Solar Calculator
Enter your electricity bill and location to get an estimate of system size, cost, savings, and payback period. Based on real data from 653+ verified installers.
Rs 500 - Rs 15,000
Rs 3 - Rs 15 per unit
Common questions about this calculator
How accurate is this solar calculator?
Our calculator uses real marketplace data from verified installers across India. Estimates are based on current pricing, local solar irradiance, and applicable government subsidies. Actual costs may vary by 10-15% based on specific site conditions.
What system size do I need for my home?
System size depends on your electricity consumption. A typical Indian household with a monthly bill of Rs 1,500-2,000 needs a 3-4 kW system. Our calculator recommends the optimal size based on your bill amount.
How is the payback period calculated?
Payback period = net system cost (after subsidy) divided by annual savings. We account for PM Surya Ghar central subsidies and state-specific top-ups where available.
Does the calculator include subsidy?
Yes. The calculator applies the PM Surya Ghar central subsidy (Rs 30,000/kW for first 2 kW, Rs 18,000/kW for 2-3 kW) and state subsidies where data is available.