Residential Sizing Calculator
See real numbers before you talk to anyone
Enter your average monthly electric bill and we’ll estimate a system size, panel count, and base price -- a real planning number, not a generic range. Turn it into a full proposal whenever you’re ready.

Working out your estimate…
This is a preliminary planning estimate only, generated from your stated bill and an assumed utility rate -- not a quote. It excludes site-specific adders like main panel upgrades, trenching, ground mount structures, battery storage and structural work. Pricing varies by state. Final pricing requires an engineering review, roof-fit verification, and utility approval. Actual system size, production, and pricing may vary.
Financing available in California
- GoodLeap— Third-party ownership, so the provider claims the federal business credit.
- LightReach— Third-party ownership with no upfront cost and maintenance included.
- Concert Loan— Ownership financing -- you own the system once it is paid off.
- Propel Pre-Paid— Pre-paid third-party ownership, settled up front rather than monthly.
- Aven— Ownership financing secured against home equity.
Subject to credit approval. Final terms come from the lending partner.