CoronadoRetirement planned
Apache County, Arizona · EIA plant ID 6177 · Operator: Salt River Project
Nameplate822MWSummer 762 MW
Generators2in service
Net generation2,718GWh12 mo to Aug 2026
Capacity factor41%gas/coal/oil units, summer MW
Heat rate11,315Btu/kWhfossil units, electric fuel, HHV
First online1979Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 5,858.1 | 85.2% | 10,209 |
| 2002 | 5,063.2 | 73.6% | 10,081 |
| 2003 | 5,786.6 | 84.2% | 10,471 |
| 2004 | 5,797.4 | 84.1% | 10,408 |
| 2005 | 6,070.9 | 88.3% | 10,784 |
| 2006 | 5,888.4 | 85.6% | 10,869 |
| 2007 | 5,813.3 | 85.9% | 10,333 |
| 2008 | 6,286.5 | 92.6% | 10,482 |
| 2009 | 5,575 | 82.3% | 10,362 |
| 2010 | 6,244.3 | 92.2% | 10,459 |
| 2011 | 5,455.6 | 81.4% | 10,704 |
| 2012 | 5,590.7 | 83.2% | 10,816 |
| 2013 | 5,782.5 | 86.3% | 10,625 |
| 2014 | 5,419.9 | 81.2% | 10,536 |
| 2015 | 4,935.4 | 73.9% | 10,700 |
| 2016 | 4,924.9 | 73.6% | 10,581 |
| 2017 | 3,899.9 | 58.4% | 10,657 |
| 2018 | 3,597.9 | 53.9% | 10,870 |
| 2019 | 2,074.9 | 31.1% | 11,132 |
| 2020 | 2,595.9 | 38.8% | 11,297 |
| 2021 | 3,402.2 | 51.0% | 11,191 |
| 2022 | 2,973.8 | 44.5% | 11,592 |
| 2023 | 3,082.1 | 46.2% | 10,977 |
| 2024 | 2,672.8 | 39.9% | 11,259 |
| 2025 | 2,933.4 | 44.0% | 11,276 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| CO1 | Conventional Steam Coal | ST | 410.9 | 380 | Dec 1979 | Operating · retirement planned | Dec 2032 | coming soon |
| CO2 | Conventional Steam Coal | ST | 410.9 | 382 | Oct 1980 | Operating · retirement planned | Dec 2032 | coming soon |
Owner / operator
Operator: Salt River Project. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Salt River Project | 100.0% | 822 MW |
Nearby plants
Within 80 km.
| Springerville | 1,779 MW | 30.6 km |
| Western Renewable Energy | 3 MW | 54.1 km |
| Borderlands Wind, LLC | 100 MW | 58 km |