PanelCensus

Solar installations in Wisconsin

17,434 recorded installations — prices, growth by year, county breakdown and the installers doing the work.

Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.

Installations
17,434
Total capacity
1.4 GW
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
134$7.50/W
2011
243$6.54/W
2012
236$5.58/W
2013
207$4.62/W
2014
364$4.10/W
2015
497$3.48/W
2016
630$3.30/W
2017
759$2.90/W
2018
1,043$2.74/W
2019
1,412$3.19/W
2020
2,174$3.42/W
2021
2,567$3.53/W
2022
3,227$3.38/W
2023
3,028$3.85/W
2024
108
2025
23
2026
5

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

By county

Solar by county in Wisconsin

CountyInstallsCapacityMedian $/W
Dane County50679.0 MW$5.04/W
La Crosse County19319.0 MW$3.25/W
Milwaukee County12210.0 MW$6.13/W
Waukesha County1036.6 MW$5.48/W
Eau Claire County9915.6 MW$3.31/W
Vernon County9442.8 MW$3.40/W
Rock County88222.4 MW$5.04/W
Portage County80509 kW$7.97/W
Bayfield County795.1 MW$7.38/W
St. Croix County763.9 MW$3.35/W
Ashland County7015.8 MW$3.14/W
Sauk County64507 kW$5.54/W
Walworth County588.5 MW$7.34/W
Brown County56635 kW$5.65/W
Sawyer County50334 kW$4.08/W
Marathon County462.4 MW$5.41/W
Monroe County4649.1 MW$3.34/W
Outagamie County45399 kW$5.50/W
Iowa County44293 kW$5.05/W
Dunn County394.9 MW$3.26/W
Dodge County3864.5 MW$2.44/W
Jefferson County38100.1 MW$5.48/W
Racine County3812.2 MW$6.32/W
Pierce County372.5 MW$4.95/W
Waupaca County34217 kW$7.93/W
Wood County34265 kW$3.47/W
Door County33333 kW$4.37/W
Sheboygan County337.7 MW$5.50/W
Washington County336.1 MW$5.61/W
Chippewa County3211.7 MW$7.56/W
Columbia County3130.3 MW$3.66/W
Grant County31132.7 MW$3.76/W
Polk County294.2 MW$7.58/W
Green County27347 kW$5.05/W
Ozaukee County278.8 MW$4.75/W
Fond du Lac County2513.4 MW$4.34/W
Trempealeau County247.1 MW$2.73/W
Kenosha County2212.2 MW$4.49/W
Winnebago County20177 kW$7.04/W
Crawford County19128 kW$5.66/W
Clark County189.6 MW$4.33/W
Lincoln County18141 kW$3.81/W
Manitowoc County18103 kW$6.43/W
Pepin County18172 kW$3.00/W
Oconto County1775 kW$7.25/W
Richland County1765.2 MW$5.60/W
Vilas County1784 kW$8.37/W
Calumet County14108 kW$6.94/W
Oneida County149.5 MW$7.09/W
Waushara County1482 kW$4.16/W
Buffalo County134.1 MW$2.72/W
Forest County13174 kW$4.20/W
Juneau County1314.9 MW$3.56/W
Marinette County1351 kW$7.22/W
Adams County1121.7 MW$3.21/W
Barron County117.2 MW$3.82/W
Lafayette County1175 kW$4.08/W
Washburn County112.5 MW$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?

PanelCensus records 17,434 solar installations in Wisconsin, totalling 1.4 GW of capacity — compiled from LBNL's Tracking the Sun, city permit records, state programs and USGS/EIA utility-scale data. (Coverage depends on what the state publishes, 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).