Solar Panels for Apartments in India: Cost, Subsidy and Installation Guide

For years, going solar in India has felt like a benefit reserved for people living in independent homes. If you live in a flat, you may have been told that rooftop solar isn’t for you. In 2026, that answer is no longer correct. Between PM Surya Ghar’s new provisions for housing societies, the maturity of group and virtual net metering in several states, and the arrival of plug and play balcony kits, apartment residents now have four legitimate ways to generate their own clean power.

This guide walks through the costs, the subsidies, the installation process, and the practical options available to apartment residents and housing societies across India today.

Why Apartment Solar Is Different From House Solar

An independent home has one owner, one roof, and one electricity meter. An apartment building has none of these things working in your favour. The terrace is common property controlled by the Resident Welfare Association (RWA) or housing society. Each flat has its own meter. The common areas (lifts, pumps, corridor lights, basement parking) have a separate account entirely.

That is why apartment solar in India has split into four distinct models, each suited to a different situation.

The Four Ways Apartment Residents Can Go Solar

1. Common area rooftop solar. The society installs one shared plant on the terrace, and the generation offsets common area electricity consumption. This reduces maintenance charges across all flats, but individual flat bills do not change.

2. Group Net Metering (GNM). One rooftop solar plant on the society terrace, but the generation is distributed as credits across multiple individual flat meters in a ratio the society agrees with the DISCOM. Each flat sees its own electricity bill reduced.

3. Virtual Net Metering (VNM). A solar plant is installed somewhere other than the apartment building (a leased plot, a nearby commercial roof, a solar park). Credits flow back to flat owners through the DISCOM. No society NOC is required because nothing is being built on the common terrace.

4. Balcony solar kits. Small plug and play systems (300W to 1kW) that fit on a balcony railing or terrace of an individual flat. No RWA approval needed in most cases, no DISCOM application for the smallest kits.

The right choice depends on how much electricity your household uses, what your society committee is willing to approve, and which net metering policies your state allows.

What Does Apartment Solar Cost in India in 2026?

Pricing varies by model and system size. Below are the typical ranges you can expect from a reputable solar company in India this year.

System Type	Typical Size	Approximate Cost (Before Subsidy)
Balcony solar kit	300W to 1 kW	Rs. 25,000 to Rs. 90,000
Common area rooftop (small society)	10 to 25 kW	Rs. 5.5 lakh to Rs. 15 lakh
Common area rooftop (large society)	25 to 100 kW	Rs. 13 lakh to Rs. 50 lakh
Group Net Metering (per flat allocation)	1 to 3 kW per flat	Rs. 55,000 to Rs. 65,000 per kW
Virtual Net Metering (per flat allocation)	1 to 3 kW per flat	Rs. 55,000 to Rs. 65,000 per kW

A few important notes:

• Prices above are indicative and depend on the quality of panels (Mono PERC vs TOPCon), the type of inverter, mounting structure, cable runs, and site complexity.
• Balcony solar kits generally do not qualify for PM Surya Ghar subsidy because they are not DISCOM interconnected in the same way.
• Society level installations above 10 kW often qualify for a higher capital subsidy slab, which brings the effective cost down substantially.

PM Surya Ghar Subsidy for Apartments: What You Can Actually Claim

This is where the picture has genuinely improved for apartment residents in 2026.

For individual flat owners (through GNM or VNM): The standard residential subsidy applies.

System Size	Central Subsidy
1 kW	Rs. 30,000
2 kW	Rs. 60,000
3 kW and above	Rs. 78,000 (capped)

The subsidy flows via Direct Benefit Transfer (DBT) directly to each flat owner’s bank account after DISCOM verification and commissioning.

For housing societies (RWA / Group Housing Societies): PM Surya Ghar extends a separate Central Financial Assistance for common area and group installations. The structure has been reported at around Rs. 18,000 per kW for capacities beyond the individual household slabs. Before planning your budget, always verify the current amount and conditions directly at pmsuryaghar.gov.in, since the subsidy framework has been updated several times through 2025 and 2026.

For balcony solar kits: PM Surya Ghar subsidy typically does not apply. The low upfront cost and standalone savings still make these systems attractive, but plan for the full cost out of pocket.

State top ups: Several states (Delhi, Rajasthan, Gujarat, Maharashtra) add their own capital subsidy on top of the central scheme. Check your DISCOM’s current state subsidy policy before signing anything.

State by State Reality Check for Group and Virtual Net Metering

GNM and VNM policies vary significantly by state. Here is where things stand in 2026:

• Delhi, Maharashtra, Karnataka, Tamil Nadu: Both Group and Virtual Net Metering formally notified and implemented. These are the easiest states for apartment solar today.
• Gujarat: Group net metering available for housing societies through local DISCOMs.
• Kerala: Group net metering available through KSEB. Virtual net metering less common. Note that unused export credits lapse at the end of the financial year, so systems should be sized carefully.
• Uttar Pradesh, Rajasthan, Haryana: Policies notified, with implementation speed varying across DISCOMs.

Always verify the current rules with your state’s DISCOM before planning a group or virtual net metering project.

The Apartment Solar Installation Process: Step by Step

Based on how successful society installations run across Indian cities, here is the typical sequence from AGM to commissioning.

Step 1: Build consensus and get AGM approval. The society committee needs a formal AGM resolution authorizing the use of the common terrace, the scope of the project, the vendor selection criteria, and the signing authority. This step is usually the slowest. Budget 1 to 3 months for consensus building.

Step 2: Share consumption data with vendors. Six months of common area electricity bills (and individual flat bills if planning GNM) help the installer size the system to actual load, not nameplate guesswork.

Step 3: Feasibility and shadow analysis. A qualified installer visits the terrace, measures available shadow free area, checks structural load capacity, and estimates annual generation. For GNM, the installer also designs the credit sharing ratio among participating flats.

Step 4: Vendor selection via RFQ. Shortlist 2 to 3 vendors. Check their installation history on the PM Surya Ghar portal. Score them on experience, technology, financing options, warranty, and price. Visit an existing installation, ideally one that is 18 to 24 months old.

Step 5: DISCOM application and net metering registration. Each participating flat owner (for GNM/VNM) or the RWA (for common area) registers on the national portal, selects an empanelled vendor, and files for DISCOM feasibility approval. This typically takes 2 to 4 weeks.

Step 6: Installation. Physical installation for a 25 kW system typically takes 45 to 60 days, including structural work, panel mounting, cabling, and inverter commissioning.

Step 7: DISCOM inspection, meter installation, and commissioning. The DISCOM engineer verifies the installation, approves it, and installs the bidirectional net meter. This stage usually takes about 2 months.

Step 8: Subsidy disbursement. Once commissioned, subsidy flows via DBT to the registered accounts. Expect 2 to 6 months after going live, depending on state processing speed.

Documents You Will Need (For Society Installations)

Keep this file ready before approaching any solar company in India for a society project:

• Common area electricity bills for the last 6 months
• Society registration certificate and PAN card
• AGM resolution authorizing the project and terrace use
• Occupancy certificate (OC)
• Terrace / roof rights documentation
• Builder NOC (if the society has not yet been formed or the terrace has not been transferred)
• KYC documents for the authorized signatory

Which Apartment Solar Option Is Right for You?

The right path depends on your situation:

• You are a tenant or short term resident: Balcony solar kit. Low cost, portable, no RWA fights.
• You own a flat in a cooperative society with an engaged committee: Push for Group Net Metering. It is the highest value model for individual flat owners.
• Your committee is willing but the terrace is shaded or structurally limited: Virtual Net Metering with an installation at a different location.
• Your committee prefers simplicity and shared benefit: Common area solar first. It reduces maintenance charges for everyone and builds trust for a larger GNM project later.

Common Mistakes to Avoid

A few issues come up repeatedly in apartment solar projects:

• Choosing an installer with no society experience. The paperwork is harder than a single home install. An installer who has only done bungalow rooftops will underestimate timelines.
• Skipping the structural load survey. Apartment terraces have water tanks, lift machine rooms, and sometimes future expansion plans competing for space. Load calculations matter.
• Under sizing by looking only at summer bills. Monsoon generation drops in several Indian regions. Size against annual consumption, not peak month.
• Ignoring the financial year settlement. In states like Kerala, unused credits lapse on March 31. Oversizing is expensive.

How El Sol Power Solutions Handles Apartment Solar

At El Sol Power Solutions, we handle apartment and housing society installations end to end. That means the RWA alignment conversation, the structural survey, the shadow analysis, the AGM documentation support, the DISCOM paperwork for group net metering, the subsidy filing for every participating flat owner, and the long term monitoring that keeps the system producing year after year.

For housing societies especially, we treat the project as a multi party solar panel installation, not a single home job. Our team walks the committee through the vendor selection process, explains the subsidy flow in simple terms, and gives the society a clear timeline from AGM to commissioning. If you are on an RWA committee and have been quoted conflicting numbers by different installers, a conversation with our team usually clears up what is realistic for your building.

Frequently Asked Questions

1. Can apartment residents in India get PM Surya Ghar subsidy?

Yes. Individual flat owners installing solar through Group or Virtual Net Metering qualify for the standard residential subsidy, up to Rs. 78,000 for 3 kW and above. Housing societies installing common area or group systems can claim a separate CFA. Always verify current slabs at pmsuryaghar.gov.in before planning your budget.

2. Do I need my housing society’s approval for a balcony solar kit?

In most buildings, no formal RWA approval is required for a small plug and play system installed inside your own balcony. However, building bylaws vary. It is always a good idea to inform the society committee in writing before installation.

3. How much does a 25 kW common area solar system cost for a housing society?

A 25 kW rooftop solar system for a housing society typically costs Rs. 13 lakh to Rs. 15 lakh before subsidy. After PM Surya Ghar CFA for societies, the effective cost drops significantly.

4. Is Group Net Metering available in my state?

Group Net Metering is formally notified and operational in Delhi, Maharashtra, Karnataka, Tamil Nadu, Gujarat, Kerala, and several other states. Policies vary, so verify current rules with your local DISCOM.

5. What is the payback period for apartment solar in India?

Payback typically runs 4 to 6 years for subsidised group net metering systems, 5 to 7 years for common area installations, and 6 to 8 years for balcony solar kits.

6. Can I install solar on my individual balcony without an inverter and net metering?

Yes. Balcony solar kits often come with a built in micro inverter and can directly power appliances inside your flat without any DISCOM involvement, as long as the system size stays within locally permitted limits.

7. Who maintains the system in a group installation?

Maintenance is typically handled by the installing solar company in India under an Annual Maintenance Contract (AMC). The society pays for AMC from common area funds, and savings from the system usually cover this cost many times over.

Conclusion

If you live in a flat and have been told that rooftop solar isn’t for you, 2026 is the year that answer stops being true. Between group net metering, virtual net metering, common area installations, and balcony solar kits, there is a legitimate path for almost every apartment resident in India to start generating their own clean power.

The right next step depends on what you want: a lower personal electricity bill, lower society maintenance charges, or a quick plug and play solution for just your own flat. Whichever path fits your situation, the El Sol Power Solutions team is one phone call away to walk you through the options, the real costs, and the subsidy flow for your specific building. A good solar panel installation designed around your society (not a generic template) is what turns apartment solar from a confusing idea into 25 years of predictable savings.

Clean energy is no longer a privilege reserved for independent houses. Your flat, your balcony, or your society terrace can all become part of the shift. The question in 2026 is only which model you choose to start with.