Mercedes strikes second-life EV battery pact with Canadian startup Moment Energy

A Mercedes-Benz Group subsidiary that focuses on electric vehicle battery storage has reached an agreement with a Canadian startup to repurpose partly-spent EV batteries.

Mercedes-Benz Energy will supply used batteries from the automaker’s electric vehicles to Vancouver-based Moment Energy Inc., which will convert them to modules that provide rechargeable power to commercial and industrial buildings.

A major challenge of electric vehicles is what to do with the batteries once the car ends its useful life. Those supplied to Moment Energy by Mercedes-Benz will have at least 70 per cent of their capacity. That’s enough for energy-storage systems that can be deployed to reduce consumption at commercial sites.

“The scalability of the storage systems basically enables a very wide range of customers,” Gordon Gassmann, chief executive officer of Mercedes-Benz Energy, said in an email. “Since the market is still very young, it potentially offers a wide range of opportunities.”

The residual energy capacity that can be supplied from second-life batteries is expected to surge, from seven gigawatt hours to 276 Gwh by 2035, as the first generation of electric vehicles is replaced, according to Bloomberg New Energy Finance (NEF) estimates. 

The modules created by Moment Energy will provide power for seven to 10 years, said Sumreen Rattan, co-founder and chief operating officer of the company. The company is in the process of building relationships which recyclers that could potentially salvage materials after that. 

“We’ve deployed projects using second-life battery systems already in the field. So we’ve been getting a lot of data, a lot of positive results from our pilots that are out and deployed,” Rattan said in an interview. 

Moment Energy, which in 2020 reached a similar agreement with Nissan Motor Co.’s unit in North America, is in the process of raising between $15 million and $20 million in series A financing, she said. Last year, the company raised $3.5 million of seed capital in a round led by Version One Ventures. 

Royal Bank of Canada’s venture capital platform is also providing $1 million in debt financing, Rattan said. 

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