I have had a brilliant idea for providing more electrical energy for domestic consumers, and it's free!
Use a water pump in reverse. Attach it to any water outlet and use a hose to expel the used water into the drains. Attach the spindle of the water pump to an electrical generator/alternator, then turn on the tap. Free electricity!
(Of course, if you have a water meter it may prove rather expensive.)
I read somewhere that sometime in the late 19th early 20th centuries there were water powered motors available to drive sewing machines. Can't see them being very popular with the water suppliers.
I was joking of course but, yes, I know for certain that water power was used in the 19th century for driving organ blowers. No water meters in those days, in fact I'm not sure that they even charged people for their water supply, those who had one of course.