About B2U

B2U (“Battery 2nd Use”) Storage Solutions is a leading provider of large-scale energy storage systems using second-life electric vehicle (EV) batteries.  Our patented EV Pack Storage “EPS” technology enables EV battery packs to be utilized in large scale stationary storage without modification, virtually eliminating repurposing costs.  B2U’s energy storage projects have lower installed costs and achieve a superior Levelized Cost of Storage (LCOS) compared to similar sized systems.  Our projects are interconnected near load, providing electricity and grid services when they’re needed most.  

B2U was founded in 2019 by Freeman Hall and Mike Stern.  B2U was spun off from Solar Electric Solutions (SES), which developed 100MW of solar PV across 11 projects. 

B2U closed a Series A equity round in September 2021 led by Marubeni.

Operational since May 2020, the hybrid energy storage facility in Lancaster, CA now includes 25 MWh of storage capacity. At this site, we’ve configured 1,300 EV battery packs to charge and discharge efficiently while accounting for state of health variance.

US Patent No. 11,289,921, U.S. Patent Applications No. 17,675,456, 17,827,046