Four Corners — Plant Summary
- EIA Plant ID
- 2442
- Capacity
- 1636.2 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- San Juan, NM
- Operating Since
- 1969
- Generators
- 2
- Operator
- Arizona Public Service Co
- Parent Company
- Pinnacle West Capital
- Annual Generation
- 8,239,233 MWh
- Capacity Factor
- 57.3%
- Balancing Authority
- Arizona Public Service Company
- ISO/RTO
- —
- NERC Region
- WECC
Four Corners
OperatingBit. Coal
Ranked #1 of 1 Bit. Coal plants in NM#18 of 66 nationally
1636.2 MW Bit. Coal operating in San Juan, NM — Arizona Public Service Company
EIAWD
1,636.2 MW
Nameplate Capacity
2
Generators
units
Conventional Steam Coal
Technology
1969
Operating Since
Location
Coordinates
36.6900, -108.4814
County
San Juan, NM
Nearby Plants
- NTEC Gas PlantNatural Gas1089 MW · 2.9 km
- Rockmont Solar and Storage ProjectBESS130 MW · 13.5 km
- San Juan Solar IBESS300 MW · 20.5 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Public Service Co | Arizona Public Service | — |
| Owner(s) | 4C Acquisition, LLC, Arizona Public Service Co, El Paso Electric Co, Public Service Co of NM, Salt River Project, Tucson Electric Power Co | Pinnacle West Capital | Arizona Public Service |
| Status | Operating | — | — |
Ownership Chain
About
The Four Corners Generating Station is a 1,540 megawatt coal-fired power plant located near Fruitland, New Mexico, on property located on the Navajo Nation that is leased from the Navajo Nation government.
Read more on WikipediaThe Four Corners Generating Station is a 1636.2 MW coal-fired power plant located in San Juan County, New Mexico. It began operating in 1969 and is the largest power plant in the state. The plant utilizes conventional steam coal technology and is fueled by bituminous coal (BIT). It consists of two generating units and is operated by Arizona Public Service Co, a subsidiary of Pinnacle West Capital. The plant's balancing authority is the Arizona Public Service Company, and it falls within the Western Electricity Coordinating Council (WECC) NERC region.
In the latest year for which data is available, Four Corners generated 8,239,233 MWh of electricity, achieving a capacity factor of 57.3%. The plant's installed cost was $843.5 per kW, according to FERC data. Four Corners ranks 15th out of 50 coal plants nationally. News coverage of the plant includes 7 articles related to industry topics, 2 on regulatory matters, and 1 concerning hazards.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
500 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
922.8K MWh
Latest Month
8.2M MWh
Annual Generation
57.3%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$1,863/kW
Installed Cost
$56.2/MWh
Operating Cost
Tucson Electric Power Company
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 (10)Beta
Regulatory·permitting
APS seeks license extension for Palo Verde Nuclear Plant
Arizona Public Service (APS) plans to renew operating licenses for all three units at Palo Verde Generating Station, extending operations to the mid-2060s, ensuring continued energy supply.
APS (operator)
Power Engineering·1 weeks ago
General
Trump Repeals the Government’s Power to Regulate Climate
Also, an end to the surge of immigration agents in Minnesota. Here's the latest at the end of Thursday.
The New York Times·4 weeks ago
General
Trump Repeals the Government’s Power to Regulate Climate
Also, an end to the surge of immigration agents in Minnesota. Here's the latest at the end of Thursday.
The New York Times·4 weeks ago
General
Trump Repeals the Government’s Power to Regulate Climate
Also, an end to the surge of immigration agents in Minnesota. Here's the latest at the end of Thursday.
The New York Times·4 weeks ago
Last updated 2026-03-25
View all 10 articles