Development of

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Development of Transmission System in India
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India - Present Power Scenario

• Generation
• Peak Demand 132 GW
• Growth Rate 9 10 (per annum)

Total Installed Capacity 228.7 GW (As on
30.09.13)
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Evolution of National Grid
National Grid
Interconnecting Regional Grids with HVDC
Regional Grids with ATS of Central Generation
2000 onwards
1990s
State Grids by SEBs
1970-80s
(Paradigm Shift from self sufficiency at Regional
level concept to National level)
1950-60s
Local 1950s
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August 2006 North synchronized With Central Grid
Five Regional Grids Two Frequencies
March 2003 West synchronized With East
Northeast
NEW Grid
October 1991 East and Northeast synchronized
South Grid
Central Grid
MERGING OF MARKETS
North
East
West
Northeast
South
Installed Capacity 229 GW
Five Regional Grids Five Frequencies
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Transmission Network - Present

• Transmission network
• spread geographically over 3.3million sq km
  Inter-State and Intra-State level
• Transmission line 2,80,571 ckm
• (POWERGRID 1,020,000 ckm)
• 765kV 7910 ckm
• 400kV 1,20,693 ckm
• 220kV 1,42,536 ckm
• HVDC Bipole (500kV) 9,432 ckms
• Transformation capacity (MVA/MW)
• HVAC 474,091 MVA
• (POWERGRID 170,000MVA, 171 S/s)
• 765kV 56,500 MVA
• 400kV 170,397 MVA
• 220kV 247,194 MVA
• HVDC 13,500 MW

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Inter-Regional Capacity - Existing
Present IR Capacity 31,850 MW
6,220 MW
14,230 MW
1,260 MW
ER
WR
WR
4,390 MW
1,520 MW
3,630 MW
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Players in the Power Sector
Generators Central/State GENCO, IPP, Captive
CTU Inter-State Trans. system, Open Access
System Operator
STU Intra-State Tr./Sub-tr. system
Power Exchange
DISCOMS
Traders
Consumers Industries, household, agriculture
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Role of POWERGRID as CTU

• To undertake transmission of electricity through
  ISTS
• To discharge all functions of planning and
  co-ordination relating to ISTS with Central Govt,
  CEA, RPC, STU, Trans Licensees.
• To ensure development of an efficient,
  co-ordinated and economical system of ISTS lines
  for smooth flow of electricity from generating
  stations to the load centres
• To provide non-discriminatory access to its
  transmission system for use by any licensee or
  generating company on payment of the transmission
  charges or any consumer as and when such open
  access is provided by the State Commission

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Grid Management - Hierarchy
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National Grid - Future
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Need of new initiatives in Transmission
Projected Power Scenario
Considering 9 GDP growth rate
205GW
Present Generation Capacity Demand - 228 GW
132 GW
Source- Planning commission report on IEP
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Demand Pattern in India
Ahmedabad
Mumbai Pune
Hyderabad
Bangalore Chennai
Source NASA Satellite Snapshot
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Energy Resource Map
Energy resources (coal, water etc.) unevenly
distributed

• Coal In Central India
• - Chhattisgarh 58000 MW
• - Orissa 30000 MW
• - Jharkhand 15000 MW
• - Madhya Pradesh16000 MW
• Hydro In North Eastern Northern Himalayan
  region
• Coastal based
• - Andhra Pradesh 24000 MW
• - Tamil Nadu 10000 MW
• - Gujarat 11000 MW

Hydro
Coal
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Future Generation Scenario (5-6 Years)

• 12th Plan (2012-17) Capacity Addition 88 GW
• Thermal 72 GW
• Hydro 11 GW
• Nuclear 6 GW
• Renewable Capacity Addition - 12th Plan(2012-17)
  42 GW
• Wind 30 GW
• Solar 10 GW
• Small Hydro 2 GW

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Expansion Programme 12th Plan

• Transmission Line 1,10,000 ckm
• (POWERGRID 40,000ckm)
• 765kV 27,000 ckm
• 400kV 38,000 ckm
• 220kV/132kV 35,000 ckm
• HVDC 9,500 ckm
• Substations about 270,000 MVA
• (POWERGRID 100,000 MVA)

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Emerging National Grid

• National Grid comprises of Inter-State,
  Intra-State and Inter-regional transmission
  system
• Cummulative Growth of Inter-regional capacity in
  MW

66000
80000
60000
27750
40000
20000
0
By 2016-17
2011-12
National Grid A Continuing Process
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Augmentation of IR Capacity in XII Plan
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Technology
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Pursuing Higher Voltage Levels
Worlds Highest Voltage level Test station
Charged in Oct.12
Worlds longest multi-terminal HVDC to harness
renewable Hydro Power from North-east
765kV D/C - AC
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Technology being Adopted

• High Voltage line
• Increase the capacity of trans. corridor through
  HSIL/re-conductoring with HTLS /Upgradation
• Utilisation of existing transmission lines upto
  full thermal capacity Series capacitors, SVC,
  FACTS
• Optimization of Tower design tall tower,
  multi-ckt. tower
• GIS substation

• EHVAC 400kV ? 765kV ? 1200kV

• HVDC ?500kV ? ?800kV

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Road Map for Indian Power System
High Power Intensity Corridor
RoW (m) Capacity (MW) MW/m RoW
400kV S/c 52 500 9.6
400kV D/c 46 1000 21.8
765kV S/c 64 2500 39
765kV D/c 67 4000 60
800kV HVDC 69 6000 87
176 m
69 m
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Implementing 800kV HVDC Bipole Link

• Worlds longest multi-terminal 800 kV HVDC under
  implementation from Biswanath Chariali,
  North-Eastern Region to Agra, Northern Region.
• Shall transmit power to the tune of 6000-8000 MW.

Biswanath Chariali
Agra
2000 km
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Indigenous Development of 1200kV UHVAC

• Worlds highest voltage, 1200kV UHV AC, test
  charged at Bina, Madhya Pradesh in October 2012.
• Has been Developed Indigenously through Public
  Private Partnership (PPP) with 35 Indian
  manufacturers in open collaboration.

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Development Plan
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Change in Generation Profile
Central Sector State Sector Private Sector Total
15220 (30) 16732(30) 23012(42) 54964
26181 (30) 15530(17) 46825(53) 88537
XI
XII
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Long Term Open Access / Connectivity

• Long-term Open Access
• Application Received 218no. , 132,000MW
• Granted 148 No., 83,000 MW
• Connectivity
• Application Received 188no. , 176,300MW
• Granted 84 No., 74,400 MW
• Short Term Open Access
• 2012-13 32,000 transactions, 74BU energy

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High Capacity Corridors
S.No Corridor Ins. Capacity (MW) LTOA granted (MW)
1 HCPTC I ( for IPP projects in Orissa) 10090 6080
2 HCPTC II ( for IPP projects in Jharkhand) 3820 3510
3 HCPTC-III (for IPP projects in Sikkim) 2162 2162
4 HCTPC-IV ( for IPP projects in M.P Chhattisgarh) 4370 3554
5 HCTPC V ( for IPP projects in Chhattisgarh) 18270 16289
6 HCTPC VI ( for IPP projects in Krishnapatnam) 4240 3516
7 HCTPC VII ( for IPP projects in Tuticorin) 2520 2000
8 HCTPC VIII ( for IPP projects in Srikakulam) 1320 1240.8
9 HCTPC IX ( for IPP projects in SR, for transfer of power to WR/NR) 8446 7026
10 HCTPC X ( for IPP projects in Vemagiri) 4568 4325
11 HCTPC XI ( for IPP projects in Nagapattinam/ Cuddalore ) 2250 2137
Total 62,000 52,000
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HIGH CAPACITY CORRIDORS
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Cross-Country Interconnection
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Linkages with Neighboring Countries
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(No Transcript)
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India - Bhutan Interconnection
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India - Nepal Interconnection
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India Sri Lanka Interconnection
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Road Map for Indian Power System
Issues Challenges

• Issues concerning availability of RoW and same
  are becoming critical
• Resistance of people, terrains in areas of
  mountains and forest
• Sector to grow from 228 GW to 600 GW in next 20
  years Even 765kV system may not be good enough.
  New methods have to be found out
• Challenges to develop Transmission system to meet
  the requirement of power flow from anywhere to
  anywhere.
• With increasing magnitude of power transmission,
  create new challenges of proper OM

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Thank you