Global optimization of photovoltaic tilt angles: reducing solar power losses using reanalysis data
文献类型：期刊论文
| 作者 | Lu, Ning1,2; Qin, Jun1,2 |
| 刊名 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 20期号:3页码:34054 |
| 关键词 | PV tilt angle global optimization empirical cubic relation ERA5 radiation data solar power loss |
| ISSN号 | 1748-9326 |
| DOI | 10.1088/1748-9326/adbb05 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Solar photovoltaic (PV) systems play a crucial role in addressing the growing demand for clean energy and mitigating climate change impacts. However, PV system performance is heavily influenced by the incident solar radiation on panel surfaces, with suboptimal tilt angles leading to significant power losses. Despite the critical importance of tilt angle optimization, many existing PV installations worldwide operate suboptimally due to simplified estimation methods or lack of site-specific optimization. This study presents a novel hybrid approach combining empirical and computational methods to determine optimal annual and monthly PV panel tilt angles using long-term hourly ERA5 reanalysis radiation data. Our results validate the effectiveness of ERA5 data for global tilt angle optimization, demonstrating a strong correlation with established cubic relations. Analysis of spatial and temporal patterns of optimized tilt angles reveals the influence of latitude, local atmospheric conditions, and seasonal variations on optimal PV panel inclination. A comprehensive assessment of the global PV inventory in 2018 shows that 44.6% of installed capacity is located in regions with solar power losses exceeding 1%, resulting in a total loss of 6154 GWh yr-1-equivalent to Luxembourg's annual electricity consumption. Comparison between optimized tilt angles and those estimated using empirical cubic schemes reveals significant discrepancies in some regions, with annual power losses surpassing 3% when using empirical methods. These findings underscore the importance of accurate, location-specific tilt angle optimization to minimize solar power losses and maximize global PV inventory performance. Our research highlights the potential for substantial energy yield improvements through widespread adoption of optimized tilt angles in PV system design and retrofitting, contributing to enhanced renewable energy production and accelerated progress towards global sustainability goals. |
| URL标识 | 查看原文 |
| WOS关键词 | RADIATION ; INCIDENT ; DESIGN |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001439381000001 |
| 出版者 | IOP Publishing Ltd |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213297]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Lu, Ning |
| 作者单位 | 1.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Resou, 1 Wenyuan Rd, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Lu, Ning,Qin, Jun. Global optimization of photovoltaic tilt angles: reducing solar power losses using reanalysis data[J]. ENVIRONMENTAL RESEARCH LETTERS,2025,20(3):34054. |
| APA | Lu, Ning,&Qin, Jun.(2025).Global optimization of photovoltaic tilt angles: reducing solar power losses using reanalysis data.ENVIRONMENTAL RESEARCH LETTERS,20(3),34054. |
| MLA | Lu, Ning,et al."Global optimization of photovoltaic tilt angles: reducing solar power losses using reanalysis data".ENVIRONMENTAL RESEARCH LETTERS 20.3(2025):34054. |
入库方式： OAI收割
来源：地理科学与资源研究所
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