- State focus
- Screen California solar payback using retail-rate pressure, sun exposure, policy context, and export-credit risk.
- Policy factor
- NEM 3.0 reduces the value of exported production, so self-consumption and battery economics matter more.
- Best use
- Compare the state-level economics before running a quote-specific calculator scenario.
- Not included
- Roof shade, county-level precompute, installer pricing, financing terms, and household usage shape.
Key drivers
- 82
- Worth-It Score
- 8-12
- payback years
- 31.8c
- sample retail rate per kWh
- NEM 3.0
- policy context
Policy note
NEM 3.0 credits exported power at lower, time-varying values than the former retail-credit structure. That can extend payback for systems that export heavily.
Source attribution and data-use notes are listed in the Solar Payback Map attribution policy.