James Conca, scientist in the field of earth and environmental sciences. Contributor to Forbes: China now has more wind and solar energy than the rest of the world - combined. But transmission bottlenecks, coal’s undue influence, and market set-up have prevented large amounts of renewable electricity from reaching the Chinese grid. Renewables are increasing faster than the infrastructure to support them. So it’s not surprising that China would keep building huge hydro plants as well as tripling their nuclear power over the next decade. The largest power plants are nearly all hydro dams and nuclear.