Wisconsin · 2 industries

Solar and battery storage projects in Wisconsin

63 utility solar and 21 battery storage projects are in development in Wisconsin, 16 of them under construction, with 123 already operating. 6 counties with 5 or more have a page of their own. Who is building each one, and who to call, is in the app.

Request access By county

84in development

0of them pre-construction

16of them under construction

123operating

48 queued1 permitted19 financed16 under construction

By industry

Wisconsin, industry by industry.

Utility solar in Wisconsin63 in development14 under construction118 operating

Battery storage in Wisconsin21 in development2 under construction5 operating

Breaking ground next

Next to start work in Wisconsin.

Up to three projects per industry in Wisconsin, closest to breaking ground first.

Utility solar

Unnamed 150 MW solar projectColumbia County
Financed · 150 MW · start est. 2027 Q1
Builder: not yet named
Unnamed 100 MW solar projectGreen County
Financed · 100 MW · start est. 2027 Q1
Builder: not yet named
Unnamed 100 MW solar projectWinnebago County
Financed · 100 MW · start est. 2027 Q1
Builder: not yet named

Battery storage

Unnamed 300 MW storage projectColumbia County
Queued · 300 MW · start est. 2026 Q4
Builder: not yet named
Unnamed 300 MW storage projectMilwaukee County
Queued · 300 MW · start est. 2027 Q1
Builder: not yet named
Unnamed 200 MW storage projectJuneau County
Queued · 200 MW · start est. 2027 Q2
Builder: not yet named

By county

Wisconsin, county by county.

Counties with 5 or more projects in development, most first. Each has a page with every project in development there.

County	Utility solar	Battery storage	In development	Under construction
Columbia County	7	2	9	1
Dane County	6	2	8	3
Portage County	6	2	8	2
Kenosha County	3	3	6	3
Jefferson County	5	—	5	2
Wood County	4	1	5	0

Fewer than 5 in development: Barron County (4), Rock County (4), St Croix County (4), Waushara County (4), Juneau County (3), Sheboygan County (3), Dunn County (2), Winnebago County (2), Adams County (1), Fond Du Lac County (1), Grant County (1), Green County (1), La Crosse County (1), Lafayette County (1), Marathon County (1), Milwaukee County (1), Oconto County (1), Outagamie County (1), Ozaukee County (1), Pepin County (1), Rusk County (1), Sawyer County (1), Trempealeau County (1), Walworth County (1), Waupaca County (1).

Questions

Wisconsin, in short.

How many construction projects are in development in Wisconsin?

84 solar and battery storage projects are in development in Wisconsin: 63 utility solar and 21 battery storage projects. 16 of them are under construction, and 123 more are already operating.

Which counties in Wisconsin have the most projects in development?

Columbia County (9), Dane County (8), Portage County (8), Kenosha County (6) and Jefferson County (5).

Where does the Wisconsin data come from?

From public records read daily for each industry (14 sources for utility solar and 11 sources for battery storage): grid interconnection queues, construction permits, county records, state siting and procurement filings, and satellite imagery. Each value links to its record.