DENVER, July 31, 2025 /PRNewswire/ -- Peak Energy, a U. -based company developing low-cost, giga-scale energy storage technology for the grid, today announced the launch and shipment of its sodium-ion battery energy storage system (ESS) that delivers a patent-pending passive cooling design to dramatically reduce lifetime energy costs.
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What is peak energy?
Peak Energy is creating low-cost, giga-scale energy storage technology for the grid. The Electric Power Research Institute (EPRI) reports that 89% of battery storage system fires in the US have a primary cause that Peak Energy eliminates with this milestone.
Will peak energy commercialize sodium-ion battery storage?
Peak Energy's pilot marks a significant first step in commercializing sodium-ion battery storage in the United States and unlocks nearly 1GWh of future commercial contracts currently under negotiation.
Is peak energy ESS a breakthrough in energy storage?
Peak Energy has conducted extensive performance testing of its ESS, where the results indicate record-level cost-savings and reliability for the industry. This includes: "This isn't just another product launch – it's a breakthrough in energy storage," said Paul Durkee, VP of Engineering at Peak Energy.
Where is peak energy based?
Launching the US's first grid-scale sodium-ion battery comes less than two years after Peak Energy came out of stealth mode and just a year after it closed a $55 million Series A round. Correction: The post initially stated that Peak Energy was based in New York. It's now been corrected to California. Apologies for the error.
Does peak energy have a new battery?
This disclosure comes less than two years after the company's 2023 secret debut and only one year after Peak funded its $55M Series A. Peak Energy launches the first U.S. grid-scale sodium-ion battery with passive cooling, cutting lifetime storage costs significantly.
Does peak energy have a grid-scale battery supply chain?
With the construction of its first U.S. cell facility scheduled to begin production in 2026, Peak Energy is currently on pace to meet its pledge to establish grid scale battery supply chains. This disclosure comes less than two years after the company's 2023 secret debut and only one year after Peak funded its $55M Series A.