The microhydro plant
So much work with digging deep and pipes (putting plastics in the ground...) when he could simply have made way for a small rivulet and built a small environment-friendly gravitation water vortex plant that can actually be crossed by fish in both directions (it even adds oxygen to the water) and probably requires less maintenance.<p><a href="https://en.wikipedia.org/wiki/Gravitation_water_vortex_power_plant" rel="nofollow">https://en.wikipedia.org/wiki/Gravitation_water_vortex_power...</a>