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IPFS News Link • Energy

China's giant ultra-high voltage grid is ambitious as its high speed rail

• by Brian Wang

A 100 mile (160 km) power line at 765 kilovolt carrying 1000 MW of power can have losses of 1.1% to 0.5%. A 345-kilovolt line carrying the same load across the same distance has losses of 4.2%. China's 1.1 megavolt line can have power losses that 10 to 20 times less than 345 kilovolt lines.

1.1 megavolt transformer

ABB helped create the 1.1 megavolt transformers and key equipment for world's first 1,100 kilovolt (kV) project in China.

When fully operational the UHVDC link will be capable of transporting 12,000 megawatts of electricity over a distance of 3,000 km from the Xinjiang region in the Northwest, to Anhui province in eastern China. This vast amount of electricity is equivalent to twice the average annual power consumption of Switzerland.