In China, the longest ultrahigh-voltage power line stretches more than 2,000 miles from the far northwest to the populous southeast — the equivalent of transmitting electricity from Idaho to New York City.

The line starts at solar panel
farms in Xinjiang, one of the
sunniest regions in China...
Beijing
Dunhuang
Lanzhou
Populated areas
Luoyang
CHINA
Shanghai
Chengdu
... and ends in Anhui,
powering major cities
along the coast.
Guangzhou
200 miles
The power line starts in a remote desert in northwest China, where vast arrays of solar panels and wind turbines generate electricity on a monumental scale. It snakes southeast, following an ancient river between mountain ranges before reaching Anhui Province near Shanghai, home to 61 million people and some of China’s most successful electric car and robot manufacturers.