Home Assistant Energy

Home Assistant includes a dedicated section to monitor energy usage.

Go to Energy dashboard.

Add a sensor under Grid consumption and, if you export energy, optionally under Return to grid.

For Zigbee integration, you typically use ZiggyMeter Summation delivered for Grid consumption and ZiggyMeter Summation received for Return to grid.

Refer to Home Assistant documentation for more details https://www.home-assistant.io/docs/energy/.