With the rapid urbanization and electrification in recent years, investment and construction in power infrastructure have been strengthened. Although it has a positive impact on economic development and energy distribution, the ecological and landscape impacts brought by the construction of related auxiliary facilities are often overlooked. To achieve a harmonious relationship between energy development and ecological protection, this study aims at the impacts of power transmission and transformation projects on ecological corridors and landscape connectivity. By coupling the morphological spatial pattern analysis and the least-cost path model, the regional ecological corridors are first constructed. In addition, the influences of power transmission and transformation projects on landscape connectivity can be evaluated and compared. This framework is verified through a case study of Shandong Province in China. The results indicated that power transmission and transformation projects had a significant impact on the migration resistance of landscapes, impeding the formation of ecological corridors for species. Additionally, these projects have exerted a pronounced cutting effect on landscapes, reducing ecological corridor permeability and landscape connectivity. It is crucial to preserve the habitats of major ecological sources while maintaining and developing the ecological nodes along the key ecological corridors. The findings contributed to the harmonization of regional energy planning and ecological protection, providing a reference for the future layout of transmission and transformation project construction and development.

The water–energy nexus has become a key factor in the implementation of low-carbon green development, which has led to the need for exploring effective management within the coupled integrated system with multi-energy flow supplies. In this study, the coupled relationship between water resources and energy in the integrated energy system was systematically analyzed, and a system operation optimization model was proposed through comprehensively considering cold, heat and electricity load, and nine kinds of energy conversion and supply equipment/technology from the perspective of a water resources and energy nexus in a typical industry park. The system operation scheme, energy supply mode, net benefit and water resource consumption under different water resource control scenarios were obtained. The results show that water resource control would directly bring about a directly positive influence on renewable energy utilization and energy storage reduction, and that a system’s external dependence and benefits, renewable energy utilization potential and other factors in an integrated energy system should be comprehensively considered. The development of more effective control indicators could be better to promote the effectiveness of bidirectional regulation in a water–energy nexus.