SPML Infra Limited has secured a major contract worth ₹1,128 crore (approximately USD 120 million) for the development of a large-scale Battery Energy Storage System (BESS) at NTPC Limited’s Barauni Thermal Power Station in Bihar. The project marks an important milestone for the company as it enters the large-scale grid battery energy storage segment for the first time.
Awarded by NTPC, the order is also considered one of the largest standalone Battery Energy Storage System projects awarded in India to date, reflecting the growing importance of energy storage in the country’s evolving power infrastructure.As part of the contract, SPML Infra will undertake the complete design, engineering, supply, construction, installation, testing, and commissioning of a 250 MW/1,000 MWh Battery Energy Storage System.
The project scope includes deployment of advanced 5 MWh DC battery containers equipped with Battery Management Systems (BMS) and Thermal Management Systems (TMS), along with associated infrastructure such as 33 kV panel boards, 220 kV DC and AC cables, switchyard systems, civil works, and other related components required for seamless operation.
The execution timeline for the project is set at 18 months, after which the company will also handle operations and maintenance for a period of 15 years.The upcoming energy storage facility is expected to play a critical role in strengthening grid stability and improving overall power management at the Barauni Thermal Power Station.
By integrating battery storage with existing thermal power infrastructure, the project will help manage peak electricity demand, enhance reliability of the power supply, and support the efficient integration of renewable energy into the grid. As India continues to increase its renewable energy capacity, large-scale battery storage systems are becoming increasingly essential for balancing power generation and consumption while ensuring uninterrupted electricity supply.
Commenting on the development, Abhinandan Sethi, Managing Director of SPML Infra Limited, stated that the project represents a defining step for the company’s expansion into the battery energy storage sector. He noted that energy storage is expected to play a major role in shaping India’s future energy landscape and added that the partnership with NTPC provides the company with an opportunity to contribute to building a stronger, more flexible, and future-ready power grid for the country.
The project also aligns with SPML Infra’s broader strategic plans to strengthen its presence in the clean energy and energy storage sector. The company has been actively focusing on developing advanced battery storage solutions in collaboration with its technology partner, Energy Vault. Through this initiative, SPML Infra aims to support India’s long-term energy transition goals and establish itself as a key participant in the country’s growing battery energy storage ecosystem.
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