I’ve got a HyperVolt car charger that reports the energy sent to the car in Wh - so far so good.
However the energy count is per charging session so resets to 0 every time. This means that the Energy dashboard sees the drop back to 0 and puts the power usage into the negative instead of showing how much power it used that day.
How do I work around this, is there a helper I can use that copes with the resets and counts up the total energy used?
From the sounds of it, the Utility Meter integration should do what you need?
Utility Meter - Home Assistant (home-assistant.io)
periodically_resetting is designed for this sort of use case I think…
Funnily enough I’m looking at Hypervolt as I’m choosing an EV charger - this sensor from the integration might also be part of the solution for you:
I’d forgotten I’d posted this. The session_increasing seems to work as expected, I’ve had it on the Energy Dashboard for a while.