Updated on 03/03/26 by Abby_OVO
Hi @wkeithg , I’m not sure that’s the right way around. Your overall usage should come from your meter which is calibrated - although the half hour usage isn’t quite as accurate.
Your charging usage, depending on set up, comes from either the charger app or charge anytime app which is one step removed. Agreed that you would expect it to be correct but I can’t see how it would be more accurate than directly from your smart meter.
The ‘Usage’ section of the online account / app is constantly being improved by our Product teams to give the most accuracy possible. The graphs are there as a guide, and shouldn’t be taken as gospel over and above your statements, which can be downloaded via the online account / app. The Usage graphs are reliant on regular smart meter readings, and perform best when the meter reading schedule is set to half-hourly. You can request a reading schedule change by contacting our Support Team.