Savings calculator
How much will solar save you?
Move the slider to your average monthly electricity bill to see an instant estimate.
₹4,000
Recommended system
5 kWp
Approx. installation cost
₹3,00,000
Estimated subsidy
₹78,000
Your net cost
₹2,22,000
Monthly savings
₹4,000
Yearly savings
₹48,000
Payback period
4.6 years
25-year savings
₹12,00,000
Assumptions
- Average tariff of ₹7 per unit.
- Each kWp generates about 120 units a month in Chennai (~4 units/day).
- Installed cost of about ₹60,000/kWp up to 10 kWp and ₹50,000/kWp above.
- Subsidy follows PM Surya Ghar for homes: ₹30,000/kW for the first 2 kW, ₹18,000 for the 3rd kW, capped at ₹78,000. Businesses get no subsidy.
- These are estimates only. Actual figures depend on roof, shading, tariff slab and equipment.