China’s Plan to Build the World’s Biggest Supergrid

Photo: State Grid Corp. of China

Big Picture: This Beijing dispatch center controls most of China’s ultrahigh-voltage lines and monitors renewable energy use. State Grid is also building a world-leading set of ultrahigh-voltage AC lines, to help eastern China’s regional AC grids absorb the output from those massive lines. In January 2009, State Grid energized its first UHV demonstration line—a 650-km, 1,000-kV UHV AC transmission line that linked the North China and Central China regional grids.

Source: spectrum.ieee.org