Evaluating Micro Hydro Power Generation System under Climate Change Scenario in Bayang Catchment, Kabupaten Pesisir Selatan, West Sumatra

This study aimed to investigate climate change impacts on micro hydro power generation in Bayang catchment, Kabupaten Pesisir Selatan, West Sumatra. There are three micro hydro power systems in operation today, namely Pancuang Taba (40 kW); Muaro Air (30 kW); and Koto Ranah (30 kW). The Water Evaluation and Planning (WEAP) system was applied to simulate hydrological model and micro hydro power projection under different scenarios of greenhouse gas emissions (A2 and B2) from IPCC reports. The model was performed for the 2013–2025 period. Results demonstrated that climate change will reduce micro hydro power production. Changes in power generation were varying up to 7.6% under B2 scenario and up to 15.7% under A2 scenario at the last projection year.