I had smart meters installed on 16/10/2023 and electric meter was changed in account straight away. However the gas meter was only changed yesterday 27/11/2023. On checking my bills I find that the gas is about three times what I would expect.
To convert metric gas meter readings to kWh:
Take a meter reading.
Subtract the new meter reading from the previous reading to work out the volume of gas used.
Multiply by the volume correction factor (1.02264).
Multiply by calorific value (40.0).
Divide by kWh conversion factor (3.6).
Old meter 17.06kWh
New meter start 0.0000
14/11/2023 reading 61.601
27/11/2023 reading 95.323
Calculate using above:
61.601
(61.601 x 1.02264) = 62.99564664
(62.99564664 x 40.1) = 2519.8258656
(2519.8258656 / 3.6) = 699.9516293333333
Cost 699.9516293333333 x £06.49p = £45.4268848
This is billed at £138.86
95.323 - 61.601 = 33.722
(33.722 x 1.02264) = 34.48546608
(34.48546608 x 40.1) = 1,379.4186432
(1,379.4186432 / 3.6) = 383.1718453333333
Cost 383.1718453333333 x £06.49p = £24.86780987621333.
This is billed at £70.82
I think that my account has not been changed from an imperial to a metric in the calculation.