Gateway Generating Station
Natural gas power plant in Contra Costa County, California. 619.7 MW of nameplate capacity across 3 generators, operated by Pacific Gas & Electric Co..
Also known as EIA plant 56476
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Key facts
- Capacity
- 619.7 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- January 2009First generator online
- Operator
- Pacific Gas & Electric Co.EIA operator ID 14328
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Contra Costa County, CA38.0175, −121.7587
- EIA plant ID
- 56476EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Gateway produces
Free · EIA-923Net generation, 2025
2.91 TWh
2,911,928 MWh, final
Capacity factor, 2025
53.6%
2024: 52.7%
January to July 2026
822 GWh
Provisional
Range, 2015 to 2025
2.4–3.4
TWh a year. Low 2016, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | 152,165 | Not reported | 1 of 12 |
| 2010 | 3,099,250 | 57.1% | 12 of 12 |
| 2011 | 2,647,973 | 48.8% | 12 of 12 |
| 2012 | 3,172,092 | 58.3% | 12 of 12 |
| 2013 | 3,182,079 | Not reported | 12 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | 3,310,823 | 61.0% | 12 of 12 |
| 2016 | 2,435,950 | 44.8% | 12 of 12 |
| 2017 | 2,779,798 | 51.2% | 12 of 12 |
| 2018 | 2,929,751 | 54.0% | 12 of 12 |
| 2019 | 2,872,858 | 52.9% | 12 of 12 |
| 2020 | 2,855,300 | 52.5% | 12 of 12 |
| 2021 | 3,433,178 | 63.2% | 12 of 12 |
| 2022 | 2,438,705 | 44.9% | 12 of 12 |
| 2023 | 3,085,208 | 56.8% | 12 of 12 |
| 2024 | 2,866,951 | 52.7% | 12 of 12 |
| 2025 | 2,911,928 | 53.6% | 12 of 12 |
| 2026 (provisional, partial year) | 821,707 | 26.1% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDCO₂, 2025
1.26M
US short tons. 2024: 1.23M
SO₂, 2025
6
US short tons
NOx, 2025
75
US short tons
CO₂ per MWh, calculated
0.43 t
About 867 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (GT1, GT2), matched to EIA plant 56476 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
Not reported
million gallons as reported; not used, see note
Consumption, 2024
Not reported
million gallons
Source
Not reported
Dry cooling
Watershed stress
High · 0.670
USGS SUI, HUC12 Markley Canyon-San Joaquin River
0 of 12 cooling months report withdrawal. Dry cooling with no reported withdrawal; not tested. Consumption is below 5% of a large reported withdrawal, so the withdrawal is not used. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| A | Natural Gas Fired Combined Cycle | 203.2 | January 2009 |
| B | Natural Gas Fired Combined Cycle | 203.2 | January 2009 |
| C | Natural Gas Fired Combined Cycle | 213.3 | January 2009 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Pacific Gas & Electric Co. as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Gateway
More plants operated by Pacific Gas & Electric Co.
Questions about Gateway
How much power does Gateway Generating Station produce?
Gateway Generating Station reported 2,911,928 MWh (2.91 TWh) of net generation in 2025, a 53.6% capacity factor on 619.7 MW of nameplate capacity. From January to July 2026 it reported 822 GWh, which is provisional.
Where is Gateway Generating Station?
Gateway Generating Station is in Contra Costa County, California, at 38.0175, −121.7587. It is in the California Independent System Operator balancing area (CISO).
Who operates Gateway Generating Station?
EIA-860M for August 2026 lists Pacific Gas & Electric Co. as the operator (EIA operator ID 14328). The operator is not always the owner.
When did Gateway Generating Station start operating?
Its first generator began operating in January 2009, according to EIA-860M.
Does InfraMap have power prices for Gateway Generating Station?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Gateway Generating Station, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page