DONGFANG ELECTRIC CORPORATION LIMITED

Dr. Harry Chen, Vice President

April 20th, 2012

China Central Government

100%

50.03%

General Introduction

Shanghai Stock ExchangeCode: 600875

Hong Kong ExchangesCode: 1072

Listed in

Annual Output (MW)No.1 in the world consecutively for 8 years

New Orders Composition

5,000 MW of annual production capacity for R&M jobs (~25 Units)

Revenue: 6.8 Billion USDCurrent Assets: 13.1 Billion USD

Total employee: 19,990

(1 RMB = 0.1585USD)

General Introduction

0

10,000

20,000

30,000

40,000

2004 2005 2006 2007 2008 2009 2010 2011

1000 MW Ultra-super Critical

600 / 660 MWUltra-super Critical, Super-Critical, Sub-Critical

300 / 350 MW Super-Critical, Sub-Critical

CFB Unit50/60MW, 135/150MW, 200/210MW, 300/350MW and 600MW

Reference: Over 40 Sets of 1000MW,Over 250 Sets of 600MW,Over 360 Sets of 300MW,Over 300 Sets of 200MW and below

200 / 210 MW Sub-Critical

Unit Class and Fleets

Pump Storage Type:

1 MW to 770 MW

1 MW to 200 MW

Francis Type:

Kaplan Type:

Bulb Type: 1 MW to 75 MW

Pelton Type: 1 MW to 200 MW

50 MW to 300 MW

Reference:Hundreds of Hydro Units capacity from 1MW to 770MW770MW, World 2nd Largest Francis Type75MW, World Largest Bulb Type

Manufacture, Hydro

Manufacture, Gas Turbine

Technical Corporation with MHI, Japan for Gas Turbine

M701F

Simple Cycle: 320MW

Combined Cycle: 480MW

M701D

Simple Cycle: 144MW

Combined Cycle: 213MW

Reference: M701F, 29 SetsM701D, 2 Sets

Manufacture, Nuclear

Nuclear Island Equipment, Conventional Island Equipment

Unit Capacity 1000MW to 1750MW

Generation 2+ CPR1000

Generation 3 EPR

Generation 3 AP1000

70% Chinese Market Share for Conventional Island

50% Chinese Market Share for Nuclear Island

Double-Fed Type: 1MW, 1.5MW, 2.5MW

Direct-Drive Type: 1.5MW, 2.5MW, 3MW

Manufacture, Wind

Reference: More than 2,600 units installed

4,000 units contracted

3MW, 5MW

Manufacture, Solar

Solar Power Portfolio

DEC LimitedDEC Limited

ThermalThermal HydroHydro

Gas TurbineGas Turbine

WindWind

NuclearNuclear

DEC Manufacture

SolarSolar

DEC Capabilities

Remark: *only a few projects

Thermal Hydro Nuclear Wind Gas Solar

Equipment

Manufacture √√√√ √√√√ √√√√ √√√√ √√√√ √√√√

Plant

Turnkey EPC √√√√ √√√√* √√√√ √√√√ √√√√

Plant Service√√√√ √√√√ √√√√ √√√√ √√√√ √√√√

� Total 89 Units in 28 Plants

（（（（41,860MW））））

34 Units in operation

（（（（11,535MW））））

Business in India, Projects

Dongfang’s Clients in India

• ABHIJEET GROUP

• ADANI

• APPL

• BGR ENERGY SYSTEM

• DPL

• EAST COAST ENERGY PVT LTD

• JPL/CLP INDIA

• JSW

• KSK

• LANCO

• VEDANTA

• WBPDCL

……

HPEfficiency

IP

Efficiency

LP

Efficiency

Heat RateKJ/KWh

（（（（KCal/KWh））））

Before R&M 78.8% 88.3% 77.6%8625

(2060)

Design Value

for R&M85 % 92.5% 87%

8143(1945)

After R&M 85.5% 92.6% 87.9%8128

(1941)

Exhaust Steam Pressure：：：： 5.2 kPa

A Typical 200MW Steam Turbine Flow Path R&M

Xuzhou Power Plant, unit #7, flow path R&M in 1998

6%6%

R&M Case Study

(Commissioning in 1985, Designed Heat rate 8450 KJ/KWh)

According to Site Inspection & Evaluation, Experiments, Analysis, Computation, we concluded and provided the R&M solutions comprising three portions.

A Typical R&M Case in China (Xiangyang Power Plant #1)

Capacity increased from 300MW to 330MW

Part One Upgrade and Renovation

Part Two Refurbishment

Part Three Miscellaneous

R&M Case Study

(Commissioning in 1998 ; R&M in 2011 )

No. Modification ItemsReduce of Heat Rate (KCal/KWh)

Reduce of Auxiliary Power Consumption (%)

1 Optimization of Pulverizing and Combustion System 3.5

2 Renovation of Fans 0.175

3 Optimization of Thermodynamic System 3.5

4 Vacuum Sealing 8.4

5 Vacuum Pumping System

6 Hi-Lo Speed of Circulating Water Pump 0.01

7 Flow Path of Steam Turbine 121.8

8 Boiler Feed Water Turbine

9 Boiler Body 5.6

10 Generator Capacity Increasing

11 Electrical system

12 Coal Mill

13 Rubbery Ball Cleaning Device

14 Turbine oil treatment device

15 Intermittent and continuous drain system

142.8 0.424

Part One Upgrade and Renovation

R&M Case Study

Part Two Refurbishment

No. Modification Items

1 Insulation Replacement

2 Optimization of Operation Mode

3 Electrical System

4 Thermal Control system

Part Three Miscellaneous

No. Modification Items

1 Replacement of Condenser Pipe

2 Heating System Modification

3 Add Oxygen Measurement Sensor to Boiler

4 Recommended items for Generator Capacity increasing

5 Add inverter to Desulfurization Booster fans

R&M Case Study

The Investment will be returned in 3 ~ 4 years.

Summary

Modification Items Before R&M After R&M

Heat Rate of the generating

Unit (by total R&M)

10224 kJ/kWh

(2446 kcal/kWh)

9376 kJ/kWh

(2240 kcal/kWh)

Heat Rate of the generating

Unit (by ST modernization)

10224 kJ/kWh

(2446 kcal/kWh)

9523 kJ/kWh

(2275 kcal/kWh)

Heat Rate

of the Steam Turbine

8686 kJ/kWh

(2075 kcal/kWh)

7920 kJ/kWh

(1892 kcal/kWh)

Plant Output 300MW 330MW

Lifecycle25-10=15

yearsRefurbish to 25

years

8%8%

R&M Case Study

A Typical R&M Case in China (Xiangyang Power Plant #1)

Capacity increased from 300MW to 330MW

10%10%

� To meet the requirement of larger capacity, from 300MW to

330MW, and solve the problems due to the change of coals such

as lower steam temperature at reheater outlet; slagging in the

furnace; high flue gas temperature at APH outlet. The retrofit

scheme for boiler established by DEC through performance

calculation as below:

� Add about 1500m2 of vertical section low temperature reheater

heating surface;

� H-FIN type economizer is used instead of smooth economizer;

� Low-NOx horizontal dense-lean burner is adopted.

R&M Case Study

Boiler R&M (Xiangyang Power Plant #1)

Capacity increased from 300MW to 330MW

Item Before retrofit After retrofit

Unit capacity 300MW 330MW

Maximum continuous rating 1025 t/h 1077 t/h

Exit gas temperature

(after correction) 145℃ 135℃℃℃℃

Boiler efficiency

(after correction)91.92% 93.22%

NOx emission (O2=6%) 422mg/Nm3 360mg/Nm3

High temperature reheater

outlet steam temperature 522℃ 540℃℃℃℃

R&M Case Study

Boiler R&M (Xiangyang Power Plant #1)

Capacity increased from 300MW to 330MW

10%10%

� In order to solve the problem of low steam temperature at

reheater outlet, which is influenced by the low exhaust

steam temperature of steam turbine high pressure cylinder,

the retrofit scheme for reheater system established by DEC

through performance calculation is to add about 770m2 of

vertical section low temperature reheater heating surface

located in the front deflecting chamber in the back pass to

increase the heat absorption of low temperature reheater,

thus ensuring the reheater outlet steam temperature is

540℃ and no overheating happens to the reheater under

various load.

R&M Case Study

Boiler R&M (Qinling Power Plant #3, 200MW)

Item Before retrofit After retrofit

Unit capacity 200MW 200MW

High temp reheater

outlet steam temp515℃ 540℃℃℃℃

� DEC established a comprehensive retrofit scheme after performing

feasibility analysis and adequate demonstration for the combustion

system retrofit for Beilun Power Plant 2# imported boiler. The

scheme is to replace the original 36 pieces of dual-channel burners

with new type low NOx swirl PC burners self-developed by DEC, to

keep the original elevations of burners, to arrange OFA nozzles at

the proper positions of top layer of burners at the front and rear

walls, dividing the furnace into the combustion zone and burnout

zone so as to realize further staged combustion.

� The NOX emission is reduced from 700mg/Nm3 to 280～360

mg/Nm3 after the retrofit. Meanwhile, the boiler efficiency retains

unchanged. Hence, this retrofit met the environmental protection

requirement and realized its expected goal.

R&M Case Study

Boiler Burner Renovation (Beilun TPP #2, 600MW)

Item Before retrofit After retrofit

Unit capacity 600MW 600MW

Boiler efficiency 92.75% 92.97%

NOx emission (O2=6%) 633mg/Nm3 304mg/Nm3

R&M Case Study

Boiler Burner Renovation (Beilun TPP #2, 600MW)

50%50%

1. Applying new technology.

2. Replacement of components, which have exhausted their life due

to various reasons.

3. Change of components that are needed to adhere to prescribed

environmental standards.

4. Necessary modifications in the system to run the unit at rated

capacity with the available low calorific coals.

Typical Proposal for Indian TPP R&M Projects( LMZ Steam Turbine)

Indian LMZ 200MW Focus

DEC(India), Site ManagementDEC(India), Site Management

DEC, R&D Centre

(Design Institute)

DEC, R&D Centre

(Design Institute)

DEC, Power Plant Service Division (R&M Contractor)DEC, Power Plant Service Division (R&M Contractor)

ClientClient

Site Inspection

Diagnosis

Evaluation

Engineering of TPP

Detailed Design

…….

Site Inspection

Diagnosis

Evaluation

Engineering of TPP

Detailed Design

…….

DEC

Turbin

e

DEC

Turbin

e

ST (GT)&

Auxiliaries

ST (GT)&

Auxiliaries

DEC

Boiler

DEC

Boiler

Boiler

Auxiliaries

Boiler

Auxiliaries

DEC

Generator

DEC

Generator

Generator

Auxiliaries

Generator

Auxiliaries

Sub-vendor

Out of India

Sub-vendor

Out of India

System Auxiliaries

(Fans, Pumps,

Valves, Piping)

I&C (DCS)

Commissioning

……

System Auxiliaries

(Fans, Pumps,

Valves, Piping)

I&C (DCS)

Commissioning

……

Sub-vendor

Within India

Sub-vendor

Within India

Civil Construction

Erection

Materials

Fire-Fighting

Repair

……

Civil Construction

Erection

Materials

Fire-Fighting

Repair

……

R&M Project

Organization for India

R&M Case Study

Dongfang 200MW vs. Indian LMZ 200MW

Item Comparison Dongfang LMZ

1 Type 2F 2F

2 Rated Power 215MW 210MW

3 Max Power 219.9MW 215MW

4 Main Steam 12.75MPa/535℃℃℃℃ 12.74MPa/540℃℃℃℃

5 Reheat Steam 2.207MPa/535℃℃℃℃ 2.342MPa/540℃℃℃℃

6 Max Stream Flow 670 t/h 670 t/h

7 Speed 3000rpm 3000rpm

8 HP I + 11 I + 11

9 IP 11 11

10 LP 2x4 2x4

11 Weight 500T 500T

12 LP Last Row Blade 650 - 807 mm 765/740mm

Indian LMZ 200MW Focus

LMZ 200MW R&M is based on our RICH experience on 200MW manufacture/R&M and operation data accumulation

I. DEC has supplied 200MW Class Thermal Power Units to 66

power plants with 92 Boilers, 106 Turbines and 104 Generators.

II. Out of the 106 sets of 200MW steam turbines manufactured by

DEC, we performed flow path R&M to 42 units.

III. DEC also performed flow path R&M to 20 units of 300MW and 31

units of non-OEM 300MW units with various outputs.

IV. Since manufacturing the first 200MW class unit in the 1970’s,

DEC has applied advanced technologies to the original design,

adopting 600MW and 1000MW ultra-supercritical advanced

steam turbine technologies.

Indian LMZ 200MW Focus

Turbine factoryBrand new manufacture facility re-located in Deyang starting operation in May 2010, just

two years after the major earthquake which destroyed all the facilities.

It is the most advanced and the largest turbine manufacture facilities in the world.

Thank you and welcome to visit us

You have to see to believe it