Inter-State Transmission for XII Plan

8/7/2019 Inter-State Transmission for XII Plan

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Transmission PlanningBasic Inputs

Generation Quantum, location and type

Load Centres

Time frame

Land/ Right of Way availability

Technology


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Power Supply Scenario

100

152

218

437

323

2007 2012 2017 2022 2027

Year

GW

Peak Demand

132220

306

575

425

2007 2012 2017 2022 2027Year

GW

Installed Capacity Requirement

End of X plan

During 12th

plan

During 13th

planDuring 11th

plan


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Capacity addition envisaged

Under Central Sector : about 28,600 MW

Under Private Sector : about 57,000 MW

Capacity Addition Envisaged in 12th Plan

Target capacity addition in 12th Plan : 100,000 MW (Tentative)

Private, 57000,

57%

Central, 28600,

29%

State, 14400,

14%


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Uneven Disposition of Energy Resource

Coal resources Eastern/Central India

Lignite Gujarat

Load centre Western,

Northern and Southern

States

Expected Installed Capacity (2025) : 6,00,000MW

Lara

Partabpur

Talcher/Ib Valley

Krishnapatnam

NEPAL

KorbaBhopalIndore

Tadri

Girye

Kaiga

Thiruvananthapuram

Pipavav

Kudankulam

SR

Bangalore

Kayamkulam

WR

Tarapur

Mumbai

Cuddalore

Ennore

Akaltara

Raipur

Hyderabad

RAPP

Gandhinagar

Mudra

Delhi

Ludhiana

NR

Jaipur

Jammu

Sasan

Vindhyachal

Lucknow

Load Centre Based Generatio

Ultra-Mega Generation

Hydro Based Generation

Coastal Generation

Coal Based generation

Nuclear generation

BhubaneswarDarlipali

Vizag

Simhadri

LEGEND

Load-Centre

NER

Guwahati

Koderma

SIKKIM

Kolkata

ER

PatnaNECK

CHICKEN

BHUTAN

DESHBANGLA

MYANMMAR

Mangalore

KozhikodeSouth MadrasChennai


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Approach for Generation Planning Emerging

Very large Power Stations located near coal mines

Orissa, Chhattisgarh, M.P, Jharkhand

Large HEPs located far off from load centers

Sikkim, North-eastern Region

Coastal Power Stations based on imported or domestic

coal

Mundra, Krishnapatnam, Tuticorin, Cuddalore, Ennore

Gas based Power Stations located along the gas-grid

Load centre based Power Stations


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Factors considered in Transmission Planning

Need to clear the backlog of inadequacies and to take care of

future requirements

Need to add certain degree of redundancies and cushions totake care of eventualities and to promote power trading

Open Access in transmission- Need to have a strongtransmission system, to cope this dynamic requirement

Open Access in distribution- where consumer will have optionto source power from wherever it is economical


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Upgrading & Uprating of existing transmission corridor

High Temp endurance conductor (INVAR-230deg C)

765kV AC Transmission System

+800kV, 6000MW HVDC system

Fixed and variable (TCSC) series capacitors

GIS, substation automation & remote operation High rise & Multi ckt towers

Technologies Being Adopted


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Transmission Plan


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Development of National Grid on continual basis with sufficient

inter-regional power transfer capacity

Planned to enhance the capacity progressively to about -

National Grid

A Continuing Process

Strengthening of National Grid

20800

31000

75000

0

20000

40000

60000

80000

Present By 2011-12 By 2016-17


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Transmission addition Programme by

POWERGRID in 12th Plan

Sector Capacity(MW)addition

envisaged

Transmission System planned forcorresponding capacity(MW)

Under construction DPR under

preparationCentral 28,600 4,140 17,394

Private 57,000 14,740 33,676

Total 85,600 18,880 51,070


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IPP Generations expected in next 4-5years

Generation Pocket Capacity Approx. cost of newtransmission system

Chattisgarh 15,000 MW 22,000 Crs

Orissa 6,100 MW 8,800 Crs

Jharkhand 5,100 MW 6,000 Crs

Sikkim & West Bengal 2,350 MW 1250 Crs

Andhra Pradesh 4,700 MW 1500 Crs

Tamil Nadu 2000 MW 1850 Crs

Total 35,250 MW 41,400 Crs


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Transmission Addition

Programme (Physical)


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Transmission Addition Programme

Tr. Lines, Voltage

level

End of 10th

Plan (Ckm)

End of 11th Plan

(Ckm)

Estimated

additions in12th Plan

(Ckm)

765 KV 2,184 7,612 25000-30000

HVDC Bi-pole 5,872 11,078 4000 - 6000

400 KV 75,722 1,25,000 50000

220 KV 1,14,629 1,50,000 40000

Total Tr. Lines 1,98,569 2,93,852 119,000

126,000


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Transmission Addition ProgrammeContd

Sub-Stn. Voltage level End of10th Plan

(MVA/MW)

End of 11th

Plan

(MVA/MW)

Estimatedaddition in12th Plan

(MVA/MW)

765 KV - 53,000 110,000

HVDC 8,200 14,700 16,000 -22,000

400 KV 92,942 145,000 80,000

220/230 KV 156,497 230,000 95,000

Inter Regional TransferCapacity

14,000 31,000 75,000


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POWERGRIDs Transmission

Addition Programme (Physical)


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Transmission Lines : 54,000 66,000 Ckt.kms

+ 600kV/800kV HVDC: 4,000 6,000 ckt km

765 kV AC : 25,000 30,000 ckt km

400kVkV AC : 25,000 30,000 ckt. km

New Substations 75 - 90 Nos.

765/400kV : 25 30 Nos.

400/220/132kV : 50 - 60 Nos.

1200/400kV : 1 2 Nos.

Transformation Capacity (MVA)- 1,30,000 1,50,000 MVA

765/400kV : 90,000 1,00,000 MVA

400/220/132kV : 40,000 50,000 MVA

POWERGRID Physical Target (12th Plan)


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POWERGRIDs Requirements in 12th Plan

Requirement of S/S equipment (Number)765 kV

HVDC Bipole projects 2

765 kV 500 MVA 1 ph units 210

765 kV 80 MVAR reactors 1 ph units 180

765 kV Circuit Breakers 475

765 kV Current Transformers (sets) 1400765 kV CVT's (sets) 500

765 kV Isolators (sets) 1300


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POWERGRIDs Requirements in 12th Plan

Requirement of S/S equipment (Number)400 kV

400 kV Class transformer 120

400kV 80, 63 & 50 MVAR reactor 3 ph units 120

400 kV Circuit Breakers 1300

400 kV Current Transformers (sets) 4000

400 kV CVT's (sets) 1100

400 kV Isolators (sets) 3400


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Supply Quantity Requirements for Line in 12th Plan

Item Unit Annual quantity Total quantity

Conductor Km 128,000- 152,000 6,40,000 7,62,000

Tower Steel MT 5,22,000 6,18,000 26,08,000

30,91,000Hardware Sets 1,77,000 2,10,000 8,84,000 10,52,000

Insulators Disc unit 157,19,000 186,38,000

785,94,000-931,88,000


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Estimated Investment in Transmission

12th Plan (2012-2017)

Estimated total fund requirement : Rs. 2,00,000 Cr

Inter-State Sector : Rs. 1,00,000 Cr

State Sector : Rs. 1,00,000 Cr


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Issues/Concerns

Private generation

Uncertainty w.r.t time, beneficiaries

Funding and payment security mechanism

Commensurate development of intra-state network

Timely statutory clearances like forest, aviation, PTCC,

Defence etc.

Availability of ROW as well as Land Enhancement of manufacturing capacity of main

equipment viz. transformers, reactors, CB, CT etc.

Availability of EPC contractors & right/trained manpower


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POWERGRIDs Efforts

Parallel processing of various activities

Standardized design

Continuous Vendor Development

Effective Project Monitoring


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Technologies in Transmission


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Initiatives by POWERGRID for indigenous vendordevelopment

Substation equipments

For 800kV Transformers/Reactors qualification criteria relaxed forindigenous manufacturers for certain portion of supplies

800kV indigenous developed Circuit breakers being installed at SeoniSubstation for trial purposes

Transmission Line equipments

Conductor manufacturers not meeting POWERGRID qualificationcriteria for 400kV being developed for supply against trial order.

Trial orders placed on indigenous composite insulator manufacturers

Civil construction firms, tower manufacturers and small contractorsbeing allowed for participation against Tower vendor developmentpackages

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Inter-State Transmission for XII Plan

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