Business cost consultants focusing on energy, water and telecommunications services
Gas Meter Conversion from Cubic Meters (m3) or Cubic Feet (ft3) to kWh
Why does the meter movement on your gas meter not equal the amount of units you are being charged for by your energy supplier?
Why does the meter movement on your gas meter not equal the amount of units you are being charged for by your energy supplier? Gas meters measure gas in either cubic meters (m3) or cubic feet (ft3) but your supplier will charge you for gas used in kWh's. Conversion into billing units of kWh's is required - firstly, determine which type of the two meters you have m3 or ft3?
Converting Cubic Meter (m3) to kWh:
Recorded Meter Movement in m3 is multiplied by the Correction Factor (Correction Factor is a measure of the temperature and atmospheric pressure at your site and this value can be located on your bill) - it is usually around 1.02264
Multiply your answer by the Calorific Value (Calorific Value (CV) is a measurement taken by National Grid Transco that measures the amount of energy contained within the gas being consumed - it is measure in mega joules and varies dependent upon location) - it is normally between 37.5 and 43.0
Divide your answer by 3.6
You have now converted m3 into kWh's and can check this figure against the value shown on your bill.
Converting Cubic Feet (ft3) to kWh's:
Recorded Meter Movement in ft3 x 2.83 (this converts cubic feet into cubic meters)
Follow steps 2 and 3 above.
You have now converted m3 into kWh's and can check this figure against the value shown on your bill.
Example calculations:
Based on 3000 units - Correction Factor of 1.02264, Calorific Value of 38.5 and Gas Price of 6.620p/kWh.
Cubic Meter (m3) - 3000x1.02264=3067.92x38.5=118114.92 divide by 3.6=32809.70x0.06620=£2172.00
Cubic Feet (ft3) - 3000x2.83=8490x1.02264=86882.21x38.5=334265.06 divide by 3.6=92851.41 x 0.06620=£6416.76