Indexel, UNIGRID Partner To Deliver 50 MWh US Sodium-Ion Batteries To India

Rajasthan-based EPC firm Indexel Engineering has partnered with US battery technology company UNIGRID to deploy 50 MWh of advanced sodium-ion battery energy storage systems (BESS) in India.

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The systems will be installed across industrial hubs, renewable energy integration projects, and microgrid applications, aiming to provide cost-effective, thermally stable, and safe storage solutions. The first installations are expected to begin in the second half of 2025, with deployments planned in Rajasthan, Gujarat, Maharashtra, and other western states.

“We’re thrilled to have UNIGRID as our technology partner,” said Anushka Singhal, Energy Division Lead at Indexel. “Sodium-ion batteries are safer, cheaper, and better suited to Indian climatic conditions. This partnership accelerates our vision of resilient and clean energy for all.”

Unlike lithium-ion batteries, sodium-ion technology is non-flammable, performs well in extreme temperatures, and uses more abundant raw materials, making it a safer and more sustainable option, the company said.

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“India is one of the world’s most dynamic energy markets and offers many opportunities for new technology adoption,” said Darren H.S. Tan, Co-Founder and CEO of UNIGRID. “We are excited to partner with Indexel Engineering to expand the reach of our sodium-ion technology in this innovative region.”

About Indexel Engineering

Indexel Engineering is an EPC solutions provider with over 25 years of experience in automation, electrical, and industrial solutions. Indexel has launched IONS, its energy division focused on next-generation storage technologies.