A buyer’s guide to the most affordable, reliable solar panel brands for Indian homes in 2026 — ALMM-listed options, price ranges, and how to pick the right one for your roof.

If you’re a homeowner in Chennai or anywhere else in Tamil Nadu thinking about rooftop solar, the government subsidy is often the single biggest factor in your decision. Here’s a clear, step-by-step breakdown of how much you can get, who qualifies, and exactly how to apply — updated for 2026.

How much subsidy can you get?

The subsidy comes from a single central government scheme called the PM Surya Ghar Muft Bijli Yojana, launched in February 2024. Tamil Nadu does not currently run a separate state-level cash subsidy on top of it — TANGEDCO’s role is to process your application, not fund it. The subsidy is paid as a Direct Benefit Transfer straight into your bank account after installation and inspection, and it follows a simple slab structure:

• Up to 2 kW: ₹30,000 per kW
• 3rd kW: an additional ₹18,000
• Systems 3 kW and above: capped at ₹78,000 total, regardless of how much bigger you go

In practice, most Chennai homes with a bi-monthly EB bill between ₹2,500 and ₹5,000 land in the 2–3 kW range, which qualifies for the full ₹78,000.

Who is eligible?

• You must own a residential property with an active domestic electricity connection from TANGEDCO
• Installation must be carried out by a vendor registered on the PM Surya Ghar national portal
• TANGEDCO’s technical feasibility approval must come through before installation begins
• The property must not have previously received a central rooftop solar subsidy

If your household is on a subsidised or free-unit domestic tariff, it’s worth checking with TANGEDCO how net metering interacts with your existing benefit, since the calculation can differ slightly from a standard metered connection.

Step-by-step: how to apply

1. Register on the national portal. Go to pmsuryaghar.gov.in, click “Apply for Rooftop Solar,” and select your state (Tamil Nadu), district, and DISCOM (TANGEDCO). Verify with an OTP to your registered mobile number.
2. Enter your electricity details. Add your TANGEDCO service connection number exactly as it appears on your bill. The portal auto-pulls your sanctioned load. If it doesn’t link, a call to your local TANGEDCO section office usually resolves it within a day or two.
3. Submit your proposed system size and documents. Enter the solar capacity you’re planning and upload the required documents (see below), then submit for feasibility review.
4. Wait for technical feasibility approval. TANGEDCO checks that your roof and electrical infrastructure can support the system — this typically takes 7 to 15 business days.
5. Choose your installer and install. Once feasibility is approved, the portal unlocks vendor selection. Your chosen installer completes the installation and applies for the net-metering inspection.
6. Net-metering inspection and commissioning. TANGEDCO installs the bidirectional meter and commissions your connection.
7. Subsidy credited to your account. Once commissioning is confirmed on the portal, the subsidy is transferred directly to your registered bank account — no separate claim form needed.

Documents you’ll need

• Latest TANGEDCO electricity bill (with service connection number)
• Proof of property ownership or a No Objection Certificate if rented/shared
• Aadhaar card
• Bank account details (passbook copy or cancelled cheque) for the DBT transfer
• Passport-size photograph

How long does the whole process take?

End-to-end, most Chennai applications move from registration to a live, subsidy-credited system in around 3 to 5 weeks — faster if your documents are ready and your installer is already empanelled with TANGEDCO. The physical installation itself is usually a single day’s work (roughly 8–10 hours); it’s the feasibility and net-metering approvals on either side that take most of the calendar time.

Common mistakes that delay the subsidy

• Using an unregistered installer. If your vendor isn’t empanelled on the PM Surya Ghar portal, your subsidy claim can be rejected outright.
• Entering the wrong service connection number. A mismatch here is the most common reason applications stall at the very first step.
• Installing before feasibility approval. Systems installed before TANGEDCO signs off on feasibility can run into complications getting net-metering approved.
• Incomplete bank details. Since the subsidy is a direct transfer, any mismatch between your Aadhaar and bank KYC details can delay the payout by weeks.

Let us handle the paperwork for you

At Sri Saran Solar Solutions, we file your complete PM Surya Ghar application and manage the TANGEDCO net-metering process on your behalf — from portal registration through to your subsidy hitting your bank account. If you’re in Chennai and want a free site visit to see exactly what size system and subsidy you qualify for, get in touch.

A 3kW rooftop solar system in Chennai costs around ₹1.45 lakh after subsidy in 2026. See the full cost breakdown, PM Surya Ghar subsidy details, payback period, and FAQs.

Solar isn’t a one-size-fits-all decision, but certain signs make it an especially smart move right now — particularly when paired with battery backup. If you’re on the fence, here are five signs it’s time to talk to an installer.

1. Your Electricity Bills Keep Climbing

If you feel like you’re paying more for the same amount of power every year, that’s usually the clearest signal. Rising tariffs and time-of-use pricing mean the cost of grid electricity rarely goes down — solar lets you lock in more predictable energy costs and reduce how much you depend on the grid for your day-to-day usage. The good news: government incentives can offset a big part of the upfront cost — see our guide on how much solar subsidy you can get under PM Surya Ghar Yojana.

2. You’ve Experienced Power Cuts That Disrupted Your Day

Solar panels alone stop producing during a grid outage for safety reasons — it’s only when they’re paired with a battery that you actually keep the lights on. If outages have cost you work-from-home hours, spoiled refrigerated food, or just plain inconvenience, a solar-plus-battery system solves that directly. A battery captures your panels’ daytime output and holds it in reserve for exactly these moments.

3. Your Roof Gets Strong, Unobstructed Sunlight

This is the physical readiness check. A roof with good southern or western exposure, minimal shading from trees or neighboring buildings, and structural condition good enough to support panels for 20+ years is ideal. If your roof is older or due for replacement, it’s worth doing that first — replacing a roof after panels are installed is a costly, avoidable hassle.

4. You’re Planning to Stay in Your Home Long-Term

Solar is a long-term investment with a payback period that typically plays out over several years. If you’re settled in your home and not planning to move soon, you’ll capture the full value of lower bills, battery backup, and rising resale appeal that solar-equipped homes tend to have. Chennai homeowners specifically can also tap into local subsidy schemes — read more in our rooftop solar subsidy guide for Chennai.

5. You Want More Control Over Your Energy Costs and Independence

Beyond savings, many homeowners choose solar because they want less dependence on an aging, sometimes unpredictable grid. A well-designed solar-plus-battery system can become the foundation of a smarter home energy setup — one that powers your home, can support EV charging, and keeps essentials running no matter what the grid is doing. This ties directly into some of the latest solar energy trends shaping 2026, where battery storage and smart energy management are becoming the industry standard.

How Many Signs Apply to You?

If two or more of these sound familiar, it’s a strong indication that your home is ready for solar and battery backup. The best next step is a professional site assessment — checking your roof condition, sun exposure, current electrical setup, and usage patterns to design a system that actually fits your home.

Sri Saran Solar Solutions offers free consultations and site assessments. Get in touch with our team to find out what a solar-plus-battery system could look like for your home.