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Set up as the Central Electricity Board in 1949, National Electricity Board until !990 and since then as Tenaga Nasional Berhad (TNB), it is the largest.

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Presentation on theme: "Set up as the Central Electricity Board in 1949, National Electricity Board until !990 and since then as Tenaga Nasional Berhad (TNB), it is the largest."— Presentation transcript:

1 Set up as the Central Electricity Board in 1949, National Electricity Board until !990 and since then as Tenaga Nasional Berhad (TNB), it is the largest electricity utility in Malaysia and a leading utility company in Asia. Core business: Generation, Transmission and Distribution of electricity No. of Employees: more than 34,900 Almost RM 99 billion in assets Total installed capacity more than 20,000 MW

2 Energy Demand in Malaysia
Electricity Industry in Malaysia Energy Demand in Malaysia

3 Introduction to TNB Janamanjung (TNBJ)
(A wholly owned subsidiary of Tenaga Nasional Berhad) Current Plant Configuration - 3 x 700 MW Coal Fired Current Net Capacity MW Commissioned in 2003 Extension: 1 X 1000MW USC Boiler by March 2015 Current manpower: 525

4 TNBJ’s location in Peninsular Malaysia

5 Main Plant (Unit 1, 2 & 3) Type of Plant - Pulverised Coal Firing
Net Capacity ,100 MW Plant Configuration x 700 MW Boiler Capacity x 2390 t/hr of steam Interconnection kV, double circuit line Current coal sources: Kalimantan (Indonesia), Newcastle (Australia) & South Africa procured through TNB Fuel (TNB subsidiary) Coal stockyard design for 1.5 months supply Estimated annual consumption 6 million tones

6 1. BACKGROUND – Project Overview
New Plant - Unit 4 Plant Capacity 1000 MW (Nominal) Technology Pulverized Coal Combustion; Supercritical Plant Project Concept Build, Own and Operate (BOO) Project Start Date 31 March 2011 Scheduled Completion Date for EPC Contract 31 March 2015 Emission Standards World Bank Requirements & Malaysian DOE Standards 1. BACKGROUND – Project Overview

7 1. BACKGROUND – Project Overview
New Plant - Unit 4 EPC Contract Alstom n CMC Consortium Owner’s Engineer Tokyo Electric Power Services Co. Ltd and Minconsult Sdn. Bhd. Joint Venture 1. BACKGROUND – Project Overview

8 1. BACKGROUND – Satellite View

9 2. TECHNOLOGY – Comparison
Salient Features M 1/2/3 M4 Temperature 566 oC 600 oC Pressure 165 bar 270 bar Efficiency 34 -37% 38-42% Reduced CO2 emission Total reduction = 60gCO2/kWh Boiler Material – Final Superheater Up to Alloy Steel (T91/T92) Stainless Steel (304H) Boiler Feed pump 3 x 50 % Motor driven 2 x 50% Turbine driven + 1 x 30% motor driven (start-up/back-up) Rotor type Solid monobloc forging Welded rotor (HP/IP/LP) IPB Type Natural Cool Forced Cool Stringent water regime Uses Boiler Drum, can do Blowdown Once-through Boiler, uses Condensate Polishing Plant

10 1. BACKGROUND – Key Dates

11 2. TECHNOLOGY – Ultra-supercritical boiler
Supercritical technology is considered as a fully proven technology The reference plant for the ultra-supercritical plant in US and China

12 2. TECHNOLOGY – Advantage of Ultra-supercritical
Low Environmental Emissions Operate at higher efficiencies of average ~ 40% (Consume less coal and therefore produce fewer emissions per kWh output) Reduction of 158,000 metric ton/annum of CO2 emission in comparison to a similar conventional power plant.

13 Flue Gas Emission Design
Environmental Designs and Standards Flue Gas Emission Design Parameters DOE Malaysia World Bank M 1/2/3 M4 Nitrogen Oxide (NO2) 1700 mg/Nm3 max 650 mg/Nm3 max. 510 mg/Nm3 max. Sulfur Dioxide (SO2) 3500 mg/Nm3 max 750mg/Nm3 max. 200 mg/Nm3 max. Particulates/Dust 400 mg/Nm3 max 50mg/Nm3 max. Carbon Monoxide (CO) NA 200mg/Nm3 max. Opacity 40% 20% Flue Gas Emission Limits/Design for Manjung 1,2 & 3 comply with World Bank Guideline

14 TNBJ’s 5-Year Plant Performance Unplanned Outage Rate (%)

15 TNBJ’s 5-Year Plant Performance
Sales TNBJ’s 5-Year Plant Performance

16 TNBJ’s 5-Year Plant Performance Plant Output Factor (%)

17 Risk TNB’s definition of risk: Anything that has the potential to prevent the organisation from achieving its objectives. TNBJ has identified 7 specific risks: Specific Risk ID Specific Risk GEN-JAN-0001 Low Plant Reliability GEN-JAN-0004 Breach of plant security GEN-JAN-0014 Breach of Legal and Regulatory requirements. GEN-JAN-0024 Fire or explosion GEN-JAN-0025 Accidents leading to fatalities / injuries or property damage GEN-JAN-0029 Corruption/ fraud GEN-JAN-0031 Low Plant Efficiency

18 Common Systems Risk Profile
No Description of Shared Critical System Description of Impact on System Failure Likelihood of Failure Impact of Failure Gross Risk Rating 1 Coal Delivery System Unavailability of coal to all boilers. Likely Catastrophic High 2 Water Treatment Plant Unavailability / Contaminated Demin water to the plant. Moderate 3 Hydrogen Storage Common storage for all unit generators 4 Distillate Storage & Supply System Common storage for all units. Used for light up and combustion support. Unlikely 5 Raw & Service Water Supply Unavailability of Demin Water to boilers.

19 Issues & Challenges Coal spontaneous combustion Boiler tube leak
Strain on plant (higher demand and low cost) Ensuring variance of coal (prevent over reliance) Decrease in supply of good coal, more competition Tighter Environmental Regulations Public perception; easy scapegoat

20 1) Coal spontaneous combustion
Coal is susceptible to spontaneous combustion. Preventive measures Compacting coal piles to reduce the amount of air within the pile. Minimizing coal storage times, First In First Out (FIFO) Continuous monitoring for hot spots. When a hotspot is detected, the ignited coal should be removed. Regular & disciplined housekeeping

21 2) Boiler Tube Leak Tube overheating Clinker formation
Preventive measures Uncompromising Sootblowing activities. Adhering plant operating limits Replacement of component based on life assessment study. Condition monitoring of boiler tube during overhaul. Low coal quality Differing operational regime for new coal Ageing plant Over heating of boiler tubes

22 3) Strain on Plant (higher demand and low cost)
Coal plant required to run constantly on full load due to: High demand of electricity High merit order, high load factor. Cheaper to burn coal than gas Low coal CV (require more coal per MW) – strain on coal delivery system Spare must be readily available. Long term agreement with Service Providers. Preventive Measures

23 4) Varieties of coal Different types of coal used, each with different properties and characteristics. Each trial burn has its own risk. Boiler needs to be tuned according to type of coal Overheating, emission control Preventive measures Alert to what type coal is being sent to boiler. More attention on coal milling operation. Daily discussion on coaling activities during Production Meeting

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26 5) Decrease in supply of good coal, more competition
Preventive measures Increase in maintenance frequency of critical equipment eg mills Support from OEM on boiler tuning Engage Technical Service Advisor

27 6) Tighter Environmental Regulations
Investment for compliance Bag filters FGD Improved boiler design and technologies

28 7) Public perception Long outstanding perception of coal is dirty
Conveniently blamed by public Preventive Measures Improve awareness and Educate the public Improve relations/buy in with public esp surrounding communities CSR program with communities

29 CSR Activities by TNBJ

30 Program Penanaman Bakau bersama Komuniti di Daerah Manjung melibatkan murid-murid sekolah dan penduduk kampung . Program ini diadakan untuk mendidik para peserta kepentingan dan sumbangan pokok bakau dalam kehidupan kini.

31 Program Sambutan Perayaan Deepavali di Rumah Anak-anak Yatim Seri Manjung diadakan untuk meraikan anak-anak yatim sempena perayaan Deepavali. Persatuan dan kesatuan di TNB Janamanjung turut serta dalam program ini.

32 Program Sambutan Perayaan Tahun Baru Cina di Rumah Orang-orang Tua dan Kg KDSK Seri Manjung untuk meraikan orang-orang tua dengan pemberian limau mandarin, angpau dan jamuan makan tengah hari.

33 Program Kayuhan Hijau bersama DOE Negeri Perak diadakan sempena Minggu Alam Sekitar Malaysia. Warga kerja TNB Janamanjung turut terlibat dalam kayuhan ini yang bermula di UniKL dan berakhir di Marina Island.

34 Program Back to School Di Pasaraya Giant Seri Manjung diadakan untuk membantu meringankan beban keluarga kurang berkemampuan untuk persediaan persekolahan anak-anak mereka. Sepasang baju sekolah dan keperluan pembelajaran disumbangkan. Beberapa buah keluarga kurang berkemampuan di sekitar kawasan Seri Manjung terlibat dalam program ini.

35 Program ‘Confirm A’ Untuk Pelajar Tahun 6 di sekitar Daerah Manjung telah diadakan dengan kerjasama diantara TNB Janamanjung Sdn. Bhd. dan Uniten. Program ini membolehkan pelajar Tahun 6 membuat latihan UPSR melalui laman sesawang yang direka khas oleh Professor Dr. Azree dari Uniten.

36 OTHER ACTIVITIES Majlis Sumbangan kepada Akaun Amanah CSR telah diadakan di SUK, Ipoh Perak. Akaun Amanah CSR ini ditubuhkan untuk kerajaan Negeri Perak melaksanakan aktiviti CSR di seluruh Negeri Perak.

37 Awards Received by TNBJ

38 ASEAN Coal Awards – 25th September 2013
Organized by ASEAN Centre for Energy to promote coal and Clean Coal Technology (CCT) TNB Janamanjung is the sole representative for Malaysia and won 2 categories : Corporate Social Responsibility (CSR) : “TNBJ’s CSR – Station in Harmony with Community” Special Project : “TNBJ Quality Journey to PAS55 Certification”

39 Human Resource Minister Award 2013
– Large Employers (Service) 13th December 2013

40 TNBJ Won Bronze For Product Excellence Award
In Global CSR Summit & Awards 2014 In Bali, Indonesia 3rd April 2014

41 Thank You


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