Battery power storage systems advance Storing solar power for later use is evolving.

Battery power storage systems advance Storing solar power for later use is evolving. This may help resolve some power issues in Puerto Rico and other islands with relatively small grids (when they're working).

#EnvironmentalPolitics
https://pv-magazine-usa.com/2018/06/28/elon-musks-unprecedented-solarstorage-vision-for-puerto-rico-moves-forward/