Plugin now supports Tuya 80 Amp and 150 Amp single phase smart energy meters. They're a pretty cheap way of whole house energy monitoring.
I found that the 80 Amp version's clamp wouldn't fit my house incoming supply cable, so I had to get the 150 Amp. The 80 Amp is fine at the distribution board incomer though. (I'm talking UK cable sizes.)
Known issue: On the 150A device, daily_energy (kWh) and month_energy (kWh) are not updated unless you tap the respective 'inquire' button in the Tuya phone app. According to Tuya developers there's no API call to do this, which sounds silly. I've contacted the manufacturer to see if they have any suggestions to get around the problem. All other states update as normal.