A clear, no-pressure guide to getting solar quotes and comparing them like a pro. We're independent — GreenCalcs doesn't sell your information or generate leads. Use this page to arm yourself before you talk to any installer.
SCReviewed by Sarah Chen, Energy AnalystIndependent · we never sell your data
In shortEstimate your numbers first, get three quotes, verify each installer, and compare on price-per-watt and 25-year output — not just the headline price. Always confirm who claims the 30% tax credit. Start with our free Payback Calculator so you walk in informed.
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Five steps
The smart way to get quotes
1. Estimate your numbers first
Before talking to any installer, run your own figures so you can spot an unrealistic quote. Use the Payback Calculator and Tax Credit Calculator to know roughly what your system should cost, save and pay back. Walking in informed is your best protection.
2. Get at least three quotes
Solar pricing varies widely, so collect quotes from at least three licensed, reputable installers. Don't accept the first offer or a high-pressure 'today only' price. Comparing three quotes reveals the fair market rate in your area and exposes outliers — both suspiciously high and too-good-to-be-true low.
3. Verify each installer
Check licensing, insurance, years in business, and independent reviews. A long, solid track record matters because your workmanship warranty is only good if the company is still around. Read our installer red flags guide for the warning signs of a bad actor.
4. Compare quotes on equal terms
Make sure each quote lists system size (kW), panel and inverter brands and warranties, the production estimate (kWh/year), the all-in price, the price per watt, and the financing terms. Compare price per watt and 25-year output, not just the headline number. Beware quotes that hide fees in financing.
5. Confirm ownership and incentives
Establish whether each offer is a cash purchase, a loan, or a lease/PPA — and who claims the 30% tax credit. Owning (cash or loan) lets you claim the credit and capture the savings; a lease/PPA company keeps them. See our lease vs buy vs loan guide before deciding.
What a good quote includes
A trustworthy quote is detailed and transparent. Make sure each one spells out:
System size in kW and the number and wattage of panels.
Equipment — panel and inverter brands, models and warranties.
Estimated production in kWh per year, so you can compare output, not just price.
All-in price and price per watt — the best apples-to-apples comparison.
Incentives — how the 30% federal credit and any state/utility rebates apply, and who claims them.
Financing terms — cash, loan (APR and any dealer fee), or lease/PPA (and its annual escalator).
Warranties — product, performance, workmanship and inverter coverage.
If a quote is vague on any of these — especially price per watt, production, or who gets the tax credit — ask for clarification before signing anything.
A note on our independence
Many ‘free quote’ sites exist to collect and sell your contact information to installers. GreenCalcs is not one of them. We don't run a lead-generation form, we don't ask for your email or phone number, and we never sell your data. Our goal is to help you make an informed decision with free tools and honest guides — see our methodology and privacy policy.
Estimate before you ask
Know your expected cost, savings and payback before any installer quotes you — free and private.