How many hydroelectric power plants are in Rhode Island?

3, with 4 MW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.

Is there a map of Rhode Island hydroelectric power plants?

Yes — the map above. Each dot is one hydroelectric power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest hydroelectric power plant in Rhode Island?

Blackstone/Tupperware, at 2 MW. The table is sorted largest first, so the rest follow it.

Is there a hydroelectric power plant near me in Rhode Island?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Rhode Island's hydroelectric power plants?

Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.

How current is this, and what is left out?

EIA-860M for 2026-07. Conventional hydroelectric. Pumped storage is counted separately. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Hydroelectric Power Plants in Rhode Island

Every operating hydroelectric power plant in Rhode Island on EIA-860M for 2026-07: 3 plants, 7 generating units and 4 MW of nameplate capacity across 1 county, most of it inside ISO New England.

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: 3; 7 generating units
Nameplate capacity: 4 MW
Counties: 1
Grid operator: ISO New England; covers most of these plants

Map of hydroelectric power plants in Rhode Island

Every one of the 3 plants is drawn at the coordinate EIA files for it.

Loading map…

Hydro · 3

List of hydroelectric power plants in Rhode Island

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

hydroelectric power plants in Rhode Island

Blackstone/TupperwareConventional Hydroelectric	Blackstone Hydro Inc.	Providence	1.6	4	1981	Operating
Pawtucket Hydroelectric ProjectConventional Hydroelectric	Relevate Power Management LLC	Providence	1.6	2	1989	Operating
Thundermist HydroConventional Hydroelectric	City of Woonsocket - (RI)	Providence	1.2	1	1981	Operating

Largest hydroelectric power plants in Rhode Island

1Blackstone/TupperwareProvidence County, Rhode Island1.6 MW
2Pawtucket Hydroelectric ProjectProvidence County, Rhode Island1.6 MW
3Thundermist HydroProvidence County, Rhode Island1.2 MW

Hydroelectric power plants by county in Rhode Island

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Providence	3	4.4

Hydroelectric Power Plants in Rhode Island: FAQ

How many hydroelectric power plants are in Rhode Island?: 3, with 4 MW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.
Is there a map of Rhode Island hydroelectric power plants?: Yes — the map above. Each dot is one hydroelectric power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest hydroelectric power plant in Rhode Island?: Blackstone/Tupperware, at 2 MW. The table is sorted largest first, so the rest follow it.
Is there a hydroelectric power plant near me in Rhode Island?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Rhode Island's hydroelectric power plants?: Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
How current is this, and what is left out?: EIA-860M for 2026-07. Conventional hydroelectric. Pumped storage is counted separately. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.