GM Energy bets on sodium-ion batteries and V2G tech to tackle AI's power crunch

GM Energy Targets Booming Energy Storage Market

General Motors is positioning itself as a serious contender in the rapidly expanding energy storage market, announcing a dual strategy that combines new battery chemistry development with vehicle-to-grid technology rollout 1

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. At a San Francisco event this week, GM Energy revealed plans to develop sodium-ion batteries specifically engineered for grid-scale applications, while simultaneously activating V2G support for its existing fleet of over 250,000 bidirectional EVs 4

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. The moves come as automakers entering energy market seek new revenue streams amid cooling EV sales, with the stationary battery market doubling in the past two years 2

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New Battery Chemistry Addresses AI Data Centers Energy Demand

GM Energy partnered with New York-based startup Peak Energy to develop next-generation sodium-ion batteries purpose-built for energy storage systems 3

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. Unlike lithium-ion batteries used in EVs, these sodium pyrophosphate cells prioritize longevity, high cycle life, and cost efficiency over weight and size constraints. Kurt Kelty, GM's vice president of battery and sustainability, told the press that the new chemistry should be 20 percent less expensive to maintain than currently available systems 1

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. The timing aligns with surging electricity needs as AI data centers energy demand is expected to nearly triple by the end of the decade 2

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The sodium-ion batteries offer several advantages for grid resiliency applications. They use abundant, inexpensive materials not dominated by Chinese supply chains, don't require active cooling systems, and can withstand many more charge-discharge cycles than lithium-ion batteries 2

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. "It gives us a path towards supply chain resilience and low-cost materials," Andy Oury, business planning manager at GM, explained. The first GM cells are expected to enter trial production at the company's Battery Cell Development Center in 2028 3

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Vehicle-to-Grid Technology Activates Across Quarter Million EVs

GM Energy is releasing firmware updates to enable vehicle-to-grid technology for current customers, transforming bidirectional EVs into flexible energy assets that can send power back during peak demand periods 4

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. The automaker has over 250,000 EVs on the road supporting bidirectional charging across Chevy, Cadillac, and GMC brands. Their combined battery capacity could theoretically power 120,000 homes for an entire week 4

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Launch partners include PG&E in California and DTE Energy in Michigan. By 2030, PG&E and GM are targeting 52,000 vehicles in the utility's operating area supporting the grid with V2G support—enough to power every home in San Francisco for half a day 1

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. "This is really where EVs start to matter, even for those that don't own them," Wade Shaffer, GM Energy Vice President, told attendees. PG&E CEO Patty Poppe emphasized the urgency: "Our grid desperately needs EVs, particularly bidirectional EVs that we can optimize and contribute to the grid" 1

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Automakers Compete for Energy Storage Profits

GM joins Tesla and Ford in pursuing the lucrative energy storage sector as EV growth stagnates. Tesla captured 82% of the 57 gigawatt-hours installed last year, with gross profits around 30%—double its EV margins 2

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. Ford's stock jumped 20% after announcing Ford Energy in May, with Morgan Stanley estimating the subsidiary could generate $500 million to $600 million in annual earnings at scale 5

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. Despite incentives being reduced, the Solar Energy Industries Association expects annual installations to exceed 110 GWh per year by 2030 2

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GM's strategy differs from competitors by developing dedicated battery chemistry rather than repurposing EV production capacity. The automaker remains bullish on electrification and doesn't want to reassign lithium-ion manufacturing if EV demand rebounds 2

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. GM is also expanding partnerships with Redwood Materials for second-life EV batteries and working with LG Energy Solution to supply lithium iron phosphate cells for interim projects 3

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. Kelty emphasized GM's technological independence: "We are not licensing somebody else's technology from China," in a pointed reference to Ford's CATL partnership 5

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