Estimate solar return on investment, solar payback period, net system cost, annual savings, lifetime savings, incentive value, annual return, and total solar investment return. Use this solar ROI calculator to compare system cost against long-term electric bill savings.
Cost and savings mode:
The calculator uses system cost, incentives, monthly savings, maintenance, and system life to estimate ROI and payback.
Production mode:
The calculator multiplies monthly solar production by electric rate and export credit to estimate savings, then compares savings to system cost.
Bill offset mode:
The calculator estimates savings from your current electric bill and solar offset percentage.
System size mode:
The calculator estimates solar production from system size, sun hours, and losses, then calculates savings, payback, and ROI.
A solar ROI calculator helps estimate whether a solar system may be a good long-term investment before buying panels, comparing quotes, or planning a solar installation.
It can help compare return on investment, payback period, net system cost, incentive value, annual savings, lifetime savings, annual return, maintenance cost, and total avoided electric costs.
Your result shows estimated solar ROI, payback period, annual return, gross system cost, incentive value, net system cost, first-year savings, lifetime gross savings, lifetime net savings, maintenance cost, and estimated value of electricity savings over the system life.
Solar ROI is calculated by dividing lifetime net savings by net system cost, then multiplying by 100.
A positive ROI means the estimated lifetime savings exceed the net cost of the solar system. Higher ROI usually means better long-term financial return.
Payback shows how many years it may take to recover the system cost. ROI shows the total return over the life of the system compared with the net investment.
Yes. Incentives, credits, and rebates reduce the net system cost, which can improve ROI and shorten the payback period.
No. This is an estimate. Actual ROI can vary based on energy production, utility rates, net metering, financing, maintenance, taxes, incentives, roof conditions, equipment performance, and future electric rate changes.