Can anyone tell me what mathematical formula is used to get a figure of 11931kwh's from these two meter readings 7840 latest 8528? I have major issues with my gas supplier and need to check figures myself but have no idea how they get a five figure annual usage number from a four figure meter reading?
https://www.ukpower.co.uk/home_energy/gas_meter_readings It's the multiplication of the Calorific Value that makes it so high.
It's because the meter reads the volume of gas but the calorific value (the amount of energy per unit volume) can vary over time and you are charged on the energy used (not the volume of gas). http://www.transco.co.uk/services/cvalue/cvinfo.htm
My totally useless supplier Daligas gives very little information though you would not believe that if you read everything on their website. To the contrary they believe in clear concise information as they have, and I quote, an advanced IT system, a system that seems unable to provide a copy of an email supposedly sent a couple of months ago and seems unable to produce a detailed annual summary. I shall keep digging as using the formula provided by Pieface does not come anywhere near the figure I eventually got from Daligas.
