Free tool
California solar savings calculator
Get a fast, honest ballpark for your home. Every assumption is listed below, so you can see exactly where the number comes from.
How we calculate it
This is a simplified model, not a quote. Here's what it assumes:
| Retail rate | PG&E 39¢ · SCE 35¢ · SDG&E ~45¢ · LADWP ~26¢ · Other 33¢ per kWh |
|---|---|
| Fixed charge | $24.15/mo removed first for PG&E, SCE, SDG&E (solar can't offset it) |
| Production | 1,550 kWh per kW per year |
| Installed price | $3.10/W; battery $13,500 |
| Self-use | 55% panels-only · 85% with battery |
| Export credit | ~4¢ per kWh (NEM 3.0) · LADWP near retail (net metering) |
| Rate growth | 4% per year |
| Degradation | 0.5% per year, 25 years |
| Incentives | None included (federal 25D credit ended after 2025) |
Results vary with roof direction, shading, usage timing, rate plan and equipment. Your MyPowerCo quote uses your real 12-month usage data and a roof-specific production model.
Tip: A big gap between "panels only" and "with battery" is normal under NEM 3.0. Toggle both to see it. Why batteries matter now →
Free · No pressure · No obligation
See what your roof could produce.
Send us your last electric bill. We'll design a system for your home, show you the real numbers with and without a battery, and give you a written quote you can compare against anyone else's.