Integrating Very-Low Head Hydropower Plants to Flood Gates in Bandung's Rivers: Challenge and Opportunity

Abstract

This work discusses the challenge and opportunity in integrating flood gates with very-low head hydropower plants (VLHHP) in three rivers in Bandung Indonesia: Cikapundung, Cidurian and Citarik. These rivers are located in the upper stream of the Citarum watershed. This study aims to solve the lack of street light in Bandung through several stages. Firstly, certain data are collected, such as daily debit, the physical condition of rivers, flood gate width, land use map and geological conditions. Afterward, debit and flood gate data are analysed to determine the generated electric power and its techno-economic feasibility. The pollution level of rivers is defined on the basis of the direct observations in the field and literature study. In the final stage, the watershed/subwatershed management system run by the local government is identified on the basis of the land-use change data. The geological condition was also assessed to recognise the risk of erosion and its impact on future power plant operations. Results from the data analysis were then used to design a VLHHP management scheme that is beneficial for all stakeholders. The two schemes proposed are non-profit and profit-sharing. Recommendations related to watershed/sub-watershed management systems are also provided.