Technical & Economic Evaluation of the University of Phayao Solar PV Rooftop System
Keywords:
Solar PV Rooftop System, Performance Evaluation Technical Evaluation, Economic Evaluation, UniversityAbstract
Educational institutions such as universities are high energy demand groups and tend to increase more their use of electricity every year. This research studied and evaluated the technical and economic potential of a 2 MW solar PV rooftop power generation system at the University of Phayao in Thailand. 13 buildings and two car parks in the university campus were selected for installation of the system. The total installed capacity was 1,998.72 kW. The result of the system simulation showed an average performance ratio (PR) of 79.96% with total electricity generation of 2,784,702 kWh in the first year, leading to a reduction of electricity consumption by 18.6%. An economic assessment was done based on an investment value of 100 million Thai Baht, project life of 25 years, and a system maintenance fee of 0.5% of investment value per year (500,000 Thai Baht per year). These gave a net present value (NPV) of 260 million Thai Baht and a payback period of 13 years. Other socio-economic and environmental benefits were also identified but their economic values were not assessed and as such not included in the economic evaluation.
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