改良型太陽光電系統應用於溫網室之理論設計與發電效益評估之研究

A STUDY ON THE THEORETICAL DESIGN AND ELECTRICITY GENERATION BENEFIT ASSESSMENT FOR IMPROVED PHOTOVOLTAIC SYSTEMS DEPLOYED IN SCREENHOUSES AND GREENHOUSES

郭昆璋(Kun-Chang Kuo) ； 廖敏勝(Min-Sheng Liao) ； 陳柏翰(Po-Han Chen) ； 劉承岳(Cheng-Yue Liu) ； 徐暄翔(Hsuan-Hsiang Hsu) ； 王人正(Jen-Cheng Wang) ； 江昭皚(Joe-Air Jiang)

《農業機械學刊》 24卷1期 (2015/03) Pp. 1-22

摘要

經濟部於民國101年展開「陽光屋頂百萬座」計畫後，國內的太陽光電產業即開始蓬勃地發展。為了進一步響應國家再生能源政策，農委會於102年起開始修改「申請農業用地作農業設施容許使用審查辦法」，放寬諸多農業設施裝置綠能設備之限制。但是，此審查辦法卻造成部分投機廠商打著結合農地經營之名號行農地種電之實，同時造成國家綠能與農業政策之相悖離、及農業主管機關與光電業者之衝突。因此，如何找出二者互蒙其利發展之平衡點，實乃目前國家重大政策的推動上非常重要的課題之一。為解決上述矛盾並推廣太陽光電系統應用於溫室與網室等農業設施，本研究基於半導體理論提出一套太陽光電系統發電效能演算法，用以探討日照入射角度的影響與光電系統發電效能評估。此外，本研究亦提出一項改良型太陽光電系統之設計，應用於溫、網室可使室內部分土地不受太陽能模組遮蔽而損失日照。本研究所提出演算法亦可精確估算太陽能模組在不同傾斜角度之下之光電系統年發電產量，可應用於不同斜度屋頂型態之溫、網室等農業設施，並進一步分析減碳效益與附加經濟效益評估、提供國內農業主管機關、溫網室與光電業者客觀、量化之研究數據，達成兼顧農地農用與綠能種電雙贏的目標。

關鍵字

農地種電 ； 半導體理論 ； 溫室 ； 網室 ； 日照入射角度 ； 發電效能評估

並列摘要

Since the ＂one million sunshine roofs＂ project was initiated by the Ministry of Economic Affairs in 2012, the photovoltaic (PV) industry in Taiwan has been blooming. To promote the national policy on renewable energy, the Council of Agriculture amended the Agricultural Development Act (ADA) by lifting some regulations on the agricultural facilities equipped with renewable energy installations. However, the ADA allowed some opportunistic famers to harvest energy instead of cultivating crops. Such an act also created a rift between national renewable energy policies and agricultural policies, and many conflicting opinions were held by government officials responsible for agricultural administration and enterprises from the PV industry. Thus, seeking a win-win solution has become one of the important issues for the promotion of major national policies. To encourage agricultural facility owners, including greenhouses and screenhouses, to adopt PV systems, this study conducted an electricity generation benefit assessment for PV systems based on the semiconductor theory and sunlight incident angles. Additionally, this study proposed an improved design for PV systems used in screenhouses and greenhouses. The design would not block the sunshine, so the screnhouses and greenhouses can still benefit from natural illumination. The proposed approach can accurately estimate the annual electricity generation of PV systems when the incident angle varies, so it can be applied to the roofs of screenhouses and greenhouses with different slopes. The proposed approach can also provide objective and quantitative information for agricultural authorities, owners of agricultural facilities, and PV system users, and achieve the common goal perused by both agricultural and renewable energy industries.

並列關鍵字

Power harvesting in farms ； Semiconductor theory ； Screenhouses ； Greenhouses ； The sunlight incident angle ； Electricity generation benefit assessment