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PILOT BUTTE POWERPLANT



Pilot Butte Powerplant

Pilot Butte Powerplant


Contact: Susan Kelly
Chief, Operations and Maintenance Division
Wyoming Area Office
P.O. Box 1630
Mills, WY 82644
Telephone Numbers: Office
Phone: (307) 261-5605
Fax: (307) 261-5683
E-Mail Address: skelly@gp.usbr.gov
Reclamation Region: Great Plains
NERC Region: Western Electricity Coordinating Council, Rocky Mountain Power Area
PMA Service Area: Western Area Power Administration, Rocky Mountain Region
Project Authorization: The project was authorized for construction by the Secretary of the Interior on June 19, 1918, under the terms of the Indian Appropriation Act for fiscal year 1919, and approved by the Congress on May 25, 1918. By the act of June 5, 1920, the project was placed under Reclamation's jurisdiction. On September 25, 1970, Public Law 91-409 reauthorized the project as the Riverton Unit of the Pick-Sloan Missouri Basin Program.
Project Purposes: Pilot Canal flows in a generally easterly direction from Pilot Butte Reservoir, servicing lands south of those supplied by the Wyoming Canal.
Plant Purpose: Pilot Butte Powerplant was built to supply power to the project.
Plant Facts: The plant has two generating units which operate under a maximum head of 105 feet with a total capacity of 1,600 kilowatts. Power is distributed over 76 miles of transmission lines.

Pilot Butte Powerplant is operated on a seasonal basis during the diversion of irrigation flows to Pilot Butte Reservoir.
Plant History: The Pilot Butte Powerplant, located at the drop from the Wyoming Canal to Pilot Butte Reservoir was taken out of service in June 1973. A new penstock was installed and units were placed in service in June 1990.
Present Activities: Emergency repairs were completed in FY 2003 on the stator core of Unit 2. This required disassembly of the unit and removal of the rotor. Repairs to the rotor were also accomplished during the outage.
Future Planned Activities: None
Special Issues: None
River: Wind River
Plant Type: Conventional
Powerhouse Type: Above Ground
Turbine Type: Francis
Original Nameplate Capacity: 1,600 kW
Installed Capacity: 1,600 kW
Year of Initial Operation: 1925
Age: 80 years
Net Generation:
(FY 2005)
4,326,480 kWh
Rated Head: 100 feet
Plant Factor:
(FY 2005)
32.02 percent
Remotely Operated: Yes
Production Mode: Base Load (seasonal)


Click here for graphs and charts of Pilot Butte Powerplant performance.

Click here for information on the Pick-Sloan Missouri River Basin Program - Riverton Unit.



Revised December 30, 2005            Hydropower Site Map             Help