Tata Power has commissioned battery energy storage systems (BESS) with a combined capacity of 60 megawatt-hours (MWh) across three locations in Mumbai, strengthening the city’s electricity distribution network and improving its ability to manage peak power demand. The installations are operational at Mahalaxmi, Saki and Mankhurd, serving a distribution network that caters to more than eight lakh consumers.
The systems are designed to store electricity during periods of lower-cost solar power generation and release it during evening peak-demand hours. This approach is expected to optimise electricity procurement expenses, improve energy utilisation and reduce the need to purchase expensive power when consumption is high.
According to the company, the installations feature rapid response and high ramp-rate capabilities, allowing them to adjust to changing electricity requirements. Operating at approximately 1–1.5 cycles daily, the battery units will support load management and help balance demand across the distribution network.
The decentralised, grid-connected storage facilities also provide localised power storage and supply. Their black-start capability is expected to assist in restoring electricity services following disruptions in the power system.
The latest deployment is part of Tata Power’s broader programme to upgrade Mumbai’s electricity infrastructure. In April 2025, the company received approval from the Maharashtra Electricity Regulatory Commission (MERC) to install battery energy storage systems with a total capacity of 200 MWh at 10 strategic locations across the city.
The larger initiative is intended to improve grid reliability, manage fluctuations in peak demand and strengthen reactive power management. It is also expected to support quicker restoration of electricity supply to essential facilities, including hospitals, Metro networks, airports and data centres.
With the commissioning of the first 60 MWh across three sites, Tata Power has taken forward its energy storage programme in Mumbai. The deployment is expected to provide greater flexibility to the city’s electricity network while supporting more efficient power distribution as demand continues to grow.
Source: Energetica
