伟明环保：垃圾发电项目不同期间的营业收入可能会受各类停机检修技改、入厂垃圾量、垃圾热值波动和季节性等因素影响

Group 1 - The core viewpoint of the article highlights that the revenue of waste-to-energy projects can be influenced by various factors such as maintenance downtime, the volume of waste received, fluctuations in waste calorific value, and seasonal variations [2] - The recent revenue fluctuations of Lhasa Shengyun are primarily attributed to maintenance downtime [2]