plants
Peaking power plants provide electricity only when our customers' electric needs reach a "peak." These plants can be started and shut off by remote control in a matter of minutes.
Jet engines used as peaking units are similar to the engines in jet aircraft. Diesel engines used for this purpose are much like the engines in railroad locomotives.
Because peaking plants run on more expensive fuels, they are used only during times of need and are immediately shut off when the need for electricity declines.
The fuel used by the peaking plants burns cleanly, minimizing pollutants in the environment.
| Peaking Power Plant | First Year of Service | Fuel | Total MW (WPS MW) |
|---|---|---|---|
| De Pere Energy Center Combustion Turbine - DEC |
1999 |
Natural Gas/Fuel Oil |
179.8 (179.8) |
| Eagle River 2 Diesel Engines |
1964 |
Diesel Fuel |
4(4) |
| Necedah Combustion Turbine - J31 |
2003 |
Fuel Oil |
9.8 (9.8) |
| Oneida 2 Diesel Engines |
1996 |
Diesel Fuel |
4 (4) |
| Pulliam Gas Turbine - P31* |
2003 |
Natural Gas |
82.6 (82.6) |
| Weston Gas Turbine - W31 2 Jet Engines - W32 |
1969 1973 |
Natural Gas/Fuel Oil Natural Gas/Fuel Oil |
21.5 (21.5) 51 (51) 72.5 (72.5) |
| West Marinette 2 Jet Engines - WM31 2 Jet Engines - WM32 Gas Turbine - WM33** |
1971 1973 1993 |
Natural Gas/Fuel Oil Natural Gas/Fuel Oil Natural Gas/Fuel Oil |
41.9 (41.9) 41.9 (41.9) 87.4 (59.4) 171.2 (143.2) |
| Total WPS peaking capacity = | 495.9 MW | ||
* Unit Output controlled by UPPCO
** 68% WPS Jointly Owned