Free tools for homeowners & businesses
Is solar worth it for your home?
Free calculators, readiness tools, and plain-English guides to help you make a confident solar decision — whether you own a home or a business. No signup, no sales pitch.
No account required · Updated with 2026 EIA rates · All 50 states
Tools for Homeowners
Three free tools to help you evaluate solar at any stage of the decision.
Most precise
Solar ROI Calculator
Enter your system size, cost, and electricity rate for an exact payback period and 20-year savings projection. Best when you have a quote in hand.
Open the calculator →Two inputs, instant results
Quick Savings Estimate
Just your state and monthly electricity bill. Get a ballpark savings estimate and estimated payback period in under a minute — no quote needed.
Get my estimate →Before you talk to anyone
Solar Readiness Checklist
Score your home across six key areas — roof, sun exposure, bills, future plans, HOA, and electrical panel — to find out if your home is a good solar candidate.
Check my home →Latest Guides
Plain-English answers for homeowners and business owners evaluating solar.
Solar by State
Incentives, rates, and honest ROI estimates for your state.
California
Rate:
$0.34–0.36 / kWh
Sun:
5.5–6.5 peak hrs / day
Payback:
8–11 years
Strong ROI despite NEM 3.0 changes — high rates drive savings even with lower export credits.
Read the California guide →Texas
Rate:
$0.13–0.15 / kWh
Sun:
5.0–6.5 peak hrs / day
Payback:
9–13 years
No statewide net metering, but strong sun and a deregulated market give you real provider options.
Read the Texas guide →Florida
Rate:
$0.13–0.15 / kWh
Sun:
5.0–5.5 peak hrs / day
Payback:
9–12 years
Full retail net metering now, but a 2027 policy change to 60% retail makes timing matter.
Read the Florida guide →New York
Rate:
$0.22–0.25 / kWh
Sun:
4.0–4.5 peak hrs / day
Payback:
8–11 years
A 25% state tax credit and high electricity rates offset modest sun hours and push ROI well above average.
Read the New York guide →Built for the Decision, Not the Sale
Solar ROI Check has no installers to recommend and nothing to sell. Every tool and article is built to help you evaluate solar on your own terms.
State-accurate data
Every calculation uses your state's actual average electricity rate from the EIA and local peak sun hours from NREL — not national averages that can mislead.
20-year savings projection
Payback period is just the start. See your full projected savings over two decades — the number that reflects the real value of a solar investment.
No account, no signup
Every tool works immediately. No email address, no password, no form to submit before you can see your results. Your data stays in your browser.