Olivier Teller

12 November 2014

Pumped Hydro Storage Plants

Brasilia

© 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 - 13/11/2014 – P 2

Alstom ongoing PSP Projects Worldwide

SWITZERLAND

NANT DE DRANCE

6 units of 150 MW Variable Speed 305 m – 428.6 rpm

LINTH-LIMMERN

4 units of 250 MW Variable Speed 613 m – 500 rpm

PORTUGAL

ALQUEVA II

2 units of 130 MW

72 m – 428.6 rpm

SALAMONDE II

1 unit of 209 MW

115 m – 166,7 rpm

INDIA

TEHRI

4 units of 250 MW Variable speed

188 m - 233 rpm

ISRAEL

GILBOA

2 units of 150 MW

430 m - 750 rpm

Equipment + O&M

FRANCE

REVIN

4 units of 200 MW

Rehabilitation

240 m – 300 rpm

LE CHEYLAS

1 units of 256 MW

Upgrade to variable

speed

254 m – 300 rpm

CHINA

Qiongzhong

3 units of 200 MW

308 m – 375 rpm

HOHHOT

4 units of 306 MW

521 m - 500 rpm

PUSHIHE

4 units of 306MW

308m–333.3 rpm

© 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 - 13/11/2014 – P 3

Alstom ongoing PSP Projects Worldwide

© 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 - 13/11/2014 – P 4 - - P 4

What PSP Does

Provide flexibility to balance base load generation

Complement intermittent renewable energies

Optimise electrical grids

© 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 - 13/11/2014 – P 5

Thermal & Nuclear plants optimisation

Time

Power (GW)

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Adjustable Generation PSP, Gas turbine, Hydro

PSP Pumping

Consumption

Base Load Generation Nuclear, Coal, Run of the river hydro, …

© 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 - 13/11/2014 – P 6

Baseload (non flexible)

Wind energy

Demand

Flexible Generation

Excess wind Po

we

r

Time

1min

GW Regulation

Actual Generation

Forecast

1h

Ramp Rate GW

Intermittent

Balancing

load

Generation

24h

GW Time Shift

New need for flexibility

© 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 - 13/11/2014 – P 7

Increase of unit cycling

© 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 - 13/11/2014 – P 8

0

1200000

2400000

3600000

4800000

6000000

7200000

8400000

9600000

10800000

12000000

Unit 1 2005-2007

2006

Increased partial load operation

0

2400000

4800000

7200000

9600000

12000000

14400000

16800000

19200000

21600000

24000000 Unit 1 2008-2010

2009

© 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 - 13/11/2014 – P 9

Extension of operating range

Extended operating range

© 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 - 13/11/2014 – P 10

Electricity market organisation

USA

Mixed market

between

deregulated and

regulated

Europe

Fully deregulated

market

Separation of

transmission and

energy production

PSP owned by GenCo

China

PSP used by TSO

to provide load

following

Israël

Separation of

transmission and

energy production

PSP owned by IPP

remunerated by Grid

operator

© 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 - 13/11/2014 – P 11

PSP revenue in a deregulated market

Arbitrage Buy low, Sell High Challenged by renewables

Ancillary

services

Frequency control Primary, secondary and tertiary reserve

Highly variable depending on

Market

Voltage Control

Black Start

Portfolio Installed base optimisation Depends on the portfolio

Capacity

Mechanism Retributes availability

Highly variable depending on

Market

© 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 - 13/11/2014 – P 12

Range of Pump Turbine Experience

0

200

400

600

800

1000

1200

0 100 200 300 400 500

- - P 12

Head

MW Under construction, variable speed

Wide range of head & output

Yecheon (South Korea)

Sanchong (South Korea)

Muju (South Korea)

Bailianhe (China)

Limmern (Switzerland)

Yangyang (South Korea)

Grand Maison (France)

Super Bissorte (France)

Beni Haroun (Algeria)

Nant de Drance (Switzerland)

Alqueva (Portugal)

Afourer (Morocco)

Pushihe (China) Heimifeng (China)

Le Truel (France)

La Coche (France)

Multi-stage pump turbines Double-stage regulated pump turbines Single-stage pump turbines

© 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 - 13/11/2014 – P 13

< 30 m : Bulbs for coastal regions

La Rance (1966, EDF, France)

24 units of 10MW

11m head

Tidal Reversible Bulb Pump-Turbine Units

Highlights

Use of tidal power

Operation in sea water

© 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 - 13/11/2014 – P 14

< 60 m: Deriaz

Adjustable Runner Blades For Low Heads Installations

Naussac II (1999, EDF, France)

2.65MW Deriaz

head variation from 32 to 57m.

Highlights

Adjustable runner blades

Oil Free plant

© 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 - 13/11/2014 – P 15

Low Head Reversible Francis

Alqueva 1&2 (2004&2012, EDP, Portugal)

2+2 units of 130MW

72m head

Highlights

Thrust bearing on head cover

Ring gate

© 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 - 13/11/2014 – P 16

Medium Head Reversible Francis

Sanchong (2001, KEPCO, Korea)

2 units of 394 MW

393 m head

Tidal Reversible Bulb Pump-Turbine Units

Highlights

Through-stator dismantling

© 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 - 13/11/2014 – P 17

High Head Reversible Francis

Baoquan (2008, SGHBPSC, China)

4 units of 306 MW

510 m head

Highlights

Intermediate dismantling

Individual servomotors

© 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 - 13/11/2014 – P 18

Multistage

Single stage

For high heads

Fixed output

Up to 700 m head

Adjustable output

Double stage

700 m – 1200 m

Adjustable output

700 – 1200 m range

© 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 - 13/11/2014 – P 19

Yang Yang (2006, KOMIPO, Korea)

4 units of 270 MW

798 m head

Highlights

Two adjustable distributors

Shaft line with 4 bearings

Thrust bearing on concrete

below the unit

700 – 1200 m range

© 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 - 13/11/2014 – P 20

Grand Maison (1987, EDF, France)

8 multistage reversible units of 152MW

4 Pelton units of 158 MW

955 m head

1000m + : dual type

© 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 - 13/11/2014 – P 21

Base pumping-generating units and flexible generating units

1000m + : dual type

4 Pelton units

158 MW – 429 rpm

8 Pump-Turbine units

153 MW - 600 rpm

© 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 - 13/11/2014 – P 22

Conventional or Variable Speed PSP

• Conventional = fixed speed; provides power regulation in production mode

• Variable speed = motor generator adjusts turbine speed; provides power regulation in production and pumping mode

- - P 22

40% of European PSP Expected to be Variable Speed

© 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 - 13/11/2014 – P 23

Variable speed PSP

Double Fed Asynchronous Motor Generator

• Adjustable pumping power

• Compatible with larger head variation

• Faster power adjustment

• Pump Turbine global efficiency (+ ~ 1%)

© 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 - 13/11/2014 – P 24

Variable speed : Pump Mode

Discharge

Head

nsync

Fixed speed

Variable speed

nmin

nmax

H max

H min

Head

Variation

H min

H max

H min

H

1.25

Discharge variation

Power adjustment

1 operating

point

© 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 - 13/11/2014 – P 25

+0 / -30 %

+0 / -30 %

+0 / -30 %

+0 / -30 %

Power Storage

Time

Pumping

Power (MW)

18 12 24

Excess Power

to be stored

100 MW

200 MW

300 MW

4 fixed speed Units

of 100 MW

400 MW

0 6

Additional energy

stored

Improved

Network Balancing

Less

starts & stops

© 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 - 13/11/2014 – P 26

Variable speed : Turbine Mode

n11 (rpm)

P11 (KW)

n / H0.5

Best Efficiency

Line

Efficiency Hill Chart Fixed

Speed

Operating

range

Variable

Speed

Operating

points

Dn/n = ± 7%

Dn/n Max = -

7%

Advantage Turbine Efficiency Improvement ( 1%)

© 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 - 13/11/2014 – P 27

Variable speed projects optimisation

Nant de Drance (ordered in 2009, NdD SA, Switzerland)

6 units of 157 MW (174 MVA) 250 m to 390 m

Tehri (ordered in 2011, THDC, India)

4 units of 255 MW (306 MVA) 127.5 m to 227 m

Linthal 2015 (ordered in 2008, NOK, Switzerland)

4 units of 255 MW (300 MVA) 560 m to 724 m

Head range

(& regulation)

Head range (& regulation)

Head range

Regulation

Le Cheylas upgrade (NTP Nov 2013, EDF, France)

1 units of 267 MW (305 MVA) 245 m to 261 m

© 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 - 13/11/2014 – P 28

Spherical valve MG1 (Grenoble)

Runner MG1 (Grenoble)

Unterer Turbinendeckel (Baroda)

Head cover (Baroda)

Linthal 2015 pictures

Feedback from Variable Speed Projects

© 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 - 13/11/2014 – P 29

Linthal 2015 pictures

Feedback from Variable Speed Projects

Stacked rotor rim Slip ring

© 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 - 13/11/2014 – P 30

Linthal 2015 pictures

Transportation of the MIV from Grenoble

Installation of spiral case

Installation of Mot/Gen

Feedback from Variable Speed Projects

© 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 - 13/11/2014 – P 31

Storage

benefits,

regulatory

framework &

market design

Highlight the

value of PSPs to

encourage their

development

Smart energy

networks

Grid management

in line with real

time markets

PSP upgrade to

variable speed

Unit test at

Le Cheylas, France

Our goal is to deploy variable speed PSPs across the EU and

to enhance grid management systems to improve renewable

energy management.

Conversion of

75% of the 40

GW of EU PSPs

to variable speed

Results

exploitation

© 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 - 13/11/2014 – P 32

PSP allows Renewable to remain Renewable

Customised solutions for each application

Economical feasibility highly depends on

regulatory framework

www.alstom.com