Ellsworth Hydro Station

Grant Street, Ellsworth, ME 4605

Plant Summary Information

Ellsworth Hydro Station is ranked #29 out of 50 hydroelectric power plants in Maine in terms of total annual net electricity generation.

Ellsworth Hydro Station is comprised of 4 generators and generated 1.2 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Ellsworth Hydro Station
Utility Name	Brookfield Black Bear Hydro, LLC
Location	Hancock County, ME
Initial Operation Date	July 1924
Last Update	Dec 2025
Annual Generation	18.3 GWh
Annual Consumption	64.6 k MMBtu
Ranked #5,540 out of 13,301 Power Plants Nationwide
Ranked #733 out of 1,316 Water Power Plants Nationwide
Ranked #70 out of 242 Maine Power Plants
Ranked #29 out of 50 Maine Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Ellsworth Hydro Station (1469)
Plant Address	Grant Street, Ellsworth, ME 4605
Utility	Brookfield Black Bear Hydro, LLC (59178)
Latitude, Longitude	44.5442, -68.4306
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	July 1924
Annual Generation	18.3 GWh
Fuel Types	Water

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	Yes
FERC Exempt Wholesale Generator Docket Number	99-776-000

Regulatory Information
Regulatory Status	Non-Regulated
NERC Region	NPCC
Balancing Authority	ISO New England Inc. (ISNE)
NAICS Code	Utilities (22)
Sector	IPP Non-CHP (2)
Water Source	Union River
Ash Impoundment	No
Transmission / Distribution Owner	Versant Power (1179) ME
Grid Voltage	34.50 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	2.5 MW
Nameplate Power Factor	0.8
Summer Capacity	2.6 MW
Winter Capacity	2.5 MW
Minimum Load	1 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	July 1924
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	2.4 MW
Nameplate Power Factor	0.8
Summer Capacity	2.5 MW
Winter Capacity	2.4 MW
Minimum Load	1 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	July 1924
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	2 MW
Nameplate Power Factor	0.8
Summer Capacity	2.1 MW
Winter Capacity	2 MW
Minimum Load	0.5 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	July 1938
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	2 MW
Nameplate Power Factor	0.8
Summer Capacity	2.1 MW
Winter Capacity	2 MW
Minimum Load	0.5 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	July 1938
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#723	Siphon Power Project	Bend, OR	19.0 GWh
#724	South Edwards	Fine, NY	19.0 GWh
#725	Chatuge	Hayesville, NC	18.9 GWh
#726	Lower Saranac Hydroelectric Facility	Plattsburgh, NY	18.7 GWh
#727	Burton Dam	Clayton, GA	18.5 GWh
#728	Herrings	Carthage, NY	18.4 GWh
#729	Spearfish Hydro	Spearfish, SD	18.4 GWh
#730	Wainiha Hydro	Hanalei, HI	18.4 GWh
#731	Verdi	Verdi, NV	18.3 GWh
#732	Hancock Creek Hydroelectric Project	Snoqualmie, WA	18.3 GWh
#734	Cadyville	Town ofSchuyler Falls, NY	18.2 GWh
#735	West Point PH	Pioneer, CA	18.1 GWh
#736	Mechanicville Hydroelectric Station	Mechanicville, NY	18.0 GWh
#737	PEC Headworks	Moses Lake, WA	17.7 GWh
#738	Winton	Winton, MN	17.6 GWh
#739	Vallecito Hydroelectric	Bayfield, CO	17.4 GWh
#740	Spaulding 1	Emigrant Gap, CA	17.4 GWh
#741	Cove Hydroelectric	Burney, CA	17.4 GWh
#742	Orono B	Orono, ME	17.2 GWh
#743	City of Peru Hydro-Electric Generating S	Utica, IL	17.2 GWh

Below are closest 20 power plants surrounding Ellsworth Hydro Station.

Plant Name	Plant Location	Annual Generation	Distance
BD Solar Ellsworth LLC	Augusta, ME	9.0 GWh	2.6 mi
BD Solar Hancock LLC	Augusta, ME	11.3 GWh	3.8 mi
Brewer (CSG)	Brewer, ME	7.0 GWh	22.4 mi
BRNG Nicolin (CSG)	Ellsworth, ME	5.8 GWh	6.6 mi
Bucksport Generation LLC	Bucksport, ME	26.7 GWh	18.5 mi
Bull Hill Wind Project	Eastbrook, ME	66.5 GWh	15.4 mi
BWC Jimmie Pond	Hampden, ME	3.3 GWh	24.9 mi
Caterpillar Hill	Sedgwick, ME	8.9 GWh	19.6 mi
Eastern Maine Medical Center	Bangor, ME	26.4 GWh	24.1 mi
Hancock Wind Plant	T22 MD, ME	115.5 GWh	20.5 mi
Maine Independence Station	Veazie, ME	1.4 TWh	23.7 mi
Mariaville Road Elsworth Solar, LLC	Ellsworth, ME	1.3 GWh	2.9 mi
ME CDG 005	Veazie, ME	2.8 GWh	24.7 mi
Orono Hydro Station	Orono, ME	6.2 GWh	25.9 mi
Penobscot Narrows Solar I	Bucksport, ME	7.2 GWh	18.9 mi
Pisgah Mountain Wind	Clifton, ME	28.3 GWh	16.7 mi
Silver Maple	Clifton, ME	63.9 GWh	17 mi
SP-231 Clifton	Clifton, ME	5.4 GWh	18.5 mi
Weaver Wind	Township 16, ME	214.4 GWh	18 mi
Wymans Deblois	Deblois, ME	7.8 GWh	25.6 mi