Solar PV System Payback & ROI Calculator
Calculate simple payback period, net system cost after tax credits, and 25-year lifetime financial return.
Simple Payback Equation:
\( \text{Payback (Years)} = \frac{\text{System Cost} \times (1 - \text{Incentive \%})}{\text{Annual kWh Production} \times \text{Electricity Rate (\$/kWh)}} \)
Solar Installation Inputs
Standard Federal ITC = 30%
Net System Cost
$19,600
Simple Payback Period
7.8 Years
25-Year Net Savings
$43,400