How to Use the Residential Solar Quote Comparison Prompt to Compare Installers Fairly
Compare home solar quotes side by side as the homeowner's advocate: price per watt, each installer's production claim checked against your own PVWatts estimate, equipment and warranty differences, the hidden dealer fee inside solar loans, incentives that may no longer apply, and the questions to ask before you sign.
Solar quotes are hard to compare because every installer presents them differently. One quote shows a lower price, another shows higher production, and a third leads with a monthly loan payment. Some subtract incentives that may not apply to you. The Residential Solar Quote Comparison Planner: Price per Watt, Production Estimate Check, Panel and Inverter Specs, Warranty and Loan Dealer Fees, Incentive Reality Check, and Installer Questions prompt puts every quote on the same basis, checks each production claim against your own estimate, and shows what the financing really costs.
What the prompt produces
- A side by side comparison with system size, equipment, cash price, and price per watt.
- A production check that compares each installer's claim to your independent estimate and flags claims more than ten percent higher.
- Offset and value based on your usage and rate, with a rough simple payback clearly labeled as rough.
- An equipment and warranty comparison covering panels, inverters, production, workmanship, and roof penetrations.
- A loan reality check that finds the implied dealer fee.
- An incentive reality check that separates confirmed incentives from claims.
- Roof questions about reroofing first and removing panels later.
- Installer questions and a decision summary.
How to fill the inputs
Quotes lists each installer's system size, panel model and count, inverter type, cash price, and claimed annual production.
UtilityDetails gives your annual usage, rate per kWh, and the net metering or export rule pasted from your utility.
RoofAndSite covers roof orientation, tilt, shade, and roof age.
IndependentEstimate is your own production estimate for each design. A free tool like NREL PVWatts lets you enter the system size, tilt, and orientation and get an annual estimate.
FinancingOffers lists loan amounts, rates, terms, and any lease or PPA terms.
IncentiveNotes records what each quote claims and what you have confirmed.
Reading the example output
The example compares two quotes. The first costs three dollars per watt and claims production only slightly above the homeowner's PVWatts estimate. The second costs less per watt but claims nearly twelve percent more production than the independent estimate, which the prompt flags and turns into a question about shade data and modeling.
The loan check is where the second quote changes most. The loan amount is about six thousand dollars higher than the cash price, an implied dealer fee of about twenty two percent of the loan, which raises the financed price per watt above the first quote's cash price.
The incentive check catches a federal tax credit subtracted in the first quote. The homeowner's notes say that credit ended for expenditures after 2025, so the prompt marks it to verify with a tax preparer and compares quotes at full price until then.
Tips for better results
- Run PVWatts yourself with your real roof tilt and orientation.
- Ask every installer for the cash price, even if you plan to finance.
- Get warranty terms in writing.
- Check your roof's remaining life before you sign.
Mistakes to avoid
- Do not compare quotes by monthly payment alone.
- Do not count an incentive until it is confirmed for your situation.
- Do not accept a production claim without the modeling behind it.
Who it is for
Homeowners comparing solar quotes, energy advisors who help clients, and anyone who wants a second opinion before signing a solar contract.
A practical routine
Collect at least two quotes, run your own estimate for each design, fill the inputs, and send each installer the questions from the output before you decide.
Related PromptDig links
Compare your quotes with the Residential Solar Quote Comparison Planner: Price per Watt, Production Estimate Check, Panel and Inverter Specs, Warranty and Loan Dealer Fees, Incentive Reality Check, and Installer Questions prompt. For more home and money planning prompts, Browse more prompts. If you have a home project checklist that saved you money, Share a prompt.