My reaction to Ed Miliband's proposal to introduce price caps on energy was not, I'm sorry to say, something that was printable in a respectable place like this. So I'll spare you that and look instead at the basic contention that is being made.
Clearly, Miliboy must believe that the energy firms are ripping off consumers if he thinks that their prices need to be capped. If they were indeed ripping off consumers then we would see it in their profits. They would be making excess returns, profits well above their cost of capital and well above the rest of the market as well.