Portugal Runs on 100% Renewables Dropping Consumer Electric Bills to Nearly Zero for 6 Days in a Row::In total, there were 149 hours of total renewables generation, 95 of which saw the Portuguese grid exporting to Spain
I'm going to go ahead and assume that the article means it comes at zero cost to Portugal, as a country, thus not having to import it. It would be fairly misleading though.
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.
btw, shit is getting worse for most really, really fast, in part due to the gentrification and deluge of new residents with wallets unfathomably heavier coming from Germany, France, UK and USA to the new Florida of Europe
Yet... the electricity bill has tripled since July, as new taxes were introduced to fuck you over. Consumer bills are definitely not dropping and definitely not near zero.