Solar Project ROI Calculator

Calculate payback period, IRR, NPV, and 25-year returns for any solar project. Just enter your system size and location.

Project Inputs

System Size (kWp)

CAPEX per kWp ($)

Typical: $600-900/kWp commercial, $800-1200 residential

Region (solar yield)

Electricity Price ($/kWh)

Your avoided electricity rate or PPA price

Advanced Settings

Annual OPEX (% of CAPEX)

Annual Degradation (%)

Discount Rate for NPV (%)

Key Metrics

3.7y

Payback Period

27.0%

IRR

$166k

25yr NPV

$386k

25yr Profit

Financial Summary

CAPEX (initial investment)$70,000

Year 1 Generation135,000 kWh

Year 1 Revenue$20,250

Annual OPEX$1,050

25-Year Total Generation3218 MWh

Avg Annual ROI22.1%

Ready to Make It Happen?

Get a detailed quote based on your ROI analysis. Frank can help refine cost estimates for your specific location.

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Disclaimer: This calculator provides estimates for illustrative purposes only. Actual project economics depend on many factors including permits, grid connection costs, site-specific shading, exact local electricity rates, tariffs, and financing terms. Contact Frank for a detailed project feasibility analysis.