Updated on 19/08/25 by Chris_OVO:
Great to see our resident smart meter usage data analyst, @Simon1D has already helped to explain the discrepancies you’ve noticed between the usage figures on your In-Home Display and the usage pages of your online account, @Paul_Bedfordshire.
It’s worth calling out that both your IHD and these usage pages may be affected by intermittent signal issues and therefore the daily consumption figures may not be 100% accurate throughout the month (as Simon has well-documented!). Any time we do re-gain connection with your meters you may notice your charges or daily usage figures are corrected based on the up-to date smart meter usage data we’ve received.
If the signal issues continue for more than 5 days it’s worth taking a look at this guide which helps to diagnose signal issues via your online account.
Let us know if this helps, or if you notice any further discrepancies. It’s really helpful to others who may find this topic in future too!