Rooftop Solar Subsidy in Tamil Nadu
What residential consumers in Tamil Nadu can claim under PM Surya Ghar, how the application flows through your DISCOM, and what a rooftop system will actually generate at your latitude.
5.3 h
avg. peak sun hours / day
~126
units / kW / month
₹78,000
max central subsidy (3 kW+)
PM Surya Ghar subsidy window: 31 March 2027
The ₹78,000 central residential subsidy is sanctioned through the end of FY 2026-27 (31 March 2027). Apply and get commissioned well before this date. No extension has been officially notified; MNRE has indicated the one-crore-household target may fall short by March 2027, which makes an extension plausible but not assured — plan around the published date.
As of October 2026 — confirm the current position on pmsuryaghar.gov.in.
Central Subsidy Structure (National)
The PM Surya Ghar: Muft Bijli Yojana subsidy is uniform across India, including Tamil Nadu. It is credited directly to the applicant’s bank account after commissioning and inspection.
| System capacity | Central assistance |
|---|---|
| First 2 kW | ₹30,000 per kW |
| Third kW | ₹18,000 per kW |
| Above 3 kW | No additional central subsidy (max ₹78,000) |
Tamil Nadu State Subsidy — On Top of the Central Amount
As of October 2026, Tamil Nadu has no widely-documented additional state top-up beyond the national PM Surya Ghar subsidy — so a 3 kW+ home receives up to ₹78,000. State incentives are announced and revised from time to time; confirm the current position with TEDA (Tamil Nadu Energy Development Agency) or your DISCOM before budgeting. We update these pages as verified schemes change.
Announced: Tamil Nadu rooftop solar state top-up (August 2026) — launch details not yet published
Tamil Nadu’s Revised Budget 2026-27, presented on 6 August 2026, announced a Rooftop Solar Subsidy Scheme to run in convergence with PM Surya Ghar, giving domestic consumers up to ₹1 lakh in total — the state adding ₹22,000 to the central ₹78,000 for a 3 kW system — with ₹50 crore earmarked (one report adds a target of 1 lakh consumers by March 2027). Some reports give a tiered state amount of ₹5,000 for 1 kW, ₹10,000 for 2 kW and ₹22,000 for 3 kW and above; others mention only the 3 kW figure, and where the bands start and end differs between reports. We found no launch date, government order or application process, and one report that TEDA would process it automatically after the central subsidy is unconfirmed. So the amount is not added to any total here; the price pages show it as a separate "if launched as reported" scenario. Confirm the status with TEDA or TNPDCL before relying on it.
Checked October 2026 (moderate confidence). Sources: DT Next — TN Budget 2026 · Energetica India · Saur Energy (tier amounts) · Deccan Chronicle, 15 Aug 2026
Subsidy information verified October 2026. Schemes and amounts change frequently — always confirm with the official state portal or your DISCOM before making a purchase decision.
Net Metering in Tamil Nadu
Net metering tiers: up to 10 kW residential, 500 kW LT commercial, 1 MW HT
Tamil Nadu’s distribution business (formerly TANGEDCO, now operating as TNPDCL) offers net metering under the TNERC regulations in capacity tiers: residential systems up to 10 kW, LT commercial up to 500 kW and HT industrial/commercial up to 1 MW. Credits net monthly; any cumulative year-end surplus is paid at an avoided-cost rate reported in the ₹2.25–3.60 per unit range depending on category and the order in force — below the retail tariff. Confirm the current figure with TNPDCL before relying on it.
Based on regulator orders and corroborated reports; rates and limits are revised often — confirm with TNPDCL (TANGEDCO) before sizing.
Net-metering information checked October 2026. See how four major states compare in our net metering by state guide, or size your system with the solar ROI calculator.
Electricity Distribution Companies in Tamil Nadu
Your rooftop application is processed by the DISCOM that serves your connection. In Tamil Nadu, the principal distribution company is:
What Will a System Generate in Tamil Nadu?
At Tamil Nadu’s typical solar resource of ~5.3 peak sun hours per day and a realistic 78% performance ratio, each kW of rooftop solar produces about 126 units/month (1,509 units/year). A common 3 kW residential system therefore generates roughly 378 units/month — compare that against your electricity bill to gauge coverage.
How to Apply from Tamil Nadu
- 1Register on the national portal (pmsuryaghar.gov.in) with your electricity consumer number and DISCOM details.
- 2Submit the online application; the DISCOM reviews technical feasibility for your connection.
- 3After feasibility approval, install the system through any registered vendor of your choice.
- 4Apply for net metering; the DISCOM inspects the plant and installs the net meter.
- 5Submit the commissioning report and bank details — the central subsidy is credited directly to your account, typically within 30 days.
Frequently Asked Questions
- How Much Solar Subsidy Can I Get in Tamil Nadu?
- The central PM Surya Ghar subsidy is the same nationwide: ₹30,000/kW for the first 2 kW and ₹18,000 for the third kW — up to ₹78,000 for a 3 kW+ residential system. As of October 2026, Tamil Nadu has no widely-documented additional state top-up; confirm the latest position with TEDA (Tamil Nadu Energy Development Agency) before finalising.
- How Much Electricity Will 1 kW of Solar Generate in Tamil Nadu?
- At roughly 5.3 peak sun hours per day and a typical 78% performance ratio, expect about 126 units per month (≈ 1,509 units per year) per kW of installed capacity.
- What Is the Last Date to Apply for Solar Subsidy in Tamil Nadu?
- The central PM Surya Ghar subsidy is sanctioned through 31 March 2027 (as of October 2026); no extension had been officially notified, so apply and get commissioned well before then. Check pmsuryaghar.gov.in for the current position.
- Which DISCOM Handles Rooftop Solar Applications in Tamil Nadu?
- TNPDCL (TANGEDCO). Applications route through the national PM Surya Ghar portal, which forwards them to your DISCOM for feasibility approval and net metering.
Solar Subsidy in Other South India States
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