Exactly this approach. I was able to get a 3 x 16A switched outlet, with power monitor for about $6 USD each. https://www.aliexpress.us/item/3256805494808710.

Exactly this approach. I was able to get a 3 x 16A switched outlet, with power monitor for about $6 USD each. https://www.aliexpress.us/item/3256805494808710.html?spm=a2g0o.order_list.order_list_main.23.478018025lIY3J&gatewayAdapt=glo2usa https://www.aliexpress.us/item/3256805494808710.html?spm=a2g... I've had a few glitches, but I'm blaming my rookie experience with this before I blame the product directly. Expect a long delivery time from anything at aliexpress though. I was originally seeking a whole-house energy monitor, but the 200A CT Clamps are too big to fit on the main lines into my distribution center, because there are too many other wires around it.