Indonesia Conference Directory

Reservoir is a water resource facility that has a function as a storage and water provider. The abundant water in the rainy season is accommodated, stored and used appropriately throughout the year. The fact that is happening now as time goes by is that many reservoirs in Indonesia have decreased function and performance. One of them occurs in the Bajulmati Reservoir located in Banyuwangi and Situbondo districts, East Java. The decrease was due to the planning of the reservoir that was not in accordance with the current conditions. This study aims to analyze the Operating Pattern of Bajulmati Reservoir so that the reservoir is expected to provide optimal performance in utilization for irrigation, raw water and Micro Hydro Power Plants. This research was conducted by analyzing data for the availability and utilization of Bajulmati Reservoir water, stretching the discharge of reservoir inflow in the future for 50 years, forming a model with Dynamic Programming and simulation. The first simulation was carried out according to the operation of the current reservoir, which is prioritized for irrigation (factor kT = 100% with differences in how to calculate irrigation water requirements), irrigation water is passed through a turbine (PLTMH). In the second simulation, the reservoir was operated with the fulfillment of irrigation and raw water, a factor of kT> 70% and the Micro Hydro Power was optimized considering the availability of water in the reservoir. The simulation results show the operation of the reservoir in producing electricity on average per year if the turbine must be fully operational and if a turbine with a 20% maximum power already operate with a percentage of the fulfillment of irrigation and raw water (factor kT). From the analysis of income (without taking into account the cost and assuming the provision of irrigation water and raw water are performed simultaneously) are known to be the highest income and lowest income.