Skip to content
Press Equals

Solar Panel Calculator

Estimate the solar system size, number of panels, cost and payback period to cover your electricity use, from your bill and local sun hours.

Result

Savings assume each solar kWh offsets one you would have bought. Net-metering rules and rate increases change the real payback.

Panels

21

System size
8.4kW
Yearly production
11,038kWh
Installed cost
$25,200.00
Cost after incentives
$25,200.00
Bill savings per year
$1,836.00
Pays for itself in
13.7years