We know Bastian is a division of Toyota Ind.
https://www.bastiansolutions.com/solutions/technology/goods-to-person/autostore/
Bastian's robots come from Autostore
https://www.autostoresystem.com/system/robots/robot-b1
Like Raymond, Autostore has a branded li ion battery.
Autostore started marketing a go green solution a year after the Binghamton study re: green wh solution (not sure there is a tie in).
https://www.autostoresystem.com/insights/go-green-withautostore
The November 13 presenation mis-post was about the same time EFL announce they would be getting into ESS.
My guess, Bastian will be selling the ESS as part of their green WH build package. Bastian does promate Rayond products on their site.
Is Raymond/ Bastian connecting EFL with Autostore?