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How accurate are the CV figures from the National Gas website
PennineAcute
Posts: 1,186 Forumite
Now I am with Octopus, I am trying to automate my gas kWh usage.
I have a gas bill from Octopus for 15 August - 4 September, with a CV value of 40.1
I have also downloaded the CV values from the National Gas website (see screenshot).
Highlighting the 15.8 - 4.9 gives me a mean of 40.3
Are the National Gas figures accurate?
Edited to show correct CV value on bill.

I have a gas bill from Octopus for 15 August - 4 September, with a CV value of 40.1
I have also downloaded the CV values from the National Gas website (see screenshot).
Highlighting the 15.8 - 4.9 gives me a mean of 40.3
Are the National Gas figures accurate?
Edited to show correct CV value on bill.

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Comments
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Issue is now solved
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Let me guess - rounding?PennineAcute said:Issue is now solved
N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Kirk Hill Co-op member.Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs, Best kettle!
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 35 MWh generated, long-term average 2.6 Os.1 -
QrizB said:
Let me guess - rounding?PennineAcute said:Issue is now solved
Correct.
A rookie error on my part as well. The bill was split into two with two CV values
40.1 for 15.8 to 15.8 and 40.2 for 16.8 to 4.9
So it was accurate for 15.8 and rounding errors for the following days.
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