Rathin Basu

March 25th 2015

Indian Power Grid Developments

Country President, Alstom Grid,

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 2

kV

1990 1950 1960 1970 1980

35~ 110kV

220 kV

330 kV

500 kV AC/DC

2000

1200 kV

2005

1100 kV

765kV

750kV

800 kV HVDC

2011

2012

154 kV

765kV

220 kV

KOREA

CHINA

INDIA

400 kV

Evolution of Voltage level of Indian Grid…

Anticipated the evolution &

Timely Investment in

Indian Facilities

2013

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 3

Grid in 2011

South Grid

South

West

North

East

Northeast

Till 1991

5 Regional Grids

5 Frequencies

October 1991

East & Northeast

synchronized

March 2003

West synchronized

with East & Northeast

August 2006

North synchronized

With Central Grid

Central Grid

World’s Largest

Syncronised Grid

259 GW

Dec.’14

31st Dec’13

One Country

One Grid

One Frequency

Milestones towards One Country-One Grid - One Frequency

44 GW of Inter Regional Transfer

29 of 50 substations @ 765kV

3 HVDC Back to Back stations

National Load Dispatch Centre

3 Regional Load Dispatch Centre

National Transmission Asset Management Centre

(under commissioning)

Worlds largest Wide Area Monitoring Project

(under execution)

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 4

Building India’s Transmission Grid EHV/UHV AC backbone for increasing Power Flow

- 29 out of 50 Substations @ 765 kV AC have Alstom Grid technology

Establishing India’s Power Backbone @ 765 kV ● Established India’s first 765 kV project at NTPC Sipat ● Maximum 765kV AC (EHV) substation orders awarded to Alstom Grid ● 29 out of 50 substations to have Alstom Products

● India’s first local manufacture of 765 kV power transformer ● India’s first local manufacture of GIS up to 400 kV ● India’s first local manufacture of 1200 kV CVT for Power Grid Bina

testing station

India’s first 765 kV SS

at NTPC Sipat 765 kV substations built

India’s first locally

manufactured 400 kV

GIS

India’s first locally

manufactured 1200 kV

CVT for Power Grid

Note: EHV - Extra High Voltage (765 kV)

UHV - Ultra High Voltage (1200 kV)

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 5

Building India’s Transmission Grid 800 kV HVDC links for increasing Power Flow & Reactive Power Control

HVDC Projects In India ● Pioneer in Inter-Regional Power bulk power transfer by building 3

Back-to-Back HVDC projects ● In addition to the transmission of real power between the regions, the

links provided also perform a reactive power control role, which helps to stabilize the network voltage.

● 2,000 MW Voltage level: 500 kV

- 3 Back to Back HVDC built by Alstom Grid

- 2 Large HVDC each of 800 kV / 3000 MW under execution

Chandrapur:

1000 MW interconnection

between the Western and

Southern networks

Visakhapatnam:

500 MW interconnection

between the Eastern &

Southern networks

Sasaram, India:

500 MW interconnection

of the Eastern and

Northern networks

HVDC links by Alstom Grid

HVDC Convertor Station at

Sasaram

HVDC Thyristors at

Chandrapur

800 kV/3,000 MW HVDC

Champa-Kurushetra

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 6

Strong Leadership in Network Management System in India

3 out of 5 Regional Load Dispatch Centre

4 out of 4 National Load Dispatch Centers in India,

Bangladesh, Bhutan and Sri Lanka (under execution).

National Load dispatch center for India handles 136 GW

of power flow.

Load Dispatch Centers at Bangladesh and Bhutan handle

100 % of power flow in the respective countries.

NTAMC, world’s largest Remote Asset Management

project (under commissioning)

URTDSM, World’s largest wide area monitoring project

(under execution)

70% of India’s Transmission Grid Power flow is managed by Alstom Grid technology

NLDC, India NLDC, Bangladesh NLDC, Bhutan Regional Load Dispatch Centers

(RLDC) by AG

National Load Dispatch Center

(NLDC) by AG

NLDC Bangladesh

NLDC Bhutan

NLDC

NLDC Sri Lanka

Backup National Load Dispatch

Center (BNLDC) by AG

Regional Load Dispatch Centers

by 3rd party

SRLDC

NERLDC NRLDC

WRLDC ERLDC

Bkup NLDC

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 7

NTAMC (Under Commissioning) – National Transmission Asset Management Centre

By Implementing NTAMC & ULDC, Power Grid has

segregated the Operation & Asset Management

functions with a common set of field measurement

devices

Access Control, Visual Monitoring, Video

Conferencing, IP Telephony integrated into system

Objectives met by NTAMC:

Enable unmanned remote maintenance operation

of transmission assets

Redeploy & optimise skilled resources at

maintenance hubs & reduce administrative costs

Remote fault finding/analysis - reduced down time

SRLDC

NERLDC NRLDC

NLDC

NLDC Bhutan

NLDC Bangladesh WRLDC ERLDC

Regional Load Dispatch Centers

(RLDC) by AG

National Load Dispatch Center

(NLDC) by AG

NLDC Sri Lanka

Backup National Load Dispatch

Center (BNLDC) by AG

Regional Load Dispatch Centers

by 3rd party

NTAMC by AG

Backup NTAMC by AG

RTAMC by AG

NTAMC

Bkup NTAMC

Bkup NLDC

Integrated World’s Largest Transmission Asset Management System Involving 192 Grid Substations

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 8

URTDSM (Under Execution) – World’s Largest Wide Area Monitoring Project

PMUs located at State Sector

Substations

PMUs located at Power Grid

S/S, Central Sector S/S

PMUs located at State Sector Sector

Substations

OFC Cloud

PMUs located

at IPPs

Super PDC at NLDC Super PDC at Bkup NLDC

Project to integrate ~1400 PMUs to the

Grid Control Centres

To enhance Grid Stability thru closer

monitoring of Phasor Angle differences

and the state of damping of low signal

oscillations

Maximise Power Flow

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 9

Benefits Power Grid India’s Technology Road Map

Power Grid can leverage Alstom Grid’s local world class manufacturing facilities of both EHV &

UHV AC-DC Technologies for bulk power transport across India’s five electrical regions which is

expected to reach ~66 GW by 2017.

This industrialisation to help Power Grid,

Manage the largest synchronised grid in the world (installed capacity of 259 GW)

Deal with Power transport between India and neighbouring countries in India Region

To manage significant increase of Grid Interactive renewable power generation, from 13%

(33.8 GW) today to 21% by 2022

Digital Substation technology for AIS & GIS have demonstrated a paradigm shift in,

Reduction in copper use and size of bay

Safety considerations

Engineering & implementation time of bays and

Enabling wide area protection and control

Decade Ahead:

AC backbone to transit from 765 kV to 1200 kV

Expansion of HVDC for bulk power transport and reactive power control

Expansion of Digital Substation technology

Renewable Management to be part of Grid Control Centres

Smart Grid:

Transmission Grid already smart due to extensive deployment of technologies

Smart Distribution Grid thru Smarter Substations, Smart Power Quality Metering, Demand

Response and Storage technologies

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 18/03/2015 – P 10