China leads the world in almost all types of renewable energy, in research, in manufacturing, and in market adoption. Biggest wind farms, and solar farms are all in China.
A few days ago, China's Academy of Engineering Physics created a commercially viable grid scale implimentation of nuclear fusion reactor (artificial sun). A prototype plant was just approved by the government and will be completed in 2028. It's wildly believed to be viable because it uses a very different approach to solve the fusion problem, where energy spent sustaining the core must be lower than the energy generated by the core. It will be the world's first. After that human civilization will enter a new era.