Tata Power’s solar subsidiary, TP Solar Ltd, has inaugurated a solar manufacturing facility with a production capacity of 4.3 GW in Tirunelveli, Tamil Nadu. The facility, covering 317 acres, was established with an investment of approximately INR 43 billion. It is equipped with TOPCon and Mono PERC technologies for high-efficiency solar cell and module production. The plant commenced module production in October 2023 and began cell production in September 2024. As of early 2025, it had produced 1.25 GW of solar modules.
The facility currently operates with a 2 GW solar cell production line, with plans to add the remaining 2 GW capacity over the next few months. Tata Power has indicated that the plant’s capacity could potentially be expanded to over 8 GW in the future.
The plant employs a workforce comprising 80% women. To support its energy needs, Tata Power Renewable Energy Ltd is developing a 41 MW captive solar power plant in Thoothukudi, Tamil Nadu, expected to generate 101 million units of electricity annually and offset approximately 72,000 metric tonnes of CO₂ emissions.
The modules produced at this facility are part of the Government of India’s Approved List of Models and Manufacturers (ALMM). Tata Power anticipates that its solar cells will also be included in the ALMM list upon its release.
Tata Power has stated that the facility’s production for the next 12 to 16 months is already allocated to domestic projects. This aligns with India’s policy mandating the use of locally-made solar cells in clean energy projects starting June 2026.
In addition to the Tirunelveli plant, Tata Power operates a solar manufacturing facility in Bengaluru, Karnataka, established in 1992, with a production capacity of 682 MW for solar modules and 530 MW for solar cells. To date, it has supplied a total of 3.73 GW of solar modules and 2.26 GW of solar cells.
Tata Power Company Limited is involved in power generation, transmission, distribution, and renewable energy projects across India. The company aims to increase its renewable energy portfolio from 41% to 70% by 2030 and has announced plans to invest approximately INR 1.25 trillion between FY26 and FY30 to double its operational capacity from 15.6 GW to 32 GW.