INDIAN POWER SECTOR. ADMINISTRATION AND MANAGEMENT As per Constitution of India, Electricity comes under concurrent list i.e. the development and management.

INDIAN POWER SECTOR

INDIAN POWER SECTOR

ADMINISTRATION AND MANAGEMENT

As per Constitution of India, Electricity comes under concurrent list i.e.

the development and management of power sector would be governed by both

Central as well as State governments.

INDIAN POWER SECTOR

AGENCIES:• Central Electricity Authority• Central Sector Utilities• State Sector Utilities• Consortiums – Joint Utilities• Bulk Licensees• Independent Power Producers

INDIAN POWER SECTOR

CENTRAL SECTOR UTILITIES• Generating Utilities: - NTPC, NHPC, NPCIL …

• Transmission Utilities: - POWERGRID …

• Regional Control Centres: - RLDCs(CTU)

• Power Trading Utilities: - PTC …

• Financing Utilities: - PFC …

• Training Utilities - NPTI …

INDIAN POWER SECTOR

STATE SECTOR UTILITIES

• Transmission Corporations (TRANSCOs) • State Control Centres – SLDCs(STUs)

• Generation Corporations (GENCOs)

• Distribution Corporations (DISCOMs)

• Vertically Integrated Utilities (SEBs)

INDIAN POWER SECTOR

OTHER UTILITIES• Consortiums : - BBMB, ……., …

• Bulk Licencees: - CESC, BSES, TATA POWER …

• Independent Power Producers :

-IPPs(Central ,State …)

INDIAN POWER SECTOR

REGULATORS • Central Electricity Regulatory Commission

(CERC)• State Electricity Regulatory Commissions

(SERCs)

INDIAN POWER SECTOR

CENTRAL ELECTRICITY AUTHORITYFUNCTIONS:• Development of National Power Policy• To act as an arbitrator• To carry out studies relating to cost, efficiency, losses and

such like matters• Promote research in matters connecting electricity• To make arrangements for advancing the skill of persons

in the generation and supply of electricity• Advise central government in such related matters

INDIAN POWER SECTOR

CENTRAL TRANSMISSION UTILITY FUNCTIONS:• Undertake transmission of energy through inter-State

transmission system (ISTS)• Discharge all functions of planning and co-ordination

relating to ISTS with other agencies• Exercise supervision and control over the ISTS• Operate the Regional Load Despatch Centres • Direction, Control and supervision of the functions of

Transmission Licencees

INDIAN POWER SCENARIO

MANAGEMENT OF POWER SYSTEM

• Grid operation & management on regional basis

- Broadly five regional grids viz. northern,

western, southern, eastern and north-eastern

• Grid Interconnections through asynchronous links

• Inter Regional Radial Feeds at 220 kV/400 kV

INDIAN POWER SCENARIO

POWER SCENARIO AT A GLANCE • Installed Capacity 108 000 MW

Composition: Coal – 71%, Hydro – 25%, Nuclear and others – 4%• Requirement Peak-MW 81 555 MW Energy 1430 MU/day

• Availabilty Peak-MW 71 260 MW Energy 1325 MU/day

INDIAN POWER SCENARIO

INDIAN TRANSMISSION SYSTEM – PRESENT

All Figs are In Ckt. Kms

Voltage

Level

State Central(POWERGRID)

Total

HVDC 1,504 1,632 3,136

800 KV 400 550 950

400 KV 13,000 32,500 45,500

220/132 KV 2,06,000 9,000 2,15,000

INDIAN POWER SCENARIO

PLAN FOR NATIONAL GRID: PHASE – I (by 2002)

• Interconnection of Regional Grids through HVDC Back-to-Back links - To take care of widely varied operational parametersUnder Operation North – West: 500MW Vindhyachal Back-to-Back West – South: 1000MW Chandrapur Back-to-Back East – South: 500MW Gazuwaka Back-to-Back Under Construction East – North: 500MW Sasaram Back-to-Back

• Link between ER and NR is the last link of phase-I to be completed by Oct., 2002.

• With Completion of Phase-I, Cumulative Inter regional Capacity would be 4850 MW

DEVELOPMENT OF NATIONAL GRID

NER

ER

NR

WR

SR

EXISTING

500MW

MW1000

MW500

GAZUWAKA

CHANDRAPUR

VINDHYACHAL

SASARAM

UNDERCONST.

EXISTING

400 kV

220 kV

BONGAIGAONBIRPARA

MALDA

KORBA BUDHIPADAR

KOLHAPUR

BELGAUM

U.SILERU

BALIMELA

DEHRISAHUPURI

MALANPUR

AURAIYA

PHASE-I(By 2002)

• For efficient, secured and reliable operation of the grid and inter-regional power exchange, POWERGRID has planned for Unified Load Despatch schemes in all five Regional GridsNorthern Region : In operation

Southern Region : In operation

North-eastern Region: Under implementation - completion by June, 2003

Eastern Region: Under implementation - completion by Sept, 2003

Western Region: NIT to be issued – completion by January, 2005

• Estimated Cost of above projects : US $ 470 million (Rs. 2170 Cr).

• National Load Despatch Schemeinter-connecting all the five ULDCs has also been plannedFeasibility Report is under preparation

Expected completion schedule – by 2007

Estimated Cost : US $ 54 million (Rs. 250Cr)

Unified Load Despatch & Communication

Hierarchical setup of Regional ULDC

REGIONAL LOAD DESPATCH

CENTRE

RTU RTU RTU

SUB LDC SUB LDC SUB LDC

SLDC SLDC SLDC

NRLDC WRLDC ERLDC SRLDC NERLDC

STATE LOAD DESPATCH

CENTRE

AREA LOADDESPATCH CENTRE

REMOTE TERMINALUNIT

(AT SUB-STATIONS &GENERATING STNS

NLDCNATIONAL LOAD DESPATCH

CENTRE

SLDCSLDC

SUB LDC SUB LDC

RTURTU

INDIAN POWER SCENARIO

DEMAND SUPPLY SCENARIO BY 2012

• Projected Peak Demand - 157,000 MW • Capacity addition envisaged –

In 10th Plan - 45,000 MW In 11th Plan - 55,000 MW

(Approx. 10000 MW Capacity Addition per Year)

• Major Resources for Capacity Addition Hydro potential in J&K, HP & NER Coal potential in Bihar, Orissa Bulk power need to be transferred from ER/NER to other deficit regions

INDIAN POWER SCENARIO

PLAN FOR NATIONAL GRID: PHASE–II (by 2007)• High capacity “Transmission highways” along with major generation projects

• Highways already constructed

• Kishenpur - Moga 765 kV 2xS/c in J&K

• Kathalguri – Malda 400kV D/c in NER

• Hybrid HVAC and HVDC interconnection planned

• Implementation already commenced

• 2000 MW HVDC bipole between Talcher-Kolar bet. ER & SR

• 400kV AC link between Rourkela and Raipur bet. ER & WR

• High capacity 400 kV link from Tala to Delhi bet. ER & NR

• 2nd Gazuwaka HVDC back-to-back by 500MW bet ER & SR

• About 5000 ckt. km of 765 kV lines planned alongwith Mega projects in ER

• With the completion of Phase-II, the inter-regional capacity would be 23,000 MW

INDIAN POWER SCENARIO

PLAN FOR NATIONAL GRID: PHASE–III (by 2012)

• Strengthening of inter-regional link to have a ring of 765kV lines inter-

connecting Northern, Western and Eastern Regions

• ER inter-connection with SR to be strengthened through HVDC lines

(asynchronous link)

• Completion of Phase-III would lead to cumulative capacity of inter-

regional link to 30,000 MW

4850

23000

30000

0

5000

10000

15000

20000

25000

30000

35000

Plan

Cum

ulat

ive

Cap

acity

(MW

)

By 2002 By 2006-07 By 2011- 12

Growth of Cumulative capacity of Inter-regional linksGrowth of Cumulative capacity of Inter-regional links