Key Takeaways
- • Peak Energy closed an oversubscribed $108 million Series B financing round, led by General Motors Ventures, according to a Massinvestor announcement dated October 21, 2026.
- • Participants in the round included Maverick Silicon, Infinite Capital, Eclipse, Xora Innovation, and LG Technology Ventures.
- • The company, based in Burlingame, California, develops passively cooled sodium-ion energy storage systems for the grid.
- • Proceeds will fund domestic manufacturing scale-up, fulfillment of more than $1 billion in existing customer orders, and a launch into the data center market.
Summary
Peak Energy, a Burlingame, California-based developer of passively cooled sodium-ion energy storage systems for the electrical grid, has announced the closing of an oversubscribed Series B financing round totaling $108 million. The round was led by General Motors Ventures, with participation from Maverick Silicon, Infinite Capital, Eclipse, Xora Innovation, and LG Technology Ventures, according to the company's announcement as reported by Massinvestor.
The company said the new capital will allow it to scale domestic manufacturing, fulfill more than $1 billion in existing customer orders, and launch its product into the data center market. The company frames data centers as a segment where access to power has become the primary constraint on growth, positioning its storage systems as a response to that bottleneck.
Additional outlets, including FinSMEs, also reported the $108 million Series B round. The available coverage does not provide a valuation, a detailed breakdown of individual investor allocations, or further financial metrics for the round.
The company said the new capital will allow it to scale domestic manufacturing, fulfill more than $1 billion in existing customer orders, and launch its product into the data center market. The company frames data centers as a segment where access to power has become the primary constraint on growth, positioning its storage systems as a response to that bottleneck.
Additional outlets, including FinSMEs, also reported the $108 million Series B round. The available coverage does not provide a valuation, a detailed breakdown of individual investor allocations, or further financial metrics for the round.
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