One Bedroom House - Electric/Gas Recommendations?

I am about to buy a one bedroom victorian house for just myself to live in (Deal in Kent if this has any bearing on the question) and am confused by the different energy providers, does anyone have any recommendations? There is gas central heating, a combi boiler, a shower attached to the boiler (ie not electric), and an electrical hob and oven. I work 9-5 and so will be using my services in the evening/early morning.