HARBOR COGEN
OperatingNatural Gas power plant
- Capacity
- 107 MW
- Primary fuel
- Natural Gas
- County
- Los Angeles County
- Operator
- HARBOR COGENERATION CO.
- Status
- Operating
- Commissioned
- 1988
- EIA plant ID
- 50541
- Generators
- 3
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 17.4 GWh
- Capacity factor (2024, EIA nameplate)
- 1.8%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 33.7771, -118.2303
HARBOR COGEN, a 107 MW Natural Gas power plant in Los Angeles County, California. Operated by HARBOR COGENERATION CO., commissioned 1988.
How HARBOR COGEN compares
With 107 MW of capacity, HARBOR COGEN ranks 155th among the 874 operating power plants Bywatts maps in California and 62nd of the 190 operating Natural Gas plants in the state. It accounts for about 0.3% of California's operating Natural Gas capacity and 0.1% of all operating capacity in the state. Nationally it is the 663rd-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1988, it is older than 68% of the 859 operating California plants with a recorded commissioning year. It shares Los Angeles County with 110 other operating plants, including AES ALAMITOS LLC and CASTAIC.
EIA-860 lists 3 generators at the site with 107 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 17.4 GWh in 2024 (a 1.8% capacity factor). Its generators came online between 1988 and 2001.
Grid neighborhood
The nearest named substation is CARBOGEN, about 0.2 miles away; the closest transmission line found within 10 miles is a 230 kV line, about 0.2 miles away. Another 53 operating power plants totaling 8,266 MW sit within 25 miles; the largest is AES ALAMITOS LLC (1,997 MW, Natural Gas). Within 50 miles are 16 mapped data centers; the nearest is Equinix LA3/LA4 - Los Angeles, El Segundo in El Segundo, about 13.3 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
HARBOR COGEN is a 107 MW natural gas power plant in Los Angeles County, CA, operated by HARBOR COGENERATION CO., commissioned in 1988. Los Angeles County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 25th national percentile. Earthquake is the leading peril, rated Very High by FEMA at the 99th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Los Angeles County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Very High | 99th | 5.0 of 5 | 0.09 |
| Wildfire | Very High | 98th | 4.9 of 5 | <0.01 |
| Riverine flooding | Very High | 92nd | 4.7 of 5 | 4.0 |
| Heat wave | Relatively High | 50th | 3.0 of 5 | 9.5 |
| Coastal flooding | Relatively High | 34th | 2.4 of 5 | 2.2 |
| Tornado | Relatively High | 13th | 1.5 of 5 | 0.49 |
| Hail | Relatively Moderate | 12th | 1.5 of 5 | 0.10 |
| Strong wind | Relatively Moderate | 0th | 1.0 of 5 | 0.15 |
| Winter weather | Relatively Moderate | 0th | 1.0 of 5 | 6.6 |
| Lightning | Very High | 0th | 1.0 of 5 | 8.4 |
Perils not assessed in Los Angeles County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Hurricane | FEMA rating is "No Rating" for this county |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Los Angeles County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.