Solar calculators & tools
Every tool runs in your browser, works without collecting any contact details, and shows every assumption it uses. If we ever connect you with installers, it happens after you’ve seen your numbers — and only if you choose.
Solar price calculator
FlagshipThe full journey: ZIP → usage → site → equipment → battery → financing → incentives → price, savings, payback. Anonymous, assumptions visible.
System size estimator
QuickFrom your annual kWh to a recommended kW range, panel count and production.
Quote analyzer
PopularNormalize one quote to $/W and benchmark it against your state — with red flags and explanations.
Quote comparison
PopularStack 2–3 quotes side by side: $/W, equipment, production, warranty, financing.
Financing calculator
MoneyCash vs loan vs lease vs PPA — dealer fees, interest, total cost, and why financed ≠ cash.
Battery calculator
StorageBackup runtime + the honest solar-only vs solar+battery economics.
Incentive finder
MoneyStatus-aware federal, state and utility incentives for every state.
How the numbers are produced
All calculations run through one shared, unit-tested engine with a version number (2026.08.1).
Inputs are your inputs; state data comes from EIA, NREL and marketplace reports; incentive status is maintained separately and
expires visibly. Details: methodology.