Chokecherry and Sierra Madre Wind — Plant Summary
- EIA Plant ID
- 58987
- Capacity
- 3550.5 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Under construction
- Location
- Carbon, WY
- Operating Since
- —
- Generators
- 4
- Operator
- Power Company of Wyoming LLC
- Parent Company
- —
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Chokecherry and Sierra Madre Wind
Under constructionWindGEM: construction
Ranked #1 of 34 Wind plants in WY#1 of 1442 nationally
3550.5 MW Wind under construction in Carbon, WY — California Independent System Operator
EIAGEM
3,550.5 MW
Nameplate Capacity
4
Generators
units
Onshore Wind Turbine
Technology
—
Operating Since
Location
Coordinates
41.6831, -107.2000
County
Carbon, WY
Nearby Plants
- Sinclair Oil RefineryOther Gas5 MW · 13.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Power Company of Wyoming LLC | Power Company of Wyoming LLC [100%] | — |
| Owner(s) | Power Company of Wyoming LLC | Power Company of Wyoming LLC [100%] | — |
| Status | Under construction | construction | — |
Ownership Chain
GEM identifies the owner as Power Company of Wyoming LLC [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Chokecherry and Sierra Madre Wind is a wind power plant located in Carbon County, Wyoming. The facility has a total capacity of 3550.5 MW, making it the largest wind farm in Wyoming and the largest in the United States. It consists of four wind turbine generators and is operated by Power Company of Wyoming LLC. The plant utilizes onshore wind turbine technology and its primary fuel source is wind (WND).
The plant's balancing authority is the California Independent System Operator (CAISO), and it is located within the Western Electricity Coordinating Council (WECC) NERC region. As of the latest rankings, it is the first largest of 24 wind plants in Wyoming and the first largest of 734 wind plants nationally. The plant has been the subject of 10 news articles, with coverage focusing on industry (6 articles), regulatory matters (3 articles), and grid-related topics (1 article).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
not applicable
Pricing Hub
TH_NP15_GEN-APND
Node Source
EIA-860 direct report
News & Articles (10)Beta
Industry·other
Proposed Seminoe Power Plant Aims To Cut Water Use 95% And Slash Emissions
The proposed 2-gigawatt Seminoe Generating Station near Rawlins would pair natural gas and wind power to boost Wyoming's energy supply.
Cowboy State Daily·2 months ago
Industry·other
Planned Power Plant Officials Update County Commissioners on Project
Wednesday, JANUARY 7, 2026 | Photo - Map of area around planned natural gas power plant - Courtesy Carbon County Economic Development Power...
Bigfoot 99 Radio·2 months ago
Industry·other
The Chokecherry and Sierra Madre Wind Energy Project due 2026, Wyoming
The Chokecherry and Sierra Madre Wind Energy project is a US$5 billion wind farm currently under construction in Rawlins, Wyoming and due...
Chokecherry and Sierra Madre Wind Energy Project (developer)
Construction Review·6 months ago
Regulatory·federal policy
Wyoming Wants Renewables — Why Isn’t The Trump Administration Listening?
One hope is that a cost-share will split federal rents and fees with local governments hosting wind and solar facilities.
Trump Administration (regulator)
CleanTechnica·8 months ago
Last updated 2026-03-14
View all 10 articles