 POWERGID – PERSPECTIVE PLAN

POWERGRID – Introduction  POWERGRID, the Central Transmission Utility, is responsible for  Establishment and Operation of Inter-state, Regional & National Power Grid  Grid Management / System Operation of the five Regional Load Despatch Centres (RLDCs). Contd..

2300 Regional Grids of India Total Capacity = 1,12,360 MW 30,860 MW 32,700 MW 16,000 30,500 MW 2300 MW

POWERGRID & System Operation  RLDCs - Responsiblities  Apex Body for Integrated Grid Operation of the Region  Scheduling and Despatch of Electricity on real time basis  Energy Accounting  Supervision and Control of Inter – State Transmission System  Ensure Grid Security and adherence to Indian Electricity Grid Code(IEGC)

RTU SUB LDC SLDC ERLDC WRLDCNRLDCSRLDCNERLDC NLDC 32 Nos. 51 Nos Nos. Unified Grid Operation 5 Nos.

 Three RLDCs namely Northern, Southern & North-Eastern Regions have been modernised at an cost of about Rs Crs.  Mordernisation of Eastern & Western Regions RLDCs underway.  Estimated cost : Rs. 564 Crs.  Schedule : ER by June ’05 & WR by March’06 Modernisation of RLDCs

Main Feature of Unified Load Despatch System Unified Supervision & Control of Grid through dedicated Communication System on real time Basis.  Supervisory Control & Data Acquisition ( SCADA)  Real time acquisition of critical electrical parameters like Voltage, Frequency, MW & MVAR  Real Time Energy Management System  Contigency Analysis  Optimum Power Flow for reliability & security of the system  Merit Order Operation including Hydro-Thermal Mix  Load Forcasting  Quick Restoration of Grid in case of disturbance  Real Time Environment For Training Operators to cope with contingencies

Modernisation of RLDCs Has Resulted Into:  Considerable Improvement in System Parameters viz., Frequency & Voltage.Improvement in System Parameters  Merit Order Operation, Leading to Overall Economy Merit Order  Introduction of ABT (Availability Based Tariff), resulting in improved Grid stability  Transparency in grid operation  Quantum leap in intra and Inter Regional Power Exchange and TradingInter Regional Power Exchange and Trading  Infused Grid Discipline THERE HAS BEEN NO MAJOR GRID DISTURBANCE IN LAST 22 MONTHS

POWERGRID the Transmission Utility  POWERGRID started its commercial operation in  Over 40% of total power generated ( about 45,000 MW) is wheeled by POWERGRID  It operates & maintains 50,000 Ckms. of EHV Tr. System along with 82 Sub-stations at over 99% system availability. It operates & maintains 50,000 Ckms. of EHV Tr. System along with 82 Sub-stations at over 99% system availability Contd..

POWERGRID the Transmission Utility Excellent performance is through:  Robust system design after detailed studies with thrust on integrated development  Deployment of Hot line maintenance technique Deployment of Hot line maintenance technique  Use of Emergency Restoration System Use of Emergency Restoration System  Trained and dedicated manpower with decentralized administrative powers.

POWERGRID’s Perspective Plan Investment of Rs. 71,000 Crore in X and XI Plan (2012)  Rs. 51,000 Crs. to be brought in through IR and loans  Balance Rs.20,000 Crs. through private investment. National Grid National Grid of 30,000 MW capacity planned by 2012 to utilise the generation resources optimally.generation resources optimally  Inter Regional Transfer Capacity  Existing capacity : 8,500 MW  by : 30,000 MW

Benefits of Inter-Regional Exchanges  Exchange of Power from Surplus to Deficit Region  Higher Consumer Demand Met  Better Utilisation of available Generating Capacity.  Utilisation of diversity of Peak / Off-Peak period  Inter-Regional exchanges  22,000 MUs valued at around Rs. 4,400 Crores ( )  10,018 MUs valued at around Rs 2,000 Crores ( April’04 to July 2004 )  States Maximum benefited :  Maharashtra, Gujrat Madhya Pradesh  Punjab, Haryana, U.P. Karnataka, Tamilnadu, A.P.  West Bengal, Orissa and NER States  Improvement in system stability and grid parameters.

TRANSMISSION FACILITIES OF POWERGRID IN WR  Transmission lines :About 10,700 Ckt km. Transmission lines :About 10,700 Ckt km.  400 kV – 9700 Ckt km  220 kV – 1025 Ckt km  400 kV Substations- 7 nos. with 2835 MVA capacity (Jabalpur, Satna, Raipur, Dehgam, Mapusa, Bhadravati, Itarsi)  Inter-Regional Links : 3550 MW  1000 MW, HVDC back to back link at Chandrapur  500 MW, HVDC back-to-back link at Vindhyachal  1200 MW, Raipur – Rourkela 400 kV D/c lines  220 kV lines between WR & ER ( 450 MW) and WR & NR (400 MW)

R&D and Technology Development in POWERGRID Deployment of State-of-the-Art technology  HVDC & EHVAC Transmission System upto 800 kV with multi Ckts. HVDC & EHVAC Transmission System upto 800 kV with multi Ckts.  Use of fixed & variable Series Compensator (FACTS)  Extra High Towers to avoid deforestation and protection of wild life Extra High Towers to avoid deforestation and protection of wild life  Compact Towers to reduce Right Of Way Compact Towers to reduce Right Of Way  High Temperature Conductors for increased Loading  Automation of Sub-stations. Automation of Sub-stations.  Compact S/stn to reduce land requirement. Compact S/stn to reduce land requirement.  Satellite imagery for Transmission Line Survey. Satellite imagery for Transmission Line Survey

Manpower And System Development  5725 employees in and 6828 at present though Operations have grown six (6) times Operations  Possible due to effective systems in Design, Engineering, Contracts, HR, O&M and Project Management.  Structured training of personnel at all levels.  5 Regional Training Centers already established and plans to establish R&D and National Training Center at Bhiwadi, Rajasthan in 2 years time.  Training of SEBs in Design, Operation and Maintenance of Transmission System and Load Despatch System

Assistance in execution of Distribution works Assistance in execution of Distribution works  POWERGRID is Advisor cum consultant for APDRP works in 18 states  POWERGRID is assisting in execution of Distribution works in Bihar, Goa, Meghalaya and Mizoram  In Bihar, schemes costing about Rs. 663 cr. include :  Establishment of 38 nos. of new and R&M of 200 nos. of 33/11 kV sub-stations  Construction/Reconductoring of about kms. of 33 kV & 11kV lines  Installation / Renovation of about nos. of Distribution Transformers  In GOA, schemes costing about Rs. 175 cr. include  Establishment of 3 nos. of new and R&M of 38 nos. of 33/11 kV sub-stations  Construction/Reconductoring of about 850 kms. of 33 kV & 11kV lines  Conversion of Overhead distribution network to Underground Cable network in 2 cities, viz. Margaon & Panjim

Thank You

Prior To ABT & RLDC Administration After ABT & RLDC Administration

Profile of POWERGRID Profile of POWERGRID Back

Inter Regional Links Inter Regional Links Present IR Capacity = 8,500 MW By the year 2012 = 30,000 MW 500 MW 1200 MW 1000MW 2000MW 500 MW Back

Natural Energy Resources. Coal Hydro Back

Financial Profile of POWERGRID Back