Solar System Calculator

  • Home
  • Solar Calculator
Enter your average monthly electricity usage (units = kWh)
Your utility rate — used for savings & payback estimates
Affects area per kW
Usable area (shadow-free). Slab needs ~8 sq.m per kW; metal ~6 sq.m per kW (defaults)
Default 55,000 ₹/kW (you can change to current market price)
Enter total subsidy amount (₹) you will receive
Losses due to inefficiencies, shading etc. (default 10%)
Notes: This is an estimate. 1 kW PV ~ 120 kWh / month (approx. 4 kWh/day) is used here as baseline; adjust loss and cost settings if needed.