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Thundermist Hydro

Hydro power plant · Providence County, Rhode Island

Nameplate capacity
1.2 MW
Rank in Rhode Island
#108
of 110 plants
In service since
1981
June 1981

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
City of Woonsocket
County
Providence County
Generating units
1
Share of state capacity
0.05%
Rank among hydro plants in Rhode Island
#3 of 3
EIA plant code
54688

Generating units

Individual generating units at Thundermist Hydro
UnitTechnologyNameplateSummerOnlineStatus
HYD1Conventional Hydroelectric1.2 MW1.1 MW1981Operating

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 Rhode Island

A Street 1Solar1.2 MW
Foster SolarSolar1.2 MW
BrooksideSolar1.0 MW
McAllister LandfillSolar1.0 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 1.2 MW solar plant and a 1.2 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 Rhode Island power plants · What Rhode Island actually generates