We talk to Elli Group, the EV infrastructure and utility arm of automotive OEM Volkswagen, about its new second life energy storage and energy trading ventures.
Ben Lincoln, energy expert at intellectual property law firm Potter Clarkson, looks at patent filing activity in energy storage technologies outside the world of electrochemical batteries.
Closed-loop pumped hydro energy storage (PHES) has fewer emissions associated with its development, construction and use than other leading options for large-scale energy storage.
Germany and US residential battery storage and VPP provider sonnen’s network of batteries in Germany has reached 250MWh, and will hit 1GWh in the next few years, it said.