806.2 MW Natural Gas operating in Maricopa, AZ — Arizona Public Service Company
806.2 MW
Nameplate Capacity
7
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1972
Operating Since
Coordinates
33.4225, -111.9122
County
Maricopa, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Public Service Co | Arizona Public Service | — |
| Owner(s) | Arizona Public Service Co | Pinnacle West Capital | — |
| Status | Operating | — | — |
Ocotillo is a natural gas-fired power plant located in Maricopa County, Arizona. The plant has a total capacity of 806.2 MW across 7 generators utilizing natural gas fired combustion turbine technology. It began operating in 1972. The plant is owned by Pinnacle West Capital and operated by Arizona Public Service Co (APS).
Ocotillo 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 443,322 MWh, achieving a capacity factor of 6.3%. Ocotillo ranks as the 6th largest power plant out of 26 in Arizona, and 245th out of 945 nationally.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
69 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
57.1K MWh
Latest Month
443.3K MWh
Annual Generation
6.3%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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Last updated 2026-03-25
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