Stillwater Hydro Station

Free Street, Stillwater, ME 4468

Plant Summary Information

Stillwater Hydro Station is ranked #40 out of 50 hydroelectric power plants in Maine in terms of total annual net electricity generation.

Stillwater Hydro Station is comprised of 4 generators and generated 790.0 MWh during the 3-month period between September 2025 to December 2025.

Plant Name	Stillwater Hydro Station
Utility Name	Brookfield Black Bear Hydro, LLC
Location	Penobscot County, ME
Initial Operation Date	January 1913
Last Update	Dec 2025
Annual Generation	5.9 GWh
Annual Consumption	22.0 k MMBtu
Ranked #7,868 out of 13,081 Power Plants Nationwide
Ranked #1,045 out of 1,311 Water Power Plants Nationwide
Ranked #160 out of 236 Maine Power Plants
Ranked #40 out of 50 Maine Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Stillwater Hydro Station (1478)
Plant Address	Free Street, Stillwater, ME 4468
Utility	Brookfield Black Bear Hydro, LLC (59178)
Latitude, Longitude	44.9094, -68.6833
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	January 1913
Annual Generation	5.9 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	Penobscot River
Ash Impoundment	No
Transmission / Distribution Owner	Versant Power (1179) ME
Grid Voltage	12.50 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.4 MW
Nameplate Power Factor	0.8
Summer Capacity	0.5 MW
Winter Capacity	0.5 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1913
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	1H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.4 MW
Nameplate Power Factor	0.8
Summer Capacity	0.5 MW
Winter Capacity	0.5 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1913
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	1H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.4 MW
Nameplate Power Factor	0.8
Summer Capacity	0.5 MW
Winter Capacity	0.5 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1916
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	1H

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.6 MW
Nameplate Power Factor	0.8
Summer Capacity	0.6 MW
Winter Capacity	0.6 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	January 1929
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	1H

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
#1035	Notre Dame Hydro	South Bend, IN	6.0 GWh
#1036	Newcastle	Auburn, CA	6.0 GWh
#1037	Oconto Falls Lower	Oconto Falls, WI	6.0 GWh
#1038	Roaring Creek Water Power	Montgomery Creek, CA	6.0 GWh
#1039	Beldens	New Haven, VT	6.0 GWh
#1040	Way Dam	Crystal Falls, MI	6.0 GWh
#1041	Parker	Snelling, CA	6.0 GWh
#1042	Prickett	Pelkie, MI	5.9 GWh
#1043	Tunnel	Preston, CT	5.9 GWh
#1044	Ninth Street Hydropower Project	Alpena, MI	5.9 GWh
#1046	Fall Creek	Hornbrook, CA	5.9 GWh
#1047	Lost Creek I	Burney, CA	5.9 GWh
#1048	Angels	Angels Camp, CA	5.9 GWh
#1049	Middlesex 2	Moretown, VT	5.9 GWh
#1050	Lake Mathews	Riverside, CA	5.8 GWh
#1051	West Charleston	West Charleston, VT	5.8 GWh
#1052	Upper Newton Falls	Newton Falls, NY	5.8 GWh
#1053	New Hogan Power Plant	Valley Springs, CA	5.7 GWh
#1054	Macomb	Malone, NY	5.7 GWh
#1055	Gouldtown	Lyonsdale, NY	5.7 GWh

Below are closest 20 power plants surrounding Stillwater Hydro Station.

Plant Name	Plant Location	Annual Generation	Distance
Brewer (CSG)	Brewer, ME	7.0 GWh	7.9 mi
BRNG Nicolin (CSG)	Ellsworth, ME	5.8 GWh	21.7 mi
Broadway Solar (CSG)	Bangor, ME	6.3 GWh	7.6 mi
BWC Jimmie Pond	Hampden, ME	3.3 GWh	13.5 mi
Dynamic - Exeter Solar CSG	Exeter, ME	6.3 GWh	20.4 mi
Dynamic - Glenburn Broadway One (CSG)	Glenburn, ME	6.2 GWh	8.5 mi
Dynamic Corinth (CSG)	Corinth, ME	9.8 GWh	18.2 mi
Eastern Maine Medical Center	Bangor, ME	27.6 GWh	7.7 mi
Maine Independence Station	Veazie, ME	1.4 TWh	6 mi
ME CDG 004	Bangor, ME	3.0 GWh	7.1 mi
ME CDG 005	Veazie, ME	2.8 GWh	4.8 mi
Milford Hydro Station	Milford, ME	35.9 GWh	2.9 mi
Orono B	Orono, ME	17.2 GWh	2 mi
Orono Hydro Station	Orono, ME	6.2 GWh	2.2 mi
Penobscot Narrows Solar I	Bucksport, ME	7.2 GWh	22.9 mi
Pisgah Mountain Wind	Clifton, ME	28.3 GWh	12 mi
Pumpkin Hill	Lowell, ME	2.9 GWh	21.9 mi
Silver Maple	Clifton, ME	63.9 GWh	11.9 mi
SP-231 Clifton	Clifton, ME	5.4 GWh	9.9 mi
Stillwater B	Old Town, ME	9.4 GWh	0.2 mi