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🇺🇸 Millstone

Name: Millstone
Address: United States

Nuclear power plant · United States

Operational

Capacity≈2,689 MW

Units3

First Online1971

Construction Start1966

Reactor power (NRC)100% avg · 2026-09-03

Reactor TypeBWR, PWR

Coordinates41.312, -72.166

Millstone is a nuclear power station in United States. Of its 3 recorded unit(s), 2 reactors are operational, 1 permanently shut down. Combined net capacity of the operating units is about 2,689 MW. As of 2026-09-03, 2 of 2 reactors at this site were generating, according to the U.S. NRC daily status report. The first unit reached commercial operation in 1971. Reactor technology on site: BWR, PWR.

Reactor units at Millstone

Unit	Status	Reactor type	Net capacity	Key dates
Millstone-1	Shut Down	BWR	660 MW	Construction 1966 · Grid 1971 · Shutdown 1998
Millstone-2	Operational	PWR CE 2LP (DRYAMB)	870 MW	Construction 1969 · Grid 1975
Millstone-3	Operational	PWR WH 4LP (DRYSUB)	1,159 MW	Construction 1974 · Grid 1986

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Contains information from GeoNuclearData, made available under the ODbL. Sources & methodology. Data compiled from open datasets (GeoNuclearData and operator reports); figures are approximate — verify official status with IAEA PRIS. See the United States nuclear overview or browse all nuclear sites.