Preliminary Techno–Environment–Economic Evaluation of an Innovative Hybrid Renewable Energy Harvester System for Residential Application

Xiaohang Wang, Wentong Chong, Kokhoe Wong, Saihin Lai, Liphuat Saw, Xianbo Xiang and Chin-Tsan Wang
Additional contact information
Xiaohang Wang: College of Electronics and Information Engineering, Beibu Gulf University, Qinzhou 535000, China
Wentong Chong: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Kokhoe Wong: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Saihin Lai: Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Liphuat Saw: Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang 43000, Malaysia
Xianbo Xiang: School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Chin-Tsan Wang: Department of Mechanical and Electro-Mechanical Engineering, National I-Lan University, Taipei I-Lan 260, Taiwan

Energies, 2019, vol. 12, issue 8, 1-28

Abstract: A technical, environmental, and economic feasibility study for a patented hybrid renewable energy harvester system for residential application is conducted in this paper. This system can be mounted on top of an existing residential building to provide electricity from renewable sources. The system is characterized by its V-shaped roof guide vane (VRGV) that directs and augments airflow into the wind turbine, to enhance the rotational and power generation performance of the wind turbines in low wind speed areas. Furthermore, the VRGV increases the installation area for the solar photovoltaic panels and expand the rainwater collection area for the building, and facilitates natural ventilation and prevents excessive solar radiation into the room. The environment–economic evaluation of the system is conducted based on the life-cycle cost (LCC) in terms of low carbon and economic cost-effectiveness. The evaluation of the system with dimensions of 15 m (L) × 16 m (W) × 17.05 m (H) showed that the annual energy generated is 21.130 MWh. Annual low-carbon benefit of the system is estimated to be 11.894 t. The cumulative net present value (NPV) of the system in the life cycle time (20 years) is $52,207.247, with the consideration of a discount rate of 8%; also, the cash flow breakeven occurs in the 11th year. It is important to note that the carbon payback period (CPP) of the system is five years.

Keywords: hybrid renewable energy; energy harvester system; V-shape roof guide vane; technical feasibility; low-carbon benefit; economic evaluation; life cycle cost (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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