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422.4 MW Natural Gas Fired Combustion Turbine (238 MW) + Natural Gas Steam Turbine (87 MW) + Petroleum Liquids (98 MW) operating in Yuma, AZ
422.4 MW
Nameplate Capacity
8
Generators
units
Hybrid (3)
Technology
Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine + Petroleum Liquids
1959
Operating Since
Coordinates
32.7214, -114.7106
County
Yuma, AZ
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Public Service Co | Arizona Public Service | — |
| Owner(s) | Arizona Public Service Co, Imperial Irrigation District | Pinnacle West Capital | — |
| Status | Operating | — | — |
The Yucca power plant is located in Yuma County, Arizona. It has a total capacity of 422.4 MW across 8 generators and is operated by Arizona Public Service Co, a subsidiary of Pinnacle West Capital. The plant began operating in 1959 and utilizes a combination of natural gas-fired combustion turbine and steam turbine technologies, as well as petroleum liquids. Yucca is considered a hybrid plant due to its multiple fuel and technology types.
Yucca operates within the Arizona Public Service Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In the most recent year with available data, the plant generated 200,127 MWh, resulting in a capacity factor of 5.4%. Yucca ranks as the 22nd largest power plant in Arizona out of 26, and 532nd nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Arizona Public Service Company (AZPS)
Grid Voltage
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
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.
13.4K MWh
Latest Month
200.1K MWh
Annual Generation
5.4%
Capacity Factor
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CO₂ Intensity
842 lb/MWh
NOx
0.080 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.026 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
6.5%
Annual Net Gen
237 GWh
CO₂eq
843 lb/MWh
Subregion
WECC Southwest
2013
$965/kW
Est. Construction Cost
Total estimated cost: $407.7M
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.
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