AVALON/MAYO HYDROPOWER
OperatingHydro power plant
- Capacity
- 1 MW
- Primary fuel
- Hydro
- County
- Rockingham County
- Operator
- AVALON/MAYO HYDROPOWER LLC
- Status
- Operating
- Commissioned
- 1997
- EIA plant ID
- 54801
- Coordinates
- 36.4237, -79.9525
AVALON/MAYO HYDROPOWER, a 1 MW Hydro power plant in Rockingham County, North Carolina. Operated by AVALON/MAYO HYDROPOWER LLC, commissioned 1997.
Weather peril exposure
AVALON/MAYO HYDROPOWER is a 1 MW hydro power plant in Rockingham County, NC, operated by AVALON/MAYO HYDROPOWER LLC, commissioned in 1997. Rockingham County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.8 of 5 at the 21st national percentile. Lightning is the leading peril, rated Relatively Moderate by FEMA at the 98th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Rockingham County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Lightning | Relatively Moderate | 98th | 4.9 of 5 | 46.3 |
| Ice storm | Relatively Moderate | 72nd | 3.9 of 5 | 1.9 |
| Hurricane | Relatively Low | 70th | 3.8 of 5 | 0.09 |
| Riverine flooding | Relatively Moderate | 58th | 3.3 of 5 | 1.9 |
| Earthquake | Relatively Low | 45th | 2.8 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 33rd | 2.3 of 5 | 2.6 |
| Tornado | Relatively Low | 32nd | 2.3 of 5 | 0.18 |
| Hail | Relatively Low | 30th | 2.2 of 5 | 4.8 |
| Wildfire | Very Low | 18th | 1.7 of 5 | <0.01 |
| Winter weather | Relatively Moderate | 16th | 1.6 of 5 | 6.8 |
| Heat wave | Relatively Low | 14th | 1.6 of 5 | 1.7 |
Perils not assessed in Rockingham 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 Rockingham 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.