1. Overall National Grid Development: Constraints & Options

2. Index Recent developments in Power Sector Future Outlook
Constraints and Options a

3. Recent Developments in Power Sector
Rate of Generation capacity addition gone up multifold
Installed capacity
115 GW (in 2005)  276 GW (in 2015)
i.e, 161 GW added in 10 years (138%)

4. Recent Developments in Power Sector
Increased private participation in capacity addition
Installed capacity by Private Sector
12 GW (in 2005)  105 GW (in 2015)
i.e, 93 GW added in 10 years (775%)
Capacity mostly merchant in nature; very few PPA signed
(10%)
(38%)

5. Recent Developments in Power Sector
Increased penetration of renewable capacity
Installed capacity
2.5 GW (in 2005)  36 GW (in 2015)
i.e, 33.5 GW added in 10 years (14 times)

6. Recent Developments in Power Sector
765 kV
Becoming backbone of Indian Power Grid
About 15,000 ckm added in last 5 years
More than 30 S/S added in last 5 years

7. Recent Developments in Power Sector
All India Grid Synchronised
One Nation – One Grid
One of the largest grids in the world
Generation Capacity: 274 GW
Demand: >1000 BU
Transmission: ,09,116 ckm;
5,72,405 MVA (Transf. Capacity)

8. Recent Developments in Power Sector
Existing I-R Capacity
51,650MW
One of the Largest Electricity Grids operating at single frequency in the world
August 2006
North synchronized
with Central Grid
One Nation
One Grid
One Frequency
NEW* Grid
South
Grid
March 2003
West synchronized
With East & North-East
Dec’2013
South
synchronized
with
NEW Grid
Central Grid
October 1991
East & North-East
synchronized
* North East West S W N E NE
Five Regional Grids
Five Frequencies 8

9. Recent Developments in Power Sector
500 MW HVDC interconnection with Bangladesh commissioned

10. Recent developments in Power Sector Vibrant Electricity Market
~ 8 p.u.
~ < 3 p.u. 10
Optimal Utilization of Resources through IR Exchanges and STOA
Development of Vibrant Electricity Market
Reduction in per unit energy charges

11. Recent Developments in Power Sector
Congestion being experienced in few corridors
inspite of the fact, since 2005
34,000 ckm, 63 s/s & 1,19,055 MVA added by POWERGRID
Inter regional capacity: increased from 24,000 MW to 51,650 MW

12. Future Outlook 24x7 Power for All
Increasing Per Capita Electricity Consumption
Increasing penetration of renewable capacity: 175 GW by 2022
Seamless SAARC Power Grid

13. Transmission Addition
Future Outlook
Transmission Addition
12th Plan
1,07,000 ckm
2,88,000 MVA
Green Energy Corridors
11 high capacity corridors
2 nos of  800 kV HVDC
Rs. 1,80,000 crore
13th Plan
1,30,000 ckm
3,00,000 MVA
Green Energy Corridor-II
Rs. 2,00,000 crore

14. National Grid – Present and EnvisagedNR
Present IR Capacity: 51,650 MW
Figures do not include 600MW (in aggregate) pertaining to various 132kV
15,830MW
NER ER SR
5,720MW
3,630MW
10,690MW
2,860MW
12,920MW WR
Planned IR Capacity by XII Plan end: 72,250 MW
17,930MW
16,920MW
12,790MW
7,920 MW
7,830MW
Envisaged (Cumulative)
by Mar’17
Existing
6,000 MW
Present & Targeted IR Capacity include Pvt. Sector lines also

15. High Capacity Transmission Corridors

16. Constraints and Options

17. Major Constraints & Options
Right of Way
Increasing voltage level
EHVAC : 765kV 1200kV
HVDC : 500kV  800kV (Multi-terminal)
Multi Circuit lines
High capacity lines
Application of FACTS
Compact tower, narrow base tower, pole structure
Cable & VSC based HVDC
Technology

18. Major Constraints & Options
Substation Land Acquisition
Gas Insulated Switchgear (GIS) - Make in India
Automation of substation

19. Integration of RE capacity-Options
Strong interconnections to sustain variability
Development of Green Energy Corridors – I & II
Transmission to precede generation
Dynamic control system – STATCOM, SVC
Renewable Generation Forecasting, Renewable Energy Management Centre (REMC)
Provision of balancing reserves
Availability of quick ramping capacities like, Pumped storage, hydro, gas based generation, etc.

20. Uncoordinated Development of Capacity Addition
Uncertainty in generation addition
Eastern Region: 14,000 MW delayed
Southern Region: 10,000 MW delayed
No firm beneficiaries – lack of PPAs
Increased share of merchant power
Skewed power flow due to market forces

21. Options
Co-ordinated National Effort for development of Transmission, Generation & Load
Assessment of load by each state , Co-ordinated planning and implementation in a collaborative Manner – General Network Access (GNA)
Transmission to Lead Generation
Creation of Energy Highways, according to load growth envisaged for each state
3 high capacity HVDC lines (6000 MW each) under construction

22. Constraints & Options Options Very large grid
Real time monitoring with self healing feature
Smart Grid application - Wide Area Measurement System (WAMS) : 1740 PMU, Robust communication
Controlled features like SVC, STATCOM, FACTS, Phase shifters, etc.
Grid Management
Very large grid
2nd largest in the world
4 lac ckm upto 220 kV
All types of technology – 400kV, 765kV, HVDC
Increased penetration of renewable: 14% -> 30%

23. Thank You

24. Southern Region Inter Regional Capacity
Raigarh
6000MW
Wardha
4200MW
Talcher
2500MW
Chandrapur
Angul
4200MW
Balimela
Kolhapur
Sholapur
130MW
4200MW
1000MW
Gazuwaka
1000MW
260MW
Upper Sileru
Nizamabad
Ponda
2200MW
Srikakulam
Raichur
260MW
Belgaum
Southern Region Inter Regional Capacity
Nagajhari
Narendra
Kolar
Pugalur