The California Solar Initiative is part of the Go Solar California campaign, which was launched in January 2007 under Governor Schwarzenegger. It provides incentives for home solar power systems in the state of California.
Using comprehensive data from the California Solar Initiative, Sunrun has ranked the top California solar cities and counties in order to make information on California's solar growth more accessible and easier to understand.
We've ranked the top California solar cities by the number of solar homes added in 2010 through May, the number of solar homes added from 2007 to 2010, and by solar share, or the percentage of homes in that city with home solar power systems. Sunrun has also done the same for the top California solar counties.
| Rank | California solar cities | California counties | Solar homes added in 2010 through May | Solar homes added from 2007-2010 | Solar share: % of homes with solar |
| 1 | San Diego | San Diego | 364 | 1,717 | 0.42% |
| 2 | San Jose | Santa Clara | 280 | 1,282 | 0.43% |
| 3 | Bakersfield | Kern | 239 | 769 | 0.93% |
| 4 | Fresno | Fresno | 217 | 865 | 0.61% |
| 5 | San Francisco | San Francisco | 204 | 1,472 | 0.57% |
| 6 | Santa Rosa | Sonoma | 181 | 672 | 1.37% |
| 7 | Clovis | Fresno | 123 | 581 | 2.55% |
| 8 | Rocklin | Amador | 118 | 260 | 2.15% |
| 9 | Lincoln | Placer | 91 | 277 | 7.42% |
| 10 | Escondido | San Diego | 90 | 329 | 0.74% |
| 11 | Santa Barbara | Santa Barbara | 78 | 311 | 1.01% |
| 12 | Morgan Hill | Santa Clara | 75 | 182 | 1.63% |
| 13 | El Dorado Hills | El Dorado | 70 | 209 | 3.48% |
| 14 | Oakland | Alameda | 68 | 412 | 0.31% |
| 15 | Santa Cruz | Santa Cruz | 64 | 386 | 2.12% |
| 16 | Poway | San Diego | 63 | 288 | 1.80% |
| 17 | Pleasanton | Alameda | 62 | 253 | 1.19% |
| 18 | Livermore | Alameda | 61 | 281 | 1.15% |
| 19 | Granite Bay | Placer | 54 | 157 | 2.43% |
| 20 | Sunnyvale | Santa Clara | 53 | 272 | 0.62% |
| 21 | El Cajon | San Diego | 53 | 248 | 0.78% |
| 22 | Carlsbad | San Diego | 53 | 226 | 0.87% |
| 23 | Saratoga | San Mateo | 52 | 219 | 2.20% |
| 24 | sebastopol | Sonoma | 49 | 254 | 9.80% |
| 25 | Temecula | Riverside | 48 | 146 | 0.76% |
| 26 | Los Altos | San Mateo | 47 | 300 | 3.25% |
| 27 | Santa Ana | Orange | 47 | 149 | 0.13% |
| 28 | Berkeley | Alameda | 46 | 376 | 1.10% |
| 29 | Madera | Fresno | 46 | 158 | 1.10% |
| 30 | Los Gatos | Santa Clara | 45 | 252 | 2.64% |
| 31 | Huntington Beach | Orange | 45 | 223 | 0.35% |
| 32 | Sonoma | Napa | 43 | 221 | 7.26% |
| 33 | Riverside | Riverside | 43 | 121 | 0.14% |
| 34 | Long Beach | Los Angeles | 41 | 286 | 0.19% |
| 35 | Petaluma | Contra Costa | 41 | 165 | 0.91% |
| 36 | Palm Desert | Riverside | 40 | 211 | 1.54% |
| 37 | Chico | Butte | 39 | 301 | 1.51% |
| 38 | Fremont | Alameda | 39 | 226 | 0.33% |
| 39 | Walnut Creek | Contra Costa | 39 | 204 | 0.95% |
| 40 | Davis | Solano | 38 | 317 | 1.58% |
| 41 | Napa | Napa | 38 | 255 | 1.05% |
| 42 | Danville | Alameda | 38 | 192 | 1.38% |
| 43 | Murrieta | Riverside | 38 | 129 | 0.87% |
| 44 | Corona | Riverside | 37 | 169 | 0.41% |
| 45 | Vacaville | Solano | 37 | 165 | 0.56% |
| 46 | Yorba Linda | Orange | 37 | 87 | 0.44% |
| 47 | Loomis | Placer | 35 | 127 | 6.09% |
| 48 | Fallbrook | San Diego | 34 | 156 | 1.61% |
| 49 | Mission Viejo | Orange | 34 | 136 | 0.44% |
| 50 | Lafayette | Contra Costa | 33 | 157 | 1.97% |
| 51 | Encinitas | San Diego | 33 | 145 | 0.75% |
| 52 | Cupertino | Santa Clara | 32 | 180 | 1.07% |
| 53 | Rancho Mirage | Riverside | 32 | 118 | 2.67% |
| 54 | yucaipa | San Bernardino | 32 | 89 | 0.65% |
| 55 | Auburn | Placer | 31 | 193 | 4.65% |
| 56 | Visalia | Tulare | 31 | 176 | 0.58% |
| 57 | Irvine | Orange | 31 | 128 | 0.27% |
| 58 | Gilroy | Santa Clara | 30 | 105 | 0.76% |
| 59 | Santa Clarita | Los Angeles | 30 | 91 | 0.18% |
| 60 | Ramona | San Diego | 29 | 182 | 3.48% |
| 61 | Redwood City | San Mateo | 29 | 155 | 0.62% |
| 62 | Palm Springs | Imperial | 29 | 144 | 1.01% |
| 63 | Orange | Orange | 29 | 131 | 0.31% |
| 64 | Brentwood | Contra Costa | 29 | 118 | 1.52% |
| 65 | Grass Valley | Nevada | 27 | 176 | 4.83% |
| 66 | Simi Valley | Ventura | 27 | 108 | 0.29% |
| 67 | Concord | Contra Costa | 27 | 106 | 0.26% |
| 68 | Valley Center | San Diego | 27 | 101 | 4.14% |
| 69 | Fullerton | Orange | 27 | 86 | 0.20% |
| 70 | CHULA VISTA | San Diego | 26 | 127 | 0.22% |
| 71 | San Ramon | Alameda | 26 | 123 | 0.83% |
| 72 | Camarillo | Ventura | 26 | 117 | 0.61% |
| 73 | Alamo | Contra Costa | 26 | 102 | 1.96% |
| 74 | Lakeside | San Diego | 26 | 86 | 1.32% |
| 75 | Alpine | San Diego | 26 | 76 | 1.73% |
| 76 | OCEANSIDE | San Diego | 25 | 151 | 0.28% |
| 77 | Vista | San Diego | 25 | 146 | 0.49% |
| 78 | WINDSOR | Sonoma | 25 | 87 | 1.15% |
| 79 | San Rafael | Marin | 24 | 171 | 0.92% |
| 80 | Redlands | Riverside | 24 | 124 | 0.58% |
| 81 | Hemet | Riverside | 24 | 94 | 0.48% |
| 82 | San Clemente | Orange | 24 | 83 | 0.50% |
| 83 | Tracy | San Joaquin | 23 | 117 | 0.62% |
| 84 | Carmel | Monterey | 23 | 104 | #N/A |
| 85 | Shingle Springs | El Dorado | 23 | 91 | 10.33% |
| 86 | Stockton | San Joaquin | 22 | 133 | 0.16% |
| 87 | Yuba City | Sutter | 22 | 89 | 0.73% |
| 88 | Salinas | Monterey | 22 | 87 | 0.17% |
| 89 | Menlo Park | San Mateo | 21 | 143 | 1.39% |
| 90 | Arroyo Grande | San Luis Obispo | 21 | 130 | 2.46% |
| 91 | La Jolla | San Diego | 21 | 114 | #N/A |
| 92 | Castro Valley | Alameda | 21 | 108 | 0.57% |
| 93 | Oakdale | Stanislaus | 21 | 102 | 1.97% |
| 94 | Claremont | Los Angeles | 21 | 101 | 0.89% |
| 95 | San Marcos | San Diego | 21 | 88 | 0.48% |
| 96 | Lakewood | Los Angeles | 21 | 58 | 0.22% |
| 97 | Placerville | El Dorado | 20 | 102 | 3.18% |
| 98 | La Mesa | San Diego | 19 | 139 | 0.76% |
| 99 | Rancho Palos Verdes | Los Angeles | 19 | 101 | 0.74% |
| 100 | Fairfield | Solano | 19 | 78 | 0.24% |
| 101 | Rancho Cucamonga | Riverside | 19 | 77 | 0.18% |
| 102 | Spring Valley | San Diego | 19 | 71 | 0.80% |
| 103 | Lancaster | Los Angeles | 19 | 61 | 0.15% |
| 104 | Newcastle | Placer | 19 | 60 | #N/A |
| 105 | Alta Loma | San Bernardino | 19 | 59 | #N/A |
| 106 | San Luis Obispo | San Luis Obispo | 18 | 153 | 1.04% |
| 107 | Thousand Oaks | Los Angeles | 18 | 111 | 0.28% |
| 108 | Richmond | Alameda | 18 | 105 | 0.32% |
| 109 | San Carlos | San Mateo | 18 | 102 | 1.10% |
| 110 | Aptos | Santa Cruz | 18 | 85 | 2.71% |
| 111 | Atascadero | San Luis Obispo | 18 | 75 | 0.85% |
| 112 | Moreno Valley | Riverside | 18 | 65 | 0.14% |
| 113 | Laguna Beach | Orange | 18 | 64 | 0.81% |
| 114 | Kingsburg | Fresno | 18 | 45 | 1.47% |
| 115 | Santee | San Diego | 17 | 65 | 0.37% |
| 116 | Chino Hills | Los Angeles | 17 | 48 | 0.22% |
| 117 | Manhattan Beach | Los Angeles | 16 | 86 | 0.76% |
| 118 | woodside | San Mateo | 16 | 80 | 4.48% |
| 119 | Hayward | Alameda | 16 | 70 | 0.15% |
| 120 | Trabuco Canyon | Orange | 16 | 57 | 0.53% |
| 121 | Tustin | Orange | 16 | 55 | 0.24% |
| 122 | Dublin | Alameda | 16 | 49 | 0.49% |
| 123 | Lake Forest | Orange | 16 | 47 | 0.24% |
| 124 | Placentia | Orange | 16 | 42 | 0.27% |
| 125 | Orinda | Contra Costa | 15 | 122 | 2.08% |
| 126 | Paso Robles | San Luis Obispo | 15 | 119 | 1.47% |
| 127 | Campbell | Santa Clara | 15 | 94 | 0.74% |
| 128 | Ridgecrest | Kern | 15 | 70 | 0.84% |
| 129 | Sanger | Fresno | 15 | 70 | 1.11% |
| 130 | Fountain Valley | Orange | 15 | 66 | 0.36% |
| 131 | Martinez | Contra Costa | 15 | 63 | 0.53% |
| 132 | Atwater | Merced | 15 | 51 | 0.66% |
| 133 | Buena Park | Orange | 15 | 43 | 0.16% |
| 134 | Mountain View | Santa Clara | 14 | 238 | 1.01% |
| 135 | Mill Valley | Marin | 14 | 146 | 3.22% |
| 136 | Los Altos Hills | Santa Clara | 14 | 108 | 4.10% |
| 137 | Watsonville | Monterey | 14 | 102 | 0.69% |
| 138 | San Mateo | San Mateo | 14 | 99 | 0.32% |
| 139 | Costa Mesa | Orange | 14 | 77 | 0.21% |
| 140 | Healdsburg | Sonoma | 14 | 76 | 2.13% |
| 141 | Coronado | San Diego | 14 | 71 | 0.88% |
| 142 | Antioch | Contra Costa | 14 | 69 | 0.23% |
| 143 | Nevada City | Nevada | 14 | 68 | 6.80% |
| 144 | Altadena | Los Angeles | 14 | 67 | 0.47% |
| 145 | Soquel | Santa Cruz | 14 | 67 | 3.96% |
| 146 | Pleasant Hill | Contra Costa | 14 | 61 | 0.56% |
| 147 | San Bernardino | San Bernardino | 14 | 61 | 0.10% |
| 148 | Laguna Hills | Orange | 14 | 58 | 0.56% |
| 149 | Los Alamitos | Orange | 14 | 57 | 1.48% |
| 150 | Calabasas | Los Angeles | 14 | 55 | 0.82% |
| 151 | Jamul | San Diego | 14 | 54 | 2.74% |
| 152 | Lemoore | Kings | 14 | 51 | 0.78% |
| 153 | Glendora | Los Angeles | 14 | 49 | 0.30% |
| 154 | Santa Ynez | San Luis Obispo | 14 | 46 | 3.01% |
| 155 | Cameron Park | El Dorado | 14 | 45 | 0.93% |
| 156 | Santa Monica | Los Angeles | 13 | 152 | 0.54% |
| 157 | Ojai | Los Angeles | 13 | 92 | 3.51% |
| 158 | Redding | Shasta | 13 | 70 | 0.26% |
| 159 | Arcadia | Los Angeles | 13 | 69 | 0.39% |
| 160 | Whittier | Los Angeles | 13 | 69 | 0.25% |
| 161 | Newbury Park | Ventura | 13 | 67 | #N/A |
| 162 | Cypress | Orange | 13 | 65 | 0.42% |
| 163 | Canyon Country | Los Angeles | 13 | 57 | #N/A |
| 164 | Palmdale | Los Angeles | 13 | 56 | 0.14% |
| 165 | Fontana | San Bernardino | 13 | 53 | 0.12% |
| 166 | Newport Beach | Orange | 13 | 50 | 0.21% |
| 167 | Canyon Lake | Riverside | 13 | 35 | 1.06% |
| 168 | Byron | Contra Costa | 13 | 27 | 8.84% |
| 169 | Ventura | Ventura | 12 | 117 | 0.35% |
| 170 | Woodland | Fresno | 12 | 103 | 0.63% |
| 171 | Apple Valley | San Bernardino | 12 | 102 | 0.56% |
| 172 | Malibu | Los Angeles | 12 | 83 | 1.98% |
| 173 | Oroville | Butte | 12 | 71 | 1.64% |
| 174 | Hanford | Fresno | 12 | 69 | 0.50% |
| 175 | Garden Grove | Orange | 12 | 62 | 0.11% |
| 176 | Hillsborough | San Mateo | 12 | 62 | 1.72% |
| 177 | Vallejo | Napa | 12 | 54 | 0.14% |
| 178 | Highland | San Bernardino | 12 | 53 | 0.36% |
| 179 | Goleta | Santa Barbara | 12 | 52 | 0.28% |
| 180 | Valencia | Los Angeles | 12 | 52 | #N/A |
| 181 | Burlingame | San Mateo | 12 | 50 | 0.53% |
| 182 | Redondo Beach | Los Angeles | 12 | 49 | 0.23% |
| 183 | Norco | Riverside | 12 | 32 | #N/A |
| 184 | Novato | Marin | 11 | 131 | 0.83% |
| 185 | Agoura Hills | Los Angeles | 11 | 61 | 0.89% |
| 186 | Upland | San Bernardino | 11 | 60 | 0.26% |
| 187 | Chino | San Bernardino | 11 | 59 | 0.26% |
| 188 | Torrance | Los Angeles | 11 | 54 | 0.12% |
| 189 | El Cerrito | Alameda | 11 | 53 | 0.69% |
| 190 | Manteca | San Joaquin | 11 | 52 | 0.32% |
| 191 | Scotts Valley | Santa Cruz | 11 | 49 | 1.29% |
| 192 | CATHEDRAL CITY | Riverside | 11 | 48 | 0.34% |
| 193 | Cloverdale | Sonoma | 11 | 45 | 1.98% |
| 194 | Santa Maria | Santa Barbara | 11 | 39 | 0.15% |
| 195 | Selma | Fresno | 11 | 31 | 0.48% |
| 196 | Cotati | Sonoma | 11 | 28 | 1.30% |
| 197 | Wheatland | Yuba | 11 | 25 | 3.30% |
| 198 | Acton | Los Angeles | 11 | 21 | 2.64% |
| 199 | Laguna Niguel | Orange | 10 | 59 | 0.29% |
| 200 | Moraga | Contra Costa | 10 | 55 | 1.01% |
| 201 | Rohnert Park | Sonoma | 10 | 55 | 0.39% |
| 202 | West Sacramento | Sacramento | 10 | 53 | 0.50% |
| 203 | South Pasadena | Los Angeles | 10 | 47 | 0.58% |
| 204 | Seal Beach | Orange | 10 | 45 | 0.56% |
| 205 | Westminster | Orange | 10 | 42 | 0.14% |
| 206 | Bonita | San Diego | 10 | 41 | 0.99% |
| 207 | Half Moon Bay | San Mateo | 10 | 39 | 0.99% |
| 208 | Penryn | Placer | 10 | 38 | 11.18% |
| 209 | Walnut | Los Angeles | 10 | 38 | 0.38% |
| 210 | La Verne | Los Angeles | 10 | 31 | 0.29% |
| 211 | Beaumont | Riverside | 10 | 27 | 0.71% |
| 212 | Kerman | Fresno | 10 | 20 | 0.70% |
*Based on data provided by the California Solar Initiative from 2007 through May 2010. Does not include data from municipal utilities, which are not part of the California Solar Initiative. Includes cities with 10 or more home solar installations since 2007. Solar share calculated by total home solar installations from 2007 through May 2010 as a percentage of total households using Census data.
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