I have a question,why not provide homes with 3 phase power? With energy conservation being a "hot subject" it seems to be a tremendous waste to have single phase air conditioning equipment in most of the new homes constructed.
Watts are watts regardless of them being delivered three phase or single phase.
746 watts per HP is unchanging.
Advantages of three phase are smaller conductors.
Disadvantages...cost.
Any three phase distribution equipment costs more than the equivalent single phase equipment.
