The Potential of Micro-hydro Power Cascade in Irrigation Channel of Kalibawang, Indonesia

Indonesia’s program and regulation on the national New and Renewable Energy Policy mix target are at least 23 by 2025 and 31 by 2050 to increase the role of NRE to energy security and self-sufficiency in energy. The government’s plan Energy sourced from hydropower, mini micro-hydro installed 20,960 MW in 2030 and 45,379 MW in 2050. The construction of dams on the river can have an impact on the backwater and the environment. Construction of micro-hydro in existing irrigation channels is an environmentally friendly solution. In this study, Identification of Potential Head (ΔH) in Irrigation Channels used an unmanned aerial vehicle (UAV) DJI Phantom 4. DEM data processing was to produce contours at 7 potential micro-hydro location points. Data Flow Duration Curve (FDC) determined the mainstay discharge of 5 m3/s with a probability of 85. Discharge analysis from secondary irrigation data for 11 years (2009–2019). The results of this study found the Head potential P1 ΔH 15 m 625 kW, P2 ΔH 1.5 m 63 kW, P3 ΔH 5 m 208 kW, P4 ΔH 3 m 125 kW, P5 ΔH 8 m 333kW, P6 ΔH 7 m 291 kW, P7 ΔH 3.5 m 146 kW and total micro-hydro potential along Kalibawang irrigation channel reaches 1.8 MW. Special Result found the Microhydro Blumbang-Kedungrong Cascade (P5-P6) ΔH 15 m 600 kW with proposed Kaplan turbine S-Type and service area to increase from 135 to 720 homes in 2 sub-districts. © 2021. All Rights Reserved.