Peak Energy just switched on a 3.5 MWh sodium-ion battery, the largest sodium-ion energy storage project developed in the US. The system is the first of its kind at grid scale, and may eventually be a game-changer for delivering affordable energy in the US.
Sodium-ion batteries work well in hot or cold weather without auxiliary cooling systems. That makes them cheaper and easier to maintain, especially for utility-scale projects. They also use more abundant materials. The US holds the world’s largest soda ash reserves, a key sodium-ion ingredient, and the whole raw material supply chain can be sourced domestically or from allied countries.
The Burlingame, California-based energy storage company’s technology is designed to slash lifetime project costs, which could make a real difference as electric bills keep rising nationwide. With US household energy costs projected to climb as much as 18% in the next few years, utilities are looking for cheaper ways to meet demand. Peak Energy’s design eliminates active cooling, reduces moving parts, and cuts battery degradation by 33% over a 20-year lifespan — saving more than $100 million over a project’s lifetime.
“Storage is critical to solving America’s dual energy crises of affordability and availability,” said Landon Mossburg, Peak Energy’s CEO and cofounder. “With the lowest operating cost of any storage system in the market today, Peak Energy is proud to have developed a ready-to-deploy answer to energy affordability.”
Top comment by Grant
Important to know that they are non-flammable as well. They do not use rare earth metals (mostly) in their construction also. Too heavy and bulky for vehicles.
These are important facts that should be included in this article.
This may be the near future for energy storage batteries.
Peak Energy’s sodium-ion phosphate pyrophosphate (NFPP) battery storage system was unveiled in July and is now running at the Solar Technology Acceleration Center (SolarTac) in Watkins, Colorado. It’s being operated in partnership with nine utilities and independent power producers. Peak Energy will gather real-world data on the battery’s performance and share it across participating utilities. Commercial-scale projects are expected to launch in 2027.
Editor’s correction: The story previously stated that this project is the largest energy storage project developed in the US. It’s actually the largest sodium-ion energy storage project developed in the US. Apologies for the error.
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