The Chinese are going heavily into solar and other alternative energy sources.  Are they giving up oil and coal?  Of course not!  Just taking the long view for the future needs of their growing economy.  The Saudis are also developing solar and alternative energy sources.  I'd guess it will leave them more oil to sell to Europe and other countries in the world.  Meanwhile - we are lagging behind.  For those who think this is simply about climate change - no - it's about keeping their economies strong and growing $$$$$$$$$$$.  YMMV