Contra Costa Solar & Storage Rankings: 2025 Climate Scorecard
Unincorporated Contra Costa County ranks 1st of 20 Contra Costa communities on Solar & Storage in the 2025 Contra Costa Climate Scorecard, with a Solar & Storage score of 65.6 out of 100, followed by San Ramon (60.9) and Pittsburg (58.3). The county average is 32.6.
Which Contra Costa communities lead on Solar & Storage?
| Rank | Community | Solar & Storage score | Solar capacity (kW AC) | Storage capacity (kWh) |
|---|---|---|---|---|
| 1st | Unincorporated Contra Costa County | 65.6 | 40,683.87 | 9,007.16 |
| 2nd | San Ramon | 60.9 | 19,696.97 | 4,853.78 |
| 3rd | Pittsburg | 58.3 | 3,189.1 | 13,724.6 |
| 4th | Danville | 43.5 | 3,454.45 | 4,346.3 |
| 5th | Richmond | 37.8 | 4,053.48 | 12,839.72 |
| 6th | Clayton | 35.7 | 807.36 | 833.9 |
| 7th | Lafayette | 34.6 | 1,922.18 | 1,786.34 |
| 8th | Brentwood | 34.1 | 4,313.99 | 4,940.16 |
| 9th | Oakley | 34.0 | 2,542.85 | 3,727.8 |
| 10th | Martinez | 33.4 | 3,440.22 | 1,993.1 |
| 11th | Antioch | 29.6 | 6,154.3 | 8,048.06 |
| 12th | Moraga | 25.5 | 823.46 | 953.2 |
| 13th | Orinda | 23.8 | 1,015.77 | 953.5 |
| 14th | Hercules | 23.7 | 1,256.09 | 1,348 |
| 15th | Walnut Creek | 23.4 | 3,709.71 | 3,279.9 |
| 16th | Pinole | 21.9 | 1,074.02 | 719 |
| 17th | Concord | 21.8 | 4,570.83 | 6,471.76 |
| 18th | Pleasant Hill | 19.9 | 1,361.41 | 1,484.48 |
| 19th | El Cerrito | 15.4 | 954 | 764.24 |
| 20th | San Pablo | 8.7 | 566.47 | 589 |
The county average Solar & Storage score is 32.6 out of 100. The measures are shown as reported; the section below explains how each becomes part of the score.
How is Solar scored?
Solar uses two measures, both per resident: installed solar capacity and battery storage capacity from utility interconnection records. On each, the community with the most per resident scores 100 and every other community scores in proportion to it. The Solar Topic Score is the average of the two.
| Measure | Measured as | Better when | Worth up to |
|---|---|---|---|
| Solar capacity | per resident | Higher | 100 |
| Storage capacity | per resident | Higher | 100 |
Data: US Census Bureau ACS 2024 5-Year API (2024); US Census Bureau Place-to-County Relationship File; California Distributed Generation Statistics, PG&E Rule 21 (2025).
How do the other Topics compare?
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