Delta Electronics India supplies 6.4 MWh battery storage system to Kolkata Metro

By Global Infrastructure Sherpa · Feb 26, 2026

Supply Agreement Storage announced Kolkata, India Feb 26, 2026

INR20M

Deal Value

6.4 MWh

Capacity

operating

Stage

Delta Electronics India has implemented a 6.4 MWh/4 MW battery energy storage system (BESS) for Metro Railway Kolkata at the Central station of the Blue Line, costing INR 20 crore.

Deal Analysis

Delta Electronics India's supply of a 6.4 MWh battery energy storage system (BESS) to Metro Railway Kolkata represents a significant step in integrating energy storage solutions within India's urban transportation infrastructure. The INR 20 crore project, located at the Central station of the Blue Line, aims to enhance the reliability and efficiency of the metro system's power supply. While the specific operational benefits are not detailed, BESS deployments in similar contexts typically provide backup power, grid stabilization, and potentially enable participation in demand response programs. This deal underscores the growing adoption of energy storage technologies in India's transportation sector. The involvement of Delta Electronics India, a known player in power electronics and energy management, lends credibility to the project. The deployment of a 6.4 MWh system, while not the largest BESS project globally, is a notable capacity for a metro rail application in India, signaling a commitment to modernizing infrastructure with advanced energy solutions. Further details regarding the specific technology used and the operational integration with the metro's power grid would provide a more comprehensive understanding of the project's impact.

Delta Electronics India supplies a 6.4 MWh BESS to Kolkata Metro.
The project cost is INR 20 crore.
This deployment highlights the growing trend of integrating energy storage in urban transportation.
The BESS aims to improve the reliability and efficiency of the metro's power supply.

Market Context: The energy storage market in India is experiencing rapid growth, driven by government initiatives promoting renewable energy integration and grid modernization. Battery storage is increasingly being deployed across various sectors, including transportation, utilities, and commercial & industrial applications, to enhance grid stability, reduce reliance on fossil fuels, and improve energy access.

Source Intelligence

KEY DETAILS

The project is expected to recover the investment cost in its lifetime of 13-15 years by energy saving due to power factor improvement and peak demand reduction. "The project was executed at a cost of INR 20 crore by Delta Electronics India and is expected to recover the investment cost in its lifetime of 13-15 years by energy saving due to power factor improvement and peak demand reduction."

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Deal Size

The project was executed at a cost of INR 20 crore by Delta Electronics India

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Capacity

Kolkata Metro has commissioned a 6.4 MWh/4 MW battery energy storage system (BESS) at the Central station of its Blue Line

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Location

Delta Electronics India, a power management and smart green solutions provider, has successfully implemented a 6.4 MWh/4 MW battery energy storage system (BESS) for Metro Railway Kolkata at the Central station of the Blue Line.

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Announcement

February 26, 2026

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COD

The now-operational system has been designed and delivered to enhance network preparedness against grid disturbances and power-related contingencies.

PARTIES MENTIONED IN SOURCE

Delta Electronics India seller

"Executed by Delta Electronics India, the system features all critical components designed and manufactured in-house, including the power conversion system, energy management system and battery racks."

Metro Railway Kolkata buyer

"Delta Electronics India, a power management and smart green solutions provider, has successfully implemented a 6.4 MWh/4 MW battery energy storage system (BESS) for Metro Railway Kolkata at the Central station of the Blue Line."

high quality Enriched Feb 26, 2026