Design Rotor Turbine Hybrid of PV-Picohydro Power Plant as Energy Sources for Rural Area in Indonesia

In Indonesia, especially in rural areas, the potential of low head river and sunlight is still quite abundant energy source; these can be used as a source of electricity on a small scale such as picohydro and solar energy. The rural areas are usually far from the electricity network, so that a power plant off grid is sufficient enough for a house. One component of the picohydro generator is a turbine, and so, this research is designed with dimensions of turbine according to flow condition of the river in West Java Indonesia. The design of the turbine starts with assessing the water flow in the river in the country side, and then determining the design specifications, followed by designing the turbine details with theoretical and simulation approach. The generator that will be used has 12 Volt 500 rpm, the designed power has minimum of 100 watts. The results of the design obtained a Kaplan turbine with a 4 degree angle of attack, blade diameter 217 mm. The maximum stress 5,9 MPa, this occurs in the area between the hub and turbine blade rotors, with thickness 2 mm and material blade used aluminum Alloy.