Investment Benefit Evaluation of Solar Power System in Taiwan

• Main Authors: Chen,Kun-Cheng, 陳琨城
• Other Authors: Huang,Shyh-Chang
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/65077075110269087472

碩士 === 國立交通大學 === 工學院工程技術與管理學程 === 103 === This Study is based on the applicability of Renewable Energy Power Generation Device Setting Management and divided Taiwan into six metropolitans. Using Excel application to assume the financial parameters estimates, according to system capacity set up range of type III, wholesale price and other conditions, follow up with Net Present Value, Internal Rate of Return, Discounted Payback and Self-Liquidating Ratio of financial decision criteria through the way of one’s own or financing in order to analysis the benefit of solar energy power system to set up in each region. By case sensitivity analysis, it will sort out the risk factors of each graduation. In order to make the financial assessment valuable, it will use solar insolation data from Central Weather Bureau start from 2004 to 2012 and then upload into the software PVsyst for dedicated electricity energy simulation of the amount of annual capacity of each region. And will use the Work Breakdown Structure (WBS) and unit price of the valuation to budget the implementation cost which is closer to the market of the system cost. After analysis, the building of Chiao Tung University Kuang-Fu campus is located at a scattered pattern which belongs to type I and II. It should be appropriate to relax restriction for parallel and wholesale, in order to achieve multiple benefits of economic investment and carbon reductions. We can find out from the part of program cost and benefits, two major equipments which are modules and inverters will account for 50% of total manufacturing cost; and annual generated capacity will be 80% of daily insolation, which could get a quick estimate of manufacturing cost and annual generated capacity by this percentage in initial plan. Also would get to know that, the annual generated capacity and the unified set of 1,250kWh degrees of wholesale formula was 24.45~31.23%, which was diverge from the annual capacity of northern part of Taiwan such as Hsinchu and Taipei area, which disobey the spirit of encourage private participation to renewable energy policy. After benefit calculating, only in Chiayi, Taiwan with the capacity of 98kWp and 497kWp respectively for financing policy has investment benefit. Internal Rate of Return is greater than Weighted Average Cost of Capital 5.62%, Net Present Value is greater than 0, Discounted Payback is less than the operation period of 1/2 (approximately 10 years), and Self-Liquidating Ration is greater than 1. If the case is not confined to set up the system in same area, it can integrate five of each 98kWp into a 490kWp capacity system, and it will have lower purchase price and higher wholesale price than compared to the same capacity but with each 98kWp, which will have maximum benefit of the investment. Sensitivity analysis shows that the annual generation capacity of the system has the highest risk, followed with implementation costs, and the proportion of loans, so investors should make a strict control of this three impact factors in order to maintain the expected investment returns.