Delta Electronics India has successfully implemented a 6.4 MWh / 4 MW Battery Energy Storage System (BESS) at the Central Sub-station of the Blue Line of Kolkata Metro. The system was inaugurated by Metro Railway Kolkata, marking a significant milestone in India’s urban transport infrastructure.
With this deployment, Kolkata Metro becomes the first underground metro railway in India to adopt a large-scale Battery Energy Storage System aimed at enhancing operational resilience and energy efficiency.
The BESS has been integrated at the Central Sub-station to strengthen preparedness against grid disturbances and power-related contingencies. The system is designed to provide immediate traction power support during grid failures or interruptions, enabling passenger trains to be safely hauled to the nearest station in the event of a power disruption.
Niranjan Nayak, Managing Director, Delta Electronics India, said the deployment reflects the company’s commitment to delivering safe, resilient, and energy-efficient power solutions for critical public infrastructure. He noted that uninterrupted power supply is particularly crucial for underground metro operations and emphasized the role of energy storage solutions in strengthening reliability across India’s urban transport networks.
The fully integrated BESS incorporates high-efficiency power electronics and Lithium Iron Phosphate (LFP) battery technology to ensure rapid response during grid disturbances. According to Rajesh Kaushal, Vice-President, Energy Infrastructure Business Group, Delta Electronics India, the system also supports peak power management and power factor improvement, contributing to sustained operational efficiency. He added that key components—including the Power Conditioning System (PCS), Energy Management System (EMS), and battery racks—have been designed, developed, and manufactured in-house, ensuring quality control, reliability, and long-term sustainability for safety-critical applications.
The project aligns with the National Programme on Advanced Chemistry Cell (ACC) Battery Storage approved by the Union Cabinet, supporting India’s broader efforts to strengthen energy storage infrastructure and promote sustainable electric mobility in public transport systems.
With the commissioning of this project, Kolkata Metro sets a new benchmark for large-scale battery storage adoption in metro rail networks, while Delta Electronics India reinforces its position in delivering energy-resilient solutions for high-density urban mobility infrastructure.
Discover more from SolarQuarter
Subscribe to get the latest posts sent to your email.
