#United States #Sodium-ion #Burlingame #Peak Energy #RWE Americas

Peak Energy Partners with RWE Americas to Deploy Sodium-Ion Battery Storage

March 11, 2026, Burlingame, CA - Peak Energy, a pioneering U.S.-based firm specializing in advanced energy storage technologies, has made significant strides by signing an agreement with RWE Americas, a leading global energy provider with a considerable operational footprint in the United States. This collaboration marks a notable milestone as it introduces the first deployment of sodium-ion battery technology on the Midcontinent Independent System Operator (MISO) network, aimed at addressing the pressing energy storage needs in the region.

The initial phase of this ambitious project will unfold in Eastern Wisconsin, where Peak Energy's cutting-edge, passively cooled sodium-ion batteries are expected to be piloted. This venture positions RWE Americas as a forerunner in the move toward next-generation, financially efficient energy storage solutions, a critical step in mitigating the growing energy cost crisis plaguing the nation.

Landon Mossburg, CEO of Peak Energy, stated, "Energy storage is central to providing reliable, dispatchable energy on demand. Our innovations, enabled by sodium-ion batteries, significantly lower storage costs, facilitating more affordable energy delivery to Wisconsin residents." This commitment to reducing the cost per electron aligns with Peak Energy's vision for a sustainable energy future and positions the company as a vital player in the transformation of energy storage.

Advantages of Sodium-Ion Battery Systems

The sodium-ion battery system developed by Peak Energy boasts exceptional stability and performance across a broad temperature range, eliminating many of the operational pitfalls associated with traditional lithium-ion batteries. By harnessing highly stable NFPP battery cells, Peak offers a solution that not only minimizes routine maintenance but also effectively removes the need for energy-draining cooling systems. Additionally, this innovative design addresses the issue of "overbuild"—the surplus storage capacity typically required to counteract gradual loss of capacity over time.

With these advancements, Peak's energy storage technology is set to slash lifetime energy storage costs by approximately $70 per kilowatt-hour. This drastic reduction is equivalent to nearly half the present pricing of traditional battery systems, positioning Peak as a leader in efficient energy storage.

Addressing Energy Demand in the MISO Region

As part of the broader MISO region, Wisconsin is currently grappling with unprecedented energy demand growth and rapid cost increases, coupled with a significant lack of energy storage infrastructure. A recent report from Aurora Energy Research suggested that the addition of 10 gigawatt-hours (GWh) of battery storage over the coming decade could potentially reduce MISO system costs by as much as $27 billion in comparison to existing scenarios. Moreover, the implementation of Peak Energy's GS1.1 systems could result in over 25% savings relative to conventional lithium-ion options due to their passive design, which drives down operational expenses and lifetime maintenance needs.

The introduction of battery storage systems offers the promise of enhanced reliability and decreased consumer costs by effectively storing surplus energy during periods of low demand and supplying it back to the grid during peak times. This capability not only limits dependency on expensive energy spot markets but also alleviates the necessity for new power generation technologies, maximizing the efficient use of intermittent energy sources.

Looking Ahead

Peak Energy, established in 2023 by veterans from renowned firms like Tesla and Apple, is firmly focused on securing America's energy economy through low-cost energy storage innovation. With a clear mission to position the U.S. as a global leader in the battery market, Peak's partnership with RWE Americas is poised to make significant contributions towards establishing a more sustainable energy future.

For more information about Peak Energy's revolutionary energy storage solutions, visit www.peakenergy.com.