So why doesn’t your Water Metre? Or does it?
For about £12 you can buy a water generator that fits to your water pipes, dimensions and size similar to a water meter producing anything from 10W to larger models producing 3000W and more..
Hydro Electric Water Flow Power Generator Turbine for DIY
DC12V 10WGenerate electricity from water pressure
Description:Start generating electricity with this highly efficient Hydroelectric Generator.
Simply connect your water pipe to the input inlet, the image of the arrow on the generator represents the water flow direction.