I did a price comparison on money saving expert and Home Energy came up as being able to save me £750 per year on my Energy bills. I am currently with Octopus and at the moment am paying £330 per month. Usage last month was £260, mainly due to charging an electric car at home.
I have initiated a switch and am crossing my fingers everything goes ok as they seem to be a smaller newer utility company. Their prices are 5p cheaper per kwh for electricity than Octopus and the standing charges for both are also cheaper. Gas prices are a little closer but still cheaper.
Seem to get decent reviews on trust pilot. First time I've switched in years so hope I dont regret it!