Government Subsidy for Solar Panel Installation in Chennai: 2026 Guide

Buying guide · 27 October 2026 · 8 min read

The government subsidy for solar panel installation in Chennai is real, but it is often misquoted or misunderstood in proposals. The correct amount, the application process through TANGEDCO, and the actual timing of disbursement are different from what many installers present. This guide covers the 2026 position for Tamil Nadu homeowners.

Residential rooftop solar panel installation in south Chennai eligible for PM Surya Ghar subsidy

What subsidy is available

Under PM Surya Ghar, the central government subsidy for a residential grid-tied rooftop solar installation is structured by system size. For the first 2 kW of installed capacity, the subsidy is ₹30,000 per kW. For the third kW (between 2 kW and 3 kW), the subsidy is ₹18,000. Above 3 kW, there is no additional central subsidy. The maximum central subsidy for a residential installation is therefore ₹78,000 (₹60,000 for the first 2 kW plus ₹18,000 for the third kW).

Who is eligible

The subsidy is available to residential homeowners (not commercial or industrial consumers) who install a grid-tied rooftop solar system through an empanelled installer. The building must have an existing TANGEDCO electricity connection in the homeowner's name. Apartment buildings can apply, but each flat is counted separately and common area installations have different rules. For solar panel installation in Madipakkam specifically, the application goes through the TANGEDCO sub-division covering your area.

How to apply

Applications for PM Surya Ghar are filed through the national portal (pmsuryaghar.gov.in) using the homeowner's EB consumer number. The process: register on the portal, apply for a feasibility check, receive provisional sanction, complete the installation through an empanelled vendor, submit completion documents, and await DISCOM inspection. After inspection and net meter commissioning, the subsidy is disbursed directly to the homeowner's bank account. The process takes two to four months from installation completion to disbursement in most Tamil Nadu cases.

Important: the subsidy goes to the homeowner's bank account, not to the installer. Any installer who asks you to pay the full system cost and promises to return the subsidy to you later is handling your money incorrectly. The correct flow is: homeowner pays for the system (possibly at a subsidised price if the installer adjusts the quote), and the government disburses subsidy to the homeowner after inspection.

Common mistakes

The most common mistake is choosing an installer who is not on the TANGEDCO empanelled list. Only empanelled installers can file subsidy applications. If you hire an unempanelled crew — sometimes cheaper — the system may work, but you cannot claim the subsidy and the net meter application may face additional scrutiny. Confirm empanelment status before signing. For solar panel installation in Chennai through ZeroEB, subsidy filing is part of the standard project scope.

What subsidy does not cover

The subsidy is applied against the installed system cost. It does not cover maintenance, cleaning, annual contracts, or replacement parts after installation. It also does not apply to off-grid battery systems, solar water heaters (which have a separate scheme), or labour-only jobs (where the homeowner supplies the equipment). The installation cost guide shows how the subsidy changes the effective price by system size.