Currently, the potential power consumed value in tooltips and the inspector only display the total potential for direct consumers; child circuits separated by transformers are not included. It would be helpful to both new and experienced players to display a transformer in the consumers list as having a consumption potential equal to that of the transformer's child circuit. This would be especially helpful in a "main bus" situation where there is a large, central bus that contains only generators and consumer transformers. In this case, when the transformers are consuming power, the value will display something like "720 W / 0 W", which makes little sense, especially to new players.
Look at the potential power consumed value before and after building a subcircuit separated by a transfomers. There is no change.