China’s Great Energy Shift Sets Mega Hybrid Plants in Motion

In China’s latest efforts to pit renewable energy against fossil fuels, it is again betting on size.

Resources such as wind and solar don’t stand much of a chance if there isn’t a way to store energy when the wind doesn’t blow and the sun doesn’t shine. So some of China’s biggest state-owned companies are pouring in billions of dollars to build massive projects that will combine the two with energy storage.
The periodic nature of renewables is a challenge because it disrupts the conventional methods for planning the daily operation of the electric grid. The idea with these hybrid projects is that they will allow a more continuous supply of clean power, which will better enable China to reduce its reliance on coal, a major source of smog and climate-warming greenhouse gases.