How Much Will You Save With Solar?
Adjust the sliders below — your savings update in real time. Takes 30 seconds.
✨ Delhi residents qualify for an extra ₹30,000 state subsidy
5 kW
₹6,502
2.2 yrs
YOUR BILL — BEFORE VS AFTER
Current Bill
₹5,000
After Solar
₹0
YOUR IMPACT OVER 25 YEARS
1,231+
trees planted
7 tonnes
CO₂ erased
₹19,50,469
lifetime savings
*Based on 25-year system life. A 78,019/year savings.
Solar Calculator — Frequently Asked Questions
How to calculate solar panel size for my home?
Divide your monthly electricity consumption (in units) by the average solar yield per kW in your region. In North India, 1 kW generates about 117 units/month. So if you consume 600 units/month, you need approximately a 5 kW system. Our calculator above does this automatically based on your bill and city.
What is the cost of a solar system in India 2026?
A 5 kW system costs approximately ₹2,48,000 before subsidies. After PM Surya Ghar and state subsidies, you pay around ₹1,70,000.
What is the Generation-Based Incentive (GBI) for solar?
Delhi offers ₹2 per unit generated for 5 years under the GBI scheme. For a typical system, this adds ₹1,500-2,000 monthly savings.
What subsidies are available for rooftop solar in India?
PM Surya Ghar scheme offers up to ₹78,000 for residential systems. Many states like Delhi, Noida, Ghaziabad provide additional state subsidies up to ₹30,000. Some states also offer Generation-Based Incentives (GBI).
How long does rooftop solar take to pay for itself?
With your current ₹5,000 monthly bill, payback period is 2.2 years. After that, you get free electricity for 20+ years.