Solar Rooftop Cost, System Payback Period & Estimated Monthly Savings
Surya Energy Financial Engineering• 6 min read• Updated: February 2026
QUICK ANSWER / KEY TAKEAWAY
A 3 kW rooftop solar system costs approximately ₹1,80,000 before subsidy. With ₹78,000 PM Surya Ghar Central Financial Assistance, net investment is ₹1,02,000. It generates ~360 units monthly, saving ₹3,000/month with full payback in ~2.8 years.