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

Energy Demand in Malaysia

Electricity Industry in Malaysia

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Introduction to TNB Janamanjung (TNBJ)

Current Plant Configuration - 3 x 700 MW Coal Fired Current Net Capacity - 2100 MWCommissioned in 2003

Extension: 1 X 1000MW USC Boiler by March 2015Current manpower: 525

(A wholly owned subsidiary of Tenaga Nasional Berhad)

TNBJ’s location in Peninsular Malaysia

TNBJ

Type of Plant - Pulverised Coal Firing Net Capacity - 2,100 MW Plant Configuration - 3 x 700 MW Boiler Capacity - 3 x 2390 t/hr of steam

(175bar@540oC) Interconnection - 500 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

Main Plant (Unit 1, 2 & 3)

1. BACKGROUND – Project Overview

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

New Plant - Unit 4

1. BACKGROUND – Project Overview

EPC Contract Alstom n CMC Consortium

Owner’s Engineer • Tokyo Electric Power

Services Co. Ltd and• Minconsult Sdn. Bhd. Joint

Venture

New Plant - Unit 4

1. BACKGROUND – Satellite View

2. TECHNOLOGY – ComparisonSalient 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 driven2 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

1. BACKGROUND – Key Dates

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

• 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.

2. TECHNOLOGY – Advantage of Ultra-supercritical

Flue Gas Emission Design

Flue Gas Emission Limits/Design for Manjung 1,2 & 3 comply with World Bank

Guideline

Parameters DOE Malaysia World Bank M 1/2/3 M4

Nitrogen Oxide (NO2)

1700 mg/Nm3 max

650 mg/Nm3 max.

650 mg/Nm3 max.

510 mg/Nm3 max.

Sulfur Dioxide (SO2)

3500 mg/Nm3 max

750mg/Nm3

max.750mg/Nm3

max.200 mg/Nm3

max.Particulates/Dust 400 mg/Nm3

max50mg/Nm3

max.50mg/Nm3

max.50mg/Nm3

max.Carbon Monoxide (CO)

NA 200mg/Nm3 max.

200mg/Nm3 max.

200mg/Nm3 max.

Opacity 40% 20% 20% 20%

Environmental Designs and Standards

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

FY2008 FY2009 FY2010 FY2011 FY2012

TNBJ’s 5-Year Plant Performance

Unplanned Outage Rate (%)

TNBJ’s 5-Year Plant Performance

FY 08/09 FY 09/10 FY 10/11 FY 11/12 FY 12/13

10342.38

14045.12

12334.36

14109.51

16290.33

Sales (GWh)

Uni

ts S

old,

GW

hTNBJ’s 5-Year Plant Performance

Sales

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FY 08/09 FY 09/10 FY 10/11 FY 11/12 FY 12/13

69.94

86.23 88.5296.85 98.17

TNBJ’s 5-Year Plant Performance

Plant Output Factor (%)

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

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 Catastrophic High

3 Hydrogen Storage Common storage for all unit generators Moderate Catastrophic High4 Distillate Storage &

Supply SystemCommon storage for all units. Used for light up and combustion support.

Unlikely Catastrophic High

5 Raw & Service Water Supply

Unavailability of Demin Water to boilers.

Unlikely Catastrophic High

Issues & Challenges

1) Coal spontaneous combustion2) Boiler tube leak3) Strain on plant (higher demand and low cost)4) Ensuring variance of coal (prevent over reliance)5) Decrease in supply of good coal, more competition6) Tighter Environmental Regulations7) Public perception; easy scapegoat

1) Coal spontaneous combustionCoal is susceptible to spontaneous

combustion.

o Compacting coal piles to reduce the amount of air within the pile.o Minimizing coal storage times, First In First Out (FIFO)o Continuous monitoring for hot spots. When a hotspot is

detected, the ignited coal should be removed.o Regular & disciplined housekeeping

Preventive measures

2) Boiler Tube LeakTube overheatingClinker 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

• Spare must be readily available.

• Long term agreement with Service Providers.

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

Preventive Measures

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 measureso Alert to what type coal is being sent to

boiler.o More attention on coal milling operation.o Daily discussion on coaling activities during

Production Meeting

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

6) Tighter Environmental Regulations

• Investment for compliance• Bag filters• FGD• Improved boiler design and

technologies

7) Public perception

Preventive Measures

• Improve awareness and Educate the public• Improve relations/buy in with public esp

surrounding communities• CSR program with communities

• Long outstanding perception of coal is dirty

• Conveniently blamed by public

CSR Activities by TNBJ

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.

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.

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.

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.

Program Back to SchoolDi 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.

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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.

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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.

Awards Received by TNBJ

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 :

1. Corporate Social Responsibility (CSR) : “TNBJ’s CSR – Station in Harmony with Community”

2. Special Project : “TNBJ Quality Journey to PAS55 Certification”

Human Resource Minister Award 2013

13th December 2013

Human Resource Minister Award 2013 – Large Employers (Service)

TNBJ Won Bronze For Product Excellence AwardIn Global CSR Summit & Awards 2014 In Bali,

Indonesia

3rd April 2014

Thank You