- Combustion
- Wind & solar
- Under construction
- Retired
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- Under construction
- Retired
Contra Costa: location and 3 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Contra Costa
Power plant · Gas, steam turbine
Key facts
Power plant · Gas, steam turbineran 2% of 2012 Retired- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1964
- Net generation, 2012
- 131,370 MWh
- Location
- Contra Costa County, California
- Operated by
- NRG Delta LLC
Output
- Gas
Details
Who’s behind it
- Owner
- NRG Energy, Inc
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- Technology
- Gas, steam turbine source: “Natural Gas Steam Turbine”
- Age
- 62 years since 1964
All 2 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| EPA greenhouse gas reporting (GHGRP) |
|
| Balancing authority code | CISO |
Retirement
EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.- Retired
- May 2013
- Capacity retired
- 718 MW
- Generators retired
- 2
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 6 | Natural Gas Steam Turbine | 359 MW | Retired | May 2013 |
| 7 | Natural Gas Steam Turbine | 359 MW | Retired | May 2013 |
Grid
EIA-860Grid fieldsAs the plant reported them to EIA-860 (Schedule 2).- Balancing authority
- CISO
Transmission lines within 15 mi (10)
Connection points within 15 mi (1)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| NRG Delta LLC | Operator | EIA-860M | ||
| NRG Energy, Inc | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
Timeline
- Stated Units 6, 7 scheduled to retire, 718 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · LBNL · CAISO · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M
- LBNLYin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- CAISOSource: California ISO
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Oakley Generating Station Withdrawn | Gas, combined cycle | 1.1 mi | 672.3 |
| Pittsburg RV Solar Under construction | Solar | 4.4 mi | 2.8 |
| Solano Wind Postponed | Wind | 6.7 mi | 95.5 |