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24 MW Hydro operating in King, WA
24 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1989
Operating Since
Coordinates
47.4446, -121.6878
County
King, WA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Central Rivers Power US, LLC | — | — |
| Owner(s) | Central Rivers Power US, LLC, Enel North America, Inc., South Fork Resources Inc | — | — |
| Status | Operating | — | — |
Twin Falls Hydro is a 24 MW hydroelectric power plant located in King County, Washington. The plant began operating in 1989 and is owned and operated by Central Rivers Power US, LLC. It utilizes conventional hydroelectric technology with two generators. The plant's primary fuel source is water (WAT).
Twin Falls Hydro operates within the Puget Sound Energy balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In the most recent year with available data, the plant generated 62,946 MWh, achieving a capacity factor of 30.0%. Twin Falls Hydro ranks as the 40th largest power plant out of 75 in Washington state, and 450th out of 1464 nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Puget Sound Energy (PSEI)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
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.
8.2K MWh
Latest Month
62.9K MWh
Annual Generation
30.0%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $55.1M
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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.
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