What solar subsidy is available in Tamil Nadu in 2026?

Residents of Tamil Nadu can get the PM Surya Ghar Muft Bijli Yojana central subsidy of up to ₹78,000 for systems up to 3kW. Tamil Nadu has strong solar policy — TANGEDCO offers net metering with reasonable tariffs. Apply at pmsuryaghar.gov.in and contact TANGEDCO for net metering registration.

How much does a 3kW solar system cost in Tamil Nadu?

A 3kW on-grid solar system in Tamil Nadu costs approximately ₹1.6–2.1 lakh in 2026. After the central PM Surya Ghar subsidy of ₹78,000, the net cost is around ₹82,000–₹1.32 lakh. Use our solar calculator above to get a personalized estimate based on your electricity bill.

Which DISCOM handles solar net metering in Tamil Nadu?

TNPDCL (formerly TANGEDCO) handles solar net metering in Tamil Nadu. After installing your rooftop solar system, you need to register with your local DISCOM to get a bi-directional meter. Excess solar power exported to the grid earns you credits at the applicable feed-in tariff rate.

How do I apply for PM Surya Ghar subsidy in Tamil Nadu?

To apply for PM Surya Ghar subsidy in Tamil Nadu: 1) Register at pmsuryaghar.gov.in with your Aadhaar and electricity consumer number. 2) Choose an MNRE-empanelled installer from your area. 3) Get the system installed. 4) Submit installation certificate and inspection report. 5) Subsidy is disbursed directly to your bank account within 30 days of approval.

Solar Calculator Tamil Nadu - Check Subsidy & Cost (2026)

Solar Energy in Tamil Nadu: Complete 2026 State Guide

Tamil Nadu is one of India's leading rooftop-solar states, and a single DISCOM (TNPDCL, formerly TANGEDCO) handles the whole state.

Solar Potential in Tamil Nadu

Tamil Nadu receives approximately 5.4 peak sun hours per day on average. A 3 kW rooftop solar system in Tamil Nadu generates approximately 5,026 units per year and can save ₹2,685/month on your electricity bill at the current TANGEDCO tariff of ₹6.50/unit.

Estimated payback period: ~3.2 years after PM Surya Ghar subsidy. After payback, you get 20+ years of virtually free electricity.

PM Surya Ghar Subsidy in Tamil Nadu (2026)

Residents of Tamil Nadu are fully eligible for the central PM Surya Ghar Muft Bijli Yojana:

Up to 2 kW: ₹30,000/kW (total ₹60,000)
2–3 kW: ₹18,000/kW for the extra capacity (total ₹78,000 for 3 kW)
Above 3 kW: No additional central subsidy, but net metering still applies

State subsidy: No general state top-up. Central PM Surya Ghar applies; TNPDCL (formerly TANGEDCO) handles net metering.

Your DISCOM & Net Metering in Tamil Nadu

Electricity distribution and solar net metering in Tamil Nadu is handled by TANGEDCO (Tamil Nadu Generation and Distribution Corporation) — entire state.

Net metering limit: 1 MW
Application portal: tangedco.gov.in / teda.in
Solar target for Tamil Nadu: 20 GW solar by 2030 under TN Green Energy Policy

How to Apply for Solar in Tamil Nadu

Register at pmsuryaghar.gov.in with your Aadhaar and consumer number
Select your DISCOM (TANGEDCO) in the portal
Choose an MNRE-empanelled installer from the portal's vendor list
Get the system installed (typically 2–4 days for 1–5 kW)
Submit commissioning certificate to TANGEDCO for net meter installation
Subsidy credited to your bank account within 30 days of net meter commissioning

Why Go Solar in Tamil Nadu in 2026?

💰 Save ₹2,685/month on your electricity bill
🏛️ PM Surya Ghar subsidy up to ₹78,000 — no repayment needed
⚡ Net metering — export surplus solar to grid for credits
📈 Property value increases 3–5% with solar installation
🌿 Reduce CO₂ by ~1.5 tonnes/year per kW installed
🔧 25-year warranty on quality solar panels (Waaree, Adani, Tata, Vikram)

See city-specific guides for Tamil Nadu: Chennai, Coimbatore, Madurai, Salem

Use our Solar Cost Calculator and ROI Calculator to get personalised estimates for your home in Tamil Nadu, or open the free solar calculator for every tool in one place.

Solar Calculator Tamil Nadu