How many solar farms are planned in Wisconsin?

Developers have proposed 95 solar farms in Wisconsin with 13 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned solar farm in Wisconsin?

Vista Sands Solar in Portage County, Wisconsin is the largest planned, at 1,182 MW. It is expected to come online in 2028.

Who is developing solar farms in Wisconsin?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Planned solar farms in Wisconsin

Developers have proposed 95 solar farms in Wisconsin with 13 GW of capacity, in the grid operators' interconnection queues.

Planned95

See operating solar farms in Wisconsin

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned solar farms in Wisconsin are expected online in 2026 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned solar farms by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned solar farms in Wisconsin

Planned, by capacity

#	Solar farm	County	Expected online	Capacity
1	Vista Sands Solar	Portage County	2028	1,182 MW
2	Stone Lake - Gardner Park 345.0kV	Rusk County	2030	417 MW
3	Rocky Run to Werner West 345 kV	Portage County	2028	399 MW
4	Rocky Run to Werner West 345 kV line	Portage County	2028	399 MW
5	Rocky Run to Werner West 345 kV line	Portage County	2028	399 MW
6	Koshkonong Solar Energy Center LLC	Dane County	2026	300 MW
7	High Noon Solar Energy LLC	Columbia County	2027	300 MW
8	Rockdale 345 kV Substation	Dane County	2025	300 MW
9	N. Madison 345 kV Substation	Dane County	2025	300 MW
10	Clintonville	Waupaca County	2026	300 MW

Planned solar farms expected online soonest in Wisconsin

In the next 18 months, soonest first

#	Solar farm	County	Expected online	Capacity
1	Koshkonong Solar Energy Center LLC	Dane County	2026	300 MW
2	STONE LAKE	Sawyer County	2026	244 MW
3	Big Rapids Solar WI, LLC	Marathon County	2026	6 MW
4	Campbellsport Solar WI, LLC	Fond Du Lac County	2026	6 MW
5	Honey Creek Solar WI, LLC	Walworth County	2026	6 MW
6	Germantown - Rockfield Rd Solar WI, LLC	Washington County	2026	6 MW
7	Lime Kiln Solar, LLC	Washington County	2026	6 MW
8	Little Rose Solar WI, LLC	Marathon County	2026	6 MW
9	Root River Solar WI, LLC	Racine County	2026	6 MW
10	Tichigan Solar WI, LLC	Racine County	2026	6 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks solar farms

Operating solar farms come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about solar farms in Wisconsin

How many solar farms are planned in Wisconsin?: Developers have proposed 95 solar farms in Wisconsin with 13 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned solar farm in Wisconsin?: Vista Sands Solar in Portage County, Wisconsin is the largest planned, at 1,182 MW. It is expected to come online in 2028.
Who is developing solar farms in Wisconsin?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.