The latest Investing Matters Podcast with Jean Roche, Co-Manager of Schroder UK Mid Cap Investment Trust has just been released. Listen here.
https://www.pv-magazine.com/2021/01/20/the-best-redox-flow-battery-tech/
Unfortunately they will be lithium batteries!!
https://www.solarpowerworldonline.com/2020/12/pge-announces-387-mw-1548-mwh-of-energy-storage-capacity-in-latest-project-announcement/