The PM Surya Ghar Muft Bijli Yojana is the single biggest reason rooftop solar has become affordable for Chennai households — but the eligibility rules, documentation, and multi-step approval process trip up a lot of applicants. This guide walks through exactly who qualifies, how much you'll actually receive, and every step of the application from registration to the subsidy landing in your bank account.
What Is the PM Surya Ghar Muft Bijli Yojana?
It's the Government of India's national rooftop solar subsidy scheme, designed to make residential solar installations affordable by directly crediting a subsidy amount to the homeowner's bank account after a system is installed and commissioned. Unlike older subsidy models routed through installers or discoms, this scheme pays the homeowner directly, which is meant to improve transparency and reduce delays.
Who Is Eligible in Chennai?
To qualify for the subsidy on a residential rooftop system in Chennai, you generally need:
- An Indian citizen with a residential electricity connection under TANGEDCO
- Ownership of, or clear legal right to modify, the rooftop where panels will be installed
- A valid TANGEDCO consumer number matching the name on the application
- No prior rooftop solar subsidy already availed on the same electricity connection
- A roof with adequate structural condition and shadow-free area, confirmed during the site survey
Renters and tenants can participate only with the property owner's consent and involvement, since both the roof rights and the electricity connection need to align with the applicant's name for the subsidy and net metering to process correctly.
Subsidy Amount by System Size
The subsidy is tiered by installed capacity:
| System Size | Typical Household Fit | Subsidy Amount |
|---|---|---|
| 1 kW | Very small households, low consumption | ₹30,000 |
| 2 kW | Small-to-mid family homes | ₹60,000 |
| 3 kW and above | Most 2–3 BHK Chennai households | ₹78,000 (maximum residential subsidy) |
The ₹78,000 subsidy is a ceiling — it does not increase further for systems larger than 3kW. Larger systems remain a good investment, but the additional capacity beyond 3kW is funded at your own cost.
Step-by-Step Application Process
-
Register on the National Portal
Create an account on the official PM Surya Ghar portal using your state, DISCOM (TANGEDCO), and electricity consumer number. This is the system of record for your entire application.
-
Apply for Rooftop Solar
Fill in your consumer details and submit the application for rooftop solar installation as prompted by the portal.
-
Get Feasibility Approval from TANGEDCO
TANGEDCO reviews your application and confirms technical feasibility for your connection and location. This step is where an experienced installer's familiarity with local DISCOM requirements genuinely speeds things up.
-
Choose a Registered Vendor and Get the System Installed
Once feasibility is approved, select an empanelled installer (your installer should already be registered) to carry out the site survey, engineering, and installation.
-
Submit Plant Details on the Portal
After installation, the vendor submits the installed system's specifications (capacity, equipment details) back on the portal for TANGEDCO's record.
-
Apply for Net Metering
TANGEDCO conducts an inspection and installs a net meter to enable two-way electricity flow between your rooftop system and the grid.
-
Commissioning Certificate Generated
Once the net meter is installed and inspection is complete, TANGEDCO issues a commissioning certificate confirming your system is officially operational.
-
Submit Bank Details and Complete KYC
Enter your bank account details and complete KYC on the portal — this is the account the subsidy will be credited to, so accuracy here matters more than almost any other step.
-
Receive the Subsidy
The subsidy amount is credited directly to your registered bank account, typically within a few weeks of successful commissioning and KYC verification, though processing times can vary.
Documents You'll Need
- Recent electricity bill (showing consumer number and connection details)
- Proof of identity (Aadhaar or equivalent government ID)
- Proof of property ownership or rooftop rights
- Bank account details and passbook/cancelled cheque for KYC
- Passport-size photograph (where requested by the portal)
Good to know: Most delays in this process happen at the feasibility approval and net-metering inspection stages, not the initial online registration. Choosing an installer who is already empanelled and experienced with TANGEDCO's specific requirements meaningfully reduces back-and- forth at these steps.
Common Reasons Applications Get Delayed or Rejected
- Name mismatch between the electricity bill, the portal registration, and bank KYC
- Incomplete or incorrect bank details, which stalls subsidy disbursal even after successful installation
- Structural or shading issues identified during the feasibility review that weren't caught in an informal pre-check
- Non-empanelled vendor selected for installation, which can complicate the plant- details submission step
Most of these are correctable on the same application rather than requiring a fresh start — but catching them early with a proper site survey and a vendor who knows the process saves weeks.
Frequently Asked Questions
Who is eligible for the PM Surya Ghar subsidy in Chennai?
You need to be an Indian residential electricity consumer with your own rooftop (owned, not exclusively rented without owner consent), a valid TANGEDCO consumer number, and no prior rooftop solar subsidy already claimed on the same connection. Renters can apply only with the property owner's participation, since the subsidy and net metering are tied to the electricity connection and roof rights.
How long does the PM Surya Ghar subsidy take to arrive after installation?
After TANGEDCO completes the net-metering inspection and commissioning, subsidy disbursal to your registered bank account typically follows within a few weeks, though exact timelines can vary based on portal processing volumes and documentation accuracy. Keeping your bank details and KYC updated on the portal from the start avoids most delays.
Can I apply for the subsidy on my own, or do I need an installer?
You can technically register on the portal yourself, but the vendor empanelment, technical feasibility submission, and net-metering liaison with TANGEDCO are far easier with an experienced installer handling the paperwork. Most delays happen at these technical and documentation steps, not the initial registration.
What happens if my subsidy application gets rejected or delayed?
Common causes include mismatched consumer details between the electricity bill and the portal, incomplete bank KYC, or feasibility issues flagged by TANGEDCO. Most rejections can be corrected and resubmitted on the same application rather than starting over, and a good installer will help identify and fix the specific issue quickly.
Want help checking your eligibility and handling the entire application for you? Get a free subsidy eligibility check from Arka Solar Energy — no obligation.