In recent years, the rapid development of the national economy has become inseparable from the influence of traditional fossil energy, such as coal, oil and natural gas. However, fossil energy has a variety of negative impacts, including environmental pollution, global warming and damage to economic security. In this regard, it is important to break through the key bottlenecks of pollutants, carbon emissions and energy grade loss caused by the fossil energy utilization mode and build a clean and low-carbon energy utilization system, based on solar energy, wind energy, geothermal energy, etc., to achieve the goal of environmental protection and energy technology revolution. Clean and low-carbon energy research has achieved major successes in the past decade and is expected to drive the development of other renewable energy sources. However, although significant progress has been made in regard to clean and low-carbon energy in recent years, there are still major challenges in the implementation of new theories, new methods and new demands. From this perspective, this topic aims to contribute to the clean and low-carbon energy agenda by enhancing scientific and multidisciplinary work, aiming to improve knowledge and performance in harvesting clean and low-carbon energy.