Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Solar Payback Period Calculator (with Incentives)

Find how many years it takes solar to pay for itself after the federal tax credit and rebates, based on your install cost, system production, and electricity rate.

Gross system cost (before incentives) ($)

Tax credit / percentage incentive (%)

Flat rebates and incentives ($)

Annual energy production (kWh/yr)

Electricity price ($/kWh)

Solar Energy

Net Metering Calculator

Estimate your monthly solar bill under time-of-use net metering. Enter your production, usage, peak/off-peak rates, and connection fee to see exactly what you owe or earn back.

Monthly Solar Production (kWh)

Monthly Energy Usage (kWh)

Peak Rate ($/kWh)

Off-Peak Rate ($/kWh)

Peak Hours Production (%)

Monthly Connection Fee ($)

Key differences

	Solar Payback Period Calculator (with Incentives)	Net Metering Calculator
Category	Solar Energy	Solar Energy
Inputs required	5	6
Result	Simple payback period (years)	Monthly Net Metering Credit/Cost ($)
What it does	Find how many years it takes solar to pay for itself after the federal tax credit and rebates, based on your install cost, system production, and electricity rate.	Estimate your monthly solar bill under time-of-use net metering. Enter your production, usage, peak/off-peak rates, and connection fee to see exactly what you owe or earn back.