Would someone workout for me , how much my gas as cost me over a 24 hour period?.
The GasMeter reading was 18243 after 24 hours it read 18248 , therefore I used 5 kWh for that period of trial.
The price of the gas , is 2.55 p/KWH, I'm little confused on how to work it out for myself.
I thank you in advance for answering my question.
" I'm not very clever?, but I'm good at lifting weights"
Best answer by Transparent
I'm going to show my workings -
not just so that others can follow it if they find this thread in the future, but because I want a good grade and a gold-star!
- You've used 5 cubic metres. There's no volume conversion factor to take into account, because it's a metric meter. If the reading was in cubic feet, then we'd have to multiply by 2.83
- Apply a volume correction of 1.02264 to allow for changes in temperature and pressure. This figure is approved by Ofgem. 5 x 1.02264 = 5.1132
- Multiply by the calorific value. Domestic gas is a mixture of butane, propane and others, which give off different quantities of heat. This mix varies during the year depending on where the UK gets its gas. Currently the calorific value is 39.1 So 5.1132 x 39.1 = 199.92612
- Convert from Joules to kilowatt/hours, dividing by 3.6; 199.92612 / 3.6 = 55.535 KWh
- Cost at 2.55p each, 55.535 x 2.55/100 = £1.4161
- Add the day's standing charge of 27.4p; £1.4161 + 0.274 = £1.69
- Plus 5% VAT comes to £1.77
Now, this isn't particularly accurate because I'm pretty sure that the meter didn't exactly pass through 5 cubic-metres. It might have been 4.65 or 5.37 or whatever.
But you wanted to have estimate over a short period, so that's what I've calculated.