How much can you save
with solar panels?
Enter your details below for an instant personalized estimate based on real NREL solar data and local electricity rates.
$ /mo
Select your state to see your savings estimate
Estimates based on NREL PVWatts data and EIA electricity rates. Assumes 30% federal Investment Tax Credit (ITC). Actual savings vary by system size, installer pricing, and local incentives.
How We Calculate Your Savings
1
Solar Resource
We use NREL's PVWatts API data to determine the average daily solar irradiance for your state (kWh/m²/day).
2
System Sizing
Your monthly bill and electricity rate determine your energy usage. We size a system to offset that usage, adjusted for roof condition.
3
Savings & ROI
Annual production × local electricity rate = annual savings. System cost minus 30% ITC divided by annual savings = payback period.