Tool 01 · Quotes
Quote scorecard — $/W, not vibes
Enter up to three gross cash quotes and array sizes. Compare relative $/W, not installer quality or a verified market benchmark.
Quote 1 A
Quote 2 B
Quote 3 C
Relative price comparison only — no verified local market benchmark is applied. Compare the same scope: gross cash prices before incentives, matching equipment and installation work. Exclude batteries and roof work unless included consistently in every quote. A lower $/W is not a quality score or an installer recommendation.
Enter at least two quotes to compare.
Use this free solar quote comparison tool to put up to three installer bids onto the same cost-per-watt basis. Enter each cash price and system size to see a clear comparison before sales projections or financing muddy the math.
No email required. Instant browser-based planning math with clear assumptions.
How to read the scorecard
Price per watt is total price divided by system size — the number that survives every rebate, loan and "free panel" claim. The cheapest monthly payment is not the cheapest quote once you look at $/W and loan costs.
- Total price means the cash price on the contract — before any tax credit, utility incentive or financing math.
- Size is the panel-array nameplate capacity in kW-DC. Ask for DC capacity on every quote; do not mix inverter AC capacity with panel DC capacity.
- Larger systems often score cheaper per watt — that is normal and not a red flag on its own.
- A price difference can reflect equipment, warranty, roof complexity or included work. Ask for itemized quotes and compare scope before deciding. See the $/W guide.
What this tool estimates
Use this free solar quote comparison tool to put up to three installer bids onto the same cost-per-watt basis. Enter each cash price and system size to see a clear comparison before sales projections or financing muddy the math.
No email required. Results are calculated in your browser; use them as a planning estimate, not a guaranteed quote or savings forecast.
How the math works
Cost per watt equals gross cash price divided by panel-array watts DC. Ranking and differences compare only the entered bids, not an external market benchmark. Compare the same scope: remove batteries and roof work unless consistently included in all bids. Price is not workmanship, equipment quality or financing advice.
Key variables that change your result
Cash price
Use the contract cash price before tax credits, rebates, loan fees or monthly-payment framing.
System size
Use panel-array kW-DC on every quote. Do not mix inverter AC capacity with panel DC capacity.
Equipment and scope
A lower dollars-per-watt figure can still omit roof work, electrical upgrades, batteries or service-panel changes.
Questions homeowners ask
How do I compare solar quotes fairly?
What is included in a solar quote?
Is the cheapest solar quote always the best?
State context matters
Find your state solar guide
Costs, incentives, export rules and payback inputs vary by state. Open your state guide before treating any calculator result as a buying decision.