This current transformer module has an ethernet connection.
The following Powervault datasheet says that the current transformer should be no further than 25m away from the Powervault (at least that's what i think it means?)......
Supposing the Powervault is indeed 25m away from the current clamp at the consumer unit. How would you then wire the current transformer back to the Powervault?...
1...Use a long ethernet cable and somehow weave it through the house?
2....Use "TP links" so that the household mains wiring could be used to carry the current measurement signal back to the powervault?