Chief Minister's Solar Rooftop Capital Incentive Scheme

What is the Chief Minister's Solar Rooftop Capital Incentive Scheme?

Chief Minister's Solar Rooftop Capital Incentive Scheme is a Tamil Nadu state capital subsidy for household rooftop solar. The Energy Department introduced it in 2013 through the Tamil Nadu Energy Development Agency (TEDA), and its purpose was straightforward: put a Rs 20,000 per kilowatt state incentive on top of the central rooftop subsidy so that a middle-income household in Chennai, Coimbatore or Madurai could afford a grid-connected system.

The incentive is a capital subsidy, not a tariff support. It reduces the up-front cost of the panels, inverter and installation rather than paying anything per unit generated. The state incentive was pegged at 1 kW per home or flat, so the maximum state contribution to a single household was Rs 20,000 even where a larger array was installed.

How the scheme fits together

• The state incentive of Rs 20,000 per kW came from TEDA.
• The central subsidy came from the Ministry of New and Renewable Energy's rooftop programme, which at the time of launch was pitched at 30 per cent of benchmark cost.
• TANGEDCO handled the technical side; feasibility, grid connectivity approval and the bidirectional net meter.
• The consumer paid the balance, usually with a bank loan or from savings.

What is the current status of the scheme?

Chief Minister's Solar Rooftop Capital Incentive Scheme is one of the schemes where a reader must be told plainly what is not certain. No fresh statewide application window for the state capital incentive is currently published. TEDA, the implementing agency, was merged into the Tamil Nadu Green Energy Corporation in 2024, and reports on whether the Rs 20,000 per kW state incentive is still being sanctioned conflict with one another.

What that means in practice:

• Do not sign an installation contract on the assumption that the Rs 20,000 per kW state incentive will arrive. Ask TEDA in writing first and keep the reply.
• Do not assume the state incentive can be stacked on top of the current central PM Surya Ghar Muft Bijli Yojana subsidy. Stacking rules changed when the central scheme was restructured, and only TEDA can confirm the present position.
• Treat any vendor who promises both subsidies in a sales pitch with caution, and ask for the government order the promise rests on.

The central route is live and reliable: PM Surya Ghar Muft Bijli Yojana, applied for at pmsuryaghar.gov.in, with TANGEDCO as the distribution licensee that approves feasibility, sanctions net metering and inspects the commissioned system.

Who is eligible for the state rooftop solar incentive?

You can be considered if:

• You are a domestic electricity consumer of TANGEDCO in Tamil Nadu.
• You own the building on which the rooftop system will be installed, or hold the owner's written authority together with the ownership documents.
• The system is grid-connected with net metering sanctioned by TANGEDCO, not a standalone off-grid array.
• The installation is done by an empanelled vendor using equipment that meets the notified technical standards.

You are not eligible if:

• You are a commercial, industrial or institutional consumer. The capital incentive is a domestic scheme.
• You are a tenant without the owner's authority and ownership papers.
• You install an off-grid system with no net metering, which falls outside the grid-connected rooftop programme.
• You use a non-empanelled installer or equipment outside the technical specification.
• You have already claimed a capital subsidy on the same capacity under another state or central scheme.

What documents are required?

How to apply for rooftop solar subsidy in Tamil Nadu

1. Confirm the state incentive's status with TEDA before spending anything. Ask whether the Chief Minister's Solar Rooftop Capital Incentive Scheme is open for the current year and whether it can be combined with PM Surya Ghar.
2. Register on the national portal pmsuryaghar.gov.in, selecting Tamil Nadu and TANGEDCO as your distribution company, and enter your consumer number as printed on the electricity bill.
3. Apply for feasibility approval through the portal. TANGEDCO checks whether your service connection and local distribution transformer can take the proposed capacity.
4. Choose a vendor from the empanelled list shown on the portal, agree the capacity in kilowatts and the price, and get the installation done.
5. Apply for net metering, after which TANGEDCO installs the bidirectional meter and inspects the commissioned plant.
6. Submit the commissioning certificate, invoice, bank account details and cancelled cheque, and the central subsidy is credited to your bank account.
7. If TEDA confirms the state incentive is open, file the separate TEDA claim with the same commissioning documents and the net metering sanction.

How much does the incentive save on a household system?

The state incentive as notified is Rs 20,000 per kilowatt, limited to 1 kW per household. On a typical 1 kW domestic array it therefore takes a meaningful bite out of the installed cost, but on a 3 kW array it does not scale — the state cap stays at one kilowatt while the central subsidy is calculated on the sanctioned capacity.

The saving that lasts is not the subsidy but the bill. A grid-connected rooftop system with net metering exports surplus generation to TANGEDCO during the day and draws from the grid at night, and the consumer is billed on the net. In a state with Tamil Nadu's solar irradiation, a well-sited south-facing roof with no shading generates through most of the year.

How to check your application status

1. Log in to pmsuryaghar.gov.in with your registered mobile number and open the application dashboard, which shows feasibility, installation, net metering, inspection and subsidy stages separately.
2. For the net metering stage, follow up with your TANGEDCO section office, since meter fitting and inspection are local activities.
3. For any state incentive claim, follow up with the TEDA office handling rooftop solar.
4. Use the TANGEDCO consumer helpline 1912 for grid connection, meter and billing issues.

Common problems and how to avoid them

• Assuming both subsidies will be paid. Get the stacking position in writing before installation.
• Installing before feasibility approval. A system built without approval may not get net metering, and without net metering there is no subsidy.
• Using a non-empanelled installer because the quote was cheaper. That single decision disqualifies the whole installation from subsidy.
• Shaded or structurally weak roofs, which cut generation and can fail inspection.
• Name mismatch between the electricity service connection, the ownership documents and the bank account. Sort this out before applying.

Help and grievance redressal

• TEDA, the Tamil Nadu Energy Development Agency, for the state capital incentive and its current status.
• TANGEDCO consumer helpline 1912, for feasibility, net metering and meter issues.
• pmsuryaghar.gov.in, for the central subsidy application and its status.
• TANGEDCO section and division offices, for on-ground inspection and commissioning.

Where a figure or a window in this guide cannot be confirmed for the current year, the right step is a written query to TEDA rather than reliance on a vendor's assurance.

Common reasons for rejection

Most rejections in this programme happen at the feasibility, net metering or documentation stage rather than on the subsidy claim itself, since TANGEDCO and TEDA check the application against fixed technical and ownership rules before any money moves.

• Feasibility rejected because the local transformer or line cannot take the load. TANGEDCO evaluates the sanctioned capacity against the distribution transformer capacity in your area. If your locality already has many rooftop installations, a new application can be turned down or capped at a lower kilowatt figure. The fix is to check with the local TANGEDCO section office before finalising a vendor quote, and if capped, apply for the lower sanctioned capacity rather than resubmitting the same request repeatedly.
• Consumer category mismatch. The application is filed under a commercial or industrial tariff category, or the property has a mixed residential-cum-shop connection billed as non-domestic. Since the capital incentive is restricted to domestic consumers, this results in a straight rejection. Confirm the tariff category on your TANGEDCO bill before applying, and get it corrected with TANGEDCO first if it is wrongly classified.
• Ownership or authorisation gap. The application is filed by someone whose name does not match the property records, typically a family member, a tenant, or a joint owner acting alone without the co-owner's consent letter. Carry the sale deed or patta and, where the applicant is not the sole recorded owner, a signed no-objection letter from the other owners.
• Vendor not on the empanelled list at the time of installation. Vendor empanelment lists change periodically, and an installer who was empanelled when you first enquired may have dropped off the list by the time the system is commissioned. Re-verify the vendor's empanelled status on the portal immediately before signing the work order, not months earlier.
• Capacity claimed does not match the invoice or the physical installation. If the commissioning certificate and installer invoice show a different kilowatt figure than what was sanctioned in the feasibility approval, the claim is held up or rejected pending a fresh inspection. Ask the installer to match the invoiced capacity exactly to the sanctioned capacity before commissioning.
• Bank account details do not match the applicant's name. A joint account, a closed account, or an account in a family member's name causes the subsidy transfer to fail and the claim to be returned. Use an active individual savings account in the applicant's own name and verify the IFSC and account number against a recent passbook entry before submission.
• Incomplete or expired net metering approval. Applying for the subsidy before TANGEDCO has actually fitted the bidirectional meter and signed off the net metering agreement is a frequent cause of rejection, since the claim cannot be processed without that sanction in hand. Wait for the physical meter change and the signed net metering paperwork before filing the final claim.
• Duplicate claim on the same rooftop or connection. If a capital subsidy has already been paid on any part of the sanctioned capacity, whether under this scheme, a housing society claim, or an earlier central scheme cycle, a second claim on the same service connection number is rejected as a duplicate. Check your own past record with TEDA or TANGEDCO before applying again for an expanded system.