High Mesa — Plant Summary
- EIA Plant ID
- 58019
- Capacity
- 40 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Twin Falls, ID
- Operating Since
- 2012
- Generators
- 1
- Operator
- High Mesa Energy, LLC
- Parent Company
- Exelon
- Annual Generation
- 76,378 MWh
- Capacity Factor
- 21.8%
- Balancing Authority
- Idaho Power Company
- ISO/RTO
- —
- NERC Region
- WECC
High Mesa
OperatingWind
Ranked #8 of 34 Wind plants in ID#991 of 1442 nationally
40 MW Wind operating in Twin Falls, ID — Idaho Power Company
EIAGEMWD
40 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Location
Coordinates
42.8928, -115.0396
County
Twin Falls, ID
Nearby Plants
- Tuana SpringsWind16.8 MW · 1.8 km
- Cassia GulchWind18.9 MW · 2.5 km
- Bliss (ID)Hydro75 MW · 3.5 km
Ownership & Operator
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 | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Idaho Power Company
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
6.0K MWh
Latest Month
76.4K MWh
Annual Generation
21.8%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Electric Quarterly ReportsHIGH
$59.1/MWh
PPA Price
High Mesa Energy, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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