All bring up very good points.
As for power needed to run tap water, its already there , we use it anyways to wash dishes and take a shower. Few drops per second more to the drain when our reservoirs are overflowing...
is it that bad?
If so then why don't we go after chemical industry companies and metallurgy to make them stop wasting river water and to make them stop polluting and killing fish by the trillions?
I am taking clean water out of environment, and then after i cool down my tank i put it back to the environment still clean, non toxic and unpolluted with industrial waste.
Naturally people will choose electricity in places where there is no or little water and Hydro is cheaper then water, i, most likely would do the same.
The big question is ; why we talk, talk, talk about saving a planet and being environment friendly if all this comes down to money anyway?