It's an energy company in the UK. They tend (or tended) to sponsor things like the weather or the news. On a TV show called Mock the Week (made by the same people as Whose Line and has similar content), they have a section called "Things We'd Like to See" where the players have to come up with content for something they'd like to see based on the question, such as "things you won't find in a Harry Potter book" or "things you don't want to hear at the hospital". One of the players said for a section called "things you won't find in the Bible" 'And the Lord said let there be light... Sponsered by Powergen!". There are other quotes using the same gag, but that's the one that stands out to me. When the TF let us choose the tags we got at the beginning of the year, I got it
I always seem to find her laying in the strangest places. In fact, she fell asleep next to my nan on her pillow in bed a couple of hours ago. That was funny.