Montague Site 36-Grosolar

☀ SolarElectric Utility4 MW capacity

205th largest plant in Massachusetts · 8349th nationally

Montague Site 36-Grosolar is a solar power plant in Massachusetts with a nameplate capacity of 4.1 MW. It generates roughly 5.2k MWh per year — enough to power about 498 average U.S. homes.

Its capacity factor of 15% reflects intermittent or peaking operation.

PeakingMid-meritBaseload0%40%80%100%15%
Peaking — intermittent or backup
Capacity4 MWnameplate
Annual Generation5.2k MWhEPA eGRID
Capacity Factor15%of theoretical max
Annual CO₂metric tons

Location

Plant NameMontague Site 36-Grosolar
OperatorNstar Electric Company
CityMillers Falls
CountyFranklin County
StateMassachusetts
ZIP01349
Coordinates42.50000, -72.50000

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasHydroelectricSolarBattery Storage

Generators (1)

IDTechnologyFuelCapacityStatusOnline
REC34Solar PhotovoltaicSolar4.1 MWOperating2018

Grid context

NERC RegionNPCC
Balancing AuthorityIso New England Inc.

About Solar plants

Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.

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