Tesla is deploying its 3 MWh Megapack as a mobile Super charger as a back up when required. https://ww.electrek.co/2019/11/29/tesla-mobile-supercharger-megapack/ No more diesel generators! Now if they would only pull the trailer with one of these: https://en.wikipedia.org/wiki/Tesla_Semi#/media/File:The_Tesla_Semi_Truck_(40705940423).jpg