Out of interest, thought I'd check out the HUKD link.
Sorry but what a con.
It's telling me I can save £30+ pounds if I switch to a deal with higher unit rates! oO
I really really dislike that you cannot get a straightforward table with unit rates on the websites of most Utility Companies. Instead they lure you in by asking to enter your details. They always overestimate what you could be saving, in my experience. I always try to get the actual unit rates and standing charges and do the sums myself.
And that is how I am on the best tariffs. Because I did the sums myself and didnt believe the hardsell.