Out of curiosity I looked at the tarriff for where I now live in Yorkshire and where I used to live in London. Then I also looked at a few other areas in the UK. While the standing costs are the same there is something like a 10% difference in the per kwh charges. The differences for gas and electric are also not the same for each area. I just wondered why this is as neither the gas or electric I am using is at all likely to be supplied by Bulb it just comes from the pooled grid. I am not complaining Yorkshire is less expensive than London, Lands End or John O’Groats . I wonder when the cheapest and most expensive places are ?