Optimal Design of a Hybrid PV–Hydropower System for a Mountainous Region in Vietnam
نویسندگان
1 Department of Optics and Optoelectronics, Faculty of Engineering Physics, H anoi University of Science and Technology, No. 1 Dai Co Viet, P. O. Box: 100000, Ha Ba Trung, Hanoi, Vietnam.
2 Xuan Thien Group, Xuan thien Tower, Xuan Thanh Urban Area, P. O. Box: 100000, Ninh Binh City, Ninh Binh Province, Vietnam.
3 Department of Optics and Optoelectronics, Faculty of Engineering Physics, H anoi University of Science and Technology, No. 1 Dai Co Viet, P. O. Box: 100000, Ha Ba Trung, Hanoi, Vietnam.
doi
10.30501/jree.2026.515689.2340چکیده
Electricity demand in remote and mountainous regions is steadily increasing due to population growth and the expansion of rural activities, yet access to the national power grid remains limited because of challenging terrain and high infrastructure costs. Renewable energy, particularly hybrid systems combining solar photovoltaic (PV) and small-scale hydropower, provides a reliable and cost-effective solution for these areas. This study presents the design and feasibility analysis of a hybrid system comprising a 50 kW solar PV array integrated with a 30 kW mini-hydro turbine, with a total investment cost of approximately 21,405 USD. The system is capable of supplying stable electricity to 30 to 50 households. Site-specific factors, including local weather patterns and mountainous terrain, were analyzed to optimize system capacity and ensure maximum operational efficiency. Economic analysis indicates a payback period of approximately three years, confirming the financial viability of the system. The results demonstrate that hybrid solar–hydro systems can offer a sustainable and practical alternative to conventional grid extension, thereby improving energy access and supporting development in isolated mountainous communities.
