SPML Infra Limited has secured a landmark ₹1,128 crore contract from NTPC Limited for the development of a 1 GWh Battery Energy Storage System (BESS) at NTPC’s Barauni Thermal Power Station in Bihar. The project marks SPML Infra’s first large-scale grid battery energy storage assignment and represents one of the largest single BESS contracts awarded in India to date.
The development signals a major strategic milestone for the company as it expands into next-generation energy infrastructure and strengthens its position within India’s rapidly evolving clean energy and grid modernization ecosystem. Under the contract, SPML Infra will execute the supply, civil works, erection, and integration of a 250 MW / 1,000 MWh Battery Energy Storage System comprising advanced 5 MWh DC battery containers equipped with Battery Management Systems and Thermal Management Systems.
The project scope also includes 33 kV panel boards, 220 kV DC and AC cabling infrastructure, switchyard development, and associated electrical systems and accessories. The execution timeline for the project is 18 months, followed by a long-term operations and maintenance commitment extending over 15 years.
The battery storage facility is expected to play a critical role in supporting grid stability, renewable energy integration, and peak power management by enabling efficient storage and dispatch of electricity within India’s expanding power network. Industry experts view battery energy storage systems as a key enabling technology for India’s clean energy transition, particularly as renewable power generation from solar and wind sources continues to scale rapidly. SPML Infra stated that the project aligns with the broader transformation of India’s energy sector toward more flexible, resilient, and intelligent electricity infrastructure capable of handling rising renewable energy penetration.
Abhinandan Sethi, Managing Director of SPML Infra Limited, described the order as a defining moment for the company’s energy transition strategy. He said energy storage infrastructure will play a decisive role in shaping India’s future power systems and emphasized the company’s intention to become a major participant in the country’s large-scale battery storage ecosystem.
Mr Sethi added that the collaboration with NTPC represents both an opportunity and a responsibility as India moves toward building a future-ready power grid capable of supporting industrial growth, energy security, and decarbonization goals. The project will also strengthen SPML Infra’s partnership with its technology collaborator Energy Vault as the company accelerates deployment of advanced battery storage technologies across India.
SPML Infra stated that energy storage has emerged as a core pillar of its long-term business strategy alongside its existing infrastructure operations spanning water management, power transmission, environmental engineering, and smart city development. The company has executed more than 700 infrastructure projects across India over the past four decades and remains one of the country’s leading infrastructure developers.
SPML Infra Limited is an Indian infrastructure company with more than 40 years of experience across the water, power, environment, and technology sectors. Headquartered in India and operating nationwide, the company has completed over 700 projects in areas including drinking water supply, wastewater treatment, sewerage systems, municipal solid waste management, power transmission and distribution, and smart city infrastructure.
SPML has played a major role in providing clean drinking water to over 50 million people across India. It is ranked 14th among the world’s top 50 private water companies by Global Water Intelligence (GWI), London, and recognized as one of India’s top 10 infrastructure companies. The company is listed on Indian stock exchanges and adheres to ESG compliance standards, contributing to sustainable and responsible infrastructure development across the country.
