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2021 Top California Solar Contractors

This is the 2021 list of Top Solar Contractors completing work in California. The kilowatts listed as being installed in the state reflect only kilowatts installed in California 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 California could come from installations in all markets (residential, commercial, utility) but only within California 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.

California RankCompanykW Installed In CaliforniaPrimary MarketPrimary ServiceTotal kW installed in U.S. in 2020Overall Rank
1Blattner Company733,060.00UtilityEPC1,358,060.002
2Baker Electric475,759.57UtilityEPC536,917.8113
3Cupertino Electric369,176.00UtilityEPC497,606.0015
4Rosendin Electric342,200.00UtilityEPC640,700.0012
5SOLV Energy260,800.00UtilityEPC1,708,900.001
6M Bar C Construction100,984.02C&IInstallation Subcontractor101,637.8440
7RP Construction Services (RPCS)87,400.00UtilityInstallation Subcontractor894,268.0010
8Signal Energy68,500.00UtilityEPC342,500.0022
9MBL-Energy46,728.53C&IInstallation Subcontractor46,728.5363
10Granite Industrial43,660.00UtilityInstallation Subcontractor490,629.0017
11Collins Electrical39,728.13C&IEPC39,728.1373
12Teichert Solar36,762.90C&IInstallation Subcontractor36,762.9076
13Freedom Forever35,739.02ResidentialRooftop Contractor92,041.7645
14Trinity Power33,828.64C&IEPC33,828.6481
15Baja Construction27,628.76C&IInstallation Subcontractor33,080.5682
16Bright Planet Solar26,764.24ResidentialEPC42,079.9868
17Sunstall25,195.04UtilityInstallation Subcontractor63,960.6856
18Cenergy Power24,420.96C&IEPC37,550.7775
19Duke Energy Sustainable Solutions24,051.32C&IEPC331,730.0023
20iBuild Solar23,170.35C&IInstallation Subcontractor50,140.2160
21ForeFront Power22,678.67C&IDeveloper41,760.8170
22Energy Service Partners21,439.90ResidentialRooftop Contractor22,170.9994
23Alternative Energy Development20,000.00UtilityInstallation Subcontractor482,000.0018
24Borrego19,962.38UtilityEPC255,896.3126
25Elite Electric17,976.88C&IInstallation Subcontractor17,976.88106
26Semper Solaris17,820.21ResidentialRooftop Contractor17,820.21107
27Helix Electric15,806.00C&IEPC20,966.0098
28Pickett Solar15,000.35C&IEPC15,000.35112
29New Era Electric14,181.21C&IElectrical Subcontractor14,181.21115
30Solar Optimum14,146.28C&IDeveloper14,146.28116
31Standard Solar13,422.37C&IDeveloper85,183.6547
32Baker Electric Home Energy12,032.43ResidentialRooftop Contractor12,032.43123
33AUI Partners10,500.00C&IEPC232,210.0028
34Newport Power10,190.92C&IEPC10,190.92134
35Sunline Energy9,720.27ResidentialRooftop Contractor9,720.27136
36V3 Electric9,581.71ResidentialRooftop Contractor9,581.71137
37SolarMax Technology9,390.35ResidentialRooftop Contractor9,390.35140
38Renova Energy8,213.73ResidentialRooftop Contractor8,213.73149
39Stronghold Engineering7,631.98C&IEPC7,631.98156
40M.B. Herzog Electric6,780.00C&IElectrical Subcontractor6,780.00169
41Solar Technologies6,526.84C&IEPC6,526.84176
42Shorebreak Energy Developers6,019.74C&IDeveloper6,019.74183
43Stellar Solar5,886.85ResidentialRooftop Contractor5,886.85186
44SunPower by Precis4,611.59ResidentialRooftop Contractor4,611.59201
45Greenskies Clean Focus4,607.42C&IDeveloper28,771.7683
46GRID Alternatives4,059.75ResidentialRooftop Contractor6,209.67180
47Vibe Solar3,792.59ResidentialRooftop Contractor4,359.79204
48Treepublic3,735.80C&IEPC3,735.80214
49Titan Solar Power3,711.28ResidentialRooftop Contractor132,816.6935
50Scudder Solar Energy Systems3,424.84C&IEPC3,424.84222
51Momentum Solar3,415.62ResidentialRooftop Contractor94,682.2544
52Sun Light & Power3,410.28C&IEPC3,410.28223
53HES Solar2,974.99C&IEPC2,974.99230
54PowerFlex2,908.25C&IDeveloper59,290.4757
55Solarponics2,901.19ResidentialRooftop Contractor2,901.19233
56Simply Solar2,833.71ResidentialRooftop Contractor2,833.71238
57Cosmic Solar2,677.33ResidentialRooftop Contractor2,677.33242
58SouthWest Sun Solar2,671.24ResidentialDeveloper2,671.24243
59Forme Solar Electric2,588.09ResidentialRooftop Contractor2,588.09247
60SunPeak2,516.00C&IEPC13,616.00119
61Sun Nerds2,437.08ResidentialSales Partner3,894.86211
62Stockmans Energy2,192.24C&IElectrical Subcontractor2,192.24256
63American Solar Power2,096.54C&IElectrical Subcontractor2,096.54260
64Palomar Solar & Roofing2,084.08ResidentialRooftop Contractor2,084.08261
65Sprig Electric2,074.94C&IEPC2,074.94263
66Core Development Group2,068.00C&IDeveloper10,845.00127
67Clean Solar1,939.29ResidentialRooftop Contractor1,939.29270
68Allterra Solar1,841.87ResidentialRooftop Contractor1,841.87275
69New Day Solar1,747.64ResidentialRooftop Contractor1,747.64278
70North State Solar Energy1,696.03C&IEPC1,696.03282
71Fuzion Energy1,644.14ResidentialRooftop Contractor1,644.14287
72Magic Sun Solar1,629.71ResidentialRooftop Contractor1,629.71288
73Namaste Solar1,369.63C&IEPC12,364.13120
74Westcoast Solar Energy1,356.16C&IRooftop Contractor1,356.16307
75Canopy Energy1,338.96ResidentialDeveloper1,676.86284
76Highlight Solar1,275.76ResidentialRooftop Contractor1,275.76312
77Zenernet1,200.96ResidentialSales Partner2,515.61248
78CitiGreen1,178.76C&IEPC1,178.76316
79Sigora Solar1,162.46ResidentialRooftop Contractor18,417.14104
80Clayco Electric1,087.48ResidentialRooftop Contractor1,328.99309
81Solar Watt Solutions1,052.70ResidentialRooftop Contractor1,052.70327
82SunRenu Solar996.00C&IEPC2,913.50232
83California Home Solar958.34ResidentialInstallation Subcontractor958.34337
84Pingo Solar913.54ResidentialEPC913.54341
85Green Water and Power913.00C&IEPC913.00342
86SunWork Renewable Energy Projects758.74ResidentialRooftop Contractor758.74354
87Solar Source Inc.752.99ResidentialRooftop Contractor752.99355
88California Solar751.98ResidentialRooftop Contractor751.98356
89Renu Energy Solutions604.00ResidentialRooftop Contractor5,239.81191
90Solaris Energy601.83C&IDeveloper5,429.22188
91Silverline Home Remodeling546.17ResidentialRooftop Contractor709.76360
92Save a Lot Solar541.69ResidentialRooftop Contractor541.69377
93Elevation428.09ResidentialRooftop Contractor22,244.4293
94Earth Electric394.91ResidentialRooftop Contractor394.91398
95SEI Professional Services313.00UtilityEPC110,615.0039
96Alternative Power Solutions238.03ResidentialRooftop Contractor238.03412
97Black & Veatch210.00UtilityEPC948,670.009
98BriteStreet182.90ResidentialRooftop Contractor3,388.92224
99ReVamp Energy155.60C&IDeveloper155.60416
100Trinity Solar154.21ResidentialRooftop Contractor87,186.9446
101YouVee Solar137.35ResidentialRooftop Contractor137.35418
102O3 Energy99.80C&IDeveloper12,260.01121
103Melink Solar74.88C&IEPC15,123.81111
104Kayo Energy17.08ResidentialRooftop Contractor5,948.18184

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