[TimP]

Nigel, first thing to do is give us your annual consumption figures for both gas and electric. If you don’t have them then you need to look at some old bills for an actual reading figure, not an estimated one. With that figure you can easily work out what you will pay. I confess to taking daily gas and electric readings and monthly water meter ones. Having solar panels helps too as it gave me the impetus to take control of usage.