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2024 Top Wisconsin Solar Contractors

This is the 2024 list of Top Solar Contractors completing work in Wisconsin. The kilowatts listed as being installed in the state reflect only kilowatts installed in Wisconsin in 2023. Companies listed on this state list could be headquartered in other states, participate in any market (residential, commercial, community solar, utility) and provide any installation service (EPC, developer, installer, installation subcontractor, electrical subcontractor, sales partner).

The listed kilowatts installed by each company in Wisconsin could come from installations in all markets (residential, commercial, community solar, utility) but only within Wisconsin state lines.

The companies below are a segmented portion of the overall 2024 Top Solar Contractors List, organized by kilowatts (DC) installed in 2023.

For more information on Solar Power World’s annual Top Solar Contractors List and additional sublists, visit our Top Solar Contractors home page.

Wisconsin RankCompanykW Installed In WisconsinPrimary MarketPrimary ServiceTotal kW installed in U.S. in 2023Overall Rank
1Burns & McDonnell468,000.00UtilityEPC646,000.0018
2Westphal & Co.277,072.00UtilityElectrical Subcontractor277,072.0031
3SOLV Energy271,000.00UtilityEPC2,513,700.003
4Quanta Services259,601.00UtilityEPC2,233,632.404
5J&B Solar100,000.00UtilityInstallation Subcontractor480,978.0024
6SDI30,000.00UtilityInstallation Subcontractor857,160.0016
7J. Ranck Electric25,800.00UtilityEPC72,378.8062
8Knobelsdorff21,744.00Community SolarEPC55,565.0071
9New Energy Structures Company (NESCO)17,237.00Community SolarEPC31,230.5097
10Arch15,776.56Res & ComInstaller29,567.76101
11Interconnection Systems7,200.00C&IEPC22,210.00115
12SunPeak4,642.00C&IEPC5,224.00213
13All Energy Solar2,844.42Res & ComInstaller19,143.74124
14Ethos Green Power Cooperative1,262.16ResidentialInstaller1,262.16319
15Eagle Point Solar1,240.28Res & ComEPC9,955.82162
16Home Team Energy1,227.16ResidentialInstaller1,227.16323
17Freedom Forever1,219.87ResidentialInstaller368,990.6627
18Faith Technologies Inc. (FTI)1,179.38C&IEPC2,267.78271
19Tron Solar1,179.14ResidentialInstaller5,587.74209
20Current Electric922.74ResidentialInstaller922.74339
21Carlson Electric452.58ResidentialEPC476.10370
22Telamon Energy399.30C&IDeveloper4,391.40218
23Solar America224.80ResidentialSales Partner12,941.05144
24Energy Concepts222.79Res & ComEPC888.82344
25Baja Construction209.00C&IEPC60,760.0466
26Nelnet Renewable Energy77.37Res & ComEPC22,273.09114
27Stateline Solar72.99ResidentialInstaller2,218.95275
28Virtue Solar67.93ResidentialInstaller1,047.08334
29Windfree Solar53.37Res & ComEPC3,005.32241
30Midwest Solar Installers8.20ResidentialSales Partner1,056.46333

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