40 MW Wind operating in Twin Falls, ID — Idaho Power Company
40 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Coordinates
42.8928, -115.0396
County
Twin Falls, ID
Nearby Plants
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 | High Mesa Energy, LLC | Exelon | — |
| Owner(s) | High Mesa Energy, LLC | Exelon | — |
| Status | Operating | operating | — |
Located in Twin Falls County, Idaho, the High Mesa wind power plant has a total capacity of 40 MW. The plant began operating in 2012 and is owned by Exelon, with High Mesa Energy, LLC as the listed operator per EIA data. The facility utilizes a single onshore wind turbine generator. The plant is ranked 8th out of 34 wind facilities in Idaho and 977th nationally out of 1424. The plant is located within the Western Electricity Coordinating Council (WECC) NERC region and is under the balancing authority of the Idaho Power Company.
The High Mesa facility uses a Suzlon S97 wind turbine, with a rotor diameter of 97 meters and a hub height of 90 meters. The latest available annual generation data indicates an output of 76,378 MWh, resulting in a capacity factor of 21.8%. Financial data indicates a power purchase agreement (PPA) price of $59.14 per MWh, as reported in FERC Electric Quarterly Reports (EQR).
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Idaho Power Company
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
6.0K MWh
Latest Month
76.4K MWh
Annual Generation
21.8%
Capacity Factor
$59.1/MWh
PPA Price
High Mesa Energy, LLC
Contract Seller
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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Last updated 2026-03-14
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