Solar Payback & ROI
Estimate the payback period, lifetime savings, and IRR of a rooftop solar install.
Result
Net install cost
$19,200
Payback (yrs)
9.54
Year-1 savings
$1,808.06
Lifetime savings
$61,639.58
ROI
221%
IRR
10.45%
NPV
$17,449.91
关于此工具
Enter system size, install cost, utility rate, sun hours, and degradation to see years to payback, lifetime savings, NPV at a chosen discount rate, and IRR. Targets the persistent r/solar and r/homeimprovement 'is solar worth it in 2026' debate.
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