Hydroelectric power plants in Rhode Island

3 operating hydroelectric power plants in Rhode Island with 4 MW of hydroelectric capacity, largest first. From EIA-860M, August 2026.

Plants

Hydroelectric capacity

4 MW

Net generation, 2025

5.34 GWh

2 of 3 plants reported

Largest

Blackstone/Tupperware

2 MW

Largest hydroelectric power plants in Rhode Island

#	Plant	Hydroelectric MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	Blackstone/TupperwareProvidence County	1.6	2.1	14.9%	Blackstone Hydro Inc.
2	Pawtucket Hydroelectric ProjectProvidence County	1.6	–	–	Relevate Power Management LLC
3	Thundermist HydroProvidence County	1.2	3.3	31.0%	City of Woonsocket - (RI)

Projects where hydroelectric is the largest fuel or at least a fifth of nameplate capacity. MW is hydroelectric nameplate only; net generation covers the whole project. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

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All plants in Rhode Island Largest hydroelectric power plants in the US