I got the same problem. The moment i start the game the power grid goes down. And as you said for me it doesn't resume as normal after 10 minutes. Anyway more people reported this on the Discord. But some people seem to say it our own problem because our power grid isn't big enough, although i have played for 400 hours without these problems. And i can start the normal version just fine. I hope the don't gonna extend this power grid behavior to the main game, it would f_ it up in a big way for me.