Development of Transmission System in India

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India - Present Power Scenario
• Generation
Total Installed Capacity –
228.7 GW (As on 30.09.13)
NR
NER
ER
WR
: 132 GW
• Growth Rate
: 9 – 10 % (per annum)
KS
HA
DW
EE
AN &
ANDAM
AR
N IC O B
SR
LA
• Peak Demand
P
Evolution of National Grid
State
Grids by
SEBs
National
Grid
Interconnecting
Regional Grids
with HVDC
Regional Grids
with ATS of
Central
Generation
2000 onwards
1990s
1970-80s
(Paradigm Shift from self
sufficiency at Regional level
concept to National level)
1950-60’s
IR Capacity (MW)
Local
100000
1950’s
50000
5100
14100
27750
66400
0
IX Plan
X Plan
XI Plan
XII Plan
Five Regional Grids
Two Frequencies
August 2006
North synchronized
With Central Grid
March 2003
West synchronized
With East & Northeast
NEW Grid
October 1991
East and Northeast
synchronized
South
Grid
Central Grid
MERGING
OF
MARKETS
North
West
South
East
Northeast
Five Regional Grids
Five Frequencies
Installed Capacity 229 GW
4
Transmission Network - Present

Transmission network

The
‘Electrical’
Regions
NORTHE
RN
REGION
1

spread geographically over 3.3million sq km
: Inter-State and Intra-State level
Transmission line : 2,80,571 ckm
(POWERGRID : 1,020,000 ckm)
NORTHEASTER
N
REGION
EASTER
N
REGION
WESTE
RNREGI
ON


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)
2
SOUTH
ERN
REGION


−
765kV
: 56,500 MVA
−
400kV
: 170,397 MVA
−
220kV
: 247,194 MVA
HVDC
: 13,500 MW
FSC – 33nos., TCSC – 6 nos.
Inter-Regional Capacity - Existing
Present IR Capacity
– 31,850 MW
NR
6,220 MW
NER
14,230 MW
WR
WR
4,390 MW
1,520 MW
ER
1,260 MW
3,630 MW
SR
6
Players in the Power Sector
Generators
Central/State GENCO, IPP, Captive
CTU
Inter-State Trans. system,
Open Access
STU
Intra-State Tr./Sub-tr. system
DISCOMS
Consumers
Industries, household,
agriculture
System
Operator
Power
Exchange
Traders
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
Grid Management - Hierarchy
NLDC:
Ensure integrated operation of
National Grid
5
31
RLDC:
Ensure integrated operation of
Regional Grid
SLDC:
Ensure integrated operation of State
Grid
NATIONAL GRID - FUTURE
Projected Power Scenario
NEED OF NEW INITIATIVES IN TRANSMISSION
# Considering 9% GDP growth rate
205GW
Present Generation Capacity & Demand - 228 GW & 132 GW
** Source- Planning commission report on IEP
Demand Pattern in India
Ahmedabad
Mumbai &
Pune
Hyderabad
Bangalore &
Chennai
Source: NASA Satellite Snapshot
Energy Resource Map
Energy resources (coal, water etc.) unevenly distributed
E x p e c te d G e n e ra tin g S ta tio n s - 2 0 2 5
Hydro
E x p e c te d In s ta lle d C a p a c ity (2 0 2 5 ) : 6 ,0 0 ,0 0 0 M W
Jam m u
L u d h ia n a
S IK K IM
D e lh i
NEPAL
BHUTAN
P a rta b p u r
G u w a h a ti
J a ip u r
Lucknow
DESH
G a n d h in a g a r
AN
ER
V in d h y a c h a l
K o lk a ta
In d o re
P ip a v a v
K o d e rm a B A N G L A
MY
P a tn a
S asan
M u d ra
NER
C H IC K E N
NECK
AR
RAPP
MM
NR
Bhopal
K o rb a
A k a lta ra
WR
R a ip u r
T a lc h e r/Ib V a lle y
L a ra
D a rlip a li B h u b a n e s w a r
M um bai
V iz a g
H y d e ra b a d
M a n g a lo re
S im h a d ri
SR
T a d ri
K a ig a
LEG END
K ris h n a p a tn a m
B a n g a lo re
E n n o re
C hennai
S o u th M a d ra s
K o z h ik o d e
C o a l B a s e d g e n e ra tio n
H y d ro B a s e d G e n e ra tio n
C o a s ta l G e n e ra tio n
N u c le a r g e n e ra tio n
C u d d a lo re
U ltra -M e g a G e n e ra tio n
L o a d C e n tre B a s e d G e n e ra tio n
K a y a m k u la m
T h iru v a n a n th a p u ra m
L o a d -C e n tre
K u d a n k u la m
 Hydro – In North Eastern &
Northern Himalayan region
Coal
T a ra p u r
G iry e
 Coal – In Central India
- Chhattisgarh : 58000 MW
- Orissa :
30000 MW
- Jharkhand : 15000 MW
- Madhya Pradesh:16000 MW
 Coastal based
- Andhra Pradesh: 24000 MW
- Tamil Nadu :
10000 MW
- Gujarat :
11000 MW
Future Generation Scenario (5-6 Years)
 12th Plan (2012-17) Capacity Addition : 88 GW
•
•
•
Thermal
Hydro
Nuclear
– 72 GW
– 11 GW
– 6 GW
 Renewable Capacity Addition - 12th Plan(2012-17) : 42 GW
•
•
•
Wind
Solar
Small Hydro
– 30 GW
– 10 GW
– 2 GW
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)
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
40000
27750
20000
0
2011-12
By 2016-17
National Grid – A Continuing Process
Augmentation of IR Capacity in
XII Plan
6000 MW
NR
10200 MW
NER
5800 MW
WR
8400 MW
ER
1600 MW
6400 MW
SR
National Grid - XII Plan addition – 38,400 MW
National Grid - Total by XII Plan – 66,000 MW
17
TECHNOLOGY
Pursuing Higher Voltage Levels
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
Voltage
(kV)
765kV D/C
- AC
1200kV
765kV
800kV
HVDC
500kV
HVDC
400kV
220kV
1977
1990
2000
2002
Year
2012
2017-18
Technology being Adopted
 High Voltage line
 EHVAC : 400kV  765kV  1200kV
 HVDC : 500kV  800kV
 Increase the capacity of trans. corridor through HSIL/reconductoring 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
High Power Intensity Corridor
ROAD MAP
FOR INDIAN POWER SYSTEM
RoW Capacity MW/m
(m)
(MW)
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
Implementing +800kV HVDC Bipole Link
World’s
longest
multi-terminal ±800
kV HVDC under
implementation
from
Biswanath
Chariali,
NorthEastern Region to
Agra,
Northern
Region.
Shall
transmit
power to the tune
of 6000-8000 MW.
Biswanath
Chariali
Agra
2000 km
Indigenous Development of 1200kV UHVAC
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.
DEVELOPMENT PLAN
Change in Generation Profile
Central Sector
State Sector
Private Sector
Total
XI
15220 (30%)
16732(30%)
23012(42%)
54964
XII
26181 (30%)
15530(17%)
46825(53%)
88537
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
:
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
62,000
52,000
Total
HIGH CAPACITY
CORRIDORS
28
CROSS-COUNTRY INTERCONNECTION
Linkages with
Neighboring
Countries
IN T E R C O N N E C T IO N B E T W E E N IN D IA A N D B A N G L A D E S H G R ID S
B A R A P U K U R IA
JAYPU R H AT
M ALDA
K H E JU R IA
KAH ALG AO N
BOGRA
FARRAKA
NAOGAON
BOGRA
SOUTH
N IA M A T P U R
CH. NAW ABGANJ
BANG LADESH
D H U L IA N
R AJSH AH I
MADHOPUR
RAGHUNATHGANJ
NATORE
S IR A J G A N J
S A G A R D IG H I
BAHARAMPUR
IS H U R D I
DURGAPUR
GOKARNA
PABNA
S H A H JA D
PUR
BAHARAMPUR
(4 0 0 K V )
BAGHABARI
4 0 0 k V D /c
GHORASAL
BHERAMARA
IN D IA
B O T T A IL
KATW A BAKRESHW AR
F A R ID P U R
LEG END
T H E P R O JE C T
KO LAG HAT
SUBHASGRAM
JEER AT
KH U LN A
(S O U T H )
4 0 0 kV
2 3 0 kV
1 3 2 kV
31
E xistin g
U n d e r C o n s tr. / F u tu re
India - Bhutan : Interconnection
32
India - Nepal : Interconnection
33
India – Sri Lanka Interconnection
Madurai
Madurai-New
48 Kms
130 Kms
120 Kms
Panaikulam
Thirukketiswaram *
Taliamannar
110 Kms
Proposed Route for Interconnection
New Anuradhapura
Issues
& Challenges
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
Thank you
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