Count your units.
Type the units from your last electricity bill. We’ll show what they carry, what a rooftop could make, and what waiting costs, from sourced figures only.
Count the units on your last bill.
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of CO2 a month at today’s grid average (675 g a unit).
a month from 1 kW of panels in Pune, about 87% of the bill.
saved a month on Mahavitaran’s tariff; 1.6 years to pay back after the subsidy.
Grid average: CEA CO2 Baseline Database v22.0, FY2025-26, 675 g of CO2 a unit. Bill savings: Mahavitaran’s 2026-27 tariff for a single-phase home (MERC), tariff charges only; solar output for Pune (PVWatts v8); PM Surya Ghar subsidy and MNRE benchmark cost. Bill savings are worked out for Maharashtra only so far; other states will follow as we source their tariffs. See the full working.
A year of waiting cost the Pune flat about ₹12,812.
That is the saving from 1 kW of panels in our worked example, and the system pays for itself in 1.6 years. The PM Surya Ghar subsidy closes on 31 March 2027.
150 units a month on Mahavitaran’s 2026-27 slabs, with the fixed charge.
About 130.5 units a month from the panels (PVWatts v8, Pune).
MNRE benchmark ₹50,000 for 1 kW, less ₹30,000 from PM Surya Ghar.
Worked example from our explainer: a Pune flat on Mahavitaran’s 2026-27 tariff, 1 kW of panels (PVWatts v8), PM Surya Ghar subsidy, MNRE benchmark cost. Read the full working in What rooftop solar actually saves on a Maharashtra electricity bill.
Three things you can do this month.
65.86 lakh homes have rooftop solar under PM Surya Ghar. Maharashtra and Gujarat lead; see where your state stands.
See your statePM Surya Ghar pays up to ₹78,000 towards a home system until 31 March 2027. Applications go through the national portal.
Open the PM Surya Ghar portalWhat changed in India’s units, and what it means for your bill.
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