Transmittion

2. • Generation
• Peak Demand : 132 GW
• Growth Rate : 9 – 10 % (per annum)
India - Present Power Scenario
Total Installed
Capacity – 228.7 GW
(As on 30.09.13)
NER
ER
NR
WR
SR
A
N
D
A
M
A
N
&
N
IC
O
B
A
R
L
A
K
S
H
A
D
W
E
E
P

3. National
Grid
1950-60’s
1970-80s
2000 onwards
Local
1950’s
State
Grids by
SEBs
Regional Grids
with ATS of
Central
Generation
(Paradigm Shift from self
sufficiency at Regional level
concept to National level)
Interconnecting
Regional Grids
with HVDC
1990s
0
50000
100000
IX Plan X Plan XI Plan XII Plan
5100
14100
27750 66400
IR Capacity (MW)
Evolution of National Grid

4. 4
NEW Grid
South
Grid
South
West
North
East
Northeast
Five Regional Grids
Five Frequencies
October 1991
East and Northeast
synchronized
March 2003
West synchronized
With East & Northeast
August 2006
North synchronized
With Central Grid
Central Grid
Five Regional Grids
Two Frequencies
Installed Capacity 229 GW
MERGING
OF
MARKETS

5.  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
 FSC – 33nos., TCSC – 6 nos.
SOUTH
ERN
REGION
WESTE
RNREGI
ON
EASTER
N
REGION
NORTHE
RN
REGION NORTH-
EASTER
N
REGION
1
2
The
‘Electrical’
Regions
Transmission Network - Present

6. 6
14,230 MW
WR
NR
NER
ER
SR
1,520 MW
3,630 MW
4,390 MW
1,260 MW
6,220 MW
Present IR Capacity – 31,850 MW
WR
Inter-Regional Capacity - Existing

7. Generators
Central/State GENCO, IPP, Captive
CTU
Inter-State Trans. system,
Open Access
STU
Intra-State Tr./Sub-tr. system
DISCOMS
System
Operator
Consumers
Industries, household,
agriculture
Traders
Power
Exchange
Players in the Power Sector

8. • 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
Role of POWERGRID as CTU

9. NLDC:
Ensure integrated operation of
National Grid
RLDC:
Ensure integrated operation of
Regional Grid
SLDC:
Ensure integrated operation of State
Grid
31
5
Grid Management - Hierarchy

10. NATIONAL GRID - FUTURE

11. NEED OF NEW INITIATIVES IN TRANSMISSION
** Source- Planning commission report on IEP
Present Generation Capacity & Demand - 228 GW & 132 GW
# Considering 9% GDP growth rate
205GW
Projected Power Scenario

12. Source: NASA Satellite Snapshot
Bangalore &
Chennai
Mumbai &
Pune
Ahmedabad
Hyderabad
Demand Pattern in India

13.  Coal – In Central India
- Chhattisgarh : 58000 MW
- Orissa : 30000 MW
- Jharkhand : 15000 MW
- Madhya Pradesh:16000 MW
 Hydro – In North Eastern &
Northern Himalayan region
 Coastal based
- Andhra Pradesh: 24000 MW
- Tamil Nadu : 10000 MW
- Gujarat : 11000 MW
Expected Installed Capacity (2025) : 6,00,000MW
Lara
Expected Generating Stations - 2025
Partabpur
Talcher/Ib Valley
Krishnapatnam
NEPAL
Korba
Bhopal
Indore
Tadri
Girye
Kaiga
Thiruvananthapuram
Pipavav
Kudankulam
SR
Bangalore
Kayamkulam
WR
Tarapur
Mumbai
Cuddalore
Ennore
Akaltara
Raipur
Hyderabad
RAPP
Gandhinagar
Mudra
Delhi
Ludhiana
NR
Jaipur
Jammu
Sasan
Vindhyachal
Lucknow
Load Centre Based Generation
Ultra-Mega Generation
Hydro Based Generation
Coastal Generation
Coal Based generation
Nuclear generation
Bhubaneswar
Darlipali
Vizag
Simhadri
LEGEND
Load-Centre
NER
Guwahati
Koderma
SIKKIM
Kolkata
ER
Patna
NECK
CHICKEN
BHUTAN
DESH
BANGLA
M
Y
A
N
M
M
A
R
Mangalore
Kozhikode
South Madras
Chennai
Energy resources (coal, water etc.) unevenly distributed
Hydro
Coal
Energy Resource Map

14.  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
Future Generation Scenario (5-6 Years)

15.  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)
Expansion Programme – 12th Plan

16. National Grid – A Continuing Process
27750
66000
0
20000
40000
60000
80000
2011-12 By 2016-17
 National Grid comprises of Inter-State, Intra-State and
Inter-regional transmission system
 Cummulative Growth of Inter-regional capacity in MW
Emerging National Grid

17. 17
WR
NR
NER
ER
SR
6400 MW
10200 MW
8400 MW
6000 MW
1600 MW
5800 MW
National Grid - XII Plan addition – 38,400 MW
National Grid - Total by XII Plan – 66,000 MW
Augmentation of IR Capacity in
XII Plan

18. TECHNOLOGY

19. Voltage
(kV)
1977 1990 2000 2002 2012 2017-18
Year
220kV
400kV
500kV
HVDC
765kV
800kV
HVDC
1200kV
765kV D/C
- AC
World’s Highest
Voltage level – Test station
Charged in Oct.’12
World’s longest
multi-terminal
HVDC to harness renewable
Hydro Power from North-east
Pursuing Higher Voltage Levels

20.  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
Technology being Adopted

21. ROAD MAP FOR INDIAN POWER SYSTEM
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
69 m
176
m
High Power Intensity Corridor

22. World’s 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.
2000 km
Agra
Biswanath
Chariali
Implementing +800kV HVDC Bipole Link

23. World’s 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.
Indigenous Development of 1200kV UHVAC

24. DEVELOPMENT PLAN

25. Central Sector State Sector Private Sector Total
15220 (30%) 16732(30%) 23012(42%) 54964
26181 (30%) 15530(17%) 46825(53%) 88537
XI
XII
Change in Generation Profile

26.  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
Long Term Open Access / Connectivity

27. 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
High Capacity Corridors

28. 28
HIGH CAPACITY
CORRIDORS

29. CROSS-COUNTRY INTERCONNECTION

30. Linkages with
Neighboring
Countries

31. 31
BOGRA
SOUTH
BHERAMARA
NAOGAON
NIAMATPUR
FARRAKA
SUBHASGRAM
KATWA
GOKARNA
JEERAT
KHULNA
(SOUTH)
BOTTAIL
BAHARAMPUR
CH. NAWABGANJ
RAGHUNATHGANJ
KAHALGAON
SAGARDIGHI
RAJSHAHI
BAHARAMPUR
ISHURDI
NATORE
KHEJURIA
FARIDPUR
BAGHABARI
GHORASAL
MADHOPUR
SHAHJAD
PABNA
PUR
SIRAJGANJ
BOGRA
INTERCONNECTION BETWEEN INDIA AND BANGLADESH GRIDS
400 kV
230 kV
132 kV
THE PROJECT
LEGEND
BAKRESHWAR
KOLAGHAT
BANGLADESH
INDIA
400kV D/c
(400 KV)
MALDA
DHULIAN
DURGAPUR
Existing
Under Constr. / Future
JAYPURHAT BARAPUKURIA

32. 32
India - Bhutan : Interconnection

33. 33
India - Nepal : Interconnection

34. 130 Kms
120 Kms
110 Kms
Proposed Route for Interconnection
Madurai-New
Panaikulam
New Anuradhapura
Taliamannar
Thirukketiswaram *
48 Kms
Madurai
India – Sri Lanka Interconnection

35. ROAD MAP FOR INDIAN POWER SYSTEM
 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 O&M
Issues & Challenges

36. Thank you