China builds the world's largest power grid

Home>>China

Last updated at: (Beijing Time) Tuesday, September 23, 2003

China builds the world's largest power grid

DISCUSSION

CHINESE

SEND TO FRIEND

September 20 saw the successful connection of the power grids of north and central China, being the first of its kind and forming the world biggest grid. Under unified direction of the state, mutual electricity transmission between the two grids were also realized.

Connecting the grids nationwide will help optimize the distribution of power resources, realize mutual electricity supply, support upon accidents and trans-regional transmission and bring closer power market and energy bases, expert said. Before this, grids in north, northeast China, as well as those in central and east China were also connected. The linkage between north and central China grids is an important step in nationwide power connection, for which the State Grid Corporation and the North China Power Group made a lot of preparatory work.

Will a failure in a regional grid bring national effect if all grids nationwide are connected? Expert explains that the national connection is just like taking hands among major grids, but without mutual power transmission. If one of them fails other grids joining with it will disconnect automatically to ensure safety. However, when needed, other grids could connect again under state unified direction to supply electricity to power failed areas as soon as possible. This in fact strengthened safe operation of the nation's major grids.

In the past the central and northern grids could not supply each other due to their difference in working load. Now, after being connected, the network will join eastern grid (including Fujian) through direct current as well as the southern grid through the Three Gorges--Guangdong direct current project which is now under construction, thus forming the framework of the national grid connection. This means that in the future electricity generated in the Three Gorges in central China will be directly transmitted to Beijing area.

The successful connection, as is known, forms a 4600-km power corridor which starts from the northeast grid and runs across northern and central China, covering 14 provinces and cities. Its transmission distance is comparable with Russia's huge Far East grid, but its 140 million KW installed capacity is much bigger than the latter. So it can be called the largest grid in the world.

By PD Online Staff Li Heng

Questions?Comments? Click here

China builds world's biggest power grid: report

China Mulls Market Strategies for Power Shortages

China's Nuke Power to Embrace a New Era

US slandering China as narcotics producer is groundless ( 3 Messages)

China trains government spokespersons ( 2 Messages)

Foreigners see social graces and disgraces in China ( 8 Messages)

Chinese tourists' unsocial behavior sparks concern at home ( 7 Messages)

Chinese Premier calls for improvement of rural education ( 2 Messages)