Metcalf Energy Center
Calpine CorporationSanta Clara County
Metcalf Energy Center is a natural gas-fired power facility with 635 MW of EIA-reported nameplate capacity in Santa Clara County, California, registered as EIA Plant ID 55393. Calpine Corporation owns and operates the plant. The project was also developed to address generation deficiency in the Bay Area, particularly around San Jose.
Mapped infrastructure geometry associated with this asset.
Natural Gas Fired Combined Cycle
Metcalf Energy Center is operating.
230 kV · Pacific Gas and Electric Company (PG&E)
CAISO
EIA plant 55393 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | Operating | 200 | Unknown |
| CTG2 | Natural Gas Fired Combined Cycle | Operating | 200 | Unknown |
| STG1 | Natural Gas Fired Combined Cycle | Operating | 235 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CTG1 | 200 MW 170 MW summer | Natural Gas Fired Combined Cycle CT | Jun 2005 | Operating |
| CTG2 | 200 MW 170 MW summer | Natural Gas Fired Combined Cycle CT | Jun 2005 | Operating |
| STG1 | 235 MW 217 MW summer | Natural Gas Fired Combined Cycle CA | Jun 2005 | Operating |
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 CEC certified the project, and Bechtel announced that construction was expected to begin on the 600-MW facility.
CAISO · Santa Clara County
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.
EIA-860 lists generator CTG1, generator CTG2, generator STG1 with this operating date.
CEC-approved equipment upgrades, including hot-gas-path components, sensors, controls, and piping, were completed and increased output by 30 MW by reducing turbine heat rate.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Metcalf Energy Center reports 635 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Metcalf Energy Center is a Natural Gas Fired Combined Cycle facility in Santa Clara County, CA, participating in the CAISO market.
Metcalf Energy Center is in Santa Clara County, CA, inside the CAISO balancing area.
Metcalf Energy Center is operated by Calpine Corp - Metcalf Energy Center according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Metcalf Energy Center reported 1,838.2 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Metcalf Energy Center interconnects at PG&E Metcalf substation, on the Pacific Gas and Electric Company (PG&E) system.
By capacity, Metcalf Energy Center ranks #222 of 540 operating plants of the same technology nationally. It ranks #15 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.