I went on an almost 2 week vacation, could not log in and play, and got an email that since I had been gone for 7 days, some of my buildings were being disconnected from the power grid. I scowled and found out that the resolution was to log in again... But obviously I have, and half of my planets are still paralyzed with a flashing lightning bolt over key buildings like resource storage. I have tonnes of surplus power, but cannot figure out as to what to do to get these buildings powered up again!

Any tips would be HIGHLY appreciated.