10 MW Hydro operating in Tuolumne, CA — California Independent System Operator
10 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1957
Operating Since
Coordinates
38.2026, -120.0770
County
Tuolumne, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oakdale&South San Joaquin Irrigation D. | — | — |
| Owner(s) | Oakdale&South San Joaquin Irrigation D. | — | — |
| Status | Operating | — | — |
The Beardsley hydroelectric plant is located in Tuolumne County, California. The plant has a total capacity of 10 MW and began operating in 1957. It is owned and operated by Oakdale & South San Joaquin Irrigation District. The plant utilizes conventional hydroelectric technology and consists of a single generator.
Beardsley's latest annual generation was 55,717 MWh, resulting in a capacity factor of 60.6%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Beardsley ranks as the 122nd largest power plant in California out of 247, and 666th nationally out of 1464.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Political Subdivision
Sector
IPP Non-CHP
2.4K MWh
Latest Month
55.7K MWh
Annual Generation
60.6%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
CAISO
LMP Node
GATESBK4_7_N002
Pricing Hub
TH_ZP26_GEN-APND
Secondary Zone
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
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