Input Index

Rooftop Area (m²)
Scaling Factor
Average Weighted Area-capacity (m²/MW)
Unit Investment Cost ($/W)
Debt ratio (%)
Plant Performance Factor (%)
Value of Grants ($)
Interest Rate (%)
Period of Loan (years)
Fixed O&M ($/kW-yr)
O&M Escalation Rate (%)
Power Sales Price - to end users or the grid ($/kWh)
PV OUT (kWh/kWp)
PV System Output Degradation Rate (%)
Cost Savings (power price)-for own use ($/kWh)
Annual Escalation: value of power sales price - to end users or the grid (%/yr)
Annual Escalation: value of cost savings (power price) - for own use (%/yr)
Power Proportion for Sale (%)
Value-Added Tax (%)
Rate of Inflation (%)
Corporate Income Tax (%)
Discount Rate (nominal) (%)

Intermediate Index

  • Rooftop Area Available for Solar PV System (m²)
  • Plant Gross Capacity (kW)
  • Total Project Costs ($)
  • Plant Owner Equity (Proportion) (%)
  • Plant Owner Equity (Amount) ($)
  • Total Financed ($)

Default Index

  • Plant Lifetime
  • Development Period Duration
  • Salvage Value
  • 25 years
  • 0.5 year
  • 0

Final Index

  • Discounted Net Cash Flow - NCF ($)
  • Internal Rate of Return (IRR) (%)
  • Return on Investment - ROI (%)
  • Payback Period - PBP
  • Discounted PBP
  • Benefit to Cost (BC) Ratio
  • Levelized Cost of Electricity - LCOE ($)