State Grid Corporation of China
With the approval of the State Council, the State
Grid Corporation of China (SG) was established on the
basis of a sum of enterprises and institutions formerly
owned by the State Power Corporation of China. Its main
duties and responsibilities are: to manage and operate
the state-owned power grid assets and the related
businesses entrusted by the State, to invest in, construct
and run the trans-regional transmission and substation
and interconnection system, to manage and operate the
transmission and substation assets of trans-regional
interconnection, to be responsible for the construction
of transmission and substation project of the Three
Gorges, and to be responsible for the dispatching and
trading between regional power networks.
Now SG possesses five large power networks
_Northeast, Northwest, North China, East China and
Central China and three independent provincial
(regional) power grids. 500 kV backbone frames have
been formed in the trans-provincial grids and Shandong
Power Grid, except the 330 kV grids frame in the
Northwest of China. These grids cover most urban and
rural areas in China except those located in Guangdong,
Guangxi, Yunnan, Guizhou, Hainan and Taiwan,
providing consumers of power with excellent electric
energy and reliable services. At present, SG possesses
160,000 km transmission lines at 220 kV and above,
among which 30,000 km at 500 kV, 10,000 km at 330
kV, 12,000 km at 220 kV, with a total substation capacity
up to 430 GVA at 220 kV and above. Now, SG is positively
working on the program of ¡°transmission from west to
east, supply between north and south, nationwide
interconnection¡±. The short-term goal of SG is to take
the Three Gorges Power Plant as the hub, with multipoint
interconnection of north and south grids, close connection
of longitudinal channels, high operation flexibility and
prevention of blackouts in large areas extends the grid
in four directions of east, west, north and south, so as to
form the three major power supplying routes of north,
middle and south.
Currently, there are 728 thousand employees
totally working for SG, among which 552 thousand
employees (71.1%of the total) are engaged in the field
of industry, 157 thousand employees (21.6%of the total)
are engaged in the field of architecture and 14.6 thousand
employees (2%of the total) are working in the
research and design institutes.
China Southern Power Grid Corporation Ltd.
With the approval of the State Council, China
Southern Power Grid Corporation Ltd. (CSG) is a
co-funded and established corporation by the investment
subjects on the basis of the former Guangdong Provincial
Power Group Corporation, the former SP¡¯s affiliated
Southern Company, Yunnan Provincial Power Group
Corporation Ltd, Guizhou Provincial Power Corporation
as well as Hainan Provincial Power Corporation. The
investment subject was authorized by Guangdong
provincial government, the former SP and Hainan
provincial government. CSG is administered by the
central government, with independent budgetary status.
The total assets of the new power grid operator surpass
203.8 billion yuan (US$24.10 billion) and its registered
capital is 60 billion yuan (US$7.23 billion). Its main
responsibilities are: to operate and manage power grid
according to the law, ensure reliable power supply, plan
the development of regional power grid, foster regional
power market, manage power dispatching and trading
center, and carry out power dispatching according to
power grid operation laws and the market regulations.
CSG is one of the regional power grids with the
largest installed capacity in China, also a power grid
with abundant developmental potential. It covers
Guangdong, Guangxi, Yunnan, Guizhou and Hainan five
provinces (regions), linking with Hong Kong and
Macao. There are hydropower, coal-fired power, nuclear
power, pumped storage, oil-fired power, gas-fired
power, wind power etc. various power sources in the
grid. As of the end of 2002, the total installed generating
capacity amounted to 63,880 MW (not including Hong
Kong and Macao), the length of 500 kV transmission
lines totaled 7985 km with substation capacity of
32,400 MVA; the length of 220 kV transmission lines
totaled 22,677 km, with substation capacity of 67,680
MVA. In 2002, the unified dispatched peak load of whole
grid amounted to 34,200 MW.
CSG will play a positive role in implementation of
marker project of large scale development in the west
regions_¡°sending power from west to east¡± strategy
and in the realization of ¡°east-west win-win¡± target. By
the end of 2002, CSG had accumulatively sent electricity
of 52.3 TWh and 24.2 TWh from the western regions to
Guangdong and Guangxi respectively, sent out electricity
of 23.4 TWh from Yunnan and Guizhou power grids.
Now, Guangdong Province and the western provinces
(region) have signed the frame agreement on enlarging
the scale of ¡°sending power from west to east¡± in the
Tenth Five-year Plan and after years.
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