State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
J Environ Manage. 2024 Aug;366:121820. doi: 10.1016/j.jenvman.2024.121820. Epub 2024 Jul 13.
Northwest China has abundant solar energy resources and extensive land, making it a pivotal site for solar energy development. However, restrictions on site selection and severe weather conditions have hindered the establishment and operation of photovoltaic (PV) power stations. Previous studies have not considered meteorological factors when evaluating site suitability, leading to research gaps in identifying suitable areas and establishing indicator systems. We aimed to address these gaps by considering seven factors constraining the construction of centralized PV power stations (CPPS) and developing an indicator system based on terrain, climate, soil, and economic factors. Furthermore, we conducted analyses to quantify the solar energy generation potential (SEGP), carbon emissions reduction benefits, and land utilization potential at different sites. The findings indicate that areas rated as very suitable and extremely suitable comprised the largest proportion (62.35%) of site suitability. The correlation between site suitability and electricity consumption was largely non-significant, highlighting the need for enhanced coordination. Additionally, we forecast the electricity consumption in Xinjiang, Gansu, Inner Mongolia, Qinghai, Ningxia, and Shaanxi for 2030 to be 56.62, 19.86, 54.54, 13.59, 15.96, and 33.34 ( × 10 kWh), respectively, with corresponding carbon emissions reduction potentials of 20.2, 7.1, 19.4, 4.8, 5.7, and 11.9 ( × 10 kg). Consequently, PV carbon reduction and land utilization potential are substantial.
中国西北地区拥有丰富的太阳能资源和广阔的土地，是太阳能开发的关键地区。然而，选址限制和恶劣的天气条件限制了光伏（PV）电站的建设和运行。以前的研究在评估选址适宜性时没有考虑气象因素，因此在确定适宜地区和建立指标体系方面存在研究空白。我们旨在通过考虑制约集中式光伏电站（CPPS）建设的七个因素，并基于地形、气候、土壤和经济因素开发指标体系来解决这些空白。此外，我们还对不同地点的太阳能发电潜力（SEGP）、碳减排效益和土地利用潜力进行了量化分析。研究结果表明，非常适宜和极适宜地区占选址适宜性的最大比例（62.35%）。选址适宜性与用电量之间的相关性在很大程度上不显著，这表明需要加强协调。此外，我们预测了 2030 年新疆、甘肃、内蒙古、青海、宁夏和陕西的用电量将分别达到 566.2、198.6、545.4、135.9、159.6 和 333.3（×10 kWh），相应的碳减排潜力分别为 202、71、194、48、57 和 119（×10 kg）。因此，PV 的碳减排和土地利用潜力巨大。
