Overall National Grid Development: Constraints & Options

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

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%)

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%)

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)

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

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: 3,09,116 ckm; 5,72,405 MVA (Transf. Capacity)

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

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

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

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

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

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

National Grid – Present and Envisaged NR 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

High Capacity Transmission Corridors

Constraints and Options

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

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

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.

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

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

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%

Thank You

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