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Cost to Install Solar Panels: Quote Worksheet

Compare the system, roof work, electrical scope and contract terms in written solar quotes.

Put your quotes side by side

A price difference helps only after the work matches.

Quote A
Costs outside the quote & your reserve

This is money you set aside. It is not a contractor charge or a recommended percentage.

Enter a quoted price

Quote B
Costs outside the quote & your reserve

This is money you set aside. It is not a contractor charge or a recommended percentage.

Enter a quoted price

Quote C (optional)
Costs outside the quote & your reserve

This is money you set aside. It is not a contractor charge or a recommended percentage.

Enter a quoted price

Two quotes or three; the third is optional. Type the price of each written quote, then mark what each one includes. A cheaper quote often leaves work out: mark that work Extra with its price and the totals add it back, so you compare the same job.

Before you sign: six checks
  • Get three written quotes, and do not pick the lowest on price alone.
  • Hire a licensed, insured contractor. Your state or local building department says which licence the work needs; ask for current insurance certificates.
  • Get a written contract with the contractor’s name, address and licence number, start and finish dates, the payment schedule and who gets the permits.
  • Do not pay it all up front: tie payments to finished stages, never pay in cash or by wire transfer, and make the last payment when the work is done. Some states limit the down payment.
  • If you sign at home, you have three business days to cancel, and the contract should say so in writing.
  • Be wary of a contractor who knocks on your door, pushes you to decide now, or asks you to get the permits yourself.

From the Federal Trade Commission’s advice: How to avoid a home improvement scam.

Check what each quote includes

Leave anything unclear as “Ask.” Choose “Extra” to add a separately priced item to that quote’s budget. Do not also put it in the general left-out costs below.

Materials

Equipment and system scope

Name panels, inverters, mounting, monitoring and any storage; compare the same system boundaries.

Labor

Roof and attachment work

Identify roof repairs, attachment responsibility, penetrations and restoration. Ask who owns any roof-warranty questions.

Electrical and interconnection

Separate panel upgrades, wiring, disconnects, metering, utility applications and permission to operate.

Protection, permits and terms

Price and finance terms

Keep cash price, finance charges, payment schedule, lease or purchase terms and cancellation terms distinct.

Incentives and assumptions

Record an incentive only from your own confirmed program or tax advice, with eligibility and expiry. Do not subtract an unconfirmed incentive from the base quote.

Warranty and service

Identify labor, equipment, monitoring, removal/reinstallation and service responsibility over the contract.

Nothing is sent to a contractor. Saving keeps these entries in this browser; downloading makes a text file.

Before asking for a price

Record the proposed equipment schedule, system size, roof areas, ownership or financing arrangement and utility interconnection scope. Keep production assumptions separate from guaranteed contract terms.

Reading the totals

Compare the total system price, not the monthly payment: a low financed payment can hide a higher total. Savings, incentives and tax credits are not worked out here.

The budget adds the quoted price, separately priced Extra items, other costs left out and any tax not already included. Your chosen reserve is added to that subtotal. Treat every “Ask” row as work that is not yet confirmed as included. Get the answer in writing before comparing totals.

My plans

Plans saved in this browser. Open a tool, then choose its load option to restore your measurements.

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