GRAYSON
OperatingNatural Gas power plant
- Capacity
- 264 MW
- Primary fuel
- Natural Gas
- County
- Los Angeles County
- Operator
- CITY OF GLENDALE - (CA)
- Status
- Operating
- Commissioned
- 2004
- EIA plant ID
- 377
- Coordinates
- 34.1556, -118.2782
GRAYSON, a 264 MW Natural Gas power plant in Los Angeles County, California. Operated by CITY OF GLENDALE - (CA), commissioned 2004.
Weather peril exposure
GRAYSON is a 264 MW natural gas power plant in Los Angeles County, CA, operated by CITY OF GLENDALE - (CA), commissioned in 2004. 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.