BURLINGAME, Calif., March 12, 2026 — Peak Energy, a U.S.-based firm that develops low-cost, giga – scale energy storage technology for the grid, announced today an agreement with RWE Americas, a leading global energy company with around 13 GW of operating assets in the U.S., to pilot Peak Energy’s proprietary passively cooled sodium – ion grid storage battery technology. The pilot project, which will be deployed in Eastern Wisconsin at the RWE lab, makes RWE Americas a pioneer in bringing next – generation, capital – efficient energy storage to the grid if it is fully adopted. Designed to maximize sodium – ion’s stability and thermal advantages, Peak Energy’s battery storage system significantly cuts the cost of energy storage and lessens the need for costly new power plants, directly tackling the energy cost crisis in America.
“Energy storage is crucial for providing dispatchable, reliable energy on demand. Peak’s innovations, made possible by sodium – ion batteries, greatly reduce energy storage costs,” said Landon Mossburg, Chief Executive Officer of Peak Energy. “Delivering the lowest – cost electron is Peak Energy’s guiding principle, and we’re proud to work with RWE Americas to operate our cost – optimized batteries.”
Peak’s proprietary energy storage system allows for safe operation across a wide temperature range without a decline in performance, significantly changing the economics of energy storage. Relying on highly stable and better – performing sodium – ion (NFPP) battery cells, Peak’s energy storage system gets rid of costly routine maintenance, removes energy – wasting cooling systems, and reduces “overbuild” – the amount of extra storage needed to account for capacity degradation over time. Through these improvements, Peak’s energy storage systems reduce the lifetime cost of stored energy by an average of $70/kWh, which is about half of the total price of a battery system today.
Similar to most of the United States, the MISO region – which includes Wisconsin – is facing unprecedented growth in energy demand, rapid cost increases, and a shortage of energy storage capacity. Last year, a report from Aurora Energy Research concluded that installing 10 GWh of battery storage capacity over the next decade could reduce total MISO system costs by up to $27 billion compared to a baseline scenario. Deploying the same capacity using Peak’s GS1.1 systems would reduce total storage system costs by more than 25% compared to conventional lithium – ion solutions, thanks to Peak’s passive design that lowers operating costs and reduces lifetime maintenance. Batteries on the grid enhance overall reliability and reduce consumer costs by storing surplus energy during low – demand periods and releasing it to the grid during peak demand, reducing reliance on expensive energy spot markets. This decreases the need for costly new generation technologies and maximizes the dispatchable use of economically efficient intermittent energy generation sources.
To learn more about Peak’s revolutionary battery storage solutions, visit www.peakenergy.com.
About Peak Energy
Established in 2023, Peak Energy is a U.S. – based company that develops low – cost, giga – scale energy storage technology to safeguard America’s energy economy. Founded by industry veterans from Tesla, Enovix, and Apple, the company aims to significantly lower the cost of energy storage and establish the U.S. as a global leader in the battery market. For more information, visit www.peakenergy.com.
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SOURCE Peak Energy Technologies