Donnells
Donnells is a 72-megawatt conventional hydroelectric powerhouse in Tuolumne County, California, operating since June 1957. It sits on the Middle Fork Stanislaus River and is part of the Beardsley/Donnells Hydroelectric Project (FERC No. 2005), built and jointly owned by the Oakdale Irrigation District and South San Joaquin Irrigation District under their Tri-Dam Project partnership. The Donnells generating unit was upgraded from its original size to its current 72 MW rating, a change completed in 1990. FERC issued Tri-Dam a new 40-year operating license for the Beardsley/Donnells Project effective January 2006, giving the project a license horizon to January 30, 2046. The plant sells into the CAISO market and settles at the nearby DONNELLS_7_B1 pricing node. No whole-plant retirement is scheduled; the unit continues to operate under EIA-860.
Overview
- Registry anchor
- Plant 415
- plant-415
Infrastructure record
- Alternate name
- Donnells Power Station
- Mapped facility footprint
- Mapped infrastructure footprint
Mapped infrastructure geometry associated with this asset.