Agua Fria
Maricopa County, Arizona · EIA plant ID 141 · Operator: Salt River Project
Nameplate738MWSummer 741 MW
Generators10in service
Net generation202GWh12 mo to Aug 2026
Capacity factor3%gas/coal/oil units, summer MW
Heat rate10,676Btu/kWhfossil units, electric fuel, HHV
First online1957Runs as peaking
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 | 2,171.5 | — | — |
| 2002 | 682.7 | — | — |
| 2003 | 424.3 | 7.7% | 12,150 |
| 2004 | 306.1 | 5.6% | 12,370 |
| 2005 | 141.6 | 2.6% | 12,601 |
| 2006 | 142.7 | 2.6% | 12,627 |
| 2007 | 200.7 | 3.6% | 12,456 |
| 2008 | 153.2 | 2.8% | 12,810 |
| 2009 | 64.7 | 1.2% | 13,823 |
| 2010 | 18.7 | 0.3% | 19,982 |
| 2011 | 42.6 | 0.8% | 14,540 |
| 2012 | 54.6 | 1.0% | 14,125 |
| 2013 | 77 | 1.4% | 13,610 |
| 2014 | 12.6 | 0.2% | 25,498 |
| 2015 | 109.8 | 2.0% | 13,074 |
| 2016 | 84.9 | 1.5% | 13,529 |
| 2017 | 199.5 | 3.6% | 12,296 |
| 2018 | 148.6 | 2.7% | 13,168 |
| 2019 | 228 | 4.2% | 12,482 |
| 2020 | 342.5 | 6.2% | 10,960 |
| 2021 | 123.4 | 2.3% | 11,615 |
| 2022 | 134 | 2.4% | 11,419 |
| 2023 | 152.1 | 2.5% | 11,322 |
| 2024 | 234.8 | 3.8% | 11,259 |
| 2025 | 244.3 | 3.9% | 10,927 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusListed in EIA-860, no liquid burn in 36 months
Liquid fuel burned · 36 mo0 MMBtu
Last month with liquid burn—
Switch while operatingYes
Net summer MW on gas219
Net summer MW on oil219
Time gas → oilup to 6 h (EIA 6H)
Time oil → gasup to 6 h (EIA 6H)
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 |
|---|---|---|---|---|---|---|---|---|
| AF1 | Natural Gas Steam Turbine | ST | 113.6 | 113 | Jan 1958 | Operating | — | coming soon |
| AF2 | Natural Gas Steam Turbine | ST | 113.6 | 113 | Apr 1957 | Operating | — | coming soon |
| AF3 | Natural Gas Steam Turbine | ST | 163.2 | 181 | Apr 1961 | Operating | — | coming soon |
| AF4 | Natural Gas Fired Combustion Turbine | GT | 80.5 | 73 | May 1975 | Operating | — | coming soon |
| AF5 | Natural Gas Fired Combustion Turbine | GT | 71.2 | 73 | Jul 1974 | Operating | — | coming soon |
| AF6 | Natural Gas Fired Combustion Turbine | GT | 71.2 | 73 | Jul 1974 | Operating | — | coming soon |
| AF7 | Natural Gas Fired Combustion Turbine | GT | 49.5 | 45 | Aug 2022 | Operating | — | coming soon |
| AF8 | Natural Gas Fired Combustion Turbine | GT | 49.5 | 45 | Aug 2022 | Operating | — | coming soon |
| AFSB1 | Batteries | BA | 25 | 25 | Sep 2021 | Operating | — | coming soon |
| PV-3 | Solar Photovoltaic | PV | 0.2 | 0.2 | Jun 2001 | Operating | — | 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% | 738 MW |
Nearby plants
Within 80 km.
| El Sol BESS | 50 MW | 8.5 km |
| White Tank Energy Storage | — | 11.5 km |
| T0588 Phoenix - AZ | 1 MW | 12.1 km |
| West Phoenix | 1,207 MW | 13.8 km |
| Luke Solar | 11 MW | 15.6 km |
| TJX Phoenix | 3 MW | 15.7 km |