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1.5 MW Hydro operating in Twin Falls, ID
1.5 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
1984
Operating Since
Coordinates
42.6296, -114.6616
County
Twin Falls, ID
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Little Mac Power Company | — | — |
| Owner(s) | Little Mac Power Company | — | — |
| Status | Operating | — | — |
The Little Mac Project is a hydroelectric power plant located in Twin Falls County, Idaho. The plant has a total capacity of 1.5 MW across four generators. It began operating in 1984 and is owned and operated by Little Mac Power Company. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology.
In the most recent year with available data, the Little Mac Project generated 4,953 MWh of electricity, achieving a capacity factor of 37.5%. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region and is under the balancing authority of the Idaho Power Company. In terms of size, the Little Mac Project ranks 66th out of 76 power plants in Idaho and 1323rd out of 1464 plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Idaho Power Company (IPCO)
Grid Voltage
2.5 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.
266 MWh
Latest Month
5.0K MWh
Annual Generation
37.5%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $3.4M
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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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