China to develop ultra-high voltage power grid
2005 Asia Pulse Data Source
BEIJING China will devote maximum effort
to developing an ultra-high voltage power grid so
as to complete construction of the grid by 2020, according
to the State Power Grid Corporation (SPGC).
By 2020, the ultra-high voltage power grid will transmit
more than 200 million kW of electricity, accounting
for 25% of the national total installed capacity.
According to an official in charge of the State Power
Grid Corporation, the existing power grid in China
is mainly made up by 500-kilovolt alternating current
(AC) and 500-kilovolt direct current (DC) lines, with
a maximum power transmission distance of 500 kilometers.
The ultra-high voltage power grid, with 1,000-kilovolt
AC and 800-kilovolt DC lines, will have a power transmission
distance of 1,000-1,500 kilometers, which will allow
the SPGC to better satisfy the demand for power. A
feasibility study for a pilot ultra-high voltage project
has been completed.
The ultra-high voltage power grid may save the installed
generating units 20 million kW of power, reducing
the coal consumed for generating power annually by
20 million tons.