I don’t think there are any plugs/outlets which work with the energy app.
The appliances suggested by Samsung which do are listed here.
I can confirm the UK type g plugs from samsung do not work with the energy app.
It’s disappointing the energy app doesn’t pull in everything which is shown on individual items.
In the EU/UK you can see all your energy use with a meter reader interface such as this Frient one which I have.