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198.6 MW Hydro operating in Sacramento, CA
198.6 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1955
Operating Since
Coordinates
38.7067, -121.1584
County
Sacramento, CA
Nearby Plants
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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 | U S Bureau of Reclamation | US Bureau of Reclamation | United States Bureau of Reclamation |
| Owner(s) | U S Bureau of Reclamation | US Bureau of Reclamation | United States Bureau of Reclamation |
| Status | Operating | operating | — |
GEM identifies the owner as US Bureau of Reclamation
This entity is not yet in the GEM ownership database — chain unavailable.
Folsom Dam is a concrete gravity dam on the American River of Northern California in the United States, about 25 mi (40 km) northeast of Sacramento. The dam is 340 ft (100 m) high and 1,400 ft (430 m) long, flanked by earthen wing dams. It was completed in 1955, and officially opened the following year.
Read more on WikipediaFolsom is a 198.6 MW hydroelectric power plant located in Sacramento County, California. The plant began operating in 1955 and is owned and operated by the U.S. Bureau of Reclamation. It utilizes three generators with conventional hydroelectric technology and its primary fuel source is water (WAT). Folsom is the 14th largest of 42 hydroelectric plants in California, and ranks 96th out of 194 nationally.
The plant's latest annual generation was 503,446 MWh, resulting in a capacity factor of 29.0%. Folsom operates within the Balancing Authority of Northern California and is part of the Western Electricity Coordinating Council (WECC) NERC region.
Generated from EIA, GEM, and public data sources
Grid Region
California (non-ISO)
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Balancing Authority of Northern California (BANC)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
39.3K MWh
Latest Month
503.4K MWh
Annual Generation
29.0%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $455.7M
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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