Ladysmith Dam

E. Warden Ave., Ladysmith, WI 54848

Plant Summary Information

Ladysmith Dam is ranked #46 out of 66 hydroelectric power plants in Wisconsin in terms of total annual net electricity generation.

Ladysmith Dam is comprised of 3 generators and generated 1.3 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Ladysmith Dam
Utility Name	Northern States Power Co - Minnesota
Location	Rusk County, WI
Initial Operation Date	January 1940
Last Update	Dec 2025
Annual Generation	9.6 GWh
Annual Consumption	35.0 k MMBtu
Ranked #6,335 out of 13,081 Power Plants Nationwide
Ranked #915 out of 1,311 Water Power Plants Nationwide
Ranked #139 out of 260 Wisconsin Power Plants
Ranked #46 out of 66 Wisconsin Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Ladysmith Dam (3986)
Plant Address	E. Warden Ave., Ladysmith, WI 54848
Utility	Northern States Power Co - Minnesota (13781)
Latitude, Longitude	45.46444, -91.08361
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	January 1940
Annual Generation	9.6 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	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	MRO
Balancing Authority	Midcontinent Independent Transmission System Operator, Inc.. (MISO)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Flambeau River
Ash Impoundment	No
Transmission / Distribution Owner	Northern States Power Co (13780) WI
Grid Voltage	23.90 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.9 MW
Nameplate Power Factor	0.9
Summer Capacity	0.3 MW
Winter Capacity	0.3 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	January 1940
Planned Retirement	December 2035
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.9 MW
Nameplate Power Factor	0.9
Summer Capacity	0.3 MW
Winter Capacity	0.2 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	January 1940
Planned Retirement	December 2035
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	1.6 MW
Nameplate Power Factor	0.8
Summer Capacity	0.4 MW
Winter Capacity	0.3 MW
Minimum Load	0.4 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	November 1983
Planned Retirement	December 2035
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

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
#905	Dahowa Hydro	Greenwich, NY	9.9 GWh
#906	Dayton Hydro	Ottawa, IL	9.9 GWh
#907	Benton Falls Associates	Benton, ME	9.9 GWh
#908	Hailesboro 4 Plant	Hailesboro, NY	9.8 GWh
#909	Sandstone Rapids	Town of Stephenson, WI	9.7 GWh
#910	Weybridge	Weybridge, VT	9.7 GWh
#911	Austin	Austin, TX	9.7 GWh
#912	Island Park	Island Park, ID	9.7 GWh
#913	Union Falls	Au Sable Forks, NY	9.6 GWh
#914	Menominee Mill Marinette	Menominee, MI	9.6 GWh
#916	Webber	Lyons, MI	9.5 GWh
#917	Upper Beaver Falls Project	Beaver Falls, NY	9.5 GWh
#918	Middle Falls Hydro	Middle Falls, NY	9.4 GWh
#919	Stillwater B	Old Town, ME	9.4 GWh
#920	Yorba Linda	Yorba Linda, CA	9.4 GWh
#921	Hemlock Falls	Crystal Falls, MI	9.4 GWh
#922	Montgomery Creek Hydro	Montgomery Creek, CA	9.2 GWh
#923	Gross Hydro Plant	Boulder, CO	9.2 GWh
#924	Warrensburg Hydroelectric	Warrensburg, NY	9.2 GWh
#925	Merced Falls	Snelling, CA	9.1 GWh

Below are closest 20 power plants surrounding Ladysmith Dam.

Plant Name	Plant Location	Annual Generation	Distance
Arpin Dam	Radisson, WI	5.5 GWh	20.7 mi
Barron	Barron, WI	382.0 MWh	36.9 mi
Barron Solar Array	Barron, WI	5.8 GWh	36.4 mi
Big Falls	Glen Fora, WI	27.3 GWh	2.6 mi
Conrath DPC Solar	Conrath, WI	1.5 GWh	7 mi
Cornell	Chippewa Falls, WI	69.9 GWh	21.1 mi
Flambeau Crowley Rapids Project	Park Falls, WI	4.0 GWh	36.9 mi
Flambeau Hydroelectric Station	Ladysmith, WI	62.1 GWh	2.6 mi
Flambeau Solar Partners	Phillips, WI	4.4 GWh	35.1 mi
Hannibal	Gillman, WI	378.0 MWh	20.7 mi
Holcombe	Holcombe, WI	81.0 GWh	16.8 mi
Jim Falls	Jim Falls, WI	105.3 GWh	30 mi
LAC Courte Oreilles Hydroelect	Winter, WI	7.2 GWh	29.3 mi
New Auburn DPC Solar	New Auburn, WI	4.5 GWh	24.5 mi
Ogema	Ogema, WI	2.5 GWh	36.6 mi
Rice Lake Solar Array	Rice Lake, WI	7.0 GWh	32.9 mi
Thornapple	Bruce, WI	6.6 GWh	7.5 mi
Timberline Trail Gas Recovery	Weyerhaeser, WI	19.1 GWh	13.3 mi
Wissota	Chippewa Falls, WI	118.3 GWh	38.5 mi
Wolf River (Chipewa 1)	Stanley, WI	2.6 GWh	36 mi