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Tier 2 battery OEM Rept agrees 10GWh supply deal with Energy Vault

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Battery OEM Rept Battero, part of metals firm Tsingshan Industry, has tied up with Energy Vault a few weeks after it agreed to a smaller deal with Powin.

The Tier 2 lithium-ion battery manufacturer has agreed to supply 10GWh of battery solutions to Energy Vault, the company known for its gravity-based solution but which has increasingly pushed into battery storage the past year.

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The deliveries will start in the third quarter of 2023 and will see Rept initially deliver 280Ah batteries, followed later by its next-generation Wending Battery. In the deal announcement yesterday (22 May) Rept said the new product is designed for larger capacity and greater life cycle.

Akshay Ladwa, Chief Engineering Officer at Energy Vault, commented: “This partnership combines Rept Battero’s significant technical expertise and leadership in manufacturing safe, reliable and high performance liquid-cooled Li-ion battery packs which Energy Vault plants to use in its proprietary B-Vault BESS platform, one of the most advanced AC block designs in the industry that optimizes cost and maximizes reliability and uptime for our customers.”

At the end of April Rept Battero tied up with battery storage system integrator Powin for a smaller 3GWh deal.

Rept added that the products it is selling to Energy Vault have not only passed the latest version of UL1973, IEC62619, IEC63056 certification, but also successfully undergone full UL9540A testing.

Commenting on yesterday’s announcement, Dr. Cao Hui, Chairman & CEO of Rept Battero, said:

“The Energy Vault team has proven to be the most customer-centric and rapidly growing energy storage company in the industry. We are very excited about this partnership because it will enable the exponential growth that we were aiming for in the stationary energy storage sector.”

“We are confident in Energy Vault’s ability to win the largest projects worldwide, supporting our growth plan. We are pleased to leverage Energy Vault’s expertise to convert our high-quality battery technology to bespoke solutions for the largest customers worldwide.”

Rept is currently ranked as a Tier 2 supplier in Benchmark Mineral Intelligence’s widely-cited Tier system. The research firm designates CATL, Envision, BYD, LG Energy Solution, Panasonic, Samsung, SK Innovation and, as of mid-2022, Northvolt and Sunwoda as its Tier 1 suppliers.

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