Tata Power has partnered with Norway-based renewable energy technology company Ocean Sun to evaluate membrane-based floating solar technology in India, starting with a ~300 kWp pilot project at Tata Power’s Mulshi reservoir in Maharashtra.
The collaboration agreement was signed on the sidelines of the second India-EFTA Prosperity Summit. The pilot will assess Ocean Sun’s proprietary floating solar technology under Indian operating conditions, with the companies evaluating its performance, reliability, cost competitiveness and scalability.
The project is also expected to provide operational insights that can inform potential larger-scale deployments of the technology in India.
Pilot evaluation
Tata Power will assess the ~300 kWp installation against conventional floating solar systems across energy generation, capacity utilisation factor (CUF), installation methodology and timelines, reliability, operations and maintenance (O&M) requirements, capital costs and overall commercial viability.
India has significant potential for floating solar deployment. According to estimates by the National Institute of Solar Energy (NISE), the country has more than 102 GWp of floating solar potential. The technology could therefore complement existing ground-mounted and rooftop solar capacity, particularly where suitable water bodies are available.
Dr Praveer Sinha, CEO and Managing Director, Tata Power, said: “At Tata Power, innovation is central to accelerating India’s clean energy transition. Our collaboration with Ocean Sun reflects our commitment to bringing advanced global technologies to India and evaluating their potential in real-world conditions. Through this floating solar pilot, we aim to generate valuable operating insights and assess its potential to deliver reliable, scalable and cost-effective clean power solutions.”
Membrane technology
Ocean Sun’s technology differs from conventional floating photovoltaic (PV) systems, which generally use interconnected pontoon structures to support solar modules. The Norwegian company’s system mounts PV modules on a thin, hydro-elastic membrane that floats directly on the water surface.
The membrane-based design is intended to reduce structural requirements and could simplify transportation and installation compared with conventional floating structures. The proximity of the PV modules to the water surface may also provide a cooling effect, potentially supporting higher generation performance.
Kristian Tørvold, CEO, Ocean Sun, said: “India is one of the world’s most attractive floating solar markets, but it is also a large and complex market where local execution capabilities are essential. Tata Power brings the experience, capabilities and market understanding required to navigate that complexity. We are therefore particularly pleased to establish this collaboration and to work together on the floating solar project.”
Floating solar can enable renewable generation from water bodies while reducing the need for land. Such projects may also provide additional benefits, including reduced water evaporation and potentially improved PV performance.
The featured photograph (credit: Ocean Sun) is for representational purposes only.
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