How many power plants does Massachusetts Mun Wholes Electric operate?

EIA-860M lists 6 operating plants against “Massachusetts Mun Wholes Electric Co” for 2026-07, totalling 635 MW of nameplate capacity in 1 state.

Is Massachusetts Mun Wholes Electric the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Massachusetts Mun Wholes Electric power plants

Every generating plant EIA-860M files against Massachusetts Mun Wholes Electric for 2026-07: 6 plants, 635 MW of nameplate capacity, across 1 state and 5 energy sources.

EIA files this entity as “Massachusetts Mun Wholes Electric Co”.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 6
Nameplate capacity: 635 MW
States: 1; MA
Energy sources: 5

Massachusetts Mun Wholes Electric plants by energy source

Battery2 plants · 6 MW
Natural gas1 plants · 65 MW
Petroleum1 plants · 542 MW
Solar1 plants · 3 MW
Wind1 plants · 20 MW

Full list of Massachusetts Mun Wholes Electric power plants

Power plants operated by Massachusetts Mun Wholes Electric Co

Stony Brook3 technologies	Massachusetts Mun Wholes Electric Co	Hampden	541.5	10	1981	Operating
MMWEC Simple Cycle Gas TurbineNatural Gas Fired Combustion Turbine	Massachusetts Mun Wholes Electric Co	Essex	65	1	2024	Operating
Berkshire Wind Power ProjectOnshore Wind Turbine	Massachusetts Mun Wholes Electric Co	Berkshire	19.6	3	2011	Operating
Ashburnham Energy Storage ProjectBatteries	Massachusetts Mun Wholes Electric Co	Worcester	3	1	2019	Operating
Beebe Substation Battery StorageBatteries	Massachusetts Mun Wholes Electric Co	Middlesex	3	1	2019	Operating
SELCO Community SolarSolar Photovoltaic	Massachusetts Mun Wholes Electric Co	Worcester	3	1	2018	Operating

Massachusetts Mun Wholes Electric: FAQ

How many power plants does Massachusetts Mun Wholes Electric operate?: EIA-860M lists 6 operating plants against “Massachusetts Mun Wholes Electric Co” for 2026-07, totalling 635 MW of nameplate capacity in 1 state.
Is Massachusetts Mun Wholes Electric the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.