They happen about once a year or so, here in the country/outside London world. Always a bit inconvenient - last night I could not sleep and was reading/watching telly when the world went a bit black. We're relatively well organised with candles to hand, lighters, a torch and a battery lantern. Trouble was the renewable energy torch decided last night it would take its kinetic powered status a little far and only work when you shook it. Leading to some shaky lighting.
Still, it only lasted about half an hour, and is fairly dramatic as a little reminder we're not in town now. Of course we are in town, local town so also bit confusing as to why Hastings itself is in 1970. And we're talking about bringing trams back, which I'm delighted by. Used to adore Croydon's trams and getting them to work.