Solar Panels for Apartments in India: Complete Guide for Flat Owners

Yes, apartment flat owners in India can install rooftop solar — but it requires housing society approval and coordination with your DISCOM for group or virtual net metering. Under PM Surya Ghar, individual flat owners can claim subsidy for their share of a rooftop system. The most common approach is a society-level installation on the shared terrace, with capacity allocated per flat or used for common area electricity.

Apartment solar installations follow one of two models:

1. Society-Level Installation (Most Common)

The housing society installs a solar system on the common terrace. Power is used for:

• Common areas — lifts, corridor lights, water pumps, CCTV, clubhouse — reducing the maintenance bill for all residents.
• Individual allocation — Some societies allocate kW capacity per flat. Each flat owner gets net metering credits proportional to their share.

2. Individual Flat Owner Installation

A single flat owner can install panels on their allocated terrace space (if the society permits). This is simpler from a metering standpoint but faces space constraints — most flats get 100–200 sq ft of rooftop allocation, enough for a 1–2kW system.

The society-level model is more practical and cost-effective because it uses shared infrastructure (inverter, wiring, net meter) and avoids per-flat space limitations.

This is often the biggest hurdle. Here is a practical roadmap:

1. Build awareness — Share electricity savings data with committee members. A common-area solar system can cut society maintenance charges by ₹2–₹5 per sq ft per month.
2. Pass a general body resolution — Most states require a resolution passed by the society AGM or special general meeting. In Maharashtra, a simple majority suffices.
3. Get a structural assessment — Ensure the terrace can bear panel load (~15 kg/sq m). Most RCC roofs handle this easily. An installer can certify this.
4. Choose the model — Common area only, or allocated per flat? This affects metering, billing, and subsidy eligibility.
5. Select an installer — Get 2–3 quotes from MNRE-empanelled installers who have apartment experience.

The entire process — from first committee meeting to operational system — typically takes 3–6 months for apartments.

Net metering in apartments works differently from standalone homes:

Group Net Metering

A single bi-directional meter is installed at the society level. Surplus solar power offsets the society common area electricity bill. Credits reduce the maintenance charges for all residents.

Virtual Net Metering (VNM)

Available in some states (Maharashtra, Gujarat, Andhra Pradesh). VNM allows a single rooftop system to distribute credits across multiple individual flat electricity meters. Each flat owner sees reduced bills proportional to their allocated share.

Individual Net Metering

If a flat owner installs panels on their allocated space, they can apply for an individual net meter — same as a standalone home. Only practical if you have sufficient dedicated rooftop area.

State-level rules vary significantly. Your installer should confirm which metering option your DISCOM supports. Net metering rules by state →

The PM Surya Ghar scheme explicitly includes apartment flat owners. Key rules:

• Individual flat owners can apply — Each flat owner applies separately using their individual electricity consumer number.
• Subsidy is per consumer — Each flat can claim up to ₹78,000 subsidy (for 3kW allocation).
• Society common area — The society can apply as a single entity for the common area system. Subsidy applies to the first 3kW.
• On-grid only — The system must be grid-connected with net metering. On-grid systems explained →
• MNRE vendor required — Must be installed by an empanelled installer.

In practice, the most subsidy-efficient approach is a society-level installation with virtual net metering, where each participating flat owner claims their individual subsidy.

Check your subsidy eligibility →

• Limited rooftop space — Use high-efficiency monocrystalline or bifacial panels to maximise output per sq ft. A 3kW system with modern 540W panels needs just 6 panels (~180 sq ft).
• Shadow from water tanks, lift rooms — Installers use micro-inverters or power optimisers to mitigate partial shading. These cost more but prevent one shaded panel from dragging down the entire string.
• Multiple flat owners, single system — Draft a solar agreement specifying each flat capacity allocation, maintenance responsibility, and exit terms (if a flat is sold).
• Maintenance access — Designate a society member or the installer for quarterly panel cleaning and annual system checks.
• Tenant vs owner — Only the owner (named on the electricity bill) can apply for subsidy and net metering. Tenants benefit from reduced bills but cannot claim subsidy.

1. Propose to your society committee — Present the financial case: savings estimates, subsidy benefits, and maintenance bill reduction.
2. Pass a resolution — Get it on the AGM agenda. Need simple majority in most states.
3. Get quotes — Request 2–3 quotes from installers experienced with apartment projects.
4. Choose capacity and model — Common area only, or per-flat allocation? Your installer will recommend based on rooftop area and DISCOM rules.
5. Apply for net metering — Installer handles DISCOM paperwork (group/virtual/individual metering).
6. Installation — Typically 2–5 days for a society system. Minimal disruption to residents.
7. DISCOM inspection — Inspector verifies installation, activates net meter.
8. Apply for subsidy — Each eligible flat owner applies through the PM Surya Ghar portal post-commissioning.

Detailed installation process →

Apartment solar projects need installers who understand society dynamics, group metering, and multi-owner coordination. Solar Vipani connects your housing society with verified installers experienced in apartment installations.

Get your free apartment solar quotes →