The article is devoted to the development of a new design of an autonomous reactive hydro-turbine micro-hydroelectric power station on low-pressure water sources. The results of constructive and theoretical calculations of a jet turbine, as well as a graph of the dependence of the efficiency of a hydraulic turbine on the radius of water exit from the nozzle are presented. An analysis of the test results of a prototype of a reactive hydro-turbine micro-hydroelectric power plant is described.