Tuya kWh meter

Devices using the Tuya communication platform can be controlled by the Android Tuya Smartlife app

To use them in HA, the Tuya integration needs to be installed and configured.

Once the integration has been installed, devices and entities become available in HA.

The kWh meter has 4 entities, 3 sensors to read power, voltage and current, and an ON/OFF switch, these can be add to a dashboard.
It does not provide an energy sensor that can be add to the energy dashboard, so this must be created in HA
https://community.home-assistant.io/t/howto-add-tuya-energy-meter-to-the-ha-energy-dashboard

Settings/Devices & services/helpers,   create helper and select integral sensor

Then go to the energy dashboard and click on the top right 3 dots and select energy configuration and add it, either as individual device for which you want to see a graph or as solar production meter when you wired it to measure solar production.