it is the best ppt of PGCIL INDIA ;about the powergrid of india & the regions of power grid.

1. Submitted To: Submitted By:
TANUJ BHARDWAJ DHARMPAL YADAV
PGCIL INDIA

2. Introduction
 Interstate & intera state transmission
system are interconnected and together
the electrictygrid by Government of
India(GOI).
 IN 1963 India was divided in five region .
 PGCIL(power grid corporation of india
limited) was established in 1989 to
implemented the decision of GOI to form
a NATIONAL GRID .

3. Business
 POWERGRID operates throughout india.
 It transmission network consists of roughly
134,018 circuit kilometers
 It consisats 214 EHVAC & HVDC stations,
which provide total transformation
capacity of 278,862 MVA.
 POWERGRID is listed on both the BSE &
the NSE.

5. • Generation
• Peak Demand : 132 GW
• Growth Rate : 9 – 10 % (per annum)
Total Installed Capacity
– 228.7 GW (As on
30.09.13)
NER
ER
NR
WR
SR
ANDAMAN&
NICOBAR
LAKSHADWEEP
India - Present Power Scenario

6. National Load Despatch Centre (NLDC)
1. Northern Regional Load Despatch Centre (NRLDC)
2. Western Regional Load Despatch Centre (WRLDC)
3. Eastern Regional Load Despatch Centre (ERLDC)
4. Southern Regional Load Despatch Centre (SRLDC)
5. North-Eastern Regional Load Despatch
Centre (NERLDC

9. REGION Dispatch Center Installed Capacity
Northern Delhi 31,307 MW
Southern Bangalore 32,779 MW
Eastern Kolkata 16,410 MW
Western Mumbai 32,761 MW
North-Eastern Shillong 2,357 MW
Location of RLDC’s and Installed Capacity

10. • Northern Grid : Deficit Region , highly weather
sensitive load, Adverse weather conditions like fog
and dust storm
• Sothern Grid : High load , Monsoon dependent
hydro
• Eastern Grid : Low load ,High coal reserve
• Western Grid : Industrial Load
• North-Eastern Grid : Very low load , High hydro
potential , Evacuation problems
Peculiarities of Regional Grids in India :

11. Region Demand Supply Deficit
Northern 54,329 MW 54,137 MW -0.4%
Southern 43,630 MW 35,011 MW -19.8%
Eastern 18,507 MW 19,358 MW +4.6%
Western 48,479 MW 50,254 MW +3.7%
North-
Eastern
2,650 MW 2,544 MW -4%
Region wise Power Demand and Supply
position

12. Region wise availability of power
generation resources
Region Number of resources
Northern 61
Southern 51
Eastern 49
Western 71
North-Eastern 8
Total Installed capacity : 2,01,181 MW
Future : 2,08,790 MW
• Conventional Resources (Including Nuclear ,
Thermal ,Gas/liquid, Hydro)

13. Region Number of
resources
Northern 9
Southern 23
Eastern 18
Western 13
North-Eastern Nil
Total Installed capacity : 38,283.59 MW
• Non-conventional Resources (Including Wind
,Solar)

14. 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

15. 15
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

16. Region links Transaction capacity
ER-WR Two 400 kV lines with TCSC (Raipur-
Rourkela) . Three 220 kV lines (Korba-
Budhipadar)
1200 MW
WR-NR 500 MW HVDC Back-to-Back
(Vindhyachal-Singrauli)
450 MW
ER-SR 500 MW HVDC Back-to-Back (Jeypore-
Gazuwaka) . 2000 MW HVDC Bi-pole
(Talcher-Kolar)
2250 MW
WR-SR 1000 MW HVDC Back-to-Back
(Bhadravati-Ramagundam -
Chandrapur)
900MW
ER-NER 400 kV AC Line (Malda-Bogaigaon) .
400 kV AC Line (Birpara-Salakati)
1050 MW
ER-NR 500 MW HVDC Back-to-Back
(Sasaram-Pusauli)
450 MW
SR-WR 765KV AC Line (Raichur – Solapur)
(under construction)
2000 MW
Salient features of Regional interconnection of
grids in India :

17.  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)
 220kV : 1,42,536 ckm
 765kV : 7910 ckm
 400kV : 1,20,693 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.
SOUTHE
RN
REGION
WESTER
NREGIO
N
EASTER
N
REGION
NORTHER
N REGION
NORTH-
EASTER
N
REGION
1
2
The
‘Electrical’
Regions
Transmission Network - Present

18. 18
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

20. Our Nertworks
 Company owns and operates
about 1,35,319 ckt kms of transmission
lines at 800/765kV, 400kV, 220kV & 132kV
EHVAC & +500kV HVDC levels and 217
sub-stations.
 Also the transformation capacity of
about 2,80,992 MVA as on
28th February 2017

21. Opportunities in Future
Indian power system is facing high AT&C
Losses, poor distribution network, wide
demand – supply gap of energy, poor asset
management etc. Smart grid technology
will bring solutions to all of the mentioned
problems and sustainability by way of
demand side management, demand
response, outage management, reduction
in AT&C losses and improved customer
satisfaction

25. Advantages of Electric Grids
o Reduced operational cost
o Increased employee safety
o Increased revenue
o Volatility arising from dynamic pricing might cause
catastrophic rate spikes (similar to Uber’s surge pricing)
o Complicated rate structures might not incentivize
(encourage) efficiency if customers do not understand what
their current rates are.
Disadvantages of Electric Grids

26. With the completion of Raichur - solapur 765KV
line India becomes
one of the largest operating synchronous grids in
the world (one grid one nation) and
Interconnection of international grids help in the
improvement of Economy of the country as well
as it builds positive relationship between
neighbouring countries by power sharing/trading
Conclusion

27. Thanks