Calorific value (CV) ?

bonus2010

How do you know you are being charged the correct Calorific value (CV)?

Is there a website that would advise of the changing CV values to verify with for your area or do you just have to accept what your energy supplier tells you.

MothballsWallet

Google "National Grid Data Item Explorer" - that's where I get the data from each month for the month before (they moved the system to Amazon Web Services and I can't remember the site address).

It looks a little daunting, but you can tell it what you need and download the data in either CSV or XML format (I use CSV because you can easily open in a spreadsheet).

You do need to know your supply region code, which you can find on the Energy Networks Association website here to filter down to the appropriate values, then you can filter on dates.

Cardew

https://www.ofgem.gov.uk/publications-and-updates/guidance-all-domestic-gas-suppliers-how-calculate-calorific-value-used-domestic-consumer-billing


In practice the amount of variation in CV hardly affects a bill.


All company's billing is subject to audit. It is too easy to check back over the last 20 years and see if a company has used a CV of xxx on a given date when it should have been yyy.

molerat

http://mip-prod-web.azurewebsites.net/DataItemExplorer/Index

I manage to calculate my bills to within 1p of the supplier figure.