Yucca
Natural gas and oil power plant in Yuma County, Arizona. 422.4 MW of nameplate capacity across 8 generators, operated by Arizona Public Service Co.
Also known as Yucca Power Plant · EIA plant 120
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 422.4 MWNatural gas 324.7 · Oil 97.7
- Generators
- 8 operatingEIA-860M, August 2026
- Operating since
- April 1959First generator online
- Operator
- Arizona Public Service CoEIA operator ID 803
- Grid
- AZPSBalancing authority AZPS
- Price nodes
- None linkedNo verified ISO node
- Location
- Yuma County, AZ32.7214, −114.7106
- EIA plant ID
- 120EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Yucca produces
Free · EIA-923Net generation, 2025
200 GWh
200,127 MWh, final
Capacity factor, 2025
5.4%
2024: Not reported
January to July 2026
58.2 GWh
Provisional
Range, 2015 to 2025
200.1–456.8
GWh a year. Low 2025, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 373,513 | Not reported | 12 of 12 |
| 2001 | 561,496 | Not reported | 12 of 12 |
| 2002 | 400,642 | Not reported | 12 of 12 |
| 2003 | 232,721 | Not reported | 10 of 12 |
| 2004 | 256,852 | Not reported | 12 of 12 |
| 2005 | 245,392 | Not reported | 12 of 12 |
| 2006 | 295,469 | Not reported | 12 of 12 |
| 2007 | 318,562 | Not reported | 12 of 12 |
| 2008 | 325,310 | Not reported | 12 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | 421,666 | 12.5% | 12 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | 97,376 | 8.0% | 4 of 12 |
| 2015 | 330,414 | 8.9% | 12 of 12 |
| 2016 | 360,704 | 9.7% | 12 of 12 |
| 2017 | 312,685 | 8.4% | 12 of 12 |
| 2018 | 456,777 | 12.3% | 12 of 12 |
| 2019 | 414,041 | 11.1% | 12 of 12 |
| 2020 | 416,760 | 11.2% | 12 of 12 |
| 2021 | 340,590 | 9.1% | 12 of 12 |
| 2022 | 293,443 | 7.9% | 12 of 12 |
| 2023 | 236,544 | Not reported | 12 of 12 |
| 2024 | 298,457 | Not reported | 12 of 12 |
| 2025 | 200,127 | 5.4% | 12 of 12 |
| 2026 (provisional, partial year) | 58,156 | 2.7% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2023
99,532
US short tons. 2022: 178,221
SO₂, 2023
1
US short tons
NOx, 2023
9
US short tons
CO₂ per MWh, calculated
0.42 t
About 842 lb per MWh
3 of 3 EPA units reported CO₂ in 2023 (1, CT5, CT6), matched to EIA plant 120 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GT1 | Natural Gas Fired Combustion Turbine | 22.3 | July 1971 |
| GT2 | Natural Gas Fired Combustion Turbine | 22.3 | July 1971 |
| GT3 | Natural Gas Fired Combustion Turbine | 72.4 | June 1973 |
| GT4 | Petroleum Liquids | 72.4 | July 1974 |
| GT5 | Natural Gas Fired Combustion Turbine | 60.5 | June 2008 |
| GT6 | Natural Gas Fired Combustion Turbine | 60.5 | June 2008 |
| GT21 | Petroleum Liquids | 25.3 | December 1978 |
| ST1 | Natural Gas Steam Turbine | 86.7 | April 1959 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Arizona Public Service Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Yucca
More plants operated by Arizona Public Service Co
Questions about Yucca
How much power does Yucca produce?
Yucca reported 200,127 MWh (200 GWh) of net generation in 2025, a 5.4% capacity factor on 422.4 MW of nameplate capacity. From January to July 2026 it reported 58.2 GWh, which is provisional.
Where is Yucca?
Yucca is in Yuma County, Arizona, at 32.7214, −114.7106. It is in the Arizona Public Service Company balancing area (AZPS).
Who operates Yucca?
EIA-860M for August 2026 lists Arizona Public Service Co as the operator (EIA operator ID 803). The operator is not always the owner.
Is Yucca a natural gas or a oil plant?
Both. Natural gas capacity totals 324.7 MW and oil capacity totals 97.7 MW.
When did Yucca start operating?
Its first generator began operating in April 1959, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page