· More than two in five British adults (44%) say that they do not understand how their home energy supplier calculates their bill.
· Half of Britons (51%) have not switched energy supplier in the past five years.
· One in eight Britons who have changed energy supplier in the past five years (13%) say that when they went to change and closed their account with the company they were leaving, the amount was more than they expected. 68% say it was about how much they expected.
· Three quarters of Britons (76%) say that energy companies often seem to make tariffs unnecessarily complicated.