While this idea is not yet possible make yourself as a DIY, a vortex power plant is a simple and solid technology with lots of potential. It produces electricity in harmony with nature.
A vortex power plant is a further development of a water wheel or a reservoir system. A water vortex power plant is a small, rugged river power plant, which can also be used when there is a slight slope.The energy is caught in a swirl and almost immediately drives a turbine.
If you still operates a such a small power plant in a region together with the citizens it can provide a great symbiosis of economy, ecology and community feeling in addition to the production of electricity.