Solar Panels in Tamil Nadu: Price with Subsidy (2025–2026)
Complete guide to installing rooftop solar panels across Tamil Nadu. Calculate exact turnkey costs from 1 kW to 10 kW, PM Surya Ghar Central CFA subsidies (up to ₹78,000), DISCOM net-metering approvals, and SBI 7.00% concessional green solar loans.
In Tamil Nadu, rooftop solar drastically reduces bi-monthly TANGEDCO bills where upper-tier consumption costs up to ₹11/unit. A 3kW system costs ~₹2,02,000 gross; after the ₹78,000 PM Surya Ghar Central subsidy, net cost is ~₹1,24,000. Annual savings range from ₹28,000 to ₹35,000, giving a 3.6-year capital payback under TANGEDCO net metering.
Rooftop Solar Panel Price in Tamil Nadu (1 kW to 10 kW)
Turnkey system costs including DCR ALMM Phase-II panels, grid-tie inverter, HDG GI mounting structure, ACDB/DCDB, surge protection, bi-directional net meter, and commissioning.
| Capacity | Roof Area | Gross Cost | Central Subsidy | Net Price | Monthly Generation | Monthly Savings | SBI 7% Loan EMI | Payback |
|---|---|---|---|---|---|---|---|---|
| 1 kW | 100 sq ft | ₹77,000 | -₹30,000 | ₹47,000 | ~127 units | ~₹780 | ~₹710/mo | 4.8 Yrs |
| 2 kW | 180 sq ft | ₹1,43,000 | -₹60,000 | ₹83,000 | ~255 units | ~₹1,700 | ~₹1,253/mo | 4 Yrs |
| 3 kW | 280 sq ft | ₹2,02,000 | -₹78,000 | ₹1,24,000 | ~382 units | ~₹2,800 | ~₹1,872/mo | 3.6 Yrs |
| 5 kW | 450 sq ft | ₹3,24,000 | -₹78,000 | ₹2,46,000 | ~637 units | ~₹4,850 | ~₹3,715/mo | 4.1 Yrs |
| 10 kW | 900 sq ft | ₹6,18,000 | -₹78,000 | ₹5,40,000 | ~1275 units | ~₹10,200 | ~₹8,154/mo | 4.3 Yrs |
Electricity Boards & DISCOM Net Metering in Tamil Nadu
Official distribution utilities connected with the PM Surya Ghar National PortalTANGEDCO bills on a bi-monthly cycle where progressive tariffs jump sharply past 500 units (up to ₹11.00/unit), making rooftop solar exceptionally profitable for Tamil Nadu AC and villa owners.
Step-by-Step Net Metering & Subsidy Claim Workflow in Tamil Nadu
Submit consumer number under TANGEDCO on pmsuryaghar.gov.in.
Local section officer checks the distribution transformer load.
Vendor installs coastal-grade galvanized structures and DCR solar panels.
Net meter installed and linked with consumer's service connection number.
₹78,000 Central subsidy disbursed via DBT within 30 days.
Solar Rooftop Bank Loans Available in Tamil Nadu
Under the PM Surya Ghar scheme, leading public sector banks provide collateral-free green solar loans across Tamil Nadu at a concessional interest rate of 7.00% p.a. via the JanSamarth Portal:
Solar Panel Prices & Verified Installers Across Major Cities in Tamil Nadu
Select your city for city-specific electricity tariff slabs, DISCOM feeder feasibility, and local installation costs:
ALMM Phase-II Listed Domestic Hardware Available in Tamil Nadu
All systems eligible for the PM Surya Ghar subsidy in Tamil Nadu strictly mandate Domestic Content Requirement (DCR) cells and modules manufactured by MNRE ALMM Phase-II listed producers:
Frequently Asked Questions: Solar Panels in Tamil Nadu
How does TANGEDCO's bi-monthly billing benefit solar users?
Because TANGEDCO calculates tariffs on two months of combined consumption, high-slab rates of ₹8 to ₹11/unit hit consumers quickly. Solar generation wipes out these costly slabs first, maximizing bill reduction.
What is the cost of 3kW solar in Tamil Nadu after subsidy?
Around ₹1,24,000 net after applying the ₹78,000 PM Surya Ghar subsidy on a ₹2,02,000 gross benchmark installation.
Do solar panels in coastal Tamil Nadu resist rust?
Yes, certified vendors use HDG (Hot-Dip Galvanized) structures of minimum 80-micron coating and anodized aluminium frames to prevent sea-spray corrosion.
Explore Solar Panels in Other States of India
View All 28 States & UTsCompare PM Surya Ghar subsidies, state top-ups, DISCOM net metering regulations, and solar insolation across India:
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