PM Surya Ghar Subsidy for High-Rise Apartments & Housing Societies (2026 Guide)
Verified Energy & Solar Policy Specialist
⚡ Quick Take for RWAs & Society Treasurers (October 2026): Under the PM Surya Ghar Muft Bijli Yojana, Group Housing Societies (GHS) and Resident Welfare Associations (RWAs) can claim a Central Financial Assistance (CFA) subsidy of ₹18,000 per kW for rooftop solar systems powering common utilities (elevators, water pumps, corridor lighting, EV charging) up to a maximum cap of 500 kW (Total ₹90 Lakh Subsidy).
1. The Housing Society Solar Challenge in India
In high-density metros like Mumbai, Bengaluru, Delhi-NCR, Pune, and Hyderabad, common electricity consumption in high-rise societies accounts for 25% to 40% of total maintenance collections. Pumping thousands of liters of water to overhead tanks, running 4 to 8 high-speed passenger elevators 24/7, and powering basement ventilation/lighting drives commercial-tier tariff bills (often ₹9 to ₹13 per kWh).
Historically, rooftop solar in societies stalled because individual flats lacked dedicated roof rights. The 2026 updated guidelines of PM Surya Ghar Muft Bijli Yojana specifically streamline Common Meter Solar Subsidies for Multi-Dwelling Units (MDUs).
2. PM Surya Ghar Subsidy Structure for Housing Societies (GHS/RWA)
| System Capacity | Subsidy Rate per kW | Maximum Total Subsidy | Applicable Loads |
|---|---|---|---|
| Common Area Power (Up to 500 kW) | ₹18,000 / kW | ₹90,00,000 (₹90 Lakhs) | Lifts, Water Pumps, Street Lights, Club House |
| EV Charging Stations (Common) | ₹18,000 / kW (within 500 kW cap) | Combined within 500 kW | Society EV Basements / Public Points |
| Individual Flat Meters (Separate) | ₹30,000/kW (1-2 kW) · ₹78,000 Flat (3 kW+) | ₹78,000 per flat meter | Individual household appliances |
💡 Crucial Rule: The ₹18,000/kW subsidy applies up to 3 kW per individual household in the society, aggregate capped at 500 kW for the entire residential group compound. For a 100-flat society installing a 50 kW common solar plant, the full ₹9,00,000 CFA subsidy is credited directly to the RWA bank account.
3. Financial ROI & Payback for a 50 kW High-Rise System
| Parameter | Estimated Cost / Value |
|---|---|
| Gross Project Cost (50 kW Elevated Structure) | ₹26,50,000 |
| PM Surya Ghar CFA Subsidy (₹18,000 × 50 kW) | - ₹9,00,000 |
| Net Society Capital Outlay (Capex) | ₹17,50,000 |
| Annual Solar Generation (~4 units/kW/day) | 73,000 kWh (Units) |
| Annual Electricity Savings (@ ₹11.50/unit) | ₹8,39,500 / year |
| Simple Payback Period | ~2.1 Years |
| 25-Year Cumulative Savings | ₹1.85+ Crore |
4. Net Metering vs Virtual Net Metering (VNM) for Apartments
Depending on your state DISCOM regulations, housing societies can choose between two models:
- Common Meter Net Metering (Most Common): Solar output is fed directly into the society's primary 3-phase commercial/common service meter. Units generated offset the high-tariff elevator, pump, and lighting bills directly.
- Virtual Net Metering (VNM - Delhi, Gujarat, Maharashtra): Solar generated on the shared roof is exported to the grid, and credits are divided proportionally across individual apartment power bills in ratio of their agreed investment share.
5. Step-by-Step Approval Process for RWAs
- AGM Resolution: Pass a General Body Meeting (GBM) resolution approving rooftop solar installation with at least 50% majority.
- Roof Shading & Structural Audit: Verify lift machine rooms and water tank shadows. Install elevated superstructures (pergola design, 8-10 ft high) to keep rooftop recreation areas fully accessible.
- National Portal Application: Apply online on pmsuryaghar.gov.in under the 'RWA/GHS' category using the Common Area electricity consumer number.
- DISCOM Technical Feasibility: The local DISCOM conducts site verification and sanctions transformer capacity load.
- Installation & Bi-Directional Meter: MNRE-empanelled vendor installs DCR solar panels, grid inverter, and installs the bidirectional net meter.
Written by Shraddha
Solar policy analyst and technical research specialist at SolarCalculators.in, tracking MNRE PM Surya Ghar subsidy regulations, industrial C&I solar models, and renewable engineering across India.