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2021 Top Illinois Solar Contractors

This is the 2021 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 2020. Companies listed on this state list could be headquartered in other states, participate in any market (residential, commercial, utility) and provide any installation service (EPC, developer, rooftop solar 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, utility) but only within Illinois state lines.

The companies below are a segmented portion of the overall 2021 Top Solar Contractors list, organized by kilowatts (DC) installed in 2020.

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

Illinois RankCompanykW Installed In IllinoisPrimary MarketPrimary ServiceTotal kW installed in U.S. in 2020Overall Rank
1RP Construction Services (RPCS)162,157.00UtilityInstallation Subcontractor894,268.0010
2Inovateus Solar55,103.00UtilityDeveloper101,428.0042
3MKD Electric51,270.00C&IElectrical Subcontractor51,270.0059
4Fosler Construction Co.39,955.47C&IEPC39,955.4772
5Borrego37,412.71UtilityEPC255,896.3126
6Alta Energy Services36,930.00UtilityInstallation Subcontractor82,060.0049
7Pivot Energy29,525.00C&IDeveloper36,487.9478
8SunVest Solar27,178.42C&IDeveloper49,124.1962
9New Energy Equity25,936.12C&IDeveloper65,246.8655
10Continental Energy Solutions24,464.50C&IEPC24,464.5089
11SEI Professional Services22,042.00UtilityEPC110,615.0039
12Nelnet Renewable Energy19,820.18C&IEPC21,022.0997
13Arch19,219.18ResidentialRooftop Contractor26,684.7786
14Sun Solar LLC18,012.00UtilityInstallation Subcontractor1,197,827.005
15Cenergy Power13,129.81C&IEPC37,550.7775
16ForeFront Power9,769.03C&IDeveloper41,760.8170
17Melink Solar8,608.60C&IEPC15,123.81111
18Windfree Solar8,015.16ResidentialRooftop Contractor8,015.16154
19Faith Technologies Inc. (FTI)8,004.00UtilityEPC17,081.00108
20Simpleray5,580.18C&IEPC6,092.73182
21PowerFlex5,510.19C&IDeveloper59,290.4757
22GEM Energy5,310.00C&IDeveloper9,113.00142
23Nexamp5,180.00C&IDeveloper127,509.3236
24Impact Power Solutions4,807.00C&IDeveloper34,617.9780
25Moxie Solar4,361.02ResidentialRooftop Contractor10,863.25126
26Veregy4,031.00C&IEPC13,993.82117
27POWERHOME Solar3,858.32ResidentialRooftop Contractor49,344.3761
28StraightUp Solar3,839.06ResidentialRooftop Contractor6,641.97171
29Bright Planet Solar3,712.40ResidentialEPC42,079.9868
30Freedom Forever3,526.63ResidentialRooftop Contractor92,041.7645
31EFS Energy3,514.90ResidentialRooftop Contractor3,904.51210
32Newkirk Electric Associates3,277.00UtilityEPC24,559.0088
33Dynamic Energy3,202.45C&IEPC20,573.3499
34Eagle Point Solar3,044.29ResidentialEPC6,620.42173
35Denk and Roche Builders2,900.00C&IInstallation Subcontractor2,900.00234
36Recon Corp.2,880.00UtilityEPC70,510.0052
37Sunshine Solar2,800.00C&IInstallation Subcontractor66,200.0054
38Casey Electric2,790.00UtilityElectrical Subcontractor38,558.2074
39AUI Partners2,700.00C&IEPC232,210.0028
40Sole Contracting2,613.60C&IInstallation Subcontractor45,715.2765
41Core Development Group2,484.00C&IDeveloper10,845.00127
42Harvest Solar2,427.33C&IEPC6,446.58177
43Fresh Coast Solar2,421.52ResidentialInstallation Subcontractor2,421.52251
44Sun Badger Solar2,416.28ResidentialDeveloper4,266.73205
45iBuild Solar2,408.45C&IInstallation Subcontractor50,140.2160
46Tick Tock Energy2,026.36ResidentialRooftop Contractor2,075.35262
47Tron Solar1,984.72ResidentialRooftop Contractor2,031.25266
48PurePoint Energy1,200.01C&IEPC2,856.93235
49National Solar Service1,100.67ResidentialRooftop Contractor1,388.09306
50Cantsink1,089.00UtilityInstallation Subcontractor1,184,329.006
51Solar Mounts951.00C&IInstallation Subcontractor7,904.50155
52Ailey Solar Electric863.50ResidentialRooftop Contractor895.98346
53Solgen Power784.63ResidentialSales Partner7,347.05159
54Stateline Solar768.27ResidentialDeveloper852.14350
55GenRenew713.88ResidentialRooftop Contractor3,138.16227
56LightWave Solar499.80C&IEPC9,523.28138
57MC Power Cos.485.60C&IEPC990.94334
58API Solar443.38ResidentialRooftop Contractor443.38391
59Zenernet337.16ResidentialSales Partner2,515.61248
60Sigora Solar330.34ResidentialRooftop Contractor18,417.14104
61Yellowlite317.88ResidentialRooftop Contractor2,627.64245
62VerdeSol233.98C&IEPC1,054.78325
63Simple Solar216.94ResidentialRooftop Contractor2,817.68239
64SunPeak156.00C&IEPC13,616.00119
65Solect Energy149.60C&IDeveloper18,109.79105
66Morton Solar67.26ResidentialEPC1,565.84291
67Coastal Solar Power49.50ResidentialInstallation Subcontractor909.05343
68Solar SME34.59ResidentialDeveloper960.33336
69Sun Nerds22.22ResidentialSales Partner3,894.86211
70ECG Solar14.00ResidentialRooftop Contractor1,027.87330
71Titan Solar Power4.55ResidentialRooftop Contractor132,816.6935

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