MAPLE RIDGE WIND FARM
OperatingWind power plant
- Capacity
- 322 MW
- Primary fuel
- Wind
- County
- Lewis County
- Operator
- FLAT ROCK WINDPOWER, LLC
- Status
- Operating
- Commissioned
- 2005
- EIA plant ID
- 56290
- Generators
- 4
- Technology
- Onshore Wind Turbine
- Net generation (2024)
- 637 GWh
- Capacity factor (2024, EIA nameplate)
- 23%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 43.7883, -75.5734
MAPLE RIDGE WIND FARM, a 322 MW Wind power plant in Lewis County, New York. Operated by FLAT ROCK WINDPOWER, LLC, commissioned 2005.
How MAPLE RIDGE WIND FARM compares
With 322 MW of capacity, MAPLE RIDGE WIND FARM ranks 30th among the 320 operating power plants Bywatts maps in New York and is the largest of the 20 operating Wind plants in the state. It accounts for about 20% of New York's operating Wind capacity and 0.8% of all operating capacity in the state. Nationally it is the 8th-largest of the 708 operating Wind plants in the database. Commissioned in 2005, it is newer than 84% of the 312 operating New York plants with a recorded commissioning year. It shares Lewis County with 18 other operating plants, including CH RESOURCES BEAVER FALLS and SOFT MAPLE.
EIA-860 lists 4 generators at the site with 321 MW of nameplate capacity, all onshore wind turbine technology. Net generation was 637 GWh in 2024 (a 23% capacity factor), down 7% from 2022. Its generators came online between 2005 and 2006.
Grid neighborhood
The nearest named substation is CHASES LAKE (230 kV), about 11.3 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by NIAGARA MOHAWK POWER CORP., under 0.1 miles away. Another 33 operating power plants totaling 353 MW sit within 25 miles; the largest is CH RESOURCES BEAVER FALLS (108 MW, Natural Gas). Within 50 miles is one mapped data center, Westelcom Networks Watertown in Watertown, about 21.3 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
MAPLE RIDGE WIND FARM is a 322 MW wind power plant in Lewis County, NY, operated by FLAT ROCK WINDPOWER, LLC, commissioned in 2005. Lewis County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.1 of 5 at the 4th national percentile. Ice storm is the leading peril, rated Relatively Moderate by FEMA at the 84th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a wind plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Lewis County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Ice storm | Relatively Moderate | 84th | 4.4 of 5 | 0.73 |
| Riverine flooding | Relatively Low | 66th | 3.7 of 5 | 1.0 |
| Winter weather | Relatively Moderate | 62nd | 3.5 of 5 | 42.1 |
| Strong wind | Relatively Low | 58th | 3.3 of 5 | 0.94 |
| Earthquake | Very Low | 51st | 3.1 of 5 | <0.01 |
| Hurricane | Very Low | 46th | 2.8 of 5 | <0.01 |
| Tornado | Very Low | 15th | 1.6 of 5 | 0.13 |
| Lightning | Very Low | 14th | 1.5 of 5 | 25.8 |
| Hail | Very Low | 8th | 1.3 of 5 | 1.0 |
| Heat wave | Very Low | 3rd | 1.1 of 5 | 1.2 |
| Wildfire | Very Low | 2nd | 1.1 of 5 | <0.01 |
Perils not assessed in Lewis 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 Lewis 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.