California solar knowledge center
Independent explanations of installer selection, costs, incentives, utility rules, maintenance, and the questions to ask before signing a solar contract.
Research and practical guidance
Updated July 25, 2026
Start with the property and the electric bill A useful solar proposal begins with twelve months of electricity use, roof condition, shade, rate plan, and the…
Read Solar 101: A California Homeowner’s Starting GuideUpdated July 25, 2026
Separate price from assumptions Compare cash price, financed price, dealer fees, equipment, roof work, storage, permitting, and ongoing service separately. A low monthly payment can hide…
Read Solar Costs and Savings ExplainedUpdated July 25, 2026
Verify identity and authority Match the proposal’s legal business name and contractor licence to official records. Confirm the salesperson is authorized to represent the contracting entity.…
Read How to Choose a Solar InstallerUpdated July 25, 2026
Check eligibility at the source Incentive rules, funding, deadlines, ownership requirements, and tax treatment can change. Confirm current terms with the responsible government agency, utility, program…
Read California Solar Incentives and Primary Sources