Wygen III — Plant Summary
- EIA Plant ID
- 56596
- Capacity
- 116 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Campbell, WY
- Operating Since
- 2010
- Generators
- 1
- Operator
- Black Hills Power, Inc.
- Parent Company
- small shareholder(s)
- Annual Generation
- 670,650 MWh
- Capacity Factor
- 65.7%
- Balancing Authority
- Western Area Power Administration - Rocky Mountain Region
- ISO/RTO
- —
- NERC Region
- WECC
Wygen III
OperatingSub. Coal
Ranked #7 of 10 Sub. Coal plants in WY#86 of 103 nationally
116 MW Sub. Coal operating in Campbell, WY — Western Area Power Administration - Rocky Mountain Region
EIAWD
116 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
2010
Operating Since
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Black Hills Power, Inc. | Montana-Dakota Utilities | — |
| Owner(s) | Black Hills Power, Inc., City Of Gillette, Montana-Dakota Utilities Co | small shareholder(s) | — |
| Status | Operating | — | — |
Ownership Chain
About
Wygen III is a 116 MW coal-fired power plant located in Campbell County, Wyoming. The plant began operating in 2010 and utilizes conventional steam coal technology with subbituminous coal (SUB) as its primary fuel. It consists of a single generator. Black Hills Power, Inc. is the plant's operator, though ownership is attributed to small shareholder(s). Wygen III ranks 6th out of 6 coal plants in Wyoming based on capacity, and 73rd out of 75 nationally.
The plant's latest annual generation was 670,650 MWh, resulting in a capacity factor of 65.7%. The plant operates within the Western Area Power Administration - Rocky Mountain Region balancing authority and the WECC NERC region. Financial data indicates an installed cost of $1253.27 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Western Area Power Administration - Rocky Mountain Region
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
65.8K MWh
Latest Month
670.6K MWh
Annual Generation
65.7%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$1,439/kW
Installed Cost
$34.3/MWh
Operating Cost
Black Hills Power, Inc.
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (3)Beta
Industry·corporate
Hispanic Wyoming: The Jobs Machine of Campbell County
Campbell County's booming growth has provided opportunity not only for transient, poorly educated laborers, but for people with different...
Campbell County (other)
WyoFile·14 years ago
Industry·corporate
Old-style coal plants expanding
WYOMING, United States — UTILITIES across the United States are building dozens of old-style coal plants that will cement the industry's...
Jamaica Observer·15 years ago
Grid·capacity addition
WyGen III powers up
By STEVE MCMANAMEN, News-Record Writer smcmanamen@gillettenewsrecord.net. After two years of construction, Black Hills Power has its new...
Black Hills Power (operator)
Gillette News Record·15 years ago
Last updated 2026-03-14
View all articles