Pastoria Energy Facility
Calpine CorporationKern County
Pastoria Energy Facility, LLC is a natural gas-fired power facility with 779 MW of EIA-reported nameplate capacity in Kern County, California, registered as EIA Plant ID 55656. Calpine Corporation owns and operates the plant. Pastoria is a large CAISO natural-gas combined-cycle facility in Kern County: the EIA record reports 779 MW of nameplate capacity across five generating units, while the California Energy Commission describes the certified project as nominally 750 MW. Commercial operation began on July 5, 2005.
Mapped infrastructure geometry associated with this asset.
Natural Gas Fired Combined Cycle
Pastoria Energy Facility, LLC is operating.
230 kV · Southern California Edison
EIA plant 55656 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| CT01 | Natural Gas Fired Combined Cycle | Operating | 168 | Unknown |
| CT02 | Natural Gas Fired Combined Cycle | Operating | 168 | Unknown |
| CT04 | Natural Gas Fired Combined Cycle | Operating | 168 | Unknown |
| ST03 | Natural Gas Fired Combined Cycle | Operating | 185 | Unknown |
| ST05 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CT01 | 168 MW 172 MW summer | Natural Gas Fired Combined Cycle CT | Jul 2005 | Operating |
| CT02 | 168 MW 172 MW summer | Natural Gas Fired Combined Cycle CT | Jul 2005 | Operating |
| CT04 | 168 MW 165 MW summer | Natural Gas Fired Combined Cycle CT | May 2005 | Operating |
| ST03 | 185 MW 165 MW summer | Natural Gas Fired Combined Cycle CA | Jul 2005 | Operating |
| ST05 | 90 MW |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
The California Energy Commission certified the nominally 750-MW natural-gas-fired combined-cycle Pastoria project under docket 99-AFC-07.
CAISO
CAISO · Kern County
| Natural Gas Fired Combined Cycle |
| Operating |
| 90 |
| Unknown |
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
The CEC approved conversion from aqueous to anhydrous ammonia for emissions control.
EIA-860 lists generator CT04, generator ST05 with this operating date.
EIA-860 lists generator CT01, generator CT02, generator ST03 with this operating date.
The CEC records the start of commercial operation for the Pastoria Energy Facility.
The CEC approved the Pastoria Energy Facility Expansion Project, a simple-cycle addition, but the project was never built.
The license for the unbuilt simple-cycle expansion expired.
The CEC approved replacement of selected Advanced Gas Path components on two of the three existing combustion turbines to support higher firing temperatures.
The CEC approved installation of a second brine crystallizer in the facility’s Zero Liquid Discharge system.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Pastoria Energy Facility reports 779 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Pastoria Energy Facility is a Natural Gas Fired Combined Cycle facility in Kern County, CA, participating in the CAISO market.
Pastoria Energy Facility is in Kern County, CA, inside the CAISO balancing area.
Pastoria Energy Facility is operated by Calpine Corp - Pastoria Energy Center according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Pastoria Energy Facility reported 3,200.8 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Pastoria Energy Facility interconnects at Pastoria Substation, on the Southern California Edison system.
By capacity, Pastoria Energy Facility ranks #151 of 540 operating plants of the same technology nationally. It ranks #6 of 64 in CA.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.