A rooftop solar plant saves money in three ways: it replaces the units you buy from the grid, it exports surplus units that are credited to your bill, and the government pays a large part of the cost upfront through subsidy.
Net metering is the key. Suppose your plant generates 120 units in a month and your home uses 100. The extra 20 are exported and credited. Next month, if the plant generates 70 and you use 100, you import only 30 — and the earlier credit offsets that. Your bill is on the net units, not the gross consumption.
Subsidy reduces the investment. Residential systems of 3 kW and above get ₹78,000 under PM Surya Ghar, credited directly to your bank account after commissioning.
EMI versus bill. If you finance the balance, the monthly EMI on a typical home system is often lower than the electricity bill it replaces — and the EMI ends in a few years while the panels keep producing for 25 or more.
The best way to know your exact number is a free site visit. Our engineer sizes the plant to your consumption, not to a brochure.
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