Somehow, terminations need to be built for these systems, like meters. The static pressure will not calculate in a domestic water system, and something like an "Automatic Transfer Switch" has 2 power sources. You might be able to add a connector (on the incoming side) and set up the connector similar to the existing one, so long as it doesn't affect the total building loads. I'm not too keen on this part of revit yet, let us know if you find something.
Good Luck!