Bids Invited to Install 10 MW of Rooftop Solar on Government Buildings in Tamil Nadu

Tamil Nadu Energy Development Agency (TEDA) has issued a notice inviting tender (NIT) for a rate contract for installing 10 MW of grid-connected rooftop solar systems atop various government buildings in Tamil Nadu.

The project must be completed within 90 days of securing permission from the officials to carry out the works. The successful bidders must provide five years of operation and maintenance (O&M) services.

Bidders must pay a non-refundable tender processing fee of ₹10,000 (~$131). They must also furnish an earnest money deposit of ₹1 million (~$13,100).

The last day to submit the bids is May 25, 2022. The bids will be opened on the same day.


Successful bidders must remit 5% of the total project cost as a security deposit within 15 days from the issue of the letter of acceptance.

Bidders must have an average annual turnover of ₹5 million (~$65,465) in the last three financial years ending 2020-21. Bidders must also have a positive net worth in the last three financial years.

Bidders must have designed, supplied, installed, and maintained grid-connected rooftop solar systems of 10 kW and above, having a cumulative capacity of 500 kW spread across India during the last five years ending 2020-21. The works must have been executed under state nodal agencies, government organizations, and public sector undertakings.

If delivery is delayed, liquidity damages of 1% will be charged on the unfinished quantity per week or part thereof, subject to a maximum of 10% of the contract price.

Only modules listed in the Ministry of New and Renewable Energy’s list of models and module manufacturers under the Approved List of Models and Manufacturers (ALMM) regulation can be used. The modules must carry a warranty of a minimum of 25 years. The modules must be warranted for their output peak watt capacity, which must not be less than 90% at the end of 10 years and 80% at the end of 25 years.

The comprehensive maintenance charge (CMC) for five years is fixed at 10% of the project cost at a 2% escalation per year. The maintenance must include replacing all parts or components found defective due to manufacturing defects or wear and tear, free of cost. If the module is not functional, it should be repaired, restored, or replaced within seven days. If the successful bidder fails to restore the project to good working condition within seven days, a penalty of ₹500 per day of the breakdown period beyond seven days will be levied.

TEDA has issued a notice inviting tender to empanel vendors to install 12 MW of grid-connected residential rooftop solar systems in Tamil Nadu.

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