PanelCensus

Solar installations in Wisconsin

17,251 recorded installations — prices, growth by year, county breakdown and the installers doing the work.

Dataset updated . Refreshed from LBNL's Tracking the Sun public releases.

Installations
17,251
Total capacity
356.8 MW
Median price
$3.52/W
pre-incentive
Third-party owned
0%
lease / PPA

Most active

Top installers in Wisconsin

#InstallerInstalls in WI
1Everlight Solar Construction2,616
2Arch Electric1,141
3Full Spectrum Solar908
4Olson Solar Energy873
5All Energy Solar607
6Sun Badger Solar577
7North Wind Renewable Energy550
8Midwest Solar Power460
9Eland Electric457
10Eagle Point Solar455
11Sunvest Solar437
12Ethos Green Power346
13Appleton Solar299
14Drews Solar276
15Next Energy245

Wisconsin installer directory →

Growth

Installations by year

2005
42$8.45/W
2006
85$7.96/W
2007
112$8.92/W
2008
172$8.92/W
2009
272$8.64/W
2010
132$7.50/W
2011
242$6.54/W
2012
236$5.58/W
2013
206$4.62/W
2014
359$4.10/W
2015
493$3.48/W
2016
626$3.30/W
2017
734$2.90/W
2018
1,032$2.74/W
2019
1,397$3.19/W
2020
2,165$3.42/W
2021
2,541$3.53/W
2022
3,217$3.38/W
2023
3,006$3.85/W
2024
89

Bars: recorded installs · right column: median $/W that year.

By county

Solar by county in Wisconsin

CountyInstallsCapacityMedian $/W
Dane County4945.8 MW$5.04/W
La Crosse County19319.0 MW$3.25/W
Milwaukee County1172.0 MW$6.13/W
Waukesha County101825 kW$5.48/W
Eau Claire County9612.2 MW$3.31/W
Vernon County8838.0 MW$3.40/W
Rock County82670 kW$5.04/W
Portage County80509 kW$7.97/W
Bayfield County795.1 MW$7.38/W
St. Croix County751.0 MW$3.35/W
Ashland County7015.8 MW$3.14/W
Sauk County64507 kW$5.54/W
Brown County56635 kW$5.65/W
Walworth County56899 kW$7.34/W
Sawyer County50334 kW$4.08/W
Marathon County45360 kW$5.41/W
Outagamie County45399 kW$5.50/W
Monroe County4445.0 MW$3.34/W
Iowa County43293 kW$5.05/W
Dodge County36240 kW$2.44/W
Pierce County35215 kW$4.95/W
Racine County35443 kW$6.32/W
Dunn County34355 kW$3.26/W
Jefferson County34287 kW$5.48/W
Waupaca County34217 kW$7.93/W
Wood County34265 kW$3.47/W
Door County33333 kW$4.37/W
Washington County31644 kW$5.61/W
Columbia County3015.5 MW$3.66/W
Chippewa County28298 kW$7.56/W
Sheboygan County28368 kW$5.50/W
Green County27347 kW$5.05/W
Polk County27242 kW$7.58/W
Ozaukee County26233 kW$4.75/W
Trempealeau County23276 kW$2.73/W
Fond du Lac County22196 kW$4.34/W
Grant County21218 kW$3.76/W
Winnebago County20177 kW$7.04/W
Crawford County19128 kW$5.66/W
Kenosha County19162 kW$4.56/W
Clark County189.6 MW$4.33/W
Lincoln County18141 kW$3.81/W
Pepin County18172 kW$3.00/W
Oconto County1775 kW$7.25/W
Vilas County1784 kW$8.37/W
Manitowoc County16103 kW$6.43/W
Richland County16115 kW$5.60/W
Calumet County14108 kW$6.94/W
Forest County13174 kW$4.20/W
Marinette County1351 kW$7.22/W
Oneida County1357 kW$7.09/W
Waushara County1382 kW$4.16/W
Buffalo County12365 kW$2.72/W
Lafayette County1175 kW$4.08/W
Washburn County10101 kW$3.35/W

Counties derived from installation ZIP codes (Census ZCTA crosswalk) — approximate at boundaries. Counties with fewer than 50 recorded installs are shown but not indexed.

Frequently asked questions

How many solar installations are there in Wisconsin?

LBNL's Tracking the Sun dataset records 17,251 residential and small-commercial solar installations in Wisconsin, totalling 356.8 MW of capacity. (Coverage depends on the state's reporting programs, so actual totals are higher.)

How much does solar cost per watt in Wisconsin?

The median installed price across priced systems in Wisconsin is $3.52/W pre-incentive. Year-by-year medians are shown on this page.

Who are the biggest solar installers in Wisconsin?

Everlight Solar Construction has the most recorded installations in Wisconsin (2,616), followed by Arch Electric (1,141).