光伏装置被广泛部署在极低产量风险的地区

IF 8.1 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Qianzhi Wang, Kai Liu, Wei Xie, Tariq Ali, Jinshan Wu, Ming Wang
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引用次数: 0

摘要

光伏(PV)装置作为一种有前途的可再生能源在世界范围内迅速而广泛地部署。然而,天气异常可能会导致极低的发电量,从而使它们面临供应安全方面的挑战。利用1986年至2021年的天气数据再分析和高分辨率的全球光伏装置库存,我们评估了极端低产量(ELP)事件对不同地区的影响。我们的研究结果表明,60°N至60°S之间的区域平均每年经历27次ELP事件,其中17%为高强度事件。光伏安装密集的地区——包括中国南方、中欧和北欧、中美和东欧以及日本——受到的影响尤其严重。这些地区总共拥有全球大约一半的光伏装置,其中44%的ELP事件是高强度的。维持相当于平均事件强度的每日备份供应可以恢复不同站点间39%到81%的事件。这一策略有助于确保稳定的能源供应,尽管极端天气事件不可预测。根据一项使用天气数据和光伏装置清单的分析,中国南方、中欧和北欧、美国中部和东部以及日本是光伏装置密集的地区,它们特别受到极低产量事件的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Photovoltaic installations are extensively deployed in areas at risk of extremely low production

Photovoltaic installations are extensively deployed in areas at risk of extremely low production
Photovoltaic (PV) installations have rapidly and extensively been deployed worldwide as a promising alternative renewable energy source. However, weather anomalies could expose them to challenges in supply security by causing very low power production. Using reanalysis weather data from 1986 to 2021 and a high-resolution global inventory of PV installations, we assess the impact of extreme low-production (ELP) events across various regions. Our results reveal that regions between 60°N and 60°S experience an average of 27 ELP events annually, with 17% of these events being high-intensity. Regions with dense PV installations—including Southern China, Central and Northern Europe, Central and Eastern America, and Japan—are particularly affected. These areas, which collectively host approximately half of the global PV installations, see 44% of ELP events being high-intensity. Maintaining a daily backup supply equivalent to the average event intensity could recover 39% to 81% of events across different sites. This strategy helps ensure a stable energy supply despite the unpredictability of extreme weather events. Southern China, Central and N Europe, Central and Eastern America, and Japan are areas with dense photovoltaic installations, and they are particularly affected by extremely low production events, according to an analysis that uses weather data and an inventory of photovoltaic installations.
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来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
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