Solar Payback & ROI Calculator
How are solar incentives applied to the cost?
The calculator multiplies system cost by one minus the incentive percentage, so a 30 percent incentive on a $20,000 system yields a $14,000 net cost. The 30 percent default reflects the federal ITC per IRS Form 5695. Incentive amounts change and may stack with state or utility rebates, so confirm the current rate before relying on the result.
Run the numbers for your project
Use the Solar Payback & ROI Calculator to get an exact answer for your inputs.
Open the calculatorRelated questions
Pro launch updates
Get notified when Pro launches, plus a monthly code-change digest. Email only — no account required.