I invented that!
A little wheel that turns from the water that flows when you do dishes, take a shower etc. That wheel is used to generate electricity. You only pay for water by the gallon. So any free electric you can get out of the pressure is bonus.
I also have a little invention for charging batteries from the "free" electricity the phone company sends to your house.
The box at the bottom of the mast is clearly the turbine that runs the light whenever the washing machine is on.
