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42 MW Wind operating in Aroostook, ME
42 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2007
Operating Since
Coordinates
46.5416, -67.8116
County
Aroostook, ME
Nearby Plants
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Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Evergreen Wind, LLC | TerraForm Power Operating LLC | — |
| Owner(s) | Evergreen Wind, LLC | TerraForm Power Operating LLC | — |
| Status | Operating | operating | — |
GEM identifies the owner as TerraForm Power Operating LLC
This entity is not yet in the GEM ownership database — chain unavailable.
The Mars Hill Wind Farm Project is a 42 MW wind power facility located in Aroostook County, Maine. The plant began operating in 2007 and is owned and operated by Evergreen Wind, LLC. It utilizes a single onshore wind turbine generator. The facility is connected to the New Brunswick System Operator balancing authority within the Northeast Power Coordinating Council (NPCC) NERC region.
The wind farm's latest annual generation was 118,868 MWh, achieving a capacity factor of 32.3%. The plant's wind turbine has a hub height of 80 meters and a rotor diameter of 77 meters. The turbine was manufactured by GE Wind and is model GE1.5-77. Mars Hill Wind Farm Project is ranked as the 12th largest wind farm in Maine out of 22, and 967th nationally out of 1424.
Generated from EIA, GEM, and public data sources
Grid Region
Other
Market
Bilateral Market
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
New Brunswick System Operator (NBSO)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
12.3K MWh
Latest Month
118.9K MWh
Annual Generation
32.3%
Capacity Factor
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2013
$1,895/kW
Est. Construction Cost
Total estimated cost: $79.6M
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This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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