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172.8 MW Natural Gas operating in Elmore, ID — Idaho Power Company
172.8 MW
Nameplate Capacity
1
Generators
unit
Natural Gas Fired Combustion Turbine
Technology
2005
Operating Since
Coordinates
43.1470, -115.6670
County
Elmore, ID
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Operating | — | — |
Bennett Mountain is a 172.8 MW natural gas-fired power plant located in Elmore County, Idaho. The plant began operating in 2005 and has one natural gas-fired combustion turbine generator. It is owned by IDACORP and operated by Idaho Power Company. The plant is located within the Idaho Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, Bennett Mountain generated 919,148 MWh of electricity, achieving a capacity factor of 60.4%. The plant ranks fourth out of five power plants in Idaho and 787th out of 945 nationally. Financial data indicates an installed cost of $310.65 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
114.3K MWh
Latest Month
919.1K MWh
Annual Generation
60.4%
Capacity Factor
CO₂ Intensity
1235 lb/MWh
NOx
0.324 lb/MWh
SO₂
Gas turbine · Idaho Power Company · Data from 2015–2024
$391/kW
Installed Cost
$-88/kW
Annual CapEx
$52.1/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
LMP Node
BMPR_GNODE011
Pricing Hub
—
Last updated 2026-03-26
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ask pi about Bennett MountainIdaho Power Company (IPCO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.006 lb/MWh
CH₄
0.023 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
47.9%
Annual Net Gen
726 GWh
CO₂eq
1236 lb/MWh
Subregion
WECC Northwest