Solar panels for home in Mumbaithat pay for themselves in 4–5 years.

A 3 kW rooftop system typically lands between ₹1,80,000 and ₹2,10,000 before subsidy, depending on roof type, structure height and cable runs. After the ₹78,000 PM Surya Ghar subsidy, most homeowners are investing ₹1,10,000 to ₹1,35,000 net.

High-rise terraces cost more than independent houses — elevated structures, longer DC runs and crane or hoist access all add to it. That is why we survey before quoting.

Under PM Surya Ghar: Muft Bijli Yojana, residential consumers get ₹30,000 for 1 kW, ₹60,000 for 2 kW and ₹78,000 for 3 kW and above. The ₹78,000 is a hard cap — a 5 kW system gets the same central subsidy as a 3 kW one.

The money is credited by DBT to your bank account after the DISCOM commissions your net meter. Only ALMM-listed panels and BIS-certified inverters qualify, which is the single most common reason claims get rejected.

Look at the name printed on your electricity bill. Adani Electricity serves much of the western suburbs, Tata Power covers parts of central and south Mumbai, BEST serves the island city, and MSEDCL covers Thane, Navi Mumbai and the extended MMR.

You cannot choose your licensee — your address decides it — and each one has its own portal, empanelment rules and approval timeline. We file with all four.

The terrace is common property, so you need a society resolution or NOC before anything goes up. Most Mumbai societies start with a common-area system that offsets lift, pump and lobby bills, because that needs no individual meter changes and shows a result on the very next society bill.

Individual flats can then be brought in through group net metering. We prepare the committee presentation, the shadow analysis and the resolution draft.

Generation drops roughly 25–40% across June to September. That is already priced into our estimates — we size on an annual average of about 4.0 to 4.2 effective sun hours a day, not the 5.2 you see in a summer brochure.

Net metering is what carries you through: surplus banked in the dry months offsets the monsoon shortfall on your bill.

Two to four days of physical work on a residential roof. The full timeline — application to a working net meter — is usually 45 to 90 days, because DISCOM feasibility takes 8 to 20 days and post-installation inspection plus meter replacement takes another 10 to 18 days.

There are no moving parts, so mechanically almost none. What Mumbai does demand is cleaning: coastal salt, construction dust and monsoon grime can cost 8–15% of your generation if panels are left unwashed. Our AMC covers scheduled cleaning, inverter health checks and a generation report you can actually read.