Delhi’s New Battery Storage Systems to Revolutionize Power Supply Published By Anupam Nath Delhi is set to witness a major transformation in its electricity supply with the introduction of four new grid-scale battery energy storage systems. These systems, planned for Malviya Nagar, Matiala, Dwarka, and Goyla Khurd, will collectively add a storage capacity of 55.5 MW, aiming to ensure uninterrupted power supply during peak demand hours.The Delhi Electricity Regulatory Commission (DERC) has given its in-principle approval to BSES Rajdhani Power Limited (BRPL) for this ambitious project. BRPL, a joint venture between Reliance Infrastructure and the Delhi government, supplies electricity to over 32 lakh consumers across south and southwest Delhi, covering more than 700 sq km and serving over 1 crore residents.The new battery storage systems will use lithium iron phosphate (LFP) batteries, known for their safety, thermal stability, and long lifespan. These batteries will be charged during off-peak hours using surplus or low-cost electricity and discharged during high-demand periods. This approach will not only reduce reliance on expensive power purchases but also provide backup during faults or planned maintenance.One of the primary benefits of these storage systems is their ability to enhance network utilization and relieve stress on congested feeders. By storing electricity in rechargeable batteries, the systems can release power when demand rises or generation dips, ensuring a stable and reliable supply. This is especially crucial for cities like Delhi, where fluctuating demand and space constraints limit the expansion of conventional infrastructure.The integration of battery storage systems also supports the broader strategy of integrating renewable energy sources such as solar and wind power. As Delhi continues to expand its renewable energy capacity, these storage systems will play a vital role in balancing supply and demand, making the grid more resilient and sustainable.The first such storage system was commissioned at Kilokari in May, providing up to four hours of power daily—two hours each in the day and at night. The success of this pilot project has paved the way for the expansion of similar systems across the city.With these advancements, Delhi is moving towards a smarter, more efficient, and sustainable power grid. The new battery storage systems will not only improve the reliability of electricity supply but also contribute to the city’s efforts to reduce carbon emissions and promote clean energy.
