Independent solar analysis — U.S.
Enter your ZIP code and electricity bill to get a personalized solar estimate — then compare qualified local installers.
Enter a 5-digit ZIP code.
Free, no email, no sales call. · Find solar installers →
Solar calculator
A quick, location-specific estimate. Every figure below is an estimate based on typical assumptions for your area — not a quote. For the full analysis, open the Solar Decision Engine.
Adjust the form to see your estimate.
Full analysis: is solar worth it? → Get quotes from local installersYour results
System size, production, savings, payback and 25-year savings for your address — with a plain-English "is solar worth it?" rating and the reason why.
Cash vs solar loan vs solar + battery, side by side. An interactive 25-year projection and a sensitivity check on electricity prices.
See qualified installers scored on a transparent match. Request quotes from three, then compare them line by line.
The platform
Personalized recommendation, cash/loan/battery, 25-year projection, sensitivity analysis.
Start → 🔎Directory of companies by state and city, with a transparent match score.
Browse → ⚖️Already have proposals? Line them up and see which one is actually best.
Compare → 💬Ask whether solar is worth it, if you need a battery, cash or finance — answers from the engine.
Ask → 📊The 2026 U.S. Solar Cost Index — price, system size and payback by state.
Explore → 🧮Savings, cost, payback, system size, battery, loan, tax credit and more.
Open →Solar by state
Local sun, electricity rates and incentives change the math a lot. Start with your state.
We're a free comparison service. Installers in the network pay us a referral fee — it never changes the price you're quoted. Full disclosure → · How we calculate →
Solar guides
National ranges, price per watt, and what drives the number.
Read → 💳Cash vs loan vs lease vs PPA — and how dealer fees work.
Read → 🎁State credits, rebates, production payments and tax exemptions.
Read → 🔋Backup vs bill savings, and how capacity is sized.
Read →Yes. The calculators, the Solar Decision Engine and installer matching are free. We're paid a referral fee by installers in the network, which never changes your quoted price.
No. We're an independent decision and comparison platform. We don't sell or install solar — we help you work out whether it makes sense and connect you with vetted local installers.
They use average local sun hours, electricity rates and typical installed pricing, plus standard engineering assumptions. They're good for planning and comparison, but your real numbers depend on your roof, shading, equipment and installer. See our methodology →
No. Quotes are free and there's no obligation. You can compare them with the quote comparison tool and walk away.
The 30% residential credit (Section 25D) applies only to systems placed in service through the end of 2025. A 2026+ residential install does not qualify. Details →