Last I checked, China's been developing every energy source known to man (except O&G, because they don't have a domestic supply of O&G except in the contested waters of the SCS)...

China is the world leader in new nuclear development, new hydro development, solar panel manufacturing, wind turbine manufacturing, solar panel deployment, wind turbine deployment, electric vehicles, and carbon capture+storage.

Maybe if other economies would help pick up the slack? China's been firing on all cylinders towards green tech for decades, but it turns out that urbanizing and industrializing 1 billion people to a Western standard of living is really fucking energy-intensive. Meanwhile, everyone else is just sitting on their ass and watching.