New Economical Trends for Hydroelectric Power Schemes

A new hydroelectric system (called the hydro-aero-thermal system) for generating and storing electric energy is presented. A hydraulic air compressor replaces the conventional air compressor in the gas-turbine plants so that the turbine can be used to deliver more electric energy, especially during peak loads. The economical application of this system does not depend on a high head between the upstream and downstream levels of natural water, therefore more water power can be economically utilized. The system suggested is flexible, can be installed in different places where convenient, and would help hydroelectric power on a more economical basis. In a case where the installation cost of the conventional hydroelectric plant is high, the hydro-aero-thermal system may be more economical and convenient for both generating and pumping.