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821.8 MW Sub. Coal operating in Apache, AZ
821.8 MW
Nameplate Capacity
2
Generators
units
Conventional Steam Coal
Technology
1979
Operating Since
Coordinates
34.5789, -109.2708
County
Apache, AZ
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Salt River Project | Salt River Project | — |
| Owner(s) | Salt River Project | Salt River Project | — |
| Status | Operating | — | — |
The Coronado Generating Station is an 821.8 MW coal-fired power plant located in Apache County, Arizona. It began operating in 1979 and is owned and operated by Salt River Project. The plant utilizes two generators with conventional steam coal technology, burning subbituminous coal (SUB) as its primary fuel. Coronado is the second-largest coal plant in Arizona, and ranks 39th nationally out of 75 coal plants.
In the most recent year with available data, Coronado generated 2,933,440 MWh of electricity, achieving a capacity factor of 40.8%. The plant operates within the Salt River Project balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region. Recent news coverage of the plant has focused on industry trends and regulatory matters.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Salt River Project (SRP)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
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.
335.8K MWh
Latest Month
2.9M MWh
Annual Generation
40.8%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
2599 lb/MWh
NOx
2 lb/MWh
SO₂
0.082 lb/MWh
CH₄
0.266 lb/MWh
N₂O
0.039 lb/MWh
Capacity Factor
42.8%
Annual Net Gen
3082 GWh
CO₂eq
2617 lb/MWh
Subregion
WECC Southwest
No financial data available for this plant.
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Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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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.
Last updated 2026-03-26
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