Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
A stream or channel on the land, and the energy of its flow and fall. It can turn a micro-hydro turbine or a water wheel, or lift water uphill with a ram pump.
It arrives on the site on its own. Nothing in the catalogue makes it. In the builder you add it as “Flowing water”.