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Find out if your apartment is solar-ready, how much you can save with group net metering or common area solar, and the exact cost per flat in your housing society.
Installing solar panels in an apartment complex or housing society requires a different approach compared to independent homes. Since roofs are typically shared spaces, the most practical solution for Housing Societies (RWAs) is to install a common solar plant. This plant connects directly to the common area utility meter—powering your elevators, lobby lights, water pumps, and clubhouses. By offsetting this massive shared electricity load, the society drastically reduces its monthly electricity bills, which directly translates into lower monthly maintenance charges for every flat owner.
Group Net Metering Explained: Several progressive states in India—such as Maharashtra, Delhi, and Rajasthan—now allow "Group Net Metering." This is a game-changer for apartments. Under this scheme, if a housing society installs a large solar system on a common roof, the electricity generated is fed into the grid. The local electricity distribution company (DISCOM) then distributes the solar credits proportionally across the individual electricity bills of participating flat owners. This means you can enjoy reduced personal electricity bills even without installing panels on your own balcony or window.
What if you live in a rented flat or lack roof access? Renters and individual flat owners in high-rises often cannot install rooftop panels. However, "Balcony Solar" (small plug-and-play portable solar setups) is becoming increasingly popular. While they might only offset a small portion of your bill (like running a fridge or fans), they are movable and don't require structural changes. Alternatively, you can urge your RWA to opt for a RESCO (Renewable Energy Service Company) model. In a RESCO model, a third-party installs and maintains the solar plant on the society's roof at zero upfront cost to the residents, and the society simply buys the discounted solar power from them.
Typically, you need ownership of the roof or common space to install traditional rooftop solar panels. If you rent, you can explore portable balcony solar panels if allowed by your landlord and society rules, but permanent grid-tied rooftop solar usually requires the owner's permission and structural approvals.
Group net metering allows a solar power system installed on a common roof to offset the individual electricity bills of multiple flat owners. The power generated is fed into the grid, and the energy credits are distributed among participating residents based on a pre-agreed sharing ratio, reducing everyone's personal utility bills.
Yes, Group Housing Societies (GHS) or Resident Welfare Associations (RWA) can apply for the PM Surya Ghar Muft Bijli Yojana subsidy. For common facilities, the subsidy is typically fixed at ₹18,000 per kW, available for a total system capacity up to 500 kW.
The solar system is connected to the society's common area meter, which powers high-consumption utilities like lifts, lobby lighting, and water pumps. The electricity generated offsets this common consumption. By eliminating this expense, the society saves heavily, which enables a reduction in the per-flat monthly maintenance charges.
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