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14.5 MW Hydro operating in Kootenai, ID — Avista Corporation
14.5 MW
Nameplate Capacity
6
Generators
units
Conventional Hydroelectric
Technology
1906
Operating Since
Coordinates
47.7094, -116.9609
County
Kootenai, ID
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Avista Corp | Avista | — |
| Owner(s) | Avista Corp | Avista | — |
| Status | Operating | — | — |
The Post Falls hydroelectric plant is located in Kootenai County, Idaho. The plant, owned and operated by Avista Corporation, has a total capacity of 14.5 MW across six generators. It began operating in 1906, utilizing conventional hydroelectric technology and water as its primary fuel source. The plant is ranked 25th out of 76 power plants in Idaho and 564th nationally out of 1464 plants.
In the most recent year with available data, Post Falls generated 69,055 MWh, achieving a capacity factor of 54.3%. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region and is under the balancing authority of Avista Corporation. Financial data indicates an installed cost of $2960.75 per kW.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
7.6K MWh
Latest Month
69.1K MWh
Annual Generation
54.3%
Capacity Factor
Energy storage · Avista Corporation · Data from 2015–2024
$3,048/kW
Installed Cost
$16.1/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-14
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ask pi about Post FallsAvista Corporation (AVA)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility