Make sure to use the Home Assistant community app to add this device to Homey;
The Energy tab can need specific settings for devices to appear.
– I suspect you didn’t add the “Power” entity next to the “kWh” entity to the Homey device you used to pipe energy measurements?
– And/Or: when recently added, often the device/measurements start to appear the next day.
Example, this device, with these H.A. entities, pops up in the Energy tab

