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.
Pulls measured sun exposure from satellite imagery instead of a regional guess, and shows how many panels your roof can physically fit.
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
Solar Loan
Learn more →Homeowners who want to own their system and maximize long-term savings.
- Concert Loan— Ownership financing -- you own the system once it is paid off.
- Aven— Ownership financing secured against home equity.
Solar Lease
Learn more →Customers who want the lowest monthly payment and zero maintenance responsibility.
- GoodLeap— Third-party ownership, so the provider claims the federal business credit.
Power Purchase Agreement (PPA)
Learn more →Customers who want to pay only for the energy their system actually produces.
- LightReach— Third-party ownership with no upfront cost and maintenance included.
Prepaid Ownership
- Propel Pre-Paid— Pre-paid third-party ownership, settled up front rather than monthly.
Subject to credit approval. Final terms come from the lending partner.
Ask us about PACE (Property Assessed Clean Energy) financing, too -- it is repaid through your property tax bill rather than a separate loan or lease. Whether it is available to you depends on your specific city or county having an active program, so we will confirm what is actually open in your area rather than guess here.