Energy-dashboard feature: delayed calculation

[frodef]

I (and many like me) have a grid utility meter that reports energy usage by the hour, 15 seconds past each hour. Consequently the energy dashboard reports hourly usage shifted by one hour: The utility meter entity is being sampled some 15 seconds before it is updated for the just-expired hour.

I believe this is not an integration software issue, but rather a (hardware) feature of the utility meter: For whatever reason the meter will not provide constantly updated energy usage, only this "totalt consumption the previous hour", a bit too late.

Would it be possible to add a "delay calculation" configuration entry to the energy dashboard, such that the dashboard is updated X seconds past the hour? Possibly there could be an auto-mode where the sampling considers the input entity's update timestamp(s)?