Hydroelectric power plants in Wisconsin

63 operating hydroelectric power plants in Wisconsin with 516 MW of hydroelectric capacity, largest first. From EIA-860M, August 2026.

Plants

Hydroelectric capacity

516 MW

Net generation, 2025

1.85 TWh

Largest

Jim Falls

60 MW

Largest hydroelectric power plants in Wisconsin

#	Plant	Hydroelectric MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	Jim FallsChippewa County	60	105	20.1%	Northern States Power Co - Minnesota
2	WissotaChippewa County	39	118	34.3%	Northern States Power Co - Minnesota
3	CornellChippewa County	35	69.9	22.6%	Northern States Power Co - Minnesota
4	HolcombeChippewa County	34	81.0	27.3%	Northern States Power Co - Minnesota
5	Prairie Du SacSauk County	33	153	52.2%	Wisconsin Power & Light Co
6	St Croix FallsPolk County	23	80.0	39.3%	Northern States Power Co - Minnesota
7	Chippewa FallsChippewa County	22	56.1	29.6%	Northern States Power Co - Minnesota
8	PetenwellJuneau County	20	97.2	55.5%	Wisconsin River Power Company
9	Flambeau Hydroelectric StationRusk County	19	50.6	–	Dairyland Power Coop
10	Grandfather FallsLincoln County	17	79.1	52.5%	Wisconsin Public Service Corp
11	Castle RockAdams County	15	83.3	63.4%	Wisconsin River Power Company
12	DellsEau Claire County	12	36.9	34.2%	Northern States Power Co - Minnesota
13	KilbournColumbia County	9.7	49.2	57.9%	Wisconsin Power & Light Co
14	Twin Falls (WI)Florence County	9.2	37.0	45.9%	Wisconsin Electric Power Co
15	Little Quinnesec Falls Hydro ProjectMarinette County	9.0	60.8	77.1%	Eagle Creek Renewable Energy, LLC
16	New BadgerOutagamie County	8.2	44.0	61.3%	City of Kaukauna (WI)
17	Wisconsin RapidsWood County	8.1	46.4	65.4%	Consolidated Water Power Co
18	Big FallsRusk County	7.7	27.3	40.5%	Northern States Power Co - Minnesota
19	Du BayPortage County	7.2	36.5	57.8%	Consolidated Water Power Co
20	Port Edwards MillWood County	6.7	37.3	63.5%	Domtar Industries Inc
21	Caldron FallsMarinette County	6.4	10.9	19.5%	Wisconsin Public Service Corp
22	Combined LocksOutagamie County	6.2	42.6	78.4%	City of Kaukauna (WI)
23	Cedar Falls (WI)Dunn County	6.0	30.9	58.9%	Northern States Power Co - Minnesota
24	High Falls (WI)Marinette County	5.6	15.6	25.5%	Wisconsin Public Service Corp
25	MenomonieDunn County	5.4	22.7	48.0%	Northern States Power Co - Minnesota
26	WausauMarathon County	5.4	24.5	51.7%	Wisconsin Public Service Corp
27	BironWood County	5.3	29.6	58.3%	Consolidated Water Power Co
28	WhitingPortage County	5.1	16.1	36.0%	Consolidated Water Power Co
29	Stevens PointPortage County	4.8	25.9	61.5%	Consolidated Water Power Co
30	Kaukauna City HydroOutagamie County	4.8	31.3	74.4%	City of Kaukauna (WI)
31	AlexanderLincoln County	4.2	13.9	37.7%	Wisconsin Public Service Corp
32	Sandstone RapidsMarinette County	3.8	9.7	29.3%	Wisconsin Public Service Corp
33	PineFlorence County	3.6	11.1	35.2%	Wisconsin Electric Power Co
34	Ladysmith DamRusk County	3.4	9.6	32.2%	Northern States Power Co - Minnesota
35	LAC Courte Oreilles HydroelectSawyer County	3.4	7.2	24.3%	Zero6 Energy Hydro
36	Johnson FallsMarinette County	3.4	10.7	35.9%	Wisconsin Public Service Corp
37	Little ChuteOutagamie County	3.3	22.1	76.3%	City of Kaukauna (WI)
38	BruleFlorence County	3.3	12.4	26.7%	Wisconsin Electric Power Co
39	TomahawkLincoln County	2.6	10.7	47.1%	Wisconsin Public Service Corp
40	Apple RiverSt Croix County	2.4	13.2	62.9%	Northern States Power Co - Minnesota
41	Rapide CrocheOutagamie County	2.4	16.5	78.7%	City of Kaukauna (WI)
42	MerrillLincoln County	2.3	3.7	18.1%	Wisconsin Public Service Corp
43	AppletonOutagamie County	2.2	12.2	63.5%	Wisconsin Electric Power Co
44	Park MillMarinette County	2.1	4.2	22.6%	Eagle Creek Renewable Energy, LLC
45	Kimberly MillOutagamie County	2.1	13.3	72.2%	City of Kaukauna (WI)
46	Hat RapidsOneida County	1.7	6.6	44.4%	Wisconsin Public Service Corp
47	Oconto Falls LowerOconto County	1.7	6.0	34.2%	Eagle Creek Renewable Energy, LLC
48	Saxon FallsIron County	1.6	9.1	64.8%	Northern States Power Co - Minnesota
49	Flambeau Crowley Rapids ProjectPrice County	1.5	4.0	30.8%	Zero6 Energy Hydro
50	ThornappleRusk County	1.4	6.6	53.9%	Northern States Power Co - Minnesota
51	Arpin DamSawyer County	1.4	4.1	33.5%	Zero6 Energy Hydro
52	Potato RapidsMarinette County	1.3	4.2	37.1%	Wisconsin Public Service Corp
53	Clam River DamBurnett County	1.2	4.8	45.6%	Zero6 Energy Hydro
54	Flambeau Lower ProjectPrice County	1.2	3.0	28.7%	Zero6 Energy Hydro
55	TregoWashburn County	1.2	5.1	49.0%	Northern States Power Co - Minnesota
56	Oconto Falls UpperOconto County	1.1	6.0	62.2%	Eagle Creek Renewable Energy, LLC
57	Domtar Paper Company RothschildMarathon County	1.1	0.5	5.4%	Domtar Paper Company Rothschild
58	White River (WI)Ashland County	1.0	2.7	31.2%	Northern States Power Co - Minnesota
59	Danbury DamBurnett County	1.0	2.3	26.7%	Zero6 Energy Hydro
60	StilesOconto County	1.0	5.3	60.2%	Oconto Electric Cooperative
61	Rhinelander MillOneida County	1.0	5.8	3.1%	Ahlstrom-Munksjo
62	BarronBarron County	0.1	0.4	43.6%	City of Barron - (WI)
63	ArgyleLafayette County	0.1	0.2	1.0%	City of Argyle - (WI)

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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