Energy · 2010

Ultra-high-voltage DC lines

China moves hydro and solar power 2,000 km across the country at 800 kV.

The Xiangjiaba to Shanghai line entered service in 2010 at plus or minus 800 kV and 6.4 GW. In 2019 the Changji to Guquan line reached 1,100 kV over 3,300 km, letting remote western renewables supply eastern cities.

See it in the living tree Wikipedia

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 1

HVDC transmission 1954

What it led to 1

Three Gorges Dam 2012

Related measurements

The dashed line marks when it first worked.

Share of electricity from low-carbon sources Latest: 42.6 % (2025) Source: Our World in Data

Installed solar capacity Latest: 2.4k GW (2025) Source: Our World in Data

World electricity generation Latest: 31.8k TWh (2025) Source: Our World in Data