Abstract
Rising greenhouse gases fuel global warming, triggering disasters like droughts, floods, and landslides. Efforts to reduce emissions and combat climate change focus on renewable energy (wind, wave, hydrogen, and solar). However, rapid expansion of solar facilities in mountainous regions, coupled with unchecked logging, intensifies landslides and environmental pollution. Therefore, in this study, the risk of installed solar power generation facilities was evaluated based on the precipitation in a year and rainy season only, and topographical characteristics. The annual cumulative precipitation and rainy season were calculated for 2020, and the risk of landslides caused by rainfall was evaluated through correlation with the annual landslide area. As of 2020, more than 50% of landslides occurred in the areas having a slope range of 30 - 60% and the landslide damage area was also highly correlated with the precipitation during the rainy season (R2 = 0.74). Prior to the installation of solar power generation facilities in the steep mountainous area, more strict and appropriate verification must be done. Additionally, a systematic management plan of solar power generation facilities should be investigated in a permission process.Landslide risk of mountainous solar power generation facilities versus precipitation.
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