WER Contest has adopted the theme of "Energy Revolution" for the year of 2022. The continuous expansion of the global economy, the great development of science and technology and the robust innovation have brought great convenience and amazing lifestyle to our life. At the same time, more and more people have realized that the energy crisis caused by excessive use and dependence on non-renewable resources is imminent. The massive consumption of energy has brought about a sharp increase in carbon dioxide emissions, leading to the deterioration of the global climate, for which mankind has also paid a painful price. The exploitation and use of traditional energy will be unsustainable in the end.
The energy problem will become a complex, changeable, uncertain and severe challenge facing the future. We have to turn our attention to the clean energy recycled such as solar energy, wind energy, biomass energy and hydropower. It was once thought that the utilization of renewable energy was out of reach. Today, with the development and iteration of science and technology, we are bound to master the recycling of clean energy and realize carbon neutralization to zero emission. This is the common expectation of mankind; It is also a huge change from non-renewable energy to clean energy. It is a great change that has not been seen in a century.