When I was talking to the kitchen guy in IKEA he told me the energy ratings for kitchen appliances (eg dishwashers) have been rejigged as they were getting into the infinite A++++++ territory. I'm looking at new dishwashers and some are still A+ while others from the same manufacturer which seem very similar are E 
. Can anyone shed any light? I must be googling the wrong things because I'm not getting much useful info.