Tamil Nadu Newsprint and Papers (TNPL) has invited bids to install 2.2 MW of grid-connected captive rooftop solar projects under the CAPEX model atop its buildings.

The project should be completed 90 days from the date of site clearance. The developer must provide comprehensive operational and maintenance for five years.

The last day to submit the bids is May 31, 2023.

The first system of 1.1 MW must be set up in TNPL’s Karur paper plant, which has an average solar irradiance of 5.60 W/sq.m. The second one will be installed in the Trichy plant, which has an average solar irradiance of 5.56 W/sq.m.

The comprehensive maintenance must cover preventive maintenance service, troubleshooting visits, and replacement of spares required for the efficient running of the project.

The power generated from the system will be integrated with the existing electrical system of TNPL with the necessary inter-phasing equipment.

Separate metering arrangements must be arranged for each rooftop system, and energy meters must be installed for each building.

The DC power generated from the system will be converted into three-phase AC power using inverters, and AC power at 415V level will be transmitted to the LT control panels available in the same building.

Any surplus solar power will be transmitted to the nearest LT loads to minimize line losses.

The solar modules used for the project must be from the Ministry of New and Renewable Energy’s Approved List of Models and Manufacturers and have a minimum capacity of 250 Wp. The module efficiency should also be at least 16%.

The Tamil Nadu Cooperative Milk Producers’ Federation recently invited bids to procure 30 MW of solar, wind, or surplus power from producers through an open access arrangement for five years.

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