Contribution of NTPC to

Uttar Pradesh

N.K.SrivasatavaGM-R&M/ESNTPC-Noida

nksrivastava@ntpceoc.co.in09650991597

1986-871986-87

1991-921991-92

1996-971996-97

2001-022001-02

19935 MW19935 MW

2006-072006-07 2032

2032

128000 MW128000 MW27404 MW

27404 MW

16795 MW16795 MW

3100 MW3100 MW

11333 MW11333 MW 33194 MW

33194 MW

TodayToday

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NTPC has evolved as a leading integrated power player

1975197519821982

1990199019971997

20022002

20042004

20052005

20072007

20092009

Set up with 100% ownership by GOI

Initiated strategic diversification by

foraying into Equipment

manufacturing

First 200 MW unit at Singrauli commissioned

GOI conferred status of

“Navratna”

NTPC’s installed capacity exceeds 20,000 MW

Rechristened as “NTPC Limited” in line with diversifications

NTPC installed capacity crosses

30,000 MW mark

Listed on Indian stock exchanges

GoI disinvests another 5% stake

Coal Mining Block allocated

20032003

Commenced construction of first

hydro-electric power project

NTPC builds up a total installed capacity of 10,000 MW

20102010

Growth of NTPCGrowth of NTPC First CPSE to be granted ‘Maharatna’ status

• Current Operating Capacity–35,354 MW (Including JV of 3,864 MW)

• 20 Coal Based and 8 Gas Based operating Power stations

• 15,740 MW Under Construction (includes hydro) in 15 projects

• More than 30,000 MW under various stages of development (under

bidding / FR finalized).

• Largest generator in India with a share of 28.6%.

• One of the largest Indian companies with market cap of over Rs.

160,000 Crores

• Net worth of over Rs. 62,000 Crore (FY-10)

• Total Assets of over Rs. 112,000 Crore (FY-10)

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NTPC TodayNTPC Today

Region Coal Gas TotalNorthern 8015 2312 10327

Western 7520 1293 8853

Southern 4100 350 4450

Eastern 7900 - 7900

JVs 1924 1940 3864

Total 29459 5895 35354

RIHAND(2,000 MW)RIHAND(2,000 MW)

SINGRAULI(2,000 MW)SINGRAULI(2,000 MW)

FARIDABAD(430 MW)FARIDABAD(430 MW)

DADRI(817 MW)DADRI(817 MW)

NCTPP(840 MW)NCTPP(840 MW)

ANTA(413 MW)ANTA(413 MW)

AURAIYA(652 MW)AURAIYA(652 MW)

UNCHAHAR(840 MW)UNCHAHAR(840 MW)

TANDA(440 MW)TANDA(440 MW)

KAHALGAON(840 MW)KAHALGAON(840 MW)

FARAKKA(1,600 MW)FARAKKA(1,600 MW)

KORBA(2,100 MW)KORBA(2,100 MW)

VINDHYACHAL(2,260 MW)VINDHYACHAL(2,260 MW)GANDHAR

(648 MW)GANDHAR(648 MW)

KAWAS(645 MW)KAWAS(645 MW)

TALCHER KANIHA(3,000 MW)TALCHER KANIHA(3,000 MW)

RAMAGUNDAM(2,600 MW)RAMAGUNDAM(2,600 MW)

SIMHADRI(1,000 MW)SIMHADRI(1,000 MW)

KAYAMKULAM(350 MW)KAYAMKULAM(350 MW)

TALCHER Thermal(460 MW)TALCHER Thermal(460 MW)

KOLDAM(800 MW)KOLDAM(800 MW)

GAS POWER STATIONS

THERMAL POWER STATION

HYDRO POWER PROJECTS

TAPOVAN VISHNUGAD(520 MW)TAPOVAN VISHNUGAD(520 MW)

RAMMAM III(90 MW)RAMMAM III(90 MW)

LOHARINAG PALA(600 MW)LOHARINAG PALA(600 MW)

LATA TAPOVAN(162 MW)LATA TAPOVAN(162 MW)

RUPSIABAGAR KHASIABARA(260MW)RUPSIABAGAR KHASIABARA(260MW)

ONGOING PROJECTS

SIPATSIPAT

BARHBARH

BTPS(705 MW)BTPS(705 MW)

Regional Spread of Generating Facilities

No of plants Capacity MW

NTPC Owned

Coal 15 27535

Gas/Liquid fuel 7 3955

Total 22 31490Owned by JVs

Coal & Gas 6 3864

Total 28 35354

BONGAIGAON(750 MW)BONGAIGAON(750 MW)

VALLUR((1000 MW)VALLUR((1000 MW)

MAUDA((1000 MW)MAUDA((1000 MW)

RGPPL(1480 MW)RGPPL(1480 MW)

NTPC-Our Pan India Presence

Generating Facilities

NTPC-Commissioned Projects in Uttar Pradesh

Sl.No Name of Power Station Total Capacity -MW Ave. PLF in last 3 years (2008 –till Nov.2011)

1 Singrauli TPS 2000(5X200MW+2X500MW) 91.2

2 Rihand TPS 2000 ( 4X500MW) 94.1

2 Unchahar TPS 1050(5x210 MW) 92.5

3 Tanda TPS 440(4X110MW) 89.08

4 Dadri NCTPS 1820 (4X210MW+2X490MW) 91.83

5 Dadri Gas power station 829.78 MW(4x130.19+2X154.5) 73.83

6 Auraiya Gas power station 663 .36MW(4X111.19+2X109.3 ) 71.38

NTPC-Upcoming Projects in Uttar Pradesh

Sl.No Name of Power Station Total Capacity -MW

1 Tanda Stage-II TPS 1320(2X660MW)

2 Bilhaur TPS 1320(2x660 MW)

3 Unchahar Stage-V TPS 500 (1X500MW)

4 Rihand TPS 1000( 2X500MW)

5 MEJA ( JV) 1320(2X660MW)

INTRODUCTION OF TANDA TPS Tanda Thermal Power Station (4 X 110 MW) was

commissioned in the years 1988-90 by UPSEB. The Plant was taken over by NTPC in Jan 2000 These units were supplied by BHEL The operating history of the unit is as below

Unit No Date of Commissioning

Date of Commercial operation

Running Hours up to12 / 99

No. of Tripping

No. of Tripping/ 1000 Hrs

1 21/03/88 01/01/90 37269 1957 52.51

2 11/03/89 01/04/91 38678 1670 43.18

3 28/03/90 01/10/93 30238 1359 44.95

4 20/02/98 01/07/98 9281 426 45.90

PRE-R&M PERFORMANCE OF TANDA TPS

Year PLF (%) Availability (%) Partial Loading

94-95 26.72 42.34 36.88

95-96 35.36 51.43 31.25

96-97 37.19 57.83 35.52

97-98 31.21 48.25 35.32

98-99 33.49 51.38 34.71

99-00 21.59 37.89 43.16

PRE-R&M CONDITION/PROBLEMS

Need for R&Mo As seen above, the number of tripping of the units was abnormally high,

which resulted in deterioration in the condition of the turbine & generator. The PLF of the station never crossed 38% and the specific oil consumption was very high.

o Besides, there were a number of major problems in the units which are listed below:

Problem in Boiler areao Extensive corrosion inside boiler tubes in all units due to poor water

chemistry resulting in frequent tube leakages. o E & F coal mills in all units were not available. Other mills were in very bad

condition. Units required continuous oil support.o Secondary air damper control (SADC) & burner tilt were inoperative.o Most of the control valves were passing.

R&M OF TANDA THERMAL POWER PLANT

o Bottom ash handling system totally inoperativeo All wall de-slaggers and air pre-heater soot blowers were

out of service.o APH baskets were heavily choked, ID fan impellers were

eroded.o Only 3 to 5 fields were available in each ESP.

Turbine Areao Heavy scaling and leakages in the condenser of unit 1, 2 &

4. Poor condenser Vacuum (-0.58 to -0.6 Kg/cm2) causing low load operation.

o Only 5 out of 28 CT fans were available.o HP heaters were not available in all four units .

R&M OF TANDA THERMAL POWER PLANT

Electrical Systems:• Obsolete switchgear.• Unreliable line protection and inaccurate energy

meters• Design deficiency in Generator rotors • Failures in insulating cylinders below the retaining

rings in Unit#2 & 3.

Control & Instrumentation:• Obsolete & Unreliable C&I system.• UPS not provided in unit # 1, 2 & 3.

R&M OF TANDA THERMAL POWER PLANT

MAJOR R&M ACTIVITIES CARRIED OUT IN BOILER AREA:

Replacement of entire banks of economisers Replacement of water wall panel, burner panel Renovation of reheater, superheater & ceiling superheater Replacement of high pressure valves Replacement of burner & PF piping Renovation of ducts & dampers Renovation of milling system Replacement of Air Preheater baskets Revival of scraper conveyor & clinker grinder Addition of redundancy in fuel firing system( New Mill).

R&M OF TANDA THERMAL POWER PLANT

Turbine & auxiliaries: Complete replacement of condenser tubes Renovation / restoration of HP/LP bypass system Renovation of BFP & condensate booster pump Renovation of 11 & 6 ata Auxiliary Steam Headers Commissioning of CT fans

Electrical and C&I: Installation of Digital Voltage Regulator Replacement of 220 V battery bank Restoration of protection system of 6.6 KV system Renovation of HT/LT switchgear Revival of Unit-3 C&I system including new DDC controls Re-commissioning of auto loops Replacement of turbo-supervisory instruments

R&M OF TANDA THERMAL POWER PLANT

Technology Improvement To improve performance and operational flexibility, technology up-gradation

is necessary for a number of systems. The following activities are being carried out under this head:

Introduction of DDCIMS & DAS Modernisation of Turbine Governing system. Introduction of PLC Based Control System in CHP Event Logger & GPS for EHV Equipments Disturbance Recorder for Outgoing Lines

Environment & Statutory Requirement To meet the environmental standards the following activities have been

undertaken: Retrofitting of ESP. Raising of Ash Pond Installation of CO, Sox & Nox Analyzers Installation of Autoclave for Hospital Waste Revamping of Sewerage System Installation of Effluent treatment plant.

IMPROVEMENT IN PERFORMANCEYEAR Generation

(MU)PLF (%)

Avaiability (%)

APC (%)

Sp. Oil(ml/Kwh)

Heat Rate(Kcal/Kwh)

 2000-01 1190 30.87  52.12  21.33 38.87 3762

 2001-02 2101 54.52  73.92  16.1 11.08 3364

 2002-03 2219 57.6  67.01  13.84 2.12 3135

 2003-04 2911 75.32  83.57  12.81 0.92 2845

 2004-05 3318 86.07  90.87  12.00 0.74 2758

 2005-06 3330 86.39  87.42  11.88 0.62 2753

2006-07 3512 91.14 90.21 11.34 0.4 2750

Cumulative R&M Expenditure is only 0.69 Cr./MW

Cumulative R&M Expenditure is only 0.69 Cr./MW

Turn Around of NTPC taken over stations Through R&M Interventions

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POWERING MILLION SMILES