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115.8 MW Wind operating in Converse, WY
115.8 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2009
Operating Since
Coordinates
43.0572, -105.8543
County
Converse, WY
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PacifiCorp | MidAmerican Energy | — |
| Owner(s) | PacifiCorp | Berkshire Hathaway | — |
| Status | Operating | retired | — |
The Rolling Hills Wind Farm may be one of two wind farms, one in Wyoming, the other in Iowa.
Read more on WikipediaThe Rolling Hills wind farm is located in Converse County, Wyoming. The plant has a total capacity of 115.8 MW and began operating in 2009. It is owned by Berkshire Hathaway and operated by PacifiCorp. The facility consists of a single generator utilizing onshore wind turbine technology. The wind turbines have a hub height of 80 meters and a rotor diameter of 91 meters, and were manufactured by GE Wind, model GE1.85-91. Rolling Hills is ranked 23rd out of 24 wind plants in Wyoming, and 624th out of 734 nationally.
The plant's latest annual generation was 244,790 MWh, resulting in a capacity factor of 24.1%. Rolling Hills operates within the PacifiCorp - East balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $2,060.47 per kW. The plant has a power purchase agreement (PPA) price of $10.78 per MWh.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
PacifiCorp - East (PACE)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
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.
37.9K MWh
Latest Month
244.8K MWh
Annual Generation
24.1%
Capacity Factor
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PacifiCorp · Data from 2015–2025
$10.8/MWh
PPA Price
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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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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