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2024 Top Illinois Solar Contractors

This is the 2024 list of Top Solar Contractors completing work in Illinois. The kilowatts listed as being installed in the state reflect only kilowatts installed in Illinois 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 Illinois could come from installations in all markets (residential, commercial, community solar, utility) but only within Illinois 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.

Illinois RankCompanykW Installed In IllinoisPrimary MarketPrimary ServiceTotal kW installed in U.S. in 2023Overall Rank
1Quanta Services267,825.28UtilityEPC2,233,632.404
2SDI96,760.00UtilityInstallation Subcontractor857,160.0016
3Bowman68,908.00UtilityEPC74,289.0061
4Recon Corp.66,712.00UtilityEPC66,712.0064
5Primoris Renewable Energy47,750.00UtilityEPC3,410,790.002
6Babcock & Wilcox Solar Energy32,100.00Community SolarEPC172,100.0041
7Casey Electric26,657.00UtilityElectrical Subcontractor38,893.0088
8Ameresco26,300.00C&IDeveloper92,370.7052
9New Energy Equity18,600.00Community SolarDeveloper41,992.4283
10J. Ranck Electric18,511.80UtilityEPC72,378.8062
11Arch13,691.30Res & ComInstaller29,567.76101
12Melink Solar12,733.00C&IEPC38,157.3089
13Freedom Forever11,351.59ResidentialInstaller368,990.6627
14Nelnet Renewable Energy11,158.01Res & ComEPC22,273.09114
15Radiance Solar10,539.00C&IEPC79,572.1756
16StraightUp Solar9,162.97Res & ComEPC10,562.03158
17Alta Energy Services9,000.00UtilityInstaller46,700.0081
18Continental Energy Solutions8,973.85C&IEPC9,802.37165
19eEquals7,819.02ResidentialInstaller7,819.02180
20Sole Contracting6,040.32UtilityInstallation Subcontractor91,741.9253
21Sun Energy Solar LLC6,037.20UtilityElectrical Subcontractor39,336.2086
22Day & Zimmermann6,000.00Community SolarEPC52,340.0074
23Sun Solar4,959.93ResidentialInstaller13,536.70141
24iBuild Solar4,382.74C&IInstallation Subcontractor40,932.2085
25Iconic Energy4,239.16Res & ComInstaller4,239.16224
26Tron Solar4,235.74ResidentialInstaller5,587.74209
27Fresh Coast Solar4,023.90Res & ComInstaller4,068.15229
28Solar One3,565.61C&IDeveloper10,780.79155
29New Energy Structures Company (NESCO)3,100.50Community SolarEPC31,230.5097
30TMI Energy Solutions3,026.10C&IEPC5,231.15211
31Nexamp2,991.30Community SolarDeveloper225,408.0036
32Interconnection Systems2,990.00C&IEPC22,210.00115
33Windfree Solar2,922.48Res & ComEPC3,005.32241
34360 Electric Heating/Cooling2,425.92ResidentialInstaller2,425.92263
35Arevon Energy2,236.00UtilityDeveloper391,826.0025
36Stateline Solar2,145.96ResidentialInstaller2,218.95275
37Eagle Point Solar2,066.11Res & ComEPC9,955.82162
38Verde Solutions1,742.75C&IEPC2,472.99260
39RxSun1,635.48ResidentialSales Partner1,727.65298
40Tick Tock Energy1,407.40Res & ComInstaller1,422.50310
41Pivot Energy1,340.44Community SolarDeveloper19,711.60120
42Renewable Energy Evolution1,171.00C&IDeveloper1,171.00326
43Standard Solar912.60C&IDeveloper29,497.29103
44ForeFront Power783.00C&IDeveloper49,165.3778
45PSG Energy Group535.00C&IEPC2,335.00270
46Unity Solar Group363.73ResidentialInstaller363.73380
47Sonne Energy Solutions335.02ResidentialInstaller335.02382
48Veregy294.00C&IEPC3,559.32236
49Sunshine Saves119.90ResidentialSales Partner2,189.36277
50SunPeak75.00C&IEPC5,224.00213
51SunRenu Solar65.00C&IEPC4,273.00223
52ECG Solar31.85ResidentialInstaller2,736.65249
53Morton Solar27.20ResidentialInstaller644.29362
54Midwest Solar Installers18.57ResidentialSales Partner1,056.46333

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