Solar savings calculator
Enter your electricity bill to estimate the system size you need, the cost after subsidy, and your savings.
≈ 286 units per month at ₹7/unit
Recommended system2.5 kWgenerates ≈ 304 units/month
- Estimated cost₹1,50,000
- PM Surya Ghar subsidy– ₹69,000
- Yearly savings₹24,000
- Payback period3.4 years
- Roof area needed~250 sq. ft.
- CO₂ avoided per year2.6 t (≈ 123 trees)
Estimated net savings over 25 years: ₹5,19,000
Get an exact quoteHow we calculate
- 1 kW of solar generates about 4 units per day in Kerala (~120 units/month).
- Average tariff of ₹7/unit for homes and ₹9/unit for businesses.
- Indicative on-grid installed cost of ₹60,000/kW for homes. Off-grid and hybrid systems cost more because of batteries.
- PM Surya Ghar subsidy applies to residential grid-connected systems only.
- CO₂ savings use an emission factor of 0.71 kg per unit of grid electricity.
These are estimates for guidance only. Actual generation depends on roof direction, shading and weather, and prices vary with components. Request a free site survey for an exact quote.