Apr 13, 2023 1

Climate Change and Power Sector

NTPC Ltd.

Apr 13, 2023 2

Role of Power Sector

Apr 13, 2023 3

World Energy Scenario: Main Contributors of CO2 Emission

1973

15640 Mt of CO2

2006

28003 Mt of CO2

Coal 34.9 %

Oil 50.6 %

Coal 41.7%

Oil 38.5%

Gas 14.4 % Gas

19.4%

Source: IEA, Key Energy Statistics, 2008

Apr 13, 2023 4

Primary Energy Supply Mix of the world

Coal, 24.50%

Nuclear, 0.90%Hydro, 1.80%

Ren & waste, 10.60%

Gas,16.00%

Oil, 47.14%

Coal, 26%

Ren & waste, 10.10%

Hydro, 2.20%

Nuclear, 6.20%

Gas, 20.50%

Oil, 34.30%

1973- 6115 Mtoe 2006- 11741 Mtoe

Source: IEA, Key Energy Statistics, 2008

Apr 13, 2023 5

World Power Generation- different modes

Hydro, 21%

Oil, 24.70%

Gas, 12.10%

Other, 0.60%

Nuclear, 3.30%

Coal, 38.30%

Hydro, 16%

Oil , 5.80%

Gas, 20.10%

Nuclear, 14.80%

Others, 2.30%

Coal, 41.40%

1973- 6116 TWh 2006- 18930 TWh

Fossil Fuel based power generation constitutes the largest mode of power generation in the world and will remain so in the coming decades

Producer TWh %of World

USA 4274 22.6

China 2864 15.1

Japan 1091 5.8

Russia 994 5.3

India 744 3.9

Germany 629 3.3

Canada 612 3.2

France 589 3.0

Brazil 419 2.2

Korea 402 2.1

Rest of world

8332 33.5

World 18930 100

Apr 13, 2023 6

Power Generation Mix of India

3%

9%

11%

52%

25%CoalHydro

Oil & gas

Renewable

Nuclear Coal is expected toremain the preferred fuel for coming decades.

64% of the 11th plan targets consists of coal based generation. Recent developments are encouraging for the nuclear fuel based generation.

Coal Gas & Oil Hydro Nuclear Renewable Total

77456 15934 36648 4120 13242 147403

Source: CEA,Dec 2008

(Figures in MW)

Apr 13, 2023 7

National Power Objectives• Power for all by 2012• Per capita consumption

of power to be increased to 1000 Units by 2012.

• Min. lifeline consumption of 1 unit/ household/ day by 2012.

• Accessibility of electricity by all households by 2012.

Plan Period Capacity addition Targets

10th Plan

(2003-07)

41110 MW

(Achieved: 21080 MW)

11th plan

(2008-12)

78,700 MW

12 plan

(20013-17)

Nearly 82,000 MW

Ambitious Capacity Addition Plans

Issue: How to develop strategies for rapid capacity addition without detrimental effects on the environment.

Apr 13, 2023 8

NTPC’s Approach

Apr 13, 2023 9

NTPC- Powering India’s Growth

NTPC contributes more than one-fourth of India’s total power generation with less than one-fifth capacity

Total Capacity

As on 31.12.2008

Generation

2007-08

NTPC- 29,894 MW ~20.2% of all India

147,402 MW

NTPC- 200* BU 28.5 % of all India

704 BU

* Excluding JVs

All India

NTPC

All India

NTPC

Apr 13, 2023 10

NTPC – AMONGST THE CLEANEST FOSSIL FUEL POWER GENERATORS

Assumptions:1)The largest generating companies with Annual generation above 150 BU2)The companies having minimum fossil fuel mix of 50%

SOURCE: CARMA.ORG: NTPC ANALYSIS*

Apr 13, 2023 11

NTPC’s vision on climate change

“Going Higher on Generation, lowering GHG intensity”

Apr 13, 2023 12

NTPC’s approach to climate change

Reducing Carbon Dioxide Intensity

Introduction of new

technologies

Enhancing Efficiency of Generation

Fuel- Mix (Coal, Gas.

Hydro, Nuclear,Renewable)

Afforestation&

other greenmeasures

Apr 13, 2023 13

NTPC Approach• As a responsible Corporate Citizen, NTPC accords high

priority to its responsibility towards Climate and Sustainability.

• Investment in development of new technology through R&D and Energy Technology center.

• NTPC sets aside up to 1% of its distributable profit for R&D including 0.5 % for technology initiatives for sustainable energy development.

• Generation Capacity Expansion is complemented by Emission Mitigation Endeavours– Sustained effort to enhance plant efficiency– Suitably realign the fuel mix– Adoption of greener and eco-friendly technologies

Apr 13, 2023 14

14

R&D DEPARTMENT FOR APPLIED RESEARCH

ENERGY TECHNOLOGIES: WORKING ON 14 PROJECTS THROUGH IDENTIFIED INSTITUTIONS IN AREAS PERTAINING TO

POWER PLANT EFFICIENCY IMPROVEMENT

CARBON SEQUESTRATION

WASTE HEAT UTILISATION, ETC

ET AND R&D CENTRE BEING MERGED TO FORM NETRA (NTPC ENERGY TECHNOLOGIES RESEARCH ALLIANCE)TO ENABLE MORE FOCUS AND SYNERGISTIC RESEARCH

INTEGRATED GASIFICATION COMBINED CYCLE (IGCC):

– NTPC IN COLLABORATION WITH BHEL IS IN PROCESS OF INSTALLING AN IGCC PROJECT IN AURAIYA.

– NTPC, IN ASSOCIATION WITH NEXANT, HAS DONE STUDY ON GASIFIER SUITABLE FOR INDIAN COAL.

NETRA – Focus on Research and new Technologies

Apr 13, 2023 15

Adoption of higher efficiency units

Sub - critical units Super - critical units

Unit Size 500 MW 500 MW 660 MW 660 MW

MS Pressure kg/cm2 170 170 247 247

MS Steam Temp (O C)

537 537 537 565

RH Steam Temp

(O C)537 565 565 593

Base 0.7%

3.0%

5.1%

Apr 13, 2023 16

Higher Efficiency – Lower Emission

6.16 gm/Kwh6.827.43SOX EMISSIONS(2,000 mg/nM3)**

0.15 gm/Kwh0.170.19PARTICULATES(50 mg/nM3)**

2.00 gm/Kwh2.222.41NOX EMISSIONS(650 mg/nM3)**

835 gm/Kwh9261008CO2 EMISSIONS(272,000 mg/nM3)

BASE - 17 %BASE - 8 %BASEFUEL CONSUMPTION

41%37%34 %PLANT EFFICIENCY*

ULTRA SUPER CRITICAL

SUPER CRITICAL

SUB CRITICAL

* HHV Basis ** Current World Bank Emission Guidelines

Apr 13, 2023 17

Super Critical Technology in NTPC

NTPC adopted supercritical technology for unit size over 500 MW in steps as under:

PLANTS IN ADVANCE STAGE OF CONSTRUCTION

3 x 660 MW Sipat STPP Stage-I

3 x 660 MW Barh STPP Stage-I

UPCOMING PLANTS

Barh-II, Bihar – 2x660 MW (Order Placed)

North Karanpura, Jharkhand – 3x660 MW

Darlipali, Orissa – 4x800 MW

Lara, Chattisgarh – 5x800 MW

Marakanam, Tamilnadu – 4x800 MW

Tanda-II, Uttar Pradesh - 2x660 MW

Meja, Uttar Pradesh - 2x660 MW

Sholapur – 2x660 MW

New Nabinagar-3x660 MW

Many more projects under formulation

Apr 13, 2023 18

Efficiency Improvement through Renovation & Modernization

Restoration, Sustenance & Enhancement of Efficiency

Capacity enhancement Life extension of old units Mitigate obsolescence Compliance to applicable pollution norms Equipment safety Improvement in equipment / system reliability

After 100,000 operating hours machine become due for R&MR&M offers a quick and low cost capacity addition and efficiency enhancement option. R&M objectives are:

Apr 13, 2023 19

HYDRO 4%

GAS 16%

COAL80%

COAL 40000

GAS 8000

HYDRO 2000

COAL 24459

GAS 5435

COAL 82%

GAS 18%

RENEW 1%

HYDRO 12%

NUCLEAR

3%

GAS 14%

COAL70%

Capacity mix - 2012(50,000 MW)

NTPC Fuel Mix by 2017 Capacity mix - 2017

(75,000 MW)Capacity mix - TODAY

(29,894 MW)

COAL 53000

GAS 10000

HYDRO 9000

NUCLEAR 2000

RENEWABLE 1000

Apr 13, 2023 20

Renewable

• NTPC plans to add 1000 MW from renewable sources by 2017.

• Recently signed MoU for 500 MW of wind power in Karnataka.

• MoU with ADB for development of 500 MW from renewable sources.

• NTPC has taken major initiatives for fast tracking its solar power development programme.

• We hope to set up 15MW solar capacity by 2012 and 50 MW capacity by 2014.

Apr 13, 2023 21

Distributed Generation

• NTPC has commissioned 10 projects in off-grid distributed power generation mode based on bi-mass, solar PV, micro hydel etc in villages around projects.

• Several others are planned as part of CSR activities.

• There is also proposal for setting up mini hydel projects at several places in Punjab and North-eastern states.

Apr 13, 2023 22

Green Measures• NTPC has created green wealth and carbon sink in the

form of more than 18 millions trees planted in and around plant areas.

• NTPC has started implementing modern water harvesting systems in all upcoming townships in the projects for better management of water.

• NTPC is committed for development of 1 million Sq feet of green building space within NTPC premises.

• Energy Conservation can also play a major role; NTPC has adopted practices like Online Energy Management Systems, Energy Audit, Water-balance Audit for main plant and BOP equipments.

As per study conducted by National Remote Sensing Agency, Hyderabad, the summer peak temperatures in areas surrounding Ramagundam

Thermal Power Station of NTPC where about 1.2 million trees have been planted, has reduced to the extent of 30 C.

Apr 13, 2023 23

Conclusion

NTPC stands committed for sustainable power development

Apr 13, 2023 24

POWER PRODUCER OF INTERNATIONAL REPUTE

TOWARDS GREENER TOMORROW