[A-GE28] Energy-Environment-Water Nexus and Sustainable Development

[AGE28-02] Investigate the Benefit of Micro-hydropower Generation on Water-energy-food Nexus : A case study in Linnei channel

★Invited Papers

*Shih Jen-Chieh¹, Fu-Yuan Lin², Ming-Der Hong², Hong-Ru Lin ³, Jet-Chau Wen^4,5 (1.Graduate School of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology., 2.Irrigation and Engineering, Council of Agriculture, Executive Yuan., 3.Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology., 4.Research Center for Soil and Water Resources and Natural Disaster Prevention (SWAN), National Yunlin University of Science and Technology., 5.Department and Graduate School of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology.)

Keywords:Micro-hydropower, Water-energy-food Nexus, Irrigation Channel

Micro-hydropower is necessary renewable energy to provide baseload, and it has the advantages of sustainable development and reduction of greenhouse gas emissions.There is an interrelationship between irrigation water and energy from micro-hydropower with the development of micro-hydropower in agricultural irrigation systems. Li et al. (2019) mentioned that in the agricultural system estimate the water supply-demand, energy supply-demand, land demand, as well as food production, were quantitatively analyzed under different scenarios. However, the study water for electricity generation was neglected in the agricultural system. Zhou et al., (2019) apply small-hydropower into water supply systems to lift renewable power output and uplifting the synergistic benefits of the Water-Food-Energy (WFE) Nexus steered by the optimal water allocation and small-hydropower installation, but the adjustment of the water source by the reservoir makes the flow of the water supply system unstable, which leads to unstable electricity generation of small hydropower. Gaudard et al., (2018) research that in the relationship between water and energy of hydropower plants is set upstream. The results show that seasonality slightly affect hydroelectric power generation
Therefore, the study set up a micro-hydropower generation system in Linnei channel of the Zhuoshuixi river watershed in the middle of Taiwan. Collected channel background information and use Doppel (Teledyne StreamPro ADCP) to measure the water level, velocity and discharge of the study site analyzes potential power generation, and evaluate the profit and payback period of micro hydropower generation and the impact of micro- hydropower systems in agriculture. In order to investigate the relationship nexus of WFE, in addition, evaluate the effectiveness of micro- hydropower in reducing carbon dioxide emissions. According to the results of this study, it can be used as a reference basis for setting up other micro-hydropower systems in the future.