Just a word on comparison sites: They are fallible and I do wonder if they get commission for directing/managing changes. I was told by one of the sites that I would be best to switch to energy provider X and save so much per year. When I spoke to the energy company direct they said the would cost me more and in effect advised me against joining them. It is thus certainly worth double checking any recommendation from a comparison site. Additionally, they do not cope well with anything that is beyond their "average" user criteria (never take any notice of such vague references, stick to your actual figures).