Sub Meter - Calculation Help

kyleporter

I'm hoping someone may be able to help me with a sub meter cost query?

I have a property which has a smart meter which feeds 5 submeter. The smart meter gives an accurate reading back to the suppliter each month. Does anyone know an accurate formulae for working out the cost.

This is the formulae i have been using. Each month i take a meter reading so i would multiply the difference by the unit rate. Then i divide the amount of units used on the bill by the totaly number used on the smart meter. these are different as i do not take my reading at the same time as the smart meter sends it back to Scottish Hydro. This figure is my rounding figure, which i would then multiple by the first figure which gives me cost per sub meter. The cost comes out to the same that is on the bill however is there a simpiler or better formulae

I hope someone can help thanks

Terrylw1

Does the smart meter supply any other appliances or is the demand straight to the 5 sub meters?

Not sure what you are trying to calculate, if its the sub meters, they record their usage anyway.

If you are not working out usage per sub meter or any main meter only consumption, isn't the bill already telling you?

spiro

If you are trying to divide the bill between the 5 sub meters with no consumption coming directly off the main meter a simpler method is:
1) Read all 5 sub meters once per month (around the date the meter submits reading) and always on the same day e.g. 1st.
2) For each sub meter calculate it's percent of the total used across all sub meters.
3) Each sub meter pays that percentage of the bill.
Example sm1 used 15, sm2 used 15, sm3 used 20, sm4 used 20 and sm5 used 30 units in the month. So percentages are 15, 15, 20, 20 & 30. Monthly bill was £250 so sm1 & 2 pays £37.5, sm 3 & 4 pays £50 and sm 5 pays £75.

kyleporter

I'm trying to spilt the 5 submeters by the tenants in each of the properties.

This method does make it much simpilar thanks for your help