China lays foundation for first experimental UHV grid project

China laid foundation for the nation's first experimental project of Ultra High Voltage (UHV) grids to transmit power for a long distance through 1,000-kilovolt alternating grids.

At the ground breaking ceremony held in Changzhi city of North China's Shanxi Province, Liu Zhenya, general manager of the State Grid Corporation, said that developing UHV grids is good for China to distribute its natural resources in a more proper way.

The project, wandering for 653.8 kilometres and running across China's Yellow River and the Hanjiang River, will transmit power produced in Shanxi Province, China's largest coal base to Nanyang city of Central China's Henan Province and then to Jingmen city of Central China's Hubei Province.

With a planned investment of USD 713 million, the grid is designed to have a rated voltage of 1,000-KV, a maximum operational voltage of 1,100 KV and a transmission power of five million KW, the Xinhua said.

Over two-thirds of China's water resources are distributed in West China's Sichuan and Yunnan provinces and the Tibet Autonomous Region, and over two-thirds of the coal resources are found in North China's Shanxi and Shaanxi provinces and the Inner Mongolian Autonomous Region.

East and South China have the lowest reserves of energy and other natural resources. But as they boast the most rapid economic growth, they have the highest demand for energy.

Chief Economist of the State Grid Liu Zhaoshao said if successful they will build more UHV grids transmitting power from big coal-fired power or hydropower generators to electricity-thirsty regions from 2006 to 2010.

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