thermal power development - Infraline

Central electricity authority Annual Report 2009-10
CHAPTER – 4
GRID MANAGEMENT
4.1 Organizational Structure in Grid
Operation and Management
Central Government has established
Regional Power Committee (RPC) in each region
in accordance with provisions of Electricity
Act, 2003 to facilitate integrated operation of
the power system in that region. The real time
operation of the power system is looked after by
the Regional Load Despatch Centres (RLDCs)
set up in the five Regions and on the national level
by National Load Despatch Centre (NLDC). The
Regional Power Committee is a conglomerate of
all the players partaking in grid operation, i.e.
Regional Load Despatch Centre, generating
companies, transmission utilities, distribution
utilities, power traders, etc. Its Secretariat is
manned by the officers of CEA. Regional Power
Committee operates through a number of Sub-
Committees, viz. Operation Sub-Committee,
Commercial Sub-Committee, Protection Sub-
Committee, System Studies Sub-Committee and
Technical Coordination Sub-Committee. The
Operation Sub-Committee meets every month to
review the grid operation in the previous month
and plan grid operation for the next month.
The Commercial Sub-Committee discusses all
commercial related issues viz. energy accounting
related matters, maters pertaining to SEMs
settlement of dues etc. The Protection Sub-
Committee discusses and finalises protection
schemes including protection coordination.
The System Studies Sub-Committee meets
periodically for the purpose of System Studies.
The Technical Coordination Sub-Committee
meets before the Regional Power Committee for
putting up matters for decision in the Regional
Power Committee. The RPCs play an important
role in planning grid operation, since they are
responsible for protection coordination, outage
planning of generating units and transmission
system, planning reactive compensation etc.
Member (GO&D), CEA is also Member of
the Regional Power Committees and guides
the Committees to arrive at amicable solutions
in case of disputes between Members of the
Committees through unbiased decisions.
The Grid Management Division of
CEA monitors the power supply position in the
country, prepares the All-India monthly power
supply position, coordinates all matters of grid
operation and management between the five
Regions, coordinates inquiry of grid disturbances,
recommends to the Ministry of Power the
quantum of allocation from the unallocated
quota of Central Generating Stations and also
coordinates the implementation of the allocation
through the Regional Power Committees. The
anticipated power supply position for the next
year known as Load Generation Balance Report
is prepared every year. CEA also prepares
Regulations containing Standards pertaining
to Grid and connectivity to it. Regulations for
operation of inter-State transmission system are
specified by the Central Electricity Regulatory
Commission.
4.2 Power Supply Position
The Central Electricity Authority brings
out the All India Power Supply Position on
a monthly basis, both in terms of energy and
peak giving the requirement, availability and
shortage in Million Units (MUs) as well as in
percentage and the peak demand, peak met and
peak shortage both in terms of Mega Watt (MW)
and percentage. The total energy requirement in
the country during 2009-10 was 830,594 MUs
as against 777,039 MUs during the previous
year, registering an increase of 6.9%. The
total energy availability in the country during
2009-10 during the aforesaid period was
"CEA-Helping the Transformation of Indian Power Sector"
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