Mars Hill Wind Farm Project
Wind power plant · Aroostook County, Maine
Nameplate capacity
42 MW
Rank in Maine
#30
of 274 plants
In service since
2007
March 2007
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Evergreen Wind, LLC
- County
- Aroostook County
- Generating units
- 1
- Share of state capacity
- 0.68%
- Rank among wind plants in Maine
- #12 of 22
- EIA plant code
- 56448
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | 42 MW | 42 MW | 2007 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Maine
| ReEnergy Stratton LLC | Other | 47 MW |
| Passadumkeag Windpark LLC | Wind | 43 MW |
| ReEnergy Livermore Falls | Other | 40 MW |
| Cape Gas Turbine | Other | 35 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 42 MW solar plant and a 42 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Maine power plants · What Maine actually generates