GMMGREENIDGE LLC
OperatingCoal power plant
- Capacity
- 113 MW
- Primary fuel
- Coal
- County
- Yates County
- Operator
- GMM HOLDINGS 1 LLC
- Status
- Operating
- Commissioned
- 1953
- EIA plant ID
- 2527
- Coordinates
- 42.6794, -76.9483
GMMGREENIDGE LLC, a 113 MW Coal power plant in Yates County, New York. Operated by GMM HOLDINGS 1 LLC, commissioned 1953.
Weather peril exposure
GMMGREENIDGE LLC is a 113 MW coal power plant in Yates County, NY, operated by GMM HOLDINGS 1 LLC, commissioned in 1953. Yates County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.2 of 5 at the 5th national percentile. Riverine flooding is the leading peril, rated Relatively Low by FEMA at the 85th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Yates County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Low | 85th | 4.4 of 5 | 0.71 |
| Ice storm | Relatively Moderate | 67th | 3.7 of 5 | 0.32 |
| Hurricane | Relatively Low | 61st | 3.4 of 5 | 0.02 |
| Strong wind | Relatively Low | 32nd | 2.3 of 5 | 1.6 |
| Winter weather | Very Low | 23rd | 1.9 of 5 | 13.3 |
| Earthquake | Very Low | 19th | 1.8 of 5 | <0.01 |
| Tornado | Relatively Low | 16th | 1.7 of 5 | 0.06 |
| Hail | Relatively Low | 13th | 1.5 of 5 | 1.9 |
| Wildfire | Very Low | 7th | 1.3 of 5 | <0.01 |
| Heat wave | Very Low | 5th | 1.2 of 5 | 3.1 |
| Lightning | Relatively Low | 3rd | 1.1 of 5 | 29.7 |
Perils not assessed in Yates 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 |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Yates 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.