[Bug]: Growatt - SOC sensor has wrong device class for HA 2026.6.0 energy board

[nilaz]

Describe the bug

HA 2026.6.0 can show SOC in Energy Dashboard but the Growatt SOC-sensor has wrong metadata.
Today it is

device_class: battery

According to https://www.home-assistant.io/docs/energy/faq/ it should be

device_class: energy
state_class: measurement

if I understand it correct.

Integration Version

2026.06.2

Homeassistant core version

2026.6.0

Inverter brand

Growatt

Plugin used

plugin_growatt.py

Serial prefix

Connection Method

shinewlanx2

Detailed Error Log

No response

Additional context

No response

[braetkuegeli]

Same with Solinteg Inverter.

As a workaround I've created a template sensor with the missing state_class=measurement.

[rosenrot00]

Fix is here, energy as class would be wrong from my perspective. Battery is accurate. #2110

[wills106]

I have just released 2026.06.3 with the changes from #2110

[braetkuegeli]

I could now add the Battery SOC sensor. Deleted my template sensor again.

I think this issue could be closed @nilaz ?

[nilaz]

Thanks for quick response!