USUS Grid ExplorerInfrastructure intelligence
Preliminary 2025 facility recordOperating

Charlton, MA · EIA plant 55079

Millennium Power

Millennium Power is a oil & gas power facility in Charlton, MA, with 428 MW of operating capacity.

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Operating capacity428 MW2 operating generators
Proposed capacity0 MW0 proposed generators
UtilityMillennium Power Company, LLCEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas428 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combined Cycle

Nearby in MA

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Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source