Calorific values of gas

sidbee

I am aware that the CV varies by region, can change each month, (and I think is monitored by Ofgem.)
But is the CV applied to bills the same for all suppliers within a region, or can it vary according to supplier? And can anyone point me to where I can find what the CV declared for a particular region (by supplier, if appropriate) has been over the last couple of years?
All I have been able to discover from my internet searches has been generalised stuff from energy suppliers and switch web sites about why and how a CV is applied, and very detailed technical stuff from National Grid and others about how it is calculated - but nothing anywhere about what the actual declared values have been over time (or even the current amounts, apart from what the supplier states on the bill - are we just supposed to say "OK must be right then, if Scottish Power/British Gas/EDF or whoever says so?)

sid b

molerat

http://marketinformation.natgrid.co.uk/gas/DataItemExplorer.aspx

jalexa

molerat wrote: »

http://marketinformation.natgrid.co.uk/gas/DataItemExplorer.aspx

Stornoway 93

What sort of gas is that?

molerat

http://www.nationalgrid.com/uk/Gas/Data/misc/reports/description/

Gas passing through the National Grid pipeline system has a CV of 37.5 MJ/m3 to 43.0 MJ/m3, with the exception of Stornoway which receives liquid petroleum gas.

sidbee

Thanks molerat, just what I was looking for.
I see the database records the daily values - I didn't realise they varied so much and so often! I assume that the value the supplier uses in calculating my bill is supposed to be an average of the daily rates over the calculation period?

molerat

Yes, I suppose you could work it out from the tables if you really wanted to.

jd87

jalexa wrote: »

Stornoway 93

What sort of gas is that?

The western isles get LPG (Propane).