Tata Power launches India’s largest floating solar project – pv magazine India

Tata Power today announced that its solar manufacturing arm and EPC Tata Power Solar has commissioned India’s largest floating solar power project at Kayamkulam, Kerala. The solar power plant, with an installed capacity of 101.6 MWp, is built on a 350-acre body of water in the backwaters of Kerala. It is also India’s first floating solar power plant to benefit from a power purchase agreement. The plant will supply the generated electricity to the Kerala State Electricity Board (KSEB).

“This facility was completed on schedule, despite the arduous challenges of varying water depths, high tides and severe water salinity issues experienced throughout the construction life of the project,” said Tata Power.

Tata Power said its project implementation team built a scaffolding platform on the water body to float the entire solar power plant on the water. The plant has a 5 MW inverter on a floating platform. The whole project is anchored to the Kerala backwater waterbed with the help of 134 cast pile foundations which are drilled to a depth of 20 meters under water to support the central monitoring and control stations and the 33/220 kV switchyard. This was all done by dredging the soil layers under water, where the high water table was also a deterrent, the company added.

The entire array including floats and solar panel modules had to be towed 3 kilometers on a national waterway connected to the sea, 15 meters deep, exposing the solar modules to high winds and gushing tides often reaching a height of about 3.5 meters. To operationalize the project, Tata Power Solar’s execution team was able to successfully synchronize the 33/220 kV air-insulated substation with the existing 220 kV gas-insulated substation.

With the commissioning of this project, Tata Power Solar’s total utility scale solar project portfolio has reached 9.7 GWp.

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