A printable checklist for comparing solar proposals line by line.
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Use this checklist when you have two or three solar proposals on the table and want to compare them on the same terms. Work through each group for every company, write down the answers and mark anything that is missing, vague or only verbal. A proposal that cannot answer a question in writing is telling you something about how the project may go.
How to use it: print the page, make one copy per installer and fill in the answers from the proposal, the contract draft and your own license and complaint checks. Treat any unchecked item as a question to send back before you sign, not as a reason to assume the best.
Worked example (illustrative): two companies quote the same 8 kW system at $2.90 per watt, which is $23,200 each. Company one lists the panel and inverter models, includes permits and offers a 10-year workmanship warranty. Company two lists only brands, excludes the electrical panel upgrade and offers 2 years. The prices match, but the checklist shows the second quote may cost more once the upgrade is added and carries more risk.
Limits: the list is a screening tool, not legal or engineering advice. License rules, deposit limits and cancellation rights differ by state, so confirm them with your state licensing board and attorney general.
Contractors, Warranties & Upkeep
A practical process for vetting solar installers, from license and insurance checks to NABCEP, references, proposals, subcontractors and contract terms.
Contractors, Warranties & Upkeep
Warning signs in solar proposals and sales tactics, from fake government programs and inflated production claims to pressure deadlines, hidden fees and vague contracts.
Incentives, Permits & Financing
Which permits, inspections, electrical and fire codes, HOA rules and utility approvals apply to home solar, plus a step-by-step timeline and document list.
