Micro-turbine installation feasibility in bulk water reticulation pipelines

This paper presents an economic and theoretical feasibility study of the application of Micro Hydro Turbines at a case study Pressure Regulating Valve (PRV) site in a South African municipality´s bulk water supply system. By examining data collected from the case study site it is possible to determine the flow rate available and pressure of the supply water flowing through the PRV system. Using this data it is possible to determine the theoretical power production capabilities of this case study site. The overall results of the study show a promising theoretical production capacity of about 39000 kWh per annum from the installation of Micro Hydro Turbines at the case study PRV site, equating to a electricity cost saving of around R48 000.