台灣農地違章建築工廠是歷史共業，但是農地違章建築工廠目前確實數量，誰也說不清楚，經濟部推測有4萬5千家，農委會民國106年估計有13多萬家，依照農委會每年公佈的疑似農地工廠推估，近5年來至少增加了2萬多家農地違章工廠[1]。倘若加上合法鐵皮屋工廠，全國鐵皮屋工廠估計至少約有30萬家以上。本研究藉由太陽能節能玻璃(HISG 10%)同時具備發電、採光與隔熱節能特性，透過發電軟體(PV SOL2020)與耗能軟體(EQUEST)模擬分析，於桃園市龍潭區所取得的2F鐵皮屋工廠建築物建造執照進行相關能源發電及耗能分析，以瞭解傳統鐵皮屋工廠與太陽能節能鐵皮工廠屋頂，兩者之發電與節能差異與最佳化，藉此來達成NEZB近零能耗建築節能減碳之方法目標，及提高取得候選綠建築證書增加容積獎勵，促進都市更新提高建築物安全。研究結果發現就發電與照明、空調、風扇耗能表現上，太陽能節能玻璃HISG 10%，因在遮蔽係數降低及總熱傳導係數也降低情形下，相較於一般傳統鐵皮屋更能有效阻隔熱傳導與太陽輻射熱能，經模擬計算其中太陽能節能玻璃(HISG 10%)之總耗能21042KWH，而傳統鐵皮屋之總耗能32987KWH。每年節省耗能高達(32987-21042)=11945KWH。
因太陽能節能玻璃具有良好的發電、採光與隔熱性能，優異節能效益才能如此顯著。倘若全國30萬間鐵皮屋工廠屋頂皆安裝太陽能節能發電玻璃HISG，並且透過能源最佳化設計後，太陽能節能玻璃投資報酬率可以符合一般投資報酬要求，全國將能節省大量耗電。如果再加上綠能獎勵政策或銷售綠電憑證後相對等同提高電價。冀望本研究結果可以促進建物一體太陽光電(BIPV)建材推廣，進而達成近零能耗能建築之節能減碳與環境永續的終極目標。

No one knows the exact number of illegal construction factories on agricultural land in Taiwan. The Ministry of Economic Affairs estimates that there are 45,000 factories, and the Agricultural Committee estimated that there were more than 130,000 in 106. According to the Agricultural Committee It is estimated that there have been more than 20,000 illegal farmland factories in the past five years according to the estimates of suspected farmland factories published every year [1]. If legal tin house factories are included, it is estimated that there are at least 300,000 tin house factories nationwide. In this study, the solar energy-saving glass (HISG 10%) has the characteristics of power generation, lighting and heat insulation at the same time, through the simulation analysis of power generation software (PV SOL2020) and energy consumption software (EQUEST), the 2F iron sheet obtained in Longtan District, Taoyuan City The relevant energy generation and energy consumption analysis is carried out on the construction license of the house factory building, so as to understand the difference and optimization of the power generation and energy saving between the traditional tin house factory and the solar energy-saving tin factory roof, so as to achieve the NEZB near zero energy consumption building. The goal of energy saving and carbon reduction, and increase the volume reward for obtaining the candidate green building certificate, promote urban renewal and improve building safety. The research results found that in terms of power generation, lighting, air conditioning, and fan energy consumption, solar energy-saving glass HISG 10%, because the shading coefficient is reduced and the total heat transfer coefficient is also reduced, compared with the general traditional iron house. The total energy consumption of solar energy-saving glass (HISG 10%) is 21042KWH, and the total energy consumption of traditional iron house is 32987KWH. Save energy up to (32987-21042)=11945KWH.
Because solar energy-saving glass has good power generation, lighting and heat insulation properties, the excellent energy-saving benefits can be so remarkable. If the roofs of 300,000 tin house factories in the country are installed with solar energy-saving power generation glass HISG, and through energy-optimized design, the return on investment of solar energy-saving glass can meet the general investment return requirements, and the country will be able to save a lot of power consumption. If coupled with the green energy incentive policy or the sale of green power certificates, it is relatively equivalent to increase the electricity price. It is hoped that the results of this study can promote the promotion of building-integrated photovoltaic (BIPV) building materials, and then achieve the ultimate goal of energy saving, carbon reduction and environmental sustainability in near-zero energy buildings.

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