Metcalf Energy Center
Santa Clara County, California · EIA plant ID 55393 · Operator: Calpine Corp - Metcalf Energy Center
Nameplate635MWSummer 557 MW
Generators3in service
Net generation1,718GWh12 mo to Aug 2026
Capacity factor35%gas/coal/oil units, summer MW
Heat rate7,604Btu/kWhfossil units, electric fuel, HHV
First online2005Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2005 | 2,020.9 | 72.0% | 7,128 |
| 2006 | 2,370.2 | 49.5% | 7,300 |
| 2007 | 2,935.9 | 61.4% | 7,093 |
| 2008 | 3,152.2 | 65.7% | 6,860 |
| 2009 | 2,778.7 | 58.1% | 6,899 |
| 2010 | 2,612.9 | 54.6% | 7,002 |
| 2011 | 1,598.4 | 33.4% | 7,167 |
| 2012 | 2,801.5 | 58.4% | 6,981 |
| 2013 | 3,131.7 | 65.5% | 7,015 |
| 2014 | 2,461.4 | 51.4% | 7,267 |
| 2015 | 3,171.1 | 66.3% | 7,438 |
| 2016 | 2,686.6 | 56.0% | 7,626 |
| 2017 | 2,081.8 | 43.5% | 7,701 |
| 2018 | 2,079.8 | 43.5% | 7,612 |
| 2019 | 2,566.1 | 53.6% | 7,556 |
| 2020 | 2,384.4 | 49.7% | 7,699 |
| 2021 | 2,335.5 | 48.8% | 7,790 |
| 2022 | 2,315.3 | 48.4% | 7,727 |
| 2023 | 2,338.6 | 47.9% | 7,654 |
| 2024 | 2,770.7 | 56.6% | 7,580 |
| 2025 | 2,334.4 | 47.8% | 7,596 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 200 | 170 | Jun 2005 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 200 | 170 | Jun 2005 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 235 | 217 | Jun 2005 | Operating | — | coming soon |
Owner / operator
Operator: Calpine Corp - Metcalf Energy Center. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Corp - Metcalf Energy Center | 100.0% | 635 MW |
Nearby plants
Within 80 km.
| Malech Solar Farm | 3 MW | 1.1 km |
| Hummingbird Energy Storage LLC | 75 MW | 3.6 km |
| Equinix San Jose | 1 MW | 3.9 km |
| Extreme San Ignacio | retired | 3.9 km |
| EQX015 Great Oaks Fuel Cell | 4 MW | 4 km |
| Equinix Great Oaks Blvd. Fuel Cell | 5 MW | 4 km |