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India’s first solar microgrid with MW-scale hybrid energy storage

By District Energy posted 07-21-2021 11:13


pv magazine


Maharashtra-based Vision Mechatronics has delivered India’s first solar microgrid with megawatt (MW)-scale hybrid energy storage. The system is installed at Om Shanti Retreat Centre (ORC) in the Gurugram district of the Indian State of Haryana. 

In the system, 200kWp of solar panels have been connected to the energy storage combination of 614.4 kWh Lithium batteries with 480kWh tubular-gel lead-acid battery. The 1 MWh hybrid energy storage system is recharged by solar power throughout the day and used during power outages and at night hours. 

The hybrid battery storage system utilizes the center’s existing old lead-acid batteries with new lithium-ferro-phosphate (LFP) batteries, thus economically prolonging the backup duration to ensure zero-blackout scenarios.

Vision Mechatronics director Rashi Gupta told pv magazine, “Lithium energy storage beyond four hours is not economically viable as the system cost is prohibitory. So we combined it with a lead-acid battery to give a longer 18 hours of backup for smaller loads and about eight hours on median loads.”

The hybrid energy storage systems could allow commercial entities to reduce their capex investment in battery energy storage system by 35-40%.

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