India commissions 120 MWp floating solar project on Omkareshwar Dam in MP

A large-scale 120 MWp floating solar photovoltaic power plant has been launched at Omkareshwar in Madhya Pradesh. The project was developed by Ciel & Terre Solar Private Limited in collaboration with L&T and SJVN Green Energy Limited. It will supply electricity to Rewa Ultra Mega Solar Limited (RUMSL).

The project sits on the Omkareshwar dam reservoir, using 210 acres of water surface—about 20 percent of the total 1,060 acres available. It consists of 14 floating islands, each with a capacity of 8.5 MWp. In total, 407,699 Hydrelio floats were used in a three-row setup, based on the aiR OPTIM 1400-3 model.

This floating solar plant is designed to take advantage of water’s cooling effect, which boosts energy efficiency. It is expected to reduce carbon emissions by over 113,000 tonnes each year. By using water instead of land, the project helps preserve agricultural and urban spaces while supporting India's renewable energy goals.

The project team used several new technologies to handle the tough terrain and climate at the dam site.

One major feature is the rock bolt anchoring system. This technique, developed by Ciel & Terre’s international R&D team, was specially designed to anchor floating solar platforms in hard rock conditions. It underwent several years of testing before being used in Omkareshwar.

Another key innovation is the floating inverter barge. Made from reinforced fiberglass polymer, the barge can carry more than 40 tonnes of electrical equipment. It’s approved for use in rivers and lakes and is 30 percent lighter than steel while being 50 percent stronger by weight. This reduces overall costs and improves durability.

The team also introduced a new spin welding technology to create leakproof floats. This method helps prevent cracks and water damage caused by extreme heat and thermal expansion.

The project team faced extreme challenges during construction. They worked through heavy rains, floods, strong winds, high temperatures, and rough surfaces. Despite the conditions, the team adapted quickly and completed the project on schedule.

Ciel & Terre India MD and CEO Deepak Ushadevi said the effort reflects strong teamwork and problem-solving.

“When we started this project, we knew the risks and challenges. But we also knew that the right team and tools could make it work,” he said. “This experience has made us stronger and ready to take on larger and more complex projects.”

This floating solar power plant is one of the largest of its kind in India. It shows how floating solar technology can be used to produce clean energy, reduce emissions, and save land.

The project could serve as a model for similar developments across the country, especially in areas with large water reservoirs and limited available land.

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