24 MW Wind operating in Sullivan, NH — ISO New England Inc.
24 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2008
Operating Since
Coordinates
43.2330, -72.1455
County
Sullivan, NH
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Avangrid Power LLC | Avangrid Renewables | — |
| Owner(s) | Avangrid Power LLC | Avangrid | — |
| Status | Operating | operating | — |
Lempster Mountain Wind Power Project is a 24-megawatt wind farm, opened in 2008 in Lempster, New Hampshire in the northeast United States. Owned by Avangrid, it is the first major wind farm in the state of New Hampshire.
Read more on WikipediaLempster Wind LLC is a 24 MW wind power plant located in Sullivan County, New Hampshire. The facility began operating in 2008 and is owned and operated by Avangrid Power LLC, a subsidiary of Avangrid. The plant utilizes onshore wind turbine technology, with a single generator. It ranks as the fourth-largest of five wind plants in the state, and 1049th nationally out of 1424 wind plants.
The plant's wind turbines have a hub height of 78 meters and a rotor diameter of 87 meters. The turbines were manufactured by Gamesa, model G87-2.0. In its most recent year of operation, Lempster Wind generated 67,652 MWh of electricity, achieving a capacity factor of 32.2%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
34.5 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Lempster
8.0K MWh
Latest Month
67.7K MWh
Annual Generation
32.2%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.NEWHAMPSHIRE
Node Source
Plant coordinates only
SmartestEnergy to purchase wind energy in New Hampshire
Avangrid will supply wind energy to SmartestEnergy from the Lempster and Groton wind farms in New Hampshire through a PPA contract.
Iberdrola’s Avangrid Signs US Power Deal
Avangrid has signed a contract with SmartestEnergy for the full power capacity from two of Avangrid's energy projects in New Hampshire.
Last updated 2026-03-15
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