Stanislaus — Plant Summary
- EIA Plant ID
- 285
- Capacity
- 81.9 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Tuolumne, CA
- Operating Since
- 1963
- Generators
- 1
- Operator
- Pacific Gas & Electric Co.
- Parent Company
- PG&E
- Annual Generation
- 268,818 MWh
- Capacity Factor
- 37.4%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Stanislaus
OperatingHydro
Ranked #47 of 247 Hydro plants in CA#219 of 1454 nationally
81.9 MW Hydro operating in Tuolumne, CA — California Independent System Operator
EIAGEMWD
81.9 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1963
Operating Since
Location
Coordinates
38.1390, -120.3703
County
Tuolumne, CA
Nearby Plants
- Collierville PowerhouseHydro253 MW · 1.1 km
- MurphysHydro3.6 MW · 6.7 km
- AngelsHydro1.4 MW · 16.6 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Pacific Gas & Electric Co. | Pacific Gas and Electric | — |
| Owner(s) | Pacific Gas & Electric Co. | PG&E | — |
| Status | Operating | operating | — |
Ownership Chain
About
The Stanislaus hydroelectric plant is located in Tuolumne County, California. The plant, which began operating in 1963, has a total capacity of 81.9 MW from a single generator. It is owned and operated by Pacific Gas & Electric (PG&E). The plant utilizes conventional hydroelectric technology and its primary fuel source is water (WAT).
In the most recent year with available data, Stanislaus generated 268,818 MWh, achieving a capacity factor of 37.4%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Stanislaus ranks as the 47th largest power plant in California out of 247, and 221st nationally out of 1464. Financial data indicates an installed cost of $879.58 per kW.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
0 MWh
Latest Month
268.8K MWh
Annual Generation
37.4%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$926/kW
Installed Cost
$20.5/MWh
Operating Cost
PACIFIC GAS AND ELECTRIC COMPANY
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Stanislaus
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
STANISLS_7_B1
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
EIA-860 direct report
News & Articles (10)Beta
Grid·outage
Thousands lost power near Chinese Camp after explosion
An explosion in Tuolumne County caused thousands in the Chinese Camp area to lose power, according to officials.
Tuolumne County (other)Chinese Camp (other)
CBS News·2 months ago
Hazards·flooding
DAILY DIGEST, 12/23: CA braces for brutal week of Christmas storms; Lake Oroville sees significant rise in water levels; Snowmaking a necessity, not a backup, for the West’s ski resorts; Stanislaus dam controversy has it all: seismic concern, condors, unusual
Several news sources featured in the Daily Digest may limit the number of articles you can access without a subscription.
Maven's Notebook·3 months ago
Grid·interconnection
California has a huge solar power problem. A fix is coming.
California is launching a new energy market for Western states, in hopes of cutting costs and boosting the use of renewables like solar and...
California (other)
SFGATE·3 months ago
Industry·other
Stanislaus activists seek zero-waste economy. Is it possible? And how many jobs?
The effort involves composting, recycling and other steps well beyond what has been done in recent years.
Modesto Bee·4 months ago
Last updated 2026-03-14
View all 10 articles