As always, this is the electrical grid only, not all the other stuff a nation will need various type of energy for. Still it's a major stepping stone. Back in

As always, this is the electrical grid only, not all the other stuff a nation will need various type of energy for. Still it's a major stepping stone. Back in 2006/2007 I had a job as a consultant for an energy trading company and it was huge the first day when the entire country ran solely on wind power. If was during the Christmas holidays, so less power was used overall, but still it was absolutely a huge deal for us. After that if has just been more and more days on renewable energy powering the majority of grid and more and more frequently 100% renewable. I get the problem that it's only for a short time and then Portugal is back at emitting CO2, but it also does mean that they are moving in the right direction and it's only going to get better.