RE:RE:50 HzMy son worked for Vestas for many years , I should have waited to speak to him before repeating what I read elsewhere. I dont doubt you are right nonetheless . I know that Hydro Quebec transmits on DC and then converts after stepping down. Perhaps the problem has arisen in Europe due to a panopoly of different systems trying to mesh together and failing. BTW debating energy policy at family re-unions over brandy and cigars after dinner is an activity that I sincerely miss as Covid has put an end to that. Looking forward to the end of this terrible pandemic.