MAPLE RIDGE WIND FARM

Operating

Wind 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

See it on the map

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.

1.1 of 5Modeled catastrophe exposure
LowExposure band
Ice stormLeading peril
Very LowFEMA county risk rating

Lewis County hazard ratings

PerilFEMA ratingNational percentilePeril scoreEvents per year
Ice stormRelatively Moderate84th4.4 of 50.73
Riverine floodingRelatively Low66th3.7 of 51.0
Winter weatherRelatively Moderate62nd3.5 of 542.1
Strong windRelatively Low58th3.3 of 50.94
EarthquakeVery Low51st3.1 of 5<0.01
HurricaneVery Low46th2.8 of 5<0.01
TornadoVery Low15th1.6 of 50.13
LightningVery Low14th1.5 of 525.8
HailVery Low8th1.3 of 51.0
Heat waveVery Low3rd1.1 of 51.2
WildfireVery Low2nd1.1 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.

PerilWhy it is not scored
Coastal floodingFEMA 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.