The Roof Top Solar Subsidy Scheme, implemented by the Energy Department with the Tamil Nadu Green Energy Corporation, provides an additional state subsidy of up to Rs. 22,000 over the central assistance available under the PM Surya Ghar Muft Bijli Yojana. Eligible households can receive a combined subsidy of up to Rs. 1,00,000 through DBT for installing a rooftop solar plant of up to 10 kW. The consumer must register on the national portal on or after 5 August 2026 to qualify for the state subsidy.
Tamil Nadu Roof Top Solar Subsidy Scheme Highlights | |
|---|---|
| Scheme Name | Roof Top Solar Subsidy Scheme (Tamil Nadu Solar Acceleration Scheme, Nam Veedu Solar Veedu) |
| Announcement Date | 5 August 2026, under the Revised Budget 2026-27 |
| Implementing Department | Energy Department, Government of Tamil Nadu |
| State Nodal Agency | Tamil Nadu Green Energy Corporation Limited (TNGECL) |
| Electricity Distribution Utility | Tamil Nadu Power Distribution Corporation Limited (TNPDCL), responsible for net metering and plant inspection |
| Vendor and Subsidy Verification | TEDA-empanelled vendors carry out installations, while TEDA verifies subsidy claims |
| Scheme Type | Additional State Government subsidy over the central rooftop solar assistance |
| Eligible Beneficiaries | Residential TNPDCL consumers, including domestic common service connections |
| Eligible Registration Date | On or after 5 August 2026, on the PM Surya Ghar Muft Bijli Yojana National Portal |
| Eligible Solar Plant Capacity | Residential rooftop solar plants of up to 10 kW |
| Total Subsidy for 1 kW | Rs. 35,000, comprising Rs. 30,000 from the Centre and Rs. 5,000 from the State |
| Total Subsidy for 2 kW | Rs. 70,000, comprising Rs. 60,000 from the Centre and Rs. 10,000 from the State |
| Total Subsidy for 3 kW and Above | Rs. 1,00,000, comprising Rs. 78,000 from the Centre and Rs. 22,000 from the State |
| Subsidy Payment Mode | Direct Benefit Transfer (DBT) to the consumer’s bank account |
| State Subsidy Processing Time | 7 to 15 days after the central subsidy is credited and the required verification is completed |
| Free Electricity Generation | Up to 300 units per month from a 3 kW plant, depending on actual generation |
| Solar Module Requirements | Domestic Content Requirement (DCR)-compliant and ALMM-listed modules |
| Surplus Electricity | Credited under the applicable net feed-in arrangement at the tariff fixed by the Regulatory Commission |
| Important Documents | Electricity bill, applicant photograph, net metering agreement, installed plant photographs and DCR module details |
| Application Process | Register on the PM Surya Ghar Muft Bijli Yojana National Portal first, followed by the Solar Roof Top Portal |
| TNPDCL Helpline | 1912 (24-hour helpline) |
| Portal Toll-Free Number | 1800 425 2500 |
| Official Scheme Portal | Tamil Nadu Solar Roof Top Portal |
Introduction of Tamil Nadu Roof Top Solar Subsidy Scheme: A Brief Insight
Every month, families in Tamil Nadu pay electricity bills, even when their rooftops receive plenty of sunlight. A rooftop solar plant can help them reduce this expense, but the initial installation cost often becomes a hurdle. The Tamil Nadu Roof Top Solar Subsidy Scheme, also known as the Tamil Nadu Solar Acceleration Scheme or Nam Veedu Solar Veedu, aims to make rooftop solar more affordable for households.
The Government of Tamil Nadu announced this scheme in its Revised Budget for 2026-27, presented by Finance Minister Dr. N. Marie Wilson on 5 August 2026. Under this initiative, the State Government provides an additional subsidy over the central assistance available through the PM Surya Ghar Muft Bijli Yojana.
The Tamil Nadu Energy Department oversees the scheme, while the Tamil Nadu Green Energy Corporation (TNGECL) serves as the State nodal agency. TNPDCL handles net meter installation and plant inspections, TEDA verifies vendors and subsidy claims, and the Tamil Nadu Solar Roof Top Portal provides the online application facility.
The scheme aims to make rooftop solar power more affordable and accessible to households. It helps families reduce their electricity expenses while encouraging the use of clean energy. It also allows Tamil Nadu to increase its renewable energy generation without requiring additional land for large solar projects.
Eligible households can receive a combined subsidy of up to ₹1,00,000, comprising ₹78,000 from the Central Government and ₹22,000 from the Tamil Nadu Government. The state subsidy is ₹5,000 for a 1 kW plant, ₹10,000 for a 2 kW plant and ₹22,000 for a plant of 3 kW or above. Both amounts are transferred directly to the beneficiary’s bank account through Direct Benefit Transfer (DBT).
A 3 kW rooftop solar plant can generate up to 300 units of electricity per month under suitable conditions. Households can send surplus electricity to the grid and receive credits according to the applicable tariff. The state subsidy is expected within 7 to 15 days after the central subsidy is credited and the required verification is completed. Eligible consumers do not need to submit a separate application for the state top-up.
The scheme covers residential electricity consumers of TNPDCL who register on the PM Surya Ghar Muft Bijli Yojana National Portal on or after 5 August 2026. They can install a rooftop solar plant with a capacity of up to 10 kW. The installation must use DCR-compliant and ALMM-listed solar modules, and a TEDA-empanelled vendor must carry out the work.
To apply, a household must first register on the national portal and then complete the required steps on the Tamil Nadu Solar Roof Top Portal using its reference number. After selecting an eligible vendor, the consumer can proceed with installation, inspection and net meter connection. For assistance, consumers can call the TNPDCL helpline at 1912 or the Tamil Nadu portal’s toll-free number at 1800 425 2500.
Households looking for complete details about the central rooftop solar subsidy can read our guide to the PM Surya Ghar Muft Bijli Yojana. Farmers interested in solar-powered irrigation facilities can also explore the PM Kusum Yojana.
Households, farmers and other readers can explore more welfare and development programmes through our Tamil Nadu Government Welfare and Popular Schemes page.
Latest Update on Tamil Nadu Roof Top Solar Subsidy Scheme
- 5 August 2026: The Government of Tamil Nadu announced the scheme in its Revised Budget for 2026-27. It will provide additional state subsidy to eligible households installing rooftop solar plants under the PM Surya Ghar Muft Bijli Yojana.
- State Subsidy Rates: The Tamil Nadu Government fixed the additional subsidy at ₹5,000 for a 1 kW plant, ₹10,000 for a 2 kW plant and ₹22,000 for a plant of 3 kW or above. This takes the maximum combined central and state subsidy to ₹1,00,000.
- Online Application Facility: The Tamil Nadu Solar Roof Top Portal has a separate facility for entering state subsidy details of consumers who registered on the national portal on or after 5 August 2026.
- 22 October 2026: The portal updated its online facilities, including the subsidy benefit calculator, application status check and document upload page for the Net Metering Agreement, installed plant photographs and DCR details.
- Scheme Guidelines: The scheme order and detailed guidelines are still awaited on the portal. Applicants should check the official website for the final conditions and instructions before proceeding.
- Prepare Before Applying: Eligible consumers should keep their latest electricity bill, consumer number, Aadhaar Card and Aadhaar-linked bank account details ready. They should also complete registration on the PM Surya Ghar Muft Bijli Yojana National Portal on or after 5 August 2026.
Benefits Provided to Eligible Beneficiaries
Installing a rooftop solar plant can help households reduce their electricity expenses for many years. However, the initial installation cost may prevent many families from switching to solar power. The Roof Top Solar Subsidy Scheme of the Tamil Nadu Government reduces this cost by providing an additional state subsidy along with the central assistance available under the PM Surya Ghar Muft Bijli Yojana.
- Eligible households can receive a combined subsidy of up to ₹1,00,000, including ₹78,000 from the Central Government and ₹22,000 from the Tamil Nadu Government.
- A 1 kW rooftop solar plant attracts a total subsidy of ₹35,000, comprising ₹30,000 from the Centre and ₹5,000 from the State.
- A 2 kW plant attracts a combined subsidy of ₹70,000, comprising ₹60,000 from the Centre and ₹10,000 from the State.
- For a 3 kW or larger eligible plant, the maximum combined subsidy is ₹1,00,000.
- Both subsidies are transferred directly to the consumer’s bank account through Direct Benefit Transfer (DBT).
- The state subsidy is expected to reach the beneficiary within 7 to 15 days after the central subsidy is credited and the required verification is completed.
- Consumers do not need to submit a separate application for the state top-up, as the Tamil Nadu portal automatically picks up the central subsidy payment details.
- A 3 kW rooftop solar plant can generate enough electricity to provide up to 300 units of free electricity per month, depending on actual generation and consumption.
- Each installed kW can generate approximately 4 to 5 units of electricity per day under suitable conditions.
- Consumers can send surplus electricity to the grid and receive credit according to the tariff fixed by the Tamil Nadu Electricity Regulatory Commission.
- A rooftop solar plant can operate for around 25 years, helping households reduce their electricity expenses over the long term.
- Consumers do not need separate permission from the Municipal Authority or the Pollution Control Board for the installation, as stated under the scheme provisions.
- The feasibility approval requirement is waived for rooftop solar plants with a capacity of up to 3 kW.
- The online benefit calculator helps consumers estimate the installation cost after subsidy. At the stated average market price, the estimated amount payable is around ₹42,500 for 1 kW, ₹72,500 for 2 kW and ₹1,00,000 for 3 kW.
- Consumers can track their application status on the portal using their application reference number or registered mobile number.
Eligibility Conditions Required to be Fulfilled
The Government of Tamil Nadu’s Roof Top Solar Subsidy Scheme supports domestic electricity consumers who want to generate solar power for their household use. Applicants must first qualify for the central subsidy under PM Surya Ghar Muft Bijli Yojana to receive the additional subsidy from the Tamil Nadu Government.
The final eligibility conditions will be governed by the official scheme guidelines. Based on the requirements mentioned on the official portal, applicants should meet the following conditions.
Who Can Apply
- The applicant must be a residential (domestic) electricity consumer of the Tamil Nadu Power Distribution Corporation (TNPDCL), including consumers with a domestic common service connection.
- The applicant must hold a valid electricity service connection with an active consumer number.
- The consumer must have registered on the PM Surya Ghar National Portal on or after 5 August 2026.
- The consumer must qualify for and receive the Central Government subsidy under PM Surya Ghar Muft Bijli Yojana before claiming the Tamil Nadu state subsidy.
Conditions Related to the Solar Plant
- The solar installation must be a residential rooftop solar system with a capacity of up to 10 kW.
- The system must be grid-connected and use a TNPDCL-approved net meter or net feed-in meter.
- The solar modules must meet Domestic Content Requirement (DCR) standards and appear on the Approved List of Models and Manufacturers (ALMM).
- The installation must be completed through a TEDA-empanelled vendor.
- The rooftop must have sufficient shadow-free space. A 1 kW solar system generally requires around 10 square metres of space.
Conditions for Receiving the State Subsidy
- The consumer can claim the state subsidy only after the solar plant is installed, connected through net metering and commissioned.
- The Central Government subsidy under PM Surya Ghar must first be credited to the consumer’s bank account.
- TEDA must verify the consumer’s eligibility, solar plant commissioning and bank account details before releasing the state subsidy.
- The consumer must have an Aadhaar-linked bank account to receive the subsidy through Direct Benefit Transfer (DBT).
- The consumer must upload the Net Metering Agreement, installed plant photographs and DCR module details on the Tamil Nadu Solar Rooftop Portal.
Who Is Not Eligible
- Consumers holding commercial or other non-domestic electricity connections are not covered under this residential subsidy scheme.
- Consumers who registered on the PM Surya Ghar National Portal before 5 August 2026 are not eligible for the Tamil Nadu state subsidy.
- Solar plants with a capacity of more than 10 kW are not covered under this scheme’s subsidy limit.
- Installations using non-DCR-compliant solar modules or completed by vendors who are not empanelled with TEDA do not meet the stated scheme conditions.
Documents Required to be Attached
The Tamil Nadu Government’s Roof Top Solar Subsidy Scheme (Tamil Nadu Solar Acceleration Scheme, Nam Veedu Solar Veedu) requires different documents at the registration, solar plant installation and subsidy claim stages. Applicants should keep clear copies or scanned versions of the following documents ready and check the official portal for the final document requirements.
Documents for Registration
- Latest TNPDCL electricity bill receipt showing the consumer number and region code
- Recent passport-size photograph of the applicant
- Aadhaar Card
- Mobile number linked to the electricity consumer number
- Email ID of the applicant
- PM Surya Ghar National Portal reference number
- TNPDCL application reference number
- Payment receipt for application charges deposited through the TNPDCL payment portal
Documents for Installation and Net Metering
- Model agreement signed between the consumer and the solar vendor
- Invoice and payment receipt issued by the TEDA-empanelled vendor
- Net Metering Agreement
- Photographs of the installed rooftop solar plant
- Domestic Content Requirement (DCR) details of the solar modules, including their serial numbers
- DCR compliance certificate and Approved List of Models and Manufacturers (ALMM) self-declaration
- Solar plant readiness report
- Commissioning Certificate issued by TNPDCL
Documents for the Subsidy
- Aadhaar-linked bank account details of the consumer, including the account number and IFSC code
- Proof showing receipt of the Central Government subsidy under PM Surya Ghar Scheme
- Consumer’s State subsidy details uploaded on the Tamil Nadu Solar Rooftop Portal
- Proof of scheme registration on or after 5 August 2026
- Bank passbook copy or cancelled cheque for bank account verification
How Beneficiaries Can Apply to Avail the Benefit of this Scheme
You need to complete two main registrations to get the benefit of the Tamil Nadu Roof Top Solar Subsidy Scheme. First, register your electricity connection on the national portal under the PM Surya Ghar Muft Bijli Yojana. After that, complete the required steps on the Tamil Nadu Solar Roof Top Portal.
You do not need to submit a separate application for the Tamil Nadu state subsidy. The state portal picks up your central subsidy payment details and processes the additional benefit after the required checks.
Before You Start
Step 1: First, check your electricity bill. Your house must have a domestic electricity connection from TNPDCL.
Step 2: Keep your latest electricity bill receipt ready. You will need the consumer number and region code printed on it.
Step 3: Keep your Aadhaar Card and the details of your Aadhaar-linked bank account. The subsidy will be transferred directly to your bank account.
Step 4: Keep the mobile number linked to your electricity consumer number with you. The portal will send OTPs to this number during registration.
Step 5: Check the space available on your rooftop. It should receive sufficient sunlight without obstruction from trees or nearby buildings. Generally, a 1 kW solar plant needs around 10 square metres of space.
Step 6: Before applying, open the Tamil Nadu Solar Subsidy Benefit Calculator. Enter the required details to estimate the amount you may need to pay after receiving the subsidies.
Register on the PM Surya Ghar Muft Bijli Yojana Portal
Step 1: Open the PM Surya Ghar Muft Bijli Yojana National Portal.
Step 2: Start the registration process. Select Tamil Nadu as your state and enter your electricity distribution company, consumer number and mobile number as required by the portal.
Step 3: Make sure you register on or after 5 August 2026. The Tamil Nadu state subsidy is available only to consumers who registered on the national portal on or after this date.
Step 4: Enter the required details and select the rooftop solar plant capacity you want to install.
Step 5: Submit your application and save the National Portal reference number. You will need this number while completing the process on the Tamil Nadu portal.
Apply on the Tamil Nadu Solar Roof Top Portal
Step 1: Now, open the Tamil Nadu Solar Roof Top Portal.
Step 2: Visit the TNPDCL Reference Number Generation Page. Enter the reference number you received from the national portal and follow the instructions to generate your TNPDCL reference number.
Step 3: Open the Apply for Solar with Subsidy Page. Enter your electricity consumer number along with the region code.
Step 4: Enter the security code shown in the picture and verify your mobile number using the OTP sent to you.
Step 5: Fill in the application details and upload the required documents, including your electricity bill receipt and photograph.
Step 6: Pay the applicable application charges through the TNPDCL payment portal. Keep the payment receipt for future reference.
Step 7: After submitting the application, wait for the acknowledgement and feasibility approval from TNPDCL. The feasibility approval requirement is waived for solar plants with a capacity of up to 3 kW.
Choose a Vendor and Install the Solar Plant
Step 1: Open the List of Registered Solar Vendors. Select a vendor who is empanelled with TEDA for the Tamil Nadu scheme.
Step 2: Before installation, sign an agreement with the selected vendor. Read the agreement carefully and check the installation cost, equipment details and other conditions.
Step 3: Ask the vendor to install solar modules that meet the Domestic Content Requirement (DCR) and appear on the Approved List of Models and Manufacturers (ALMM).
Step 4: The vendor will install the solar plant on your rooftop. Pay the agreed amount and collect the invoice and payment receipt.
Step 5: Once the installation is complete, ask the vendor to submit the solar plant readiness report to TNPDCL.
Step 6: Upload the Net Metering Agreement, photographs of the installed plant and DCR module details through the Consumer Readiness Upload Page.
Meter Installation, Inspection and Connection
Step 1: After the vendor completes the installation and submits the required details, TNPDCL will inspect the solar plant.
Step 2: TNPDCL will arrange the installation of a net meter. This meter records the electricity you take from the grid and the surplus electricity your solar plant sends back to it.
Step 3: After completing the inspection and metering formalities, TNPDCL will issue the commissioning approval and connect your solar plant to the electricity grid.
Receive Your Central and State Subsidies
Step 1: After successful installation and commissioning, complete the required formalities on the national portal. The Central Government subsidy of up to ₹78,000 will be processed after verification by REC and transferred to your bank account through DBT.
Step 2: If required, open the State Subsidy Details Submission Page. Enter the requested information to help the Tamil Nadu portal process your additional subsidy.
Step 3: TEDA will verify your eligibility, solar plant commissioning details and bank account information before approving the state subsidy.
Step 4: After successful verification, the Tamil Nadu Government will transfer the applicable state subsidy to your bank account. The additional amount is ₹5,000 for a 1 kW plant, ₹10,000 for a 2 kW plant and ₹22,000 for a plant of 3 kW or above. The stated processing period is 7 to 15 days after the central subsidy and verification.
Step 5: Once your solar plant starts working, you can use the electricity it generates for your household. A 3 kW plant can generate up to 300 units per month under suitable conditions. Any surplus electricity can be sent to the grid as per the applicable metering arrangement.
Track Your Application Status
Step 1: To check your application progress, open the Application Status Page and enter your application reference number.
Step 2: You can also check the status using your registered mobile number through the Mobile Number-Based Status Check Page.
Step 3: If you have any doubts about registration, installation or subsidy payment, visit the portal’s Frequently Asked Questions (FAQs) Page.
Important: Complete the application only through the official PM Surya Ghar Muft Bijli Yojana National Portal and the Tamil Nadu Solar Roof Top Portal. Do not pay any agent who promises faster approval or a higher subsidy. For assistance, contact the TNPDCL helpline at 1912 or call the Tamil Nadu portal’s toll-free number at 1800 425 2500.
Important Links Available of the Scheme
- Tamil Nadu Solar Roof Top Portal: Apply for the Tamil Nadu Roof Top Solar Subsidy Scheme
- PM Surya Ghar Muft Bijli Yojana: National Portal for Rooftop Solar Registration
- Tamil Nadu Rooftop Solar Subsidy Calculator: Check Central and State Subsidy Benefits
- Apply for Rooftop Solar Subsidy in Tamil Nadu: TNPDCL Application Portal
- Generate TNPDCL Reference Number Using PM Surya Ghar Application Reference
- Check Tamil Nadu Rooftop Solar Subsidy Application Status by Application Number
- Tamil Nadu Solar Roof Top Portal: FAQs on Solar Installation and Net Metering
- PM Surya Ghar Muft Bijli Yojana: List of Registered Rooftop Solar Vendors
- Tamil Nadu Rooftop Solar Tariff Order: Grid-Connected Solar and Net Feed-In Rules
- Tamil Nadu Power Distribution Corporation Limited (TNPDCL): Official Website
- Tamil Nadu Green Energy Corporation Limited (TNGECL): Official Website
Contact Details in Case of Help Needed
- State Nodal Agency: Tamil Nadu Green Energy Corporation Limited (TNGECL), NPKRR Maaligai campus, Chennai
- Utility: Tamil Nadu Power Distribution Corporation Limited (TNPDCL), 144 Anna Salai, Chennai – 600002
- TNPDCL Helpline: 1912 (Minnagam), available 24 hours
- TNPDCL WhatsApp: 94987 94987
- Toll-Free Number of the Solar Portal: 1800 425 2500
- Department: Energy Department, Government of Tamil Nadu, Secretariat, Fort St. George, Chennai – 600009
- PM Surya Ghar Helpline: 15555 and 1800-180-3333
- PM Surya Ghar WhatsApp: 73033 06935
- PM Surya Ghar Email: rtssupport@recindia.com
- Local Help: The TNPDCL office of your area, where your net meter and your plant are inspected
Frequently Asked Questions (FAQs)
Ans. It is a Tamil Nadu Government scheme that provides an additional state subsidy to eligible households installing rooftop solar plants under the PM Surya Ghar Muft Bijli Yojana. The scheme is also known as the Tamil Nadu Solar Acceleration Scheme or Nam Veedu Solar Veedu.
Ans. The scheme was announced in the Tamil Nadu Revised Budget for 2026-27, presented on 5 August 2026.
Ans. The Tamil Nadu Energy Department oversees the scheme. TNGECL acts as the State nodal agency, TNPDCL handles electricity connections, inspections and net metering, while TEDA verifies vendors and subsidy claims.
Ans. An eligible household can receive a combined subsidy of up to ₹1,00,000. This includes ₹78,000 from the Central Government and ₹22,000 from the Tamil Nadu Government.
Ans. The Tamil Nadu Government provides ₹5,000 for a 1 kW plant, ₹10,000 for a 2 kW plant and ₹22,000 for a plant of 3 kW or above.
Ans. Residential electricity consumers of TNPDCL, including domestic common service connections, can apply. They must register on the PM Surya Ghar Muft Bijli Yojana National Portal on or after 5 August 2026 and install an eligible rooftop solar plant of up to 10 kW.
Ans. No. The state subsidy is meant for residential rooftop solar installations. Commercial and other non-domestic consumers are not covered under this scheme.
Ans. No separate application is required for the state top-up, according to the portal process described for the scheme. The Tamil Nadu portal picks up the central subsidy payment details, after which TEDA verifies the claim.
Ans. First, register on the PM Surya Ghar Muft Bijli Yojana National Portal. Then visit the Tamil Nadu Solar Roof Top Portal, generate your TNPDCL reference number, submit the required details, select a TEDA-empanelled vendor and complete the installation and net metering process.
Ans. Keep your latest electricity bill, consumer number, Aadhaar Card, applicant photograph, registered mobile number and Aadhaar-linked bank account details ready. You will also need the national portal reference number and installation-related documents during the later stages.
Ans. The solar modules must meet the Domestic Content Requirement (DCR) and appear on the Approved List of Models and Manufacturers (ALMM). A TEDA-empanelled vendor must carry out the installation.
Ans. The state subsidy is released after installation, net metering, commissioning, credit of the central subsidy and verification by TEDA. The stated processing period is 7 to 15 days after the central subsidy and verification.
Ans. A 3 kW rooftop solar plant can generate up to 300 units of electricity per month under suitable conditions. On average, every 1 kW of installed capacity can generate around 4 to 5 units per day.
Ans. Visit the Tamil Nadu Solar Application Status Page and enter your application number. You can also use the mobile number-based status checking facility.
Ans. You can contact the TNPDCL helpline at 1912 or call the Tamil Nadu Solar Roof Top Portal’s toll-free number at 1800 425 2500. You can also refer to the official portal FAQs for assistance.
Tabassum is a government schemes researcher and writer with 5 years of experience tracking Central and State welfare scheme programmes across India. She has covered 500+ schemes spanning agriculture, women welfare, education, and housing, helping lakhs of beneficiaries understand their entitlements in simple language.