According to this recent study and article, the PS3 can consume more energy than five refrigerators. I don’t know if the study included fridges with ice makers and/or water in the door and I’m certain it didn’t include LG’s dual equipped HD fridge.

The PlayStation 3: Blu-ray player, next-gen game machine, multimedia hub–and power guzzler. According to a report by the Australian Consumers’ Association’s Choice publication, leaving your PS3 on when you’re not gaming can cost you A$250 ($239) a year in electricity bills.