RIPON MILL
OperatingNatural Gas power plant
- Capacity
- 50 MW
- Primary fuel
- Natural Gas
- County
- San Joaquin County
- Operator
- RIPON COGENERATION LLC
- Status
- Operating
- Commissioned
- 1988
- EIA plant ID
- 50299
- Coordinates
- 37.7325, -121.1160
RIPON MILL, a 50 MW Natural Gas power plant in San Joaquin County, California. Operated by RIPON COGENERATION LLC, commissioned 1988.
Weather peril exposure
RIPON MILL is a 50 MW natural gas power plant in San Joaquin County, CA, operated by RIPON COGENERATION LLC, commissioned in 1988. San Joaquin County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.2 of 5 at the 6th national percentile. Earthquake is the leading peril, rated Relatively High by FEMA at the 96th 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.
San Joaquin County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Earthquake | Relatively High | 96th | 4.8 of 5 | 0.11 |
| Wildfire | Relatively Moderate | 92nd | 4.7 of 5 | <0.01 |
| Heat wave | Relatively High | 65th | 3.6 of 5 | 7.0 |
| Riverine flooding | Relatively High | 57th | 3.3 of 5 | 1.1 |
| Tornado | Relatively Low | 12th | 1.5 of 5 | 0.18 |
| Hail | Relatively Low | 6th | 1.2 of 5 | 0.07 |
| Lightning | Relatively High | 5th | 1.2 of 5 | 7.7 |
| Strong wind | Relatively Low | 2nd | 1.1 of 5 | 0.05 |
| Winter weather | Relatively Low | 1st | 1.1 of 5 | 0.20 |
Perils not assessed in San Joaquin 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 "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
| Ice storm | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for San Joaquin 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.