Techno-Economic Assessment of a 100 kWp Solar Rooftop PV System for Five Hospitals in Central Southern Thailand

Rawit Khamharnphol, I. Kamdar, J. Waewsak, Somphol Chiwamongkhonkarn, Sakrapee Khunpetcha, C. Kongruang, Y. Gagnon
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引用次数: 3

Abstract

This paper presents a techno-economic assessment of a 100 kWp solar rooftop photovoltaic (PV) system at five hospitals in central southern Thailand.  The system encompasses 100 kWp PV panels, 100 kW grid-tied inverters and balance of system (BOS) under the grid code of the Provincial Electricity Authority (PEA).  The latest PV technology of bifacial mono-crystalline solar panels, inverters and BOS were simulated along with the Meteonorm 7.3 database using the PVsyst simulation toolkit with different tilt angles, orientations, solar radiations and ambient temperature.  The technical aspects of solar rooftop PV power generation systems include the annual energy output and the performance ratio (PR) under IEC standard.  Further, an economic analysis of the model was examined using a cost benefit analysis (CBA) and various assumptions.  Four main financial criteria, i.e., benefit cost ratio (BCR), net present value (NPV), internal rate of return (IRR), and payback period (PBP) were evaluated under three different scenarios: (1) self-consumption scheme, (2) feed-in tariff (FiT) scheme, and (3) private power purchase agreement (PPA) scheme.  Finally, the levelized cost of energy (LCOE) was also calculated.  The results reveal that the Takua Thung hospital is characterized by the maximum average global horizontal irradiation (GHI) and the maximum annual produced energy of 199 kWh/m2 and 164.8 MWh/year, respectively.  The PR calculated for all hospital sites is above 85%. The outcomes of the financial analysis show that the optimum scenarios are PPA and FiT schemes.  The LCOE analysed in this study indicates that the Takua Thung hospital site has the lowest LCOE at 2.47 THB/kWh (0.07 USD/kWh).  This research confirms the potential for hospitals and stakeholders in central southern Thailand for investments in solar rooftop PV systems
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泰国中南部五家医院100 kWp屋顶太阳能光伏系统的技术经济评估
本文对泰国中南部五家医院的100kWp太阳能屋顶光伏系统进行了技术经济评估。根据省电力局(PEA)的电网规范,该系统包括100kWp光伏电池板、100kW并网逆变器和系统平衡(BOS)。使用PVsyst模拟工具包,在不同倾角、方位、太阳辐射和环境温度下,对双面单晶太阳能电池板、逆变器和BOS的最新光伏技术以及Meteorm 7.3数据库进行了模拟。太阳能屋顶光伏发电系统的技术方面包括IEC标准下的年发电量和性能比。此外,使用成本效益分析(CBA)和各种假设对模型进行了经济分析。在三种不同的情况下,评估了四个主要的财务标准,即效益成本比(BCR)、净现值(NPV)、内部收益率(IRR)和投资回收期(PBP):(1)自耗方案、(2)上网电价(FiT)方案和(3)私人购电协议(PPA)方案。最后,还计算了平准化能源成本(LCOE)。结果表明,Takua Thung医院的最大平均全球水平辐射(GHI)和最大年发电量分别为199kWh/m2和164.8MWh/年。所有医院场所的PR计算均在85%以上。财务分析结果表明,最佳方案是PPA和FiT方案。本研究中分析的LCOE表明,Takua Thung医院的LCOE最低,为2.47泰铢/千瓦时(0.07美元/千瓦时)。这项研究证实了泰国中南部医院和利益相关者投资太阳能屋顶光伏系统的潜力
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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