Tata Power Deploys 60 MWh Battery Storage Systems in Mumbai

Tata Power announced on Friday that it has installed 60 megawatt-hour (MWh) battery storage projects to improve power supply across three strategic locations in Mumbai.

According to a company statement, these installations are part of a broader initiative to deploy a total of 200 MWh of Battery Energy Storage Systems (BESS) across 10 strategic locations in Mumbai. The rollout follows approval received from the Maharashtra Electricity Regulatory Commission (MERC) in April 2025.

The newly operational BESS installations are located in Mahalaxmi, Saki, and Mankhurd. They are designed to strengthen Mumbai's electricity distribution infrastructure, which currently serves over 8 lakh consumers.

The company stated that the installations enhance the flexibility and resilience of Mumbai's power network. The system operates by storing electricity during lower-cost solar hours and discharging it during evening peak demand. This energy arbitrage capability supports efficient energy utilization, optimizes power purchase costs, and reduces dependence on expensive peak-hour electricity.

As part of the Tata Group, Tata Power maintains a diversified portfolio spanning the power value chain. The company's total operational and under-construction capacity has surpassed 26 GW. This figure includes approximately 17.7 GW of clean and green energy capacity, including projects under construction, and about 8.8 GW of thermal generation capacity.

Additionally, Tata Power holds a transmission and distribution footprint consisting of over 7,800 circuit kilometres of transmission lines, including pipeline projects. The company serves over 13 million customers across its distribution businesses, positioning it as one of India's largest private power distribution companies.

"The integration of battery energy storage systems into urban power distribution networks marks a practical approach to managing peak electricity demand and optimizing operational costs. For businesses and infrastructure developers in the energy sector, adopting energy arbitrage models helps balance intermittent renewable generation with steady consumption needs. As regulatory frameworks evolve to support large-scale storage projects, companies that efficiently manage grid flexibility will likely set operational benchmarks for the broader utilities market." — Dr. Shishir Gupta, Founder & CEO, StartupLanes