360
Portugal Runs on 100% Renewables Dropping Consumer Electric Bills to Nearly Zero for 6 Days in a Row
(www.goodnewsnetwork.org)
This is a most excellent place for technology news and articles.
As I understand, this happens when renewables 'overproduce' and we need to get rid of the power somehow. People can gladly use as much power as they want in that case. Even if someone fills up batteries for free to later sell back into the grid when production normalizes, that is actually very much what we want. It just adds storage capacity and ensures prices will stay low for longer.