Thanks for the comments Scott
The only reason I didn't use your web site and gain £30, was that by phoning them myself I got the 19.60% discount applied to my current bill straightaway i.e. the huge winter one!!
However, if their new reduced rates don't come up to my expectations, I shall be using moneysupermarket.com very shortly.
Powergen were very candid when I phoned and said they were just waiting to see what reductions the other companies came up with.
Can I now call myself a Power Tart?
Regards
Christine