What a solar quote actually is
A quote is a preliminary estimate based on initial information: your address, recent utility use, and photos or measurements. It should list the proposed system size (kW), an estimated annual energy production, a rough price or price range, and any assumptions the installer used. Quotes aren’t always site-verified; many change after an on-site inspection because roof condition, shading, or electrical work can affect design and cost. Check the quote date, what’s included (panels, inverters, racking, permitting), and whether it’s conditional on a site visit.
What a solar contract means for you
A contract is a legally binding document that records the final scope, price, payment schedule, installation timeline, and responsibilities. It should identify the exact equipment model and quantities, who is responsible for permits and interconnection paperwork, and how changes are handled. Contracts often reference manufacturer and installer warranties but typically don’t reproduce those warranty documents — you should ask to see them. Remember that financing or lease paperwork can be separate but related to the contract; read all documents before signing.
How to compare quotes before you get to contract
Ask for itemized, dated quotes so you can compare the same line items across bids. Key things to compare: system size in kW, estimated annual production, equipment listed (panel and inverter brands if provided), labor and permit costs, and any assumed site conditions like new roofing or tree work. Also compare timelines, who handles permits and inspections, and whether the quote includes removal of an old system or upgrades to the electrical panel. Because pricing and availability depend on location, roof, utility use, financing, and installer quality, make sure each company used the same assumptions. A site visit usually follows a quote and will produce the final contract offer.
Red flags and negotiation points in a contract
Watch for vague equipment descriptions, open-ended change orders, missing start or completion dates, and an unclear payment schedule. If the contract only references warranties without attaching them, ask for the actual warranty documents. Confirm the installer’s license and insurance, and ask who will apply for incentives or tax credits and how that affects your paperwork. Don’t sign if key responsibilities are left to verbal promises. You can request changes in writing, compare multiple contracts, and take time to review financing terms or seek outside advice if the deal is large or complex.