HyPower
Voith Siemens Hydro Power Generation customer magazine

May 2008

17

Hydro power country Brazil I Virtual integration speeds upsocial inclusion I Change at the top of Voith

SUMMARY

6

Figures, Faces
and Festivities
4 Change at the top

Report6 Virtual integration speeds up social
inclusion: an opportunity for Brazil’s
favelasTechnologicalleadership
16 CFD application in hydro generator
ventilation systems

Focus
Brazil24 A special 50 th birthday present:
the modernization of Furnas
26 Monitoring system complements
Peixe Angical
28 Itaipú hydro power plant: the world’s
highest annual energy production

2

16

Latin-American News
30 La Confluencia, Chile
30 Baguari, Brazil
31 Energy Forum, Guatemala
31 New Member in Brazil’s Board
Interview
32 Perfectly fit for hydro businessin the region

Projects
Canada36 Guaranteed hydraulic performance
more than fulfilled for Revelstoke’s
Unit No. 5
Turkey38 Voith Siemens Hydro equips
Turkish power plant Uzunçayir
Portugal
39 Contract award for Picote II
in Portugal
Romania
40 New Romanian subsidiary founded
Austria
41 Re-opening of Wiesberg power plant
42 Voith Siemens Hydro buys Austriansmall hydro expert Kössler
Africa44 Special training program for staff ofEthopian Electric Power Corporation
45 Hydro power is a vital sourceof electricity in Africa

52

China
46 Well positioned in China
Japan
47 Promising perspectives at Voith Fuji
Hydro’s 10 th anniversary

Events48 Close to customers
49 Conferences, seminars and symposia

Politics
50 First company-internal workshop
on hydro’s sustainability

Essay
52 Voith Foundation São Paulo supportssocial and vocational projects

Ocean Energies
56 Taking the media to the ocean
56 Contract for first tidal current
machines
57 New Head for Tidal
57 New CEO for Wavegen

News
News from the Voith Group58 Voith Turbo
59 Voith Industrial Services
59 Voith Paper

May 2008 I 17 I HyPowerEDITORIAL

Good-bye
but not
farewellDr. Hubert Lienhard,President and CEO
of Voith AG

Dear readers,With another year gone by, hydropower has progressed in both its
image and its contribution to reduce
CO2-emissions. In the foregroundof changes and opportunities alongwith global growth of economies
and increasing wealth of developing
countries, hydro power, however,still has some way to go.
The world continues the debate
on emissions from reservoirs.
There still is not enough scientific
data available to substantiate or
disprove these allegations. We haveactively contributed to the discussion. We support scientific research
to develop a predictive model which
will serve as a basis for fact-based
discussion. We are convinced, thatwithout such research the discussion will not resolve anything except
generating hot air instead of real
solutions.
We also still experience disadvantages regarding certificate trading.
Hydro power is measured by power
density – hardly a dimension thatembraces exact volume figures for
CO2-emissions.

May 2008 I 17 I HyPower

But with our industry association,
the International Hydropower Association, we are consistently following
main strategic goals. Recruiting is
one of them: having more members
means enabling the association toact strongly and consistently on
crucial political issues, like thegreenhouse gas issue for example.
So I call upon all of you – especially
if you are an owner or operator ofhydro power assets – to jump on
the bandwagon and help the development of truly sustainable hydropower. Building the platform for asustainability certification andauditing system for hydro power,
from which all partners will benefit,
is another key field for action.
And in the midst of all of this, I haveto say good-bye! Good-bye – notfarewell! As you will learn in thisissue of HyPower, I have been
appointed CEO of Voith AG. So, fromnow on, my business interests will
broaden from hydro to paper, mobility and industrial services for thisconsistently growing, profitable andstrong family-owned global enterprise.

Dr. Roland Münch, has succeededme as CEO of Voith Siemens Hydroon the 1st of April. You can beassured that he will be as passionate and a strong driver for the development of our hydro power business – especially sustainable hydro– and for the entire industry.
I will not forget hydro at all, since
I will take over the responsibility of
Chairman of the Board of Directorsof the Joint Venture Voith Siemens
Hydro and certainly always have a
special eye on this industry. It has
been my pleasure and deep satisfaction to serve this business overthe last six years and to help thefuture development of this fantastic
and largest of all renewable energies. I thank all of you and ask you
to still give me your comments andopinions at
Hubert.Lienhard@voith.com.
Good-bye and all the best to you!
Yours

3

FIGURES, FACES AND FESTIVITIES

Dr. Michael Rogowski, Dr. Hermut Kormann, Dr. Hubert Lienhard and Dr. Roland Münch (from left to right).

Change at the top
The Supervisory Board of Voith AG
has unanimously appointed
Dr. Hubert Lienhard, member of theBoard of Management of Voith AG
and CEO of Voith Siemens Hydro
Power Generation, as CEO of Voith
AG as of April 1, 2008. He succeeded Dr. Hermut Kormann who retired
from the position as President andChief Executive Officer of Voith AG,
effective March 31, 2008.
Dr. Hubert Lienhard is the Chairmanof the Board of Directors of Voith
Siemens Hydro Power Generation,
too.
The successor of Dr. Lienhard as
CEO of Voith Siemens Hydro, effective April 1, 2008, is Dr. Roland
Münch.
Personal history

Dr. Hubert Lienhard joined Voith
in November 2001, as a memberof the Board of Management.
On May 1, 2002, he became Chief
Executive Officer of Voith Siemens
Hydro. In addition he was responsible for strategic sourcing and risk
management of the entire Voith
Group.

4

Under his leadership, Voith Siemens
Hydro flourished and grew. Incoming
order volume increased from half abillion to more than 1 billion Eurosand earnings doubled.
Dr. Roland Münch joined Voith in2002 as a Member of the Board ofVoith Paper Holding, where he successfully integrated the paper technology acquisition of Jagenberg AG.
He has been responsible for theAutomation Division in Voith Paper
since October 1, 2002, and has also
served as a Member of the Management Board of Voith AG since July
2006.

Since April 2000, he guided thedevelopment of the Voith Groupas President and Chief Executive
Officer.
During his tenure as CEO of Voith
AG, Dr. Kormann has made a namefor himself primarily as a consistentand capable corporate strategist.
He was instrumental in steering
Voith, driving the Group businessfrom 1.2 billion Euros to today’s of
5 billion Euros.

A philosophic farewell gift.

Farewell ofDr. Hermut Kormann

Dr. Hermut Kormann stepped downfrom his position as President andChief Executive Officer of Voith AG
effective March 31, 2008.
His career at Voith began in 1989 as
Head of Finance and Accounting.
He was appointed Managing Director
in 1991. He became Financial Director and Controller and a member ofthe Board of Management in 1997.

May 2008 I 17 I HyPowerFIGURES, FACES AND FESTIVITIESMany political and industrial leaders, customers and business partners attended his retirement party
to celebrate and honor his many
achievements. He considers his
innovations initiative for the global
enterprise one of his most important
personal achievements. Today, thisinitiative can be noted in terms ofthe development of ocean energies,
locomotive construction and manytechnical, economic and environmental solutions within the traditional businesses of Voith. He waspraised by many, among others
by Board of Directors’ Chairman
Dr. Rogowski for being a “unique‘champion’s league-like’ leader
within Germany’s industry”, as well
as by the family representative
Angela Voith, describing his “noble
way in cultural and financial value
creation for the enterprise, pairedwith an incredible sophistication”,
as invaluable.

A special treat for music-loving
Kormann in the event was the presentation by world-famous opera
star Montserrat Caballé, her daugther and tenor Albert Montserrat.

Top management was accordingly
pleased: “We are well satisfied withfiscal 2006/07, all of Voith’s Group
Divisions experienced excellent
development.”

Voith continues to growThe momentum gained has clearly
carried over to fiscal 2007/08.
New orders were 47 per cent up
in the first three months comparedto the same period a year ago.
Demand from the industries Voith
serves are considered as strong as
ever with high levels of orders andsales expected to continue.

Strong figures from Fiscal Year
2006/07 were published in a press
conference the same week as thefestive farewell of CEO Dr. Hermut
Kormann took place. Driven bystrong global growth in the markets
for paper, energy, mobility, infrastructure and services, orders
received rose to 5.1 billion Euros
compared to the previous 4.1 billion.
Sales broke the 4 billion Eurobarrier for the first time, increasing
to 4.2 from last year’s 3.7 billion
Euros.

With a staff of 2,800 worldwide
and exceeding one billion for the
first time in 2006/07, Voith Siemens
Hydro now represents 21 per centof the orders received in the Voith
Group. 䡲

The result from ordinary businessagain rose sharply from 218 to
264 million Euros, with net income
up at 153 million Euros compared
to 134 million Euros in 2005/06.

A festive tent under Heidenheim’s castle
saw guests and Montserrat Caballé.

May 2008 I 17 I HyPower

5

REPORT

Virtual integration speeds upsocial inclusion:an opportunity for Brazil’s favelas

REPORTREPORT

Brazil is a land of contrasts. Poverty and luxury are situatedside by side. The most beautiful landscapes are mingled withgigantic cities, making it difficult to distinguish one from theother. The city of São Paulo, for example, has almost threetimes as many inhabitants as Switzerland.

In January 1542, however, theSpanish explorer, Álvaro Núñes,could not possibly have imagined
any of this. He travelled down awide and then nameless river andexperienced nothing but breathtaking natural beauty. He wassearching for a route to the cityof Assuncion, which today is thecapital of Paraguay.
On the last day of January, Núñes
first heard a soft, low rush whichgrew louder and louder. As he
traveled down the river it became adeafening and earth shaking roar.
When he finally discovered thesource of the noise – at a width ofnearly five kilometers, the river’s
tremendous volume rushed to thedepths below – he cried out, half8

terrified, half enchanted: “Mary,
Mother of God, what incredible
beauty!” Núñes was the first European to see the waterfalls of Iguaçu.
It was only due to his skill as anavigator – and a sizable amountof luck – that he in fact escaped thewake of the falling masses of water.
About four centuries later, the sightof these gigantic waterfalls prompted First Lady Eleanor Roosevelt to
exclaim: “Poor Niagara!” “Iguaçu” –“the falling waters”, translated from
Guaraní, the language of the indigenous people, are a living symbol
for what has always been associated with Brazil: stunning natural
beauty and an abundance of natural
resources. The writer Stefan Zweig
was so enthused by this that he in

his 1941 written book entitled,“Land of the Future”, said: “Whoever
is aware of how to truly experience
Brazil has seen enough beauty tolast half a lifetime”.
No other country on earth is home
to more plant and animal species
than the tropical giant Brazil.
On a single hectare of tropical rain
forest in the Amazon, approximately
500 different species of trees werecounted – in all of Europe, hardly
more than 60 exist. More fresh
water flows into the Amazon alone
than into the world’s six next-largest
rivers combined – approximately
20 per cent of the water of all rivers
on our planet flows through the
Amazon basin towards the Atlantic.

May 2008 I 17 I HyPowerREPORT

Not too far from the spot where
the Spanish explorer had onceencountered hardship, is the location of the Itaipú hydroelectric power
plant, over seven kilometers longand nearly 200 meters high.
Here, 700 cubic meters of waterfrom the retained Paraná River rush
through each of the plant’s gigantic
penstocks leading to the turbines.
With 20 generating units installed,
the bi-national hydroelectric power
plant on the border with Paraguay
is in fact the largest in Brazil, but by
no means the only one: the country

May 2008 I 17 I HyPowergenerates more than 80 per centof its electricity from hydro power
stations. An installed capacity
totaling more than 80 GW makes
Brazil’s electricity market one of theworld’s largest. With a total primaryenergy consumption twice as large
as the aggregated figures for Argentina, Bolivia, Chile, Paraguay and
Uruguay, it is definitely the biggest
in South America. The hydroelectricprevalence makes the Brazilian
generating system differ from thatof any other country in the world.

9

REPORT

Space Programand “Zero Hunger”
Brazil’s economy needs this reasonably-priced and domestic energy;
after all, the country lost its agrarian
imprint long ago. The public andprivate services sectors contributejust less than 60 per cent of thenational Gross Domestic Product;
the industrial sector including manufacturing and construction adds
up to just more than one third.
The country with the highest population in the entire Southern Hemisphere – just less than 190 million –currently, it is among the world’s
10 largest national economies.
However, its riches remain unevenly
distributed.
Along with the program “Fome Zero
(Zero Hunger)”, to fight starvationin this country, the government
maintains its own space program.
For a long time, the metropolitan
areas appeared highly attractive –especially to those inhabitants ofless-developed regions.

10

Nowadays, however, there are
hardly any opportunities forunskilled laborers, even if names
like Belo Horizonte, São Paulo, and
Rio de Janeiro still sound magical.
Brazil, a country of continental
dimensions, faces the great challenge of stimulating developmentof all its regions but at the sametime preserving and respecting theirroots and culture.

Viewing contrasts
Rio de Janeiro: many consider it
the most beautiful city in the world.
Whoever stands on the viewing platform at the famous statue of Christand looks down at the city from aheight of more than 700 meters,
may indeed agree. The gondolasof the cablecar ascend to Sugarloaf
Mountain, and beyond that is theinlet to Guanabara Bay and theendless Atlantic coastline with its
countless gently curved sandy
beaches. However, the slums –called favelas in Portuguese – arejust as much a part of Rio’s scenery.

Travelling from one neighborhoodof Ipanema to the famous districtof Barra da Tijuca, one passes by
Rocinha, the favela of Rio.
Rocinha’s main access is located at
the foot of one of the countless hills,
which separate the city’s various
districts from each other. Make shift
brick structures cover the entire
mountainside. Around 150,000
residents who belong to the lowest
socioeconomic classes live here, ina labyrinth of structures. But in the
narrow alleys and on the namelesssteep staircases, which mostly leadup the mountain in place of roads
between all the houses, the moodis lively: construction workers in
Bermuda shorts and flip-flops lug
empty paint cans, along with bricks,
up the winding staircases, children
play and run barefoot down themountainside. Women with shopping bags on each arm stand on thesteps in the middle of the staircase
and gossip. A circular saw whines,
a radio blares, chickens cluck onsome of the flat roofs.

May 2008 I 17 I HyPowerREPORT“ We create a win-win
situation for all
stakeholders andcreate a relationshipthat goes far beyond
the commercial
customer-supplier
relationship.”Jose Cavaretti,
AES Eletropaulo

And whoever shifts their gaze tothem from below sees an inextricable tangle of electrical cables running across and on top of eachother.

Electricity: the need exists
Favelas need electricity, in Rio, inSão Paulo, everywhere. There has
been some movement towards thelegalization of clandestine connections. Regulation of energy consumption is of paramount importance to guarantee social integration and a better quality of life.
In the metropolitan region of São
Paulo, AES Eletropaulo’s program
for the normalization of what iscalled informal electric power connections, officializes service andis responsible for sustainability of
use and supply in many ways.

May 2008 I 17 I HyPower

11

REPORT12

May 2008 I 17 I HyPowerREPORT

Jose Cavaretti, manager of market
recovery in AES Eletropaulo,
explains that the program is basedon setting up new grids that provide
reliable connection and power
supply. They also teach residents
about efficient and economic use.
Awareness of this goes hand inhand with new orientation on
personal budgets.

Efficient use of power
In favelas, houses are often dark
due to the very narrow streets andalleys, so the demand for lights is all
day long. To help reduce consumption, AES Eletropaulo replaces forfree common light bulbs with twocompact fluorescent bulbs and oldrefrigerators for new, higher efficiency models. Consequently, thisapproach also minimizes danger ofhazards and injuries through electric shocks and fires, and it preserves the life time of home appliances. In addition to free service
installation, the company supplies
biconcentric cables for use in new
clandestine connections, the socalled “gatos”.

May 2008 I 17 I HyPowerIn three years, this program has
already reached 200,000 families in
600 communities, benefiting morethan one million people.

Education, awareness,
paid bills
AES Eletropaulo, with the goal of
educating its electricity consumers
also on cultural and digital aspectsof life, has installed in communities’service centers and libraries computers providing free access to theinternet. Access to these centersis granted with the presentation ofa paid electric bill. In addition, there
is a federal government program
granting incentives to low-income
consumers (under 220 kW), whereby AES Eletropaulo monitors consumption and offers additional
discounts for those meeting thetarget. In some communities, evennon-registered families are granted
benefits by presenting their income
tax statement.

“These types of programs andregulations create win-win solutions
with more comfort and quality for all
stakeholders. It is a relationship that
goes far beyond the commercial
customer-supplier relationship”,
says Jose Cavaretti.

An escape from thecommunication vacuum
Availability of electric power,
remains the basic ingredient tospeed up not only social and economic integration of the low-income
families who live in the favelas.
But an at least as important isanother ingredient, one would not
directly think about: the Internet.
Largely isolated from the urban
infrastructure, the favelas are acommunication vacuum: not organized and without their own voice –people usually talk about them, butnever to them, because they areclear “no-go areas” for outsiders.
If, by some chance, news reachs
beyond the favela limits to theoutside world, it is usually not good
news. However, this picture has
started to change, since alternative
forms of communication point theway out of the communicative “dead
end”.

13

REPORT

Viva Favela!
Viva Favela (“Long live the favela!”)is the Internet portal which hasserved as a virtual bridge between
the favelas and the rest of society
in Rio since mid-2001. With its own
team of journalists and neighborhood correspondents – favela residents reporting from their own
community – this portal adjusts the
picture. The insider’s perspective,
up to this point was sorely missed.

14This new portal inspires the classic
media – newspapers, magazines,
and television. Introducing different
views of reality clearly shows that
there are topics far beyond violence
worth sharing.
In addition to reports and real-timenews, the communications platformpublishes job offers, information on
sports and cultural events, introduces and explains educational possibilities and offers health advice.

May 2008 I 17 I HyPowerREPORT

Basic knowledge on health care,a certain level of general educationand increased exposure to culture
are instruments which facilitatesocial advancement, and this makes
them important starting points insocial projects oriented towards
sustainable social change. In thiscontext, it doesn’t matter whether
the application of these instruments
is relayed to a small group in thecourse of intensive support andmonitoring – as is the approach of
the Formare project, sponsored by
the Voith Foundation (see pp. 52of this issue) – or that a project isaimed at a rather broad segment of
the population. In one case, morein-depth knowledge and skills of a
few are transferred little by little toa broader population; in the othercase, the superficial knowledge
shared by many creates opportunities and conditions for application ofthese skills. Then, via self-learning
effects, the successful applicationof these skills allows for further
extension of the basic techniques –of course, provided that the necessary basic structures are available
to initiate these processes.

May 2008 I 17 I HyPowerThe cooperative approach of cityand state, companies and NGOs,
can contribute significantly to thisprocess.
Six years ago, at the start of Viva
Favela, hardly anyone in the poor
sections of town had access to acomputer, let alone the Internet.
Viva Rio, an NGO and UNESCOsupported sponsor of the portal,
set up terminals in these communities. Already three years later,roughly 10 per cent of residents
visited the pages operated by Viva
Favela, and 12,000 visitors – evenfrom the affluent sections of town –visited the pages daily. By now, in
Rocinha alone, 80 to 100 commercial providers offer low-cost accessto the World Wide Web in so-called“LAN houses”. Some small entrepreneurs from Rocinha even maketheir living providing this service.

voice, and can break the cycleof social and economic isolation.
By using chat rooms, blogs andonline forums, the favelados doaway with the information monopoly
previously held by establishedmedia. Instead, finally, there is achannel to make local issues public
issues, to question the status quo,
to make demands, to organize
collective action. It can be said that
virtual integration precedes social
integration. 䡲

Virtual precedes social
integration
The Internet has become a platformof knowledge and communication
which also lends the favelas a

15

TECHNOLOGICAL LEADERSHIP

Works at Jocassee
generator, SC, USA.

16

May 2008 I 17 I HyPowerTECHNOLOGICAL LEADERSHIP

CFD applicationin hydro generator ventilation systems
Ventilation-cooling is one of the key technologies in the designof large electrical machines with significant influence on machinesize and performance. Avoiding peaks in temperature will protect
the machine and extend its lifetime.

General aspects

In large hydro generators experimental data are difficult to obtain.
So, a combination of a scaled model
test, network method, and threedimensional Computational Fluid
Dynamics (CFD) is applied to
improve a homogeneous distributionof air flow rates in the machine tocontrol the temperature.
In large hydro generators maximum
current density and inductivity are
limited by material behavior.

Hence the ideal power of the electrical machine scales with a typicallength scale to the 4th power (seeformula 1).
Thus energy density can be increased as the output increases
in relation to speed. On the other
hand, since electromagnetic losses
increase with the third power of atypical length scale (see formula 2),
large machines tend to have abetter efficiency (see formula 3).

The electromagnetic losses relate
to sources of heat that need to beexchanged by a coolant throughconvective processes at surfaces
corresponding with a length scalesquared. So, with larger machines,
the ratio of losses and heat sources versus the heat transferred atsurfaces increases linearly witha typical length scale L (see formula 4).

Table 1: Interaction of conventional methods to calculate the temperatures of the criticalcomponents in the machine by knowledge of the losses and air flow.

1d  BdA
 L4
Pid = I . U =  jdA .
dt

MethodField Calculation Methods

Analytical Methods
First Principles

Target2

3

 PV  L

=1-

3

 PV

Loss Calculation

Calculationof Losses



Pid
 1L

4

 PV
L3
 2 =L•Q Convection
L

May 2008 I 17 I HyPower

Calculationof Flows

Computational
Fluid Dynamics

Volume Flow Rates Using
Pressure Loss Coefficients

Calculationof Temperatures

Computational
Fluid Dynamics

Heat Source Networks using
Heat Transfer Coefficients

17

TECHNOLOGICAL LEADERSHIP

Figure 1: Solid geometry meshed
for thermal analysis.

This clearly shows the increasing
difficulties of exchanging heat andthe need to improve ventilationcooling in large machines. Since anincreased air flow rate also leads toincreased windage losses, the only
option is to improve the air flow rate
distribution to obtain more efficientventilation. The final goal is to reacha flat temperature profile in the axial
direction and limit the maximum
temperatures to increase the lifetime of the insulation and thus the
lifetime of the electrical machine.
Combination of methods

This target can be reached by doinga scaled model test with an experimental analysis of flow rates, windage losses and temperatures forvarying geometries. The obtained
design optimizations can then be
applied to the actual machine,
based on experience. However,
because of time and cost issues,
it is not possible to build a scaled
model for every project. Since only
limited details can be obtained inthese experiments, the modelexperiments can only give a basic

18

Figure 2: Fluid meshed for flow
and thermal analysis.

understanding of the flow andheat transfer processes. There arefurther challenges to maintain ahomologous design with regard togeometry, similar to Reynolds andMach numbers.
Limited measuring

In large scale machines, only
measurements of temperature at
few locations distributed over thecircumference are normally obtained. The flow rate is only measured behind the cooler and does
not provide information regarding
the distribution of air flow in themachine. Windage losses are also
only obtained for the complete
generator by a calorimetric method.
The network method has beencommonly used as an analyticaltool, both for ventilation and cooling.
In this method, equivalent flow
resistances and air flow paths forventilation analysis, and equivalent
thermal resistances and heat flow
paths for thermal analysis respectively are defined and combined
through a network.

Network method

Since the flow network is basedon internal flow pressure drops
from experiments with a flow resistance that is sufficiently high, theReynolds number is only dependent
on geometry. These resistances
are taken from handbooks like
Idelchick, but are limited for internal
flow configurations and cannot be
used to describe vortex structures,
i. e. in the inlet of the hub and in therecirculation zone. In addition, themethod limits the thermal transfer
model to exchange heat on experimental geometries with a preferred
direction of air flow, which is not thecase at the end winding. This flow
also cannot be modeled by aninternal flow pressure drop formulation. Due to the complex geometries
and flow field, this method is only
a crude estimate of the situation in
the electrical machine. The resultsof the network method can only becalibrated to the integral measurements as described earlier.

May 2008 I 17 I HyPowerTECHNOLOGICAL LEADERSHIP

Figure 3: Prescription of homogeneous
losses on four different parts of the stator
winding.

Mixing CFD...

CFD can bridge the gap to apply
experience to obtain new designs,
since it is based on first principles,the underlying physical equations,describing the conservation ofmass, momentum and energy. It isan effective tool for design optimization, but since the equations arealso solved on some kind of discretization to a finite number of nodes,
and some equations need to beclosed by models, it is of highest
importance to compare the resultswith the conventional methods.
These are experiment and network
calculation. Fundamentally, it ispossible to apply CFD to a changed
geometry.
…with conventional

Table 1 shows the interaction of
conventional methods to calculate
the temperatures of the criticalcomponents in the machine byknowledge of the losses and air
flow. Here, CFD is also applied todetailed geometries, where its
results are incorporated into the

May 2008 I 17 I HyPower

analytical flow and thermal networks, to improve the flow resistances and heat transfer coefficientassumptions. With the applicationof CFD one follows a more universal
approach based on physical principles of conservation of mass,
momentum and energy. Uncertainty
of modeling is shifted from theextrapolation of detail models tocomplex geometries and to the
choice of grid resolution and closure
models. This uncertainty can only
be minimized if the CFD methods
are applied to an experimental
setup that is investigated in detailand compared to the numericallyobtained results. The accuracy of
the universal approach to estimate
flow rates, temperatures and windage losses by CFD is confirmed
through the scale model test. Thisknowledge is then used to predictflow and thermal properties andlosses on large scale geometries.
Figure 1 shows the meshed solid
geometry. On these nodes the heat
conduction with sources from theelectromagnetic losses is solved.
This resolution of the grid is lessrestrictive than the one for the fluid
as shown in Figure 2. Special effort
is taken to model the boundary
layers, so that the wall functions forthe turbulent velocity and temperature boundary layer can be appliedcorrectly. Hence the fluid mesh islarger in node number by a factorof two. Since heat sources are notdistributed equally on the solid

components, one defines regions
on stator and rotor components
where a mean loss is specified(as shown by the different colors
in Figure 3).
Brazilian Corumbá IV project

At Voith Siemens Hydro, CFD
analysis with its pre-processing,solution and post-processing steps
and the application of necessary
simplifications is part of the standard engineering practices. These
were, among others, applied in
the 68 MVA, 200 rpm, 13.8 kVhydro generator engineering for theCorumbá IV hydro power plant operated since early 2006. These generators were originally designedwith traditional analytical tools andimproved over time through measurements in a series of machines,
and through laboratory tests.
In the case of the generator forCorumbá IV, the so called radialradial system – also known as RIMVentilation – using the rotor spider
and rim to drive the air, was selected as the most suitable ventilation
system.
Analytical ventilation
calculation

The applied tool uses a net modelwith parallel and series branches.
Each branch is composed of an
aerodynamic resistance or a pressure increment.

19

TECHNOLOGICAL LEADERSHIP

Flow Convergence300

In numerical methods, conservation
equations are applied in their differential form. These equations arecomplex and not linear. Solutions
to these equations system areiterative; the solution is obtained bya loop process.

275
250
225
200
175
150
125
100
75
50
25
0
25.0 27.5 30.0 32.5 35.0 37.5 40.0 42.5
Total Flow [m3/s]

Figure 4: Convergence of flow.

Data are obtained for the geometries of the main components,
machine speed, cooling air density,and some coefficients through tests.
After the analysis, geometry data
are modified, to meet the air flow
requirements for the basic design,considering the distribution of thelosses in the machine and theboundary conditions given by theelectromagnetic and mechanicaldesign.

Figure 5: Velocity vectors in the plant.

20

Numerical simulationand simplified geometry

The most frequently applied technique in CFD for the determinationof heat transfer is the applicationof discretization methods with thehelp of Navier-Stokes equations
for approximated results in discrete
points of the considered simulation
domain.

For Corumbá IV, the consideredgeometry was the volume throughwhich the cooling air of the machineflows. By using the existing cyclic
symmetry it was possible to reduce
the geometry to one sixth of thecomplete machine model. Geometryof the pole winding was smoothed,the stator frame columns were
eliminated and volumes, corresponding to the end windings
and circuit rings, were simplified.
In addition, stator core and cooler
were assumed to be porous solid,
to avoid discretization of such small
volumes inside these domains.
For the stator core, parameters forthis simplification were obtained inprevious studies. For coolers, datafrom the supplier were used.

Figure 6: Velocity vectors in the section.

May 2008 I 17 I HyPowerTECHNOLOGICAL LEADERSHIP

Domains

The path in which the cooling air
flows was divided into distinct
domains connected by common
and identical surfaces:䡲 Hub: rotational domain(with 200 rpm).
䡲 Rim: rotational domain(with 200 rpm).
䡲 Poles: rotational domain(with 200 rpm).
The connection to the stator coreis done by a cylindrical and hypothetical surface which divides theradial dimension of the air gap in
the two halves.
䡲 Upper and lower air guides:
static domain.
䡲 Stator core: static domain withproperties of porous material.
䡲 Stator frame: static domain.
䡲 Cooler: static domain withproperties of porous material.
䡲 Housing: static domain.
In this domain, the existenceof the upper coils’ ends and thecircuit ring is considered as simplified geometries that disturb
the air flow.

Figure 7: Velocity vectors without recirculation.

May 2008 I 17 I HyPower

Discretization mesh

Numerical solution

and boundary conditions

and results

The domains were discretized bymeshes of generated tetrahedral
elements in the CFX-Mesh software. The mesh used in the mostdetailed analyses for this project
has about 1.8 million elements
and 400,000 nodes. As a boundary
condition, it is assumed that theconnections between the different
domains are perfect and there is
no leak. But mandatory direction
for the flow in these boundaries is
not fixed; it is a result of numericalcalculation. The second boundary
condition treats the constant angular velocity of the rotational domains(volume inner to hub, volume inner
to rim and volume of air between
poles) linked with the speed of themachine, i. e. 200 rpm.

Figure 4 shows the air flow in thecoolers versus the number of iterations. After 300 iterations the resultof air flow in the cooler converged.
Figures 5 and 6 show, respectively,
the velocity vectors in the cooling
path in the plant and in the main
section views. The flow in the coolers resultant of first analysis, where
the air recirculation due the gap
between the rotational and static
air guides was not considered, is
44 m3/s. The velocity vectors of thisresult can be verified in Figure 7.
Considering the existing gap
between the rotational and static
air guides, the flow in the coolers
is 42.4 m3/s. The consequent air
recirculation can be observed in
the velocity vectors of Figure 8.

Figure 8: Velocity vectors with recirculation.

21

TECHNOLOGICAL LEADERSHIP

Figure 9: Pressure gradient in plant.

Figures 9 and 10 show the pressure
gradient in the refrigeration circuit.
Figures 11 and 12 show the streamlines of the refrigeration circuit.
Recirculation inside the rotor hub
and in the housing can be identified.
Measurements in Corumbá IV
and results comparison

Values of the air flow in the cooler
to be compared are as follows:䡲 Average measured air flow inthe coolers on the real machine:
33.6 m3/s
䡲 Air flow in the coolers fromthe analytical calculation:
37 m3/s䡲 Air flow in the coolers from thenumerical simulation (CFD):
42.4 m3/s

Figure 10: Pressure gradient in section.

Table 2 presents the measured air
flow in m3/s.
The differences in the results
obtained can be assigned to thefact that the calculated models do
not have all the air recirculation
circuits passing through the coolers.
In the real machine, these circuits
are originated by the gaps in theventilation system. In the analytical
calculation, the recirculation fromthe gaps between the rotational andstatic air guides as well as the gaps
between their segments are considered. In the numerical simulation,
only the gap between the rotationaland static air guides was considered. The accuracy of the numericalsimulation also depends on the levelof detailing and discretization.

So, the differences between the
numerical simulation and themeasurements taken from the realmachine can also be reduced byfurther detailing the geometry of
the pole winding and an improvement of the discretization in theregion of the ventilation channels
in the rotor rim.
The values of the stator heating are
the average of readings from theresistance temperature detectors
placed between the top and bottom
bars in the stator slots. The fieldheating was obtained from thevariation of the resistances of thepoles winding. The contractual limits
for temperature rise of windings
were 85 K for the stator winding
and 90 K for the field winding.

Table 2 – Measurements in Corumbá IV
Machine

22

n° 1

n° 2

n° 3

Cooler
n° 4

n° 5

n° 6

Total ofmachineFinalaverage

1

5.49

5.53

5.57

5.62

5.64

5.62

33.5

33.6

2

5.66

5.51

5.64

5.62

5.66

5.53

33.6

May 2008 I 17 I HyPowerTECHNOLOGICAL LEADERSHIP

Figure 11: Stream lines (3D view).

Figure 12: Stream lines (side view).

As shown in Table 3, the values
measured during commissioning
as well as the extrapolation tooperation under rated conditions
are significantly lower than thecontractual guaranteed limits.
Conclusions

CFD is a valuable addition to the
network method for the design
optimization of electrical machines.
It can even be used as a standalone tool to compute flow, heattransfer, temperatures and evenwindage losses. Furthermore,
results of this method are used to
improve assumptions in the much
faster network model, so that thesemethods supplement each other.
The Corumbá IV approach showedthat the application of CFD simulations in the ventilation system ofhydro generators is advantageous
for the development of new ventilation technologies and the verification of cooling systems in hydrogenerators.

Authors
Claudinei de Moura Altea
Development Engineer,São Paulo, Brazil

Claudinei.Altea@vs-hydro.com
Antônio Carlos Meyer
Project Manager,São Paulo, Brazil

Antonio.Meyer@vs-hydro.com
Thomas Hildinger
Head of Generator Engineering& Structural Mechanics,
Heidenheim, Germany
Thomas.Hildinger@vs-hydro.com

A Analytical calculation values during
the design phase.
B Values measured during commissioning.
C CFD predicted values simulating thecommissioning conditions.
D Values expected by operation with rated
conditions and the measured air flow.

Table 3 – Temperature data of Corumbá IV
Case

Current in stator [A]Current in field [A]Stator winding heating [K]Field winding heating [K]Air flow in the coolers [m3/s]

A

2845

1132

71

42

37

B

2640

1146

61

43

33.6

C

2640

1146

60

44

33.6

D

2845

1132

74

43

33.6

May 2008 I 17 I HyPower23

BRAZIL

A special 50 th birthday present:
the modernization of Furnas
50 years ago, in the middle of the Brazilian “economic miracle”
era, the then President, Juscelino Kubitschek, faced increasing
urbanization and energy demand. He intended the country togrow 50 years in the time of five and announced the plan to build
the world’s largest hydro power plant: Furnas. With an installedcapacity of 1,216 MW, it was beyond the then state-of-the-art
engineering.

The hydro power plant was built
by a new state-owned company of
the same name, Furnas Centrais
Elétricas S.A., which was createdin February 1957; it is now one ofBrazil’s largest utilities.
50 years after President Kubitschek
left office, current President Luiz
Inácio Lula da Silva is busy with thesame topic of fostering growth.

24

In the beginning of 2007 he announced a Program for the Acceleration of Growth (PAC) in order toraise the country’s gross domestic
product by five per cent annually.
235 billion U.S. dollars of both thefederal government and the private
sector will be invested in projectsof national interest such as building
and repairing highways, airports
and ports, providing housing and

May 2008 I 17 I HyPowerBRAZIL

other infrastructure for Brazil’s
poor and boosting energy development and investing in the environment. Furnas contributes to PAC
with large projects in the segmentof hydro power generation, e. g.
the Estreito hydro power plantunder the consortium leadership
Voith Siemens Hydro Brazil.
Around 40 per cent of Brazil’s
consumed energy runs throughthe Furnas system

During its 43 years of operation,
Furnas became one of the majorhydroelectric power plants in Latin
America. Since the plant began
operation in 1964, it more thandoubled Brazil’s installed capacityfrom three to eight million kW andaccounted for one third of the total
consumed electricity. Now, Brazil’s
oldest giant in terms of hydro power
was due for modernization.

And a consortium under the lead ofVoith Siemens Hydro Brazil won themodernization contract.
Voith Siemens Hydro has an
office on-site

There is much to do: The upgrade
and automation of six generating
units, supply of components for thesubstation and the respective automation, replacement of the complete mechanical and electricalancillary equipment, construction of
new control rooms plus a centralized control room, – that means
approximately 70 per cent of theplant’s ancillary equipment will be
replaced by 2010. Therefore, Voith
Siemens Hydro established an
office on-site with ten employees
who moved from São Paulo to theneighboring cities in order to supervise the disassembly, erection andcommissioning of this project.

Fast forward modernization

Already a year ago, the first modernized unit re-entered commercial
operation. The next unit to be overhauled is well underway. Within thenext three years, a total of six
machines will follow piece by piecewith a special challenge. As theFurnas power plant is under commercial operation, only one unit ata time can be shut down for modernization. And the work on thedisassembled units must not interfere with the operation of the othergenerating units.
Originally, Furnas was equippedwith six Francis turbines. Two additional units followed after ten yearsof operation. They will not be modernized as part of this project, butwill be equipped with the new automation system, too.

Further information
Furnas and Voith Siemens Hydro haveenjoyed a long partnership since 1965.
Furnas Centrais Elétricas operates
15 hydro power plants, and Voith Siemens
Hydro contributed electromechanicalequipment to 12 of them, such as
Funil (1967), Mascarenhas de Moraes/
Peixoto (1970), Marimbondo (1971),
Corumbá (2002) and Serra do Facão
(ongoing) to name but a few.

Author
Edison Palma
Project Manager,São Paulo, Brazil

Edison.Palma@vs-hydro.com

May 2008 I 17 I HyPower25

BRAZIL

Monitoring systemcomplements Peixe AngicalInaugurated in November 2006, the Peixe Angical hydropower plant is incorporating what is developed in the
Corporate Technology Centre Brunnenmühle of Voith
Siemens Hydro in Germany and accessible to all operating
units worldwide. The plant, equipped with three Kaplan
runners with an installed capacity of 452 MW, will havea monitoring system provided by Voith Siemens Hydro.

26

May 2008 I 17 I HyPowerBRAZIL

Owner Enerpeixe S.A. selected
Voith Siemens Hydro‘s monitoring
solution. The units are similar tothe one running in Lajeado, a hydropower plant some 300 km further
north on Tocantins River. “We arevery happy to work with the same
partners again”, said Lino Ossami
Yassuda of Enerpeixe S.A.: “Hydro
power plants have a very long life
cycle, so reliability of the chosen
system and the offered service areof utmost importance. Therefore,
we practically implement the entire
Voith Siemens Hydro system.
So we will be able to monitor every
unit online, from everywhere in
the world”.
The new monitoring system will
guarantee more safety for the operation of Peixe Angical’s power
generation units: vibration instabilities can be detected, the machine’s
behavior can be analyzed, and – ifneeded – appropriate safety alarms
activated.

The equipment is based on major
modules of the HyCon Optimization
and Diagnosis Toolbox, which is apart of the HyCon automation product family.
The system is composed of multichannel acquisition units for eachof the three machine sets.
Monitoring, data acquisition andanalysis is performed
䡲 for all mechanical vibrationsof the shaft, the bearings andmajor stationary parts,
䡲 for radial and tangential vibrationof the generator end windings,
䡲 for the air gap between thegenerator rotor and stator,
䡲 for partial discharge at threephases,䡲 for the clearance between
the four runner blades andthe discharge ring.

Installed on the Tocantins Riverbetween the counties of Peixe andSão Salvador do Tocantins, thewater runs through Peixe Angical’sturbines at 880 cubic meters per
second.
With this, the hydro power plant
contributes 2,374 GWh per year to
the Brazilian electric grid – enoughelectricity for four million people.
A similar monitoring and analyzing
system from Voith Siemens Hydrois already in operation in all of
the eight Francis turbines at
Omkareshwar, India.
Authors
Dr. Marcelo Bergweiler
Engineer,São Paulo, Brazil

Marcelo.Bergweiler@vs-hydro.com
Gerson Maron
Sales Engineer,São Paulo, Brazil

Gerson.Maron@vs-hydro.com

May 2008 I 17 I HyPower27

BRAZIL

Itaipú hydro power plant:
the world’s highest annual energy production
Itaipú hydro power plant, located on the Paraná River at
the Brazil-Paraguay border, began operation on May 5, 1984
when the first of the 18 initially planned generation units
was synchronized.

The 18th unit was commissioned
seven years later. In 1991,
Itaipú’s installed capacity totalled
12,600 MW. The last two of themeanwhile installed 20 units, started operation in September 2006
and March 2007, raising the capacity to 14,000 MW. Voith Siemens
Hydro supplied more than 50 per
cent of the equipment.
In 2000, the plant produced agenerating record of 93,400 GWh,
supplying 95 per cent of the electricenergy consumed in Paraguay and20 per cent of Brazil‘s consumed
energy.

28

Although the Chinese Three Gorges
project on the Yangtze will surpass
Itaipú in terms of total installedcapacity when fully erected in 2009,
the South American power station
will remain unrivaled in its annual
energy production. With 20 machines in operation and favorablehydrological conditions due to thesteady flow of the Paraná comparedto the Yangtze, Itaipú is expected
to reach an annual output of over
95,000 GWh, compared to a currently estimated 84,000 GWh for
Three Gorges. A treaty between
Brazil, Paraguay and Argentina
limits the maximum number of generating units allowed to operate
simultaneously to 18. Nevertheless,this allows for 18 generation units
to remain running all the time, while
two are off line for maintenance.

AuthorRenata Presta
Communication Coordinator,
São Paulo, Brazil

Renata.Presta@vs-hydro.com

May 2008 I 17 I HyPowerBRAZIL

May 2008 I 17 I HyPower

29

LATIN-AMERICAN NEWS

Baguari
BrazilVoith Siemens Hydro Brazil’s

New 140 MW Baguari hydrohydro power plant in Chile

power plant on the Doce River

to be operational in 2010

in the state of Minas Gerais

La Confluencia will be built on the
Tinguiririca River, around 210 km
south-eastern of Chile’s capital
Santiago. The 38.4 million Euros
contract includes the supply of two
81.6 MW Francis turbines andgenerators with a nominal rated
output of 95.6 MVA, sphericalvalves, automation, mechanicaland electrical balance of plant
equipment and other electromechanical auxiliaries. In addition, thesubstation, the assembly and thesupervision of the commissioning
are included.

A consortium, formed by Neoenergia, Furnas and Cemig, will invest
a total of 360.4 million Euros in the
new Baguari hydro power plant,
planned to operate at the end of
April 2010. The project will benefit
more than 500,000 inhabitants,
generating around 1,200 jobs inthe region.

© Osvaldo Afonso/Secom MG.

La Confluencia
Chile“This new project in Chile from theBrazilian workshop is very importantfor us as Chile’s main energy
source is hydro power. Hydro power
generates 52 per cent comparedto 48 per cent from imported coal,gas and oil. And the country plans
to invest even more within the next
few years”, said Nilo Faria, La Confluencia’s project manager. 䡲

30Voith Siemens Hydro supplies four
complete 35 MW bulb turbines withrunner diameters of 5.1 meters, thegenerators, control valves, SCADA
automation, and the excitation
system.
The customer is committed to an
extensive environmental program.
According to the Consortium’s
Environmental Coordinator Ricardo
Márcio, this will include a total
investment of 15.6 million Euros
and will see reduced reservoir size
through the application of bulb
turbines. 䡲May 2008 I 17 I HyPowerLATIN-AMERICAN NEWS

Energy Forum
Guatemala

New Member
in Brazil’s Board

Fresh wind for renewables

Dieter Hopf starts out

in Guatemalain São Paulo

Carmen Urizar Hernández
and Dr. Peter Wengefeld.

Dieter Hopf.

During their last visit to Germany,
Voith Siemens Hydro had thechance to discuss options of renewable energies in Guatemala with
the Minister of Energy and Mines
Carmen Urizar Hernández andCarlos Colon Bickford, President of
the Comision Nacional de Energía
Eléctrica (CNEE). In 1996, CNEE
was created by General Electric
Law in order to regulate and supervise the power sector.

Within the re-assignment of responsibilities in the Management Boardof the Brazilian Voith Siemens
Hydro Operating Unit, Dieter Hopf,
currently the Head of Sales in Voith
Siemens Hydro St. Pölten, is goingto São Paulo to become memberof the Management Board of Voith
Siemens Hydro Power Generation
Ltda. responsible for Sales for Brazil
and all Latin America.

In March 2007, the Guatemaltecan
government reformed local energy
law. The most important changes
were the lowering of barriers forentering the market and of theminimum requirements for energy
producers. This also gives smaller
projects, like most renewable energy projects, a new opportunity to
be realized quickly. 䡲

May 2008 I 17 I HyPower“The Brazilian Operating Unit has
been strongly committed to themarket for 44 years and maintains
its leadership position with a numberof pioneering projects. Our challenge
is to further continue to be the ideal
partner for our clients”, said Dieter
Hopf looking forward to his new
assignment. 䡲

31

INTERVIEW

Perfectly fit for hydro businessin the region
Interview with Osvaldo San Martin, President and CEO
of Voith Siemens Hydro Power Generation, São Paulo

Osvaldo San Martin,
President and CEO
of Voith Siemens Hydro
Power Generation, São Paulo

Mr. San Martin, why is it important to have a close relation-

Osvaldo.Sanmartin@vs-hydro.com

ship to all these markets fromthe point of view of a São

tive; and this can only be done if weare close to them. We need to learn
from our customers and not assume
what they want or value.

Paulo based location?

Of course, there is much potential
in this region, with small, medium
and large projects being carried out
in almost all of these countries.

Location Info
Voith Siemens Hydro in São Paulo is not
only a major operating unit of Voith
Siemens Hydro Power Generation. It also
has the largest workshop within the global
group with the full range of mechanicaland electrical manufacturing facilities.
It has supported Voith Siemens Hydro’s
closeness to not only the Brazilian market,
but also to other markets in Latin America
and has made a clear footprint in thesecountries through its activities. Regional
offices can be found in Chile, Costa Rica,
Venezuela and Mexico.

32

San Martin: It is simply because
they are very important markets forhydro power. We have large projects
in Chile, Guatemala,“Our businessCosta Rica, Ecuador,
How do you measureapproachisstrongly
the Dominican Republic,
this in terms of
related to value business figures?
Peru and others. So,
creation
we have to be locallyfor operators.”present in these markets
San Martin: In the past
for our customers andfiscal year, our ordertheir respective needs. We havevolume share from Latin America
pursued projects and customer
was 25 per cent of our total orderrelationships in these markets withintake. Besides the currently highgreat success.
volume in Brazil and orders forinternational projects, this is an
These markets are unique andimpressive share. Our goal to stay
diversified at the same time, so weas the preferred supplier for cuswant to be sure that specific customers in this region continues totomer needs in each market are met develop.
by the desired solutions. And – ofcourse – with this closeness we are
Does that mean that the namefollowing the Voith corporate phiof Voith Siemens Hydro is welllosophy to be close to its customknown in the Latin Americaners, be the preferred supplier andmarkets?
build and maintain long term relationships with highly engineered
San Martin: Yes, our brand is very
products, best-in-class services,
strong. We must not forget thatand offering absolute reliability.
before the joint venture, Voith Hydro
and Siemens hydro generators had
Our policy is to find the right solusold equipment separately to thesetions from our customers’ perspecmarkets for many years with great

May 2008 I 17 I HyPowerINTERVIEW

success. We have – as a joint venture – gained respect and acknowledgement from our customers.
Since the joint venture in 2000, we
have consolidated our brand by
developing our scope into a complete solutions and total plant provider, which benefits our customers.

We want to grow far above thecurrent 25 per cent share from Latin
America in our overall businessvolume.
How would you compare theLatin American markets with
the Brazilian market?

Why do you think has thisSan Martin: These are very different

worked out so well?

markets, all of them unique andvery specific at the same time.
Doing projects in Central America
is completely different from doing
business in South America or Brazil.
This starts with legal framework
such as national legislation, andgoes on with different corporate
cultures in customer organizations
through different technologicalaspects of customers. All this has tobe understood and complied withina strictly customer-oriented way.
In many cases, financing structureswith diverse risk profiles prevail.

San Martin: Very easily said:

We have a clear idea of how to
be different and unique, making
significant contributions and adding
value to our customers’ business.
This sounds simple, but it is a highly
demanding approach from which
we work day by day. Also, we haveoffered reliable support in thisregion for more than 40 years,
sustaining business through good
and tough times. And we offer morereliability also through our sustainedengineering and manufacturing
skills. Our processes we consider
to be best-in-class from engineeringto commissioning, and operationand maintenance of existing plants.
What is your expectation for
the future of this business?
San Martin: Our volume expectation

for these markets will certainly
continue to grow.

May 2008 I 17 I HyPower

What is your specificapproach?
San Martin: Our customers arevery demanding – they want superior value and quality, highly customized products and services,
short delivery times and flawless
life cycle services. Our operation
has to be fully prepared to respondto these demands.

Our strategic approach is to takeon a greater role in the value chain
and this begins by a keen understanding of how to add value forboth existing and potential customers. Then we must translate that
insight into strategies and actions
to deliver that value through ourdesigns, marketing, production,and unique services.
Our business and sales approachis – and this is true for the global
Voith Siemens Hydro organization –strongly related to value creationfor owners and operators of hydropower plants, the search for solutions and opportunities, and thedevelopment of strategies.
This allows us to adopt solutionsin terms of technology and commercial conditions within a project’s
complete lifecycle. Under this lifecycle view we want to perfectly
understand the very specific priorities and needs of customers long
before the submission of a businesssolution.
Engineered reliability is our credo
and this means, among otherthings, to provide top quality products, services and solutions.
Quality assurance is everyone’s job
in our organization. Improvements
in quality lead to improvements
throughout the organization.

33

INTERVIEW

May 2008 I 17 I HyPowerINTERVIEW

Are there any main barriers
to overcome in the region inorder to become so successful: languages, geography,
laws, currency, and foreign
politics?
San Martin: I would say that these

are no barriers. There are differences to be understood, respected
and eventually overcome. All in all,
we are all citizens of a big America.
Our similarities greatly exceed ourdifferences. Today, we obviously
have some specific problems related to the business environment,such as currency exchange rates
and volatility, but everybody else
doing business in Latin America
must also face this challenge.
Again, local presence is of crucial
importance. Opening regional offices in Chile, Colombia, Costa Rica
and Mexico is crucial in linking
these markets and our company.
Switching the subject completely: Is hydroelectric power

Ecuador, and Chile, strongly
address new hydroelectric projects
in their countries. We must notforget that, for countries like Argentina and Chile for example, dependency on gas is a very serious issue.
This dependency can only be mitigated if the power mix is changed,
and this change is being addressedand discussed in the governmental
spheres of these countries.
For example in Chile, data published by governmental agencies
makes us expect hydroelectric
power stations to contribute almost
60 per cent of the power generation
projects in the next 10 years.
This is an impressive figure for thiscountry. We are talking around
10,000 MW between 2007 and2018. This is an indication of radical
change. And such change isrequired to overcome the development over the last several decades,
when natural gas was the fuelprimarily meeting growth in energy
demand in the country.

the power source for the future.
Some countries are changing theirlegislation to accelerate hydroelectric power plant construction.
What is Voith Siemens Hydro’s
credo for their activity in thesecountries?
San Martin: Our presence in thesecountries transports our leadingedge technology and expertise in
the supply of complete solutions
for the whole hydroelectric sector.
Our experience in the region is
unique. We are executing largejobs in Peru (Callahuanca andEl Platanal), Ecuador (Baba, Mazar,
Angamarca), Venezuela (Guri),
Costa Rica (Pocosol), Guatemala(Xacbal), Mexico (El Gallo andChilatán), Chile (La Confluencia)
and many others.
I would say that today we are
perfectly fit to develop any typeof project in this region.

generation already seen as analternative energy resource,

Does this apply for the whole

in a region where thermalof Latin America?

generation still prevails?
San Martin: Yes, the same trend
San Martin: Certainly, hydroelectric

power generation is a popularsubject. Today, we can see countries such as Argentina, Peru,

May 2008 I 17 I HyPower

can be seen everywhere in SouthAmerica, where hydroelectric generation is discussed more and morein public media, featuring hydro as

AuthorBarbara Fischer-Aupperle
Head of Communications,
Heidenheim, Germany

Barbara.Fischer-Aupperle@vs-hydro.com

35

CANADA

Guaranteed hydraulic performance
more than fulfilled for Revelstoke’s Unit No.5
Two model tests for the Canadian hydro power station have beenvery successful for Voith Siemens Hydro. The first one took place
at Voith Siemens Hydro’s hydraulic research laboratory Brunnenmühle in Heidenheim. Its results now have been independently
confirmed by the hydraulic laboratory of the Swiss École
Polytechnique Fédérale de Lausanne.

In both tests, the hydraulic performance of the turbine model reachedand even exceeded the specifications and guarantees in all aspects.
Therefore, Voith Siemens Hydro got
the authorization to proceed withthe second stage of the Revelstoke
contract, which includes design,
supply and installation.

Mary Hemmingsen of BC Hydro during her visitof the Brunnenmühle test laboratory.

36

Last summer, representatives fromthe owner-operator, BC Hydro,
stayed in Heidenheim for two weeks
to attend the first model acceptancetests. In their own words, they saw“impressive achievements”.

The Revelstoke model runnerin the test rig.

May 2008 I 17 I HyPower

CANADAAs the unit has to be integrated in
the existing structures of the powerhouse, design of the turbine andgenerator held some challenges.
Just to give an example: the draft
tube diffuser of the unit had been
built in the 1980s, when the plant
was commissioned. Thus, certain
main dimensions and hydraulicboundary conditions for the turbine
design were heavily constrainedor even fixed by existing structures.
Moreover, the existing powerhouse crane is only able to lift up
to 1,000 tons which sets a weight
limit to the turbine and generator.
The impressive diameters of thesecomponents are 7.1 meters (turbine) and 13.9 meters (generator
stator core diameter), respectively.
After the tests in Heidenheim, theÉcole Polytechnique Fédérale deLausanne in Switzerland, which
maintains one of the rare indepen-

May 2008 I 17 I HyPowerdent testing laboratories forhydraulic machines in the world,cross-checked the test results
Voith Siemens Hydro produced in
its facilities. The successful result:
BC Hydro asked Voith Siemens
Hydro to proceed.

Project Info

BC Hydro is studying the option
to add yet another Francis unit
for Revelstoke and two additional
units for Mica, a plant approximately
100 kilometers further north, inorder to meet the growing demandin Canada’s Western Province ofBritish Columbia.

AuthorVoith Siemens Hydro Montreal was awarded
a contract by BC Hydro for supplying a new
512 MW-Francis turbine and a 532 MVAgenerator for Unit No. 5 for Revelstoke in
October 2006. Its commissioning is targeted
for October 2010. The contract value is
48 million Euros.

Pierre Séguin
Head of Marketing,Montreal, Canada

Pierre.Seguin@vs-hydro.com

Revelstoke hydro power station has
an installed capacity of 1,840 MWwith provisions for an ultimate
capacity of around 2,864 MW.
To date, the powerhouse has fourlarge generating units in service
since 1984. Each unit has a capacity of 460 MW.

37

TURKEY

Voith Siemens Hydro
equips Turkish power plant Uzunçayir
Voith Siemens Hydro will deliver the complete electromechanical equipment for Uzunçayir, a Turkish hydro power plant
located in the East of Anatolia in the Euphrates’ upper basin.
The contract will be completed in a consortium consisting ofVoith Siemens Hydro St. Pölten, Voith Siemens Hydro Turkey
and Siemens Sanayi ve Ticaret A.Ş.

The existing dam and the powerhouse were built by the national
utility DSI. According to the newTurkish energy law the Independent
Power Producer (IPP) Limak İnşaat
Sanayi ve Ticaret A.Ş. acquired
these civil structures together withthe power generation license in a
public auction. The major challenge
was to meet the customers’ expectations of a capacity increase of themachines without modifying the civil
structures.

Voith Siemens Hydro is supplying
three Francis units of max. 32 MW
and the associated electromechanical equipment for the existing powerhouse. Originally, it was constructedto house three turbines with a unit
capacity of 24 MW.
This contract is the fifth within thelast 24 months from a Turkish IPP
investor within the large hydro segment for Voith Siemens Hydro.

AuthorDr. Artur Pfeiffer
General Manager,
Ankara, Turkey

Artur.Pfeiffer@vs-hydro.com

The construction site of Uzunçayir hydropower plant on the Munzur River in Turkey.

38

May 2008 I 17 I HyPower

PORTUGAL

Contract award
for Picote II in Portugal
Voith Siemens Hydro, together with its Portuguese consortium
partner Siemens S.A., will deliver the complete electromechanicalequipment for the Picote II hydro power plant.

The 56 million Euro contract covers
the supply of a 248 MW Francis
turbine, 273 MVA-generator, andrelated electrical equipment including the excitation system, automation and balance of plant equipment. Portuguese utility Energias
de Portugal (EDP) is the owner andoperator of the plant. “After theaward of Venda Nova II pumped
storage power plant in 2000, EDP
again entrusts Voith Siemens Hydrowith the award of Picote II”, said
the Management of Voith Siemens
Hydro Kraftwerkstechnik Heidenheim, on the occasion of the signingceremony.

May 2008 I 17 I HyPower

Picote II will be built on the DouroRiver, which runs through northwestern Spain and the northern
Portugal and, after its 900 kilometerlong journey, flows into the Atlantic
Ocean near Porto. It is part of anational plan that is designed tohelp Portugal to intensely build up
its generation capacities fromrenewable sources. This plan
includes the expansion of windenergy by 2,000 MW through 2020.
In order to stabilize the grid dueto the intermittent nature of wind
power, the same amount of newhydro and additions of capacity
through rehabilitation of existinghydro power plants will be built inparallel. The main focus of thishydro development lies on storage
plants such as Picote I and II, butalso on pumped storage power
plants that store huge volumes ofenergy in their upper reservoirs.

Picote II will be built in a cavern,
125 meters into the mountain, andis the first hydro plant to be built
within the new national energy plan.
After its commissioning in fall of2011 it will increase Picote’s total
capacity by 125 per cent.

AuthorJörg-Peter Albrecht
Head of Sales,
Heidenheim, Germany

Joerg-Peter.Albrecht@vs-hydro.com

39

ROMANIA

New Romaniansubsidiary founded
Romania plays an increasingly important role for St. Pölten’shydro power activities in Eastern Europe. Therefore, Voith
Siemens Hydro St. Pölten established a new subsidiary in
Bucharest at the end of 2007. The new branch can rely on morethan 100 years of market experience as St. Pölten works in
Romania since 1898.

Achieving important milestones,
2007 was a pivotal year for the plan
to increase the Romanian presenceof Voith Siemens Hydro. In January,
the rehabilitation contract for the
Lotru-Ciunget hydro power plant
was signed. With an installedcapacity of 510 MW, Lotru is oneof the country’s largest hydro power
plants and plays a key role indomestic energy generation.
It contributes 1,150 GWh per year
to the local grid. As it can be operated in generator mode as well as
in compensator mode, it contributes
significantly to the grid’s stability,
too.

40

The original units were built in the
1970s, and the machines were due
for modernization decided Hidroelectrica S.A. and awarded Voith
Siemens Hydro St. Pölten a contract
worth 77.8 million Euros.
In May, the start of the main erection phase of Ipotesti hydro power
plant on the Lower Olt River near
Slatina was celebrated. Ipotesti ispart of Hidroelectrica’s refurbishment scheme for all hydro mechanical equipment in each of the fivehydro power plants on the Lower Olt
downstream of Slatina. The project
scope includes a total of 20 machines to be commissioned by
September 2010.

“Romania is a hydro power country
with an installed capacity of 6,350
MW. Many plants are 40 years old
or older. Therefore, Romania has aconsiderable potential for modernization, services and automation”,
said Dr. Gerhard Blaschitz, Managing Director of Voith Siemens
Hydro St. Pölten.

AuthorOtto Lorey
Project Manager Lower Olt,
Bucharest, Romania

Otto.Lorey@vs-hydro.com

May 2008 I 17 I HyPowerAUSTRIA

Re-openingof Wiesberg power plant
In August 2005, a depression in the Adriatic region caused
heavy rains in the Balkans, Austria, Switzerland and Southern
Germany. The abundance of water destroyed the power supply
in those regions as well as telephone lines. Railway lines were
flooded and impassable; even power plants had to be cut off inorder to avoid more damage.

The Wiesberg hydro power plantin Vorarlberg /Austria, right at theborder to Switzerland, was affected,
too. The 105 year-old plant wasburied under ten meters of rubble,
tree trunks and mud. Both neighboring rivers, the Rosanna and Trisanna, were rerouted, their banksslightly damaged.
A feasibility study, conducted postdisaster, indicated that reconstruction was possible. So, two years
after the Alpine flood, the Wiesberg
plant was re-opened with a big
ceremony. However, financial losses
for the plant owner Donau Chemie
AG were about 21 million Euros –about one third higher than estimated immediately after the flood.

May 2008 I 17 I HyPower

Seven million Euros from theAustrian fund for catastrophiessmoothed the way for the reconstruction project.
But execution endured some set
backs. There was the risk of landslides in winter, terms of delivery forparts were not that easy to combinewith the project schedule and only
a limited number of river stones
could be used as building material.
Even so, already nine months after
the flooding 90 per cent of power
production were reached at Wiesberg again: an appeal to enforce
the works in order to reach fullpower output as soon as possible.

High-level representatives ofAustria’s government and industry
celebrated the re-opening duringa ceremony for Vorarlberg’s historichydro power plant. Tyrol’s Governor
Herwig van Staa pointed out that itwas very important to come to theaid of Donau Chemie AG, as the
Wiesberg hydro power plant, andthe Landeck power plant are special
symbols of the region.

AuthorNina Pawlitschko
Marketing and Sales,
St. Pölten, Austria

Nina.Pawlitschko@vs-hydro.com

41

AUSTRIA

Voith Siemens Hydrobuys Austrian small hydro expert Kössler
Voith Siemens Hydro Power Generation GmbH & Co. KG based in
St. Pölten recently acquired Kössler GmbH Maschinenfabrik basedin St. Georgen, Austria. Under this plan global operations will be
expanded based on joint expertise. The antitrust authorities
approved the deal in late 2007.

42

May 2008 I 17 I HyPowerAUSTRIA

Kössler is a full-line supplier ofsmall hydro power plants providing
engineering, manufacturing andinstallation. With a staff of 74, thecompany achieved sales of around17 million Euro in the last fiscal
year. Kössler will become part of
the Small Hydro Division of Voith
Siemens Hydro Power Generation
and will combine their technicalexpertise, their customer orientationand operational speed with Voith
Siemens Hydro‘s technology andglobal sales network.
The increasing demand to generate
electricity from renewable sources
is coming into focus on a global
scale. Both small as well as largehydro play an essential role inemission-free generation and havegreat potential to contribute to CO2
reduction measures.

Therefore, the strengthened global
set-up within the small hydro segment is of high importance for bothcompanies. “With this step into a
joint future we combine 80 years
of Kössler’s small hydro know-how
with 140 years of Voith Siemens
Hydro’s business expertise”, said
Dr. Gerhard Blaschitz, CEO of Voith
Siemens Hydro’s Austrian unit:“And we will be able to increase
service for our customers”.
Volpert Briel, Head of Voith Siemens
Hydro’s Small Hydro Division, said:“Product portfolio and global outreach of both companies complement each other nicely and theresult will be much more than justthe sum of its parts”.

New Management Team
Kössler’s new Managing Directors are
Josef Lampl (Sales, Finance, Controllingand Human Resources) and Robert Doppler(Project Management including Design,
Sourcing, Manufacture, and Erection).
Both are experts in the area of small hydroequipment and work with Kössler andVoith Siemens Hydro for many years.

AuthorMarie-Luise Leonhardt
PR and Communications
Coordinator,
Heidenheim, Germany
Marie-Luise.Leonhardt@vs-hydro.com

May 2008 I 17 I HyPower43

AFRICASpecial training programfor staff of Ethopian Electric Power Corporation
Voith Siemens Hydro Heidenheim, Germany, hosted ten Ethiopian
Electric Power Corporation (EEPCO) employees who will operate
the Gilgel Gibe II hydro power plant. During an intense five-weektraining course, the EEPCO staff learned about the equipment
Voith Siemens Hydro supplies for Gilgel Gibe II and how to handle
the operator-interfaces in the plant.

An extensive program was developed for the Ethiopian guests comprising various modules which
covered all aspects of maintaining
and operating the plant successfully.
Experts gave the EEPCO-employees an understanding of the hydraulic design of the 105 MW Peltonturbines as well as of the mechanical design of the generators.
Operation of the control and automation system as well as the governor were also part of the course.
Training certificates were given at
the conclusion of the successful
course.
The EEPCO employees also had
the opportunity to learn more about
Voith Siemens Hydro’s manufacturing and R&D facilities and to get
to know their contacts personally,
which strengthens their relationshipwith each other.

44

Voith Siemens Hydro considers thisas one of its core values in customer relations.
This close relationship among thestaff of both companies will continue. The same EEPCO employees
worked with the Voith Siemens
Hydro team throughout installationof the electromechanical equipment
on-site. At the end of 2006, the first
EEPCO-team had already been
trained and qualified regarding
electrical topics. With the conclusionof this second training course,
focused on mechanical issues,
the off-shore training program for
EEPCO is complete; however,interaction and cooperation willcontinue.

AuthorMartin Buschler
Project Manager,
Heidenheim, Germany

Martin.Buschler@vs-hydro.com

May 2008 I 17 I HyPowerAFRICA

Hydro power
is a vital source of electricity in Africa
One of the biggest challenges for almost every Africancountry is providing electric power to its citizens. Currently,
some 540 million Africans do not have access to electricity.
Through the expansion of hydro power, this situation could besignificantly improved. To date, only seven per cent of the hydropotential in Africa has been developed. Another 290,000 MW
could still be unlocked.

Over 70 per cent of Kenya’s poweris generated by the country’s hydropower stations. Presently, just under
680 MW are produced and another440 MW are under construction.
Voith Siemens Hydro is participatingin this development: several turbine/
generator units are being overhauled at the Kiambere hydro power
station. Two new 84 MW Francis
runners, uprated from the original
72 MW units, were manufacturedin São Paulo and already arrived
on-site.
The rotor poles of the generatorswith a nominal output of 85 MVA are
also overhauled. Additionally, thegenerator cooling system is optimized; new governors will be supplied as well as a new excitation
system. In the summer of 2008, theoperator, Kenya Electricity Generating Company (KenGen), will reconnect the modernized power station
to the grid.

May 2008 I 17 I HyPower

Kiambere is Kenya’s second largest
hydro power station and receives
its water supply from the Tana, thelargest river in the country. It is oneof the five power stations of theSeven Forks hydro power network,
which is of vital importance to theelectricity supply of the 2.8 million
inhabitants of Kenya’s capital
Nairobi. Voith Siemens Hydro has
already supplied the equipment
for the Gitaru hydro power station,
which is also part of the Seven
Forks.

Africa, as we know it from movies, books
and travel brochures. But what the picture
does not show: on the African continent,
some 290,000 MW of hydropower can be
developed.

AuthorLothar Ritter
Project Manager,
Heidenheim, Germany

Lothar.Ritter@vs-hydro.com

Energy Source: Being the largest river in
Kenya, the Tana supplies Kiambere hydropower station with water.

45

CHINA

Well positioned
in China
Voith Siemens Hydro Power Generation Shanghai has recently
awarded its largest contract since its foundation in 1994: thesupply of the electromechanical equipment for the Jinping II
project on the Yalong River in Sichuan province. Additionally,
the operating unit will supply the first three units for a newhydro power plant Nuo Zha Du.

Worth approximately 120 million
Euros, Jinping II is the largest-everdeal for Voith Siemens Hydro
Shanghai. The order was placed by
Ertan Hydropower Development Co.
The contract marks the kick-off ofa major hydro power development
along the Yalong River, China’s
fourth-largest source for this typeof energy generation. Located at thelower reaches of the river, Jinping II
has a total capacity of 4,800 MW
making it the largest of the fivehydro power stations on the Yalong.

46

It will be equipped with eight Francis
turbines, each rated at 600 MW.
The power station has a maximum
head of 318 meters and, at 17 kilometers, its penstock is one of thelongest in the world.
With the award of Nuo Zha Du
Chinese customer Huaneng
Lancangjiang Hydro Co. again
relies on Voith Siemens Hydro
after Xiao Wan. Voith Siemens
Hydro will supply the first threeturbines for this new hydro power
plant, which will be built in Simao
City on the lower reach of the
Lancangjiang by 2014. Whencomplete, nine 650 MW Francis
units will have a total capacityof 5,850 MW.

Xiao Wan’s on-site workshop is now
fully operational. For Voith Siemens
Hydro Shanghai, this is the third onsite manufacturing facility after Long
Tan and La Xi Wa. Transportation
conditions for Xiao Wan were very
limited, making on-site manufacturing necessary. Work on these units
is ahead of the project schedule.

AuthorClare Chen
Communications Coordinator,
Shanghai, China

Clare.Chen@vs-hydro.com

May 2008 I 17 I HyPowerJAPAN

Promising perspectives
at Voith Fuji Hydro’s 10 th anniversary
Voith Fuji Hydro K.K. celebrated its ten year anniversary in fall.
On October 1, 1997 the company was founded in Kawasaki asa joint venture of the then Voith Hydro GmbH, Heidenheim, andFuji Electric K.K., Tokyo. Today Voith Fuji Hydro, with around
120 employees, is responsible for the Japanese hydro market
and Southeast Asian and Pacific countries.

The company’s foundation coincided with severe deregulationsof the Japanese power generation
market leading to a massive declineof all energy related business inJapan. Since then, however, major
restructuring, strengthening of hightechnology competences andincreasing international activities
led to a successful turnaround of
the company.

View from the 70 th floorof the Landmark Tower.

May 2008 I 17 I HyPowerThe global trend for clean andrenewable energy generation drives
also the Asia Pacific area, providing
an attractive potential for hydrobusiness opportunities in the region.
“With this celebration we express
our thanks to all our employees fortheir great efforts during all theseyears”, said Dr. Martin Küchle,
President of Voith Fuji Hydro:“Based on a strong foundation we
look forward to the next ten years
which will have its own challenges
but look quite promising”!

Mr. Ginjiro Yanai,CEO of joint venture partner
Fuji Electric Systems.

AuthorTomomi Taft
Assistant Financeand Administration,
Kawasaki, Japan
Tomomi.Taft@vs-hydro.com

Dr. Hubert Lienhard,then CEO of Voith Siemens Hydro
during his speech (with interpreter).

47

EVENTSCHA President Pierre Fortin speaks
with Denys Turcotte, President and CEO
of Voith Siemens Hydro Canada.

Close to customers
The major hydro conferences in 2007 provided excellent opportunities for the international and North American Voith Siemens
Hydro sales force to reach out to customers.

In Chattanooga, Tennessee,
USA, during Waterpower XV, inthe Hunter Museum in July andin Hydro 2007, directly below thefamous Alhambra buildings of
Granada, Spain, in October, thetraditional Voith Siemens Hydro
customer events offered perfectevenings of entertainment andrelaxation after a busy conference
day.
Both events provided good venues
to establish new and strengthen
existing contacts on the exhibition
floor and at sessions. It also gave
the company a platform on whichto present its innovative drive inocean technologies, and on its
commitment to the hydro industry,
relating to IHA’s Sustainability
Guidelines and Sustainability
Assessment Protocol.

48

The company’s intense positioningin hydro power was also well visible
in the Forum on Hydropower, theannual event by Canadian Hydropower Association (CHA), gathering
industry leaders and experts in
Ottawa, Canada, in November, 2007.
The 2007 conference had its focus
on the industry’s capacity to innovate and adapt. “A mature and wellestablished technology, hydro powerhas contributed extensively to
Canada’s economic and environmental well-being, and will continue
to do so for coming generations”,
concluded Pierre Fortin, the President of the CHA. A good exampleof this ongoing innovation is theindustry’s development of technologies to optimize efficiency while
reducing its environmental footprint,
by, for example, integrating fish
ladders and fish-friendly turbines. 䡲May 2008 I 17 I HyPowerEVENTS

Conferences, seminars
and symposia

Date

Event / Further information

May 7 - 9, 2008

2 nd Australasian Hydro Power Conference

Christchurch, New ZealandPaper presentation by Voith Siemens Hydro
www.hydroconference.co.nz/

May 21 - 22, 2008

All-Energy ’08

Aberdeen, UK

Booth by Wavegen, A Voith and Siemens Company [No. H 12]
www.all-energy.co.uk

June 11 - 13, 2008

Hidroenergia 2008

Bled, Slovenia

Paper presentation by Kössler, A Voith and Siemens Company
www.esha.beJune 30 - July 3, 2008

9th International Conference on Flow-Induced Vibrations

Prague, Czech Republic

Conference 2008

Paper presentation by Voith Siemens Hydro
www.it.cas.cz/fiv2008
July 14 - 18, 2008

HydroVision 2008

Sacramento, CA, USA

Booth by Voith Siemens Hydro [No. 801]
Paper presentations by Voith Siemens Hydro
www.hcipub.com/hydrovision

August 24 - 29, 2008

42nd CIGRE Session

Paris, France

www.cigre.org/gb/events/session.asp

October 6 - 8, 2008

Hydro 2008

Ljubljana, Slovenia

Booth by Voith Siemens Hydro [No. 23]
Paper presentations by Voith Siemens Hydro
www.hydropower-dams.com/hd_71_0.htm

October 27 - 31, 2008

24th IAHR Symposium on Hydraulic Machinery and Systems

Foz do Iguaçu, Brazil

Paper presentations by Voith Siemens Hydro
www.iahrmachinery2008.com

November 26 - 28, 2008

15th International Seminar on Hydropower Plants

Vienna, Austria

Paper presentations by Voith Siemens Hydro
www.viennahydro.com

March 15 - 22, 2009

5th World Water Forum

Istanbul, Turkey

www.worldwatercouncil.org

May 2008 I 17 I HyPower

49

POLITICS

First company-internal workshop
on hydro’s sustainability
Voith Siemens Hydro, with representatives from the World Wide
Fund for Nature (WWF), held a first workshop for sales staff andalso discussed various aspects of sustainability in hydro power
projects last summer.

The importance of knowledge
about sustainability in hydro power
projects was emphasized by Voith
Siemens Hydro’s former CEO,Dr. Hubert Lienhard, in his introductory and concluding remarks.
He stressed that energy supply
and poverty alleviation will remain
issues of global importance withthe challenge of balancing environment, economic growth and social
development with respect to building new infrastructure.

Martin Geiger, Head of the WWF’s
global Freshwater Program, and
Dr. Petr Obrdlik, an expert in thefield of aquatic habitat, came to
Heidenheim to present WWF’svision of free-flowing rivers worldwide. This discussion provided first
approaches to matching hydropower plants with the preservationof free-flowing rivers and the evergrowing demand for renewableenergy from water.

Changes inInternational Hydro Association
The Hydro Equipment Association (HEA)
is pleased to announce that three of its
members were re-elected to the industry
association’s Board: HEA Chairman and CEO
of Voith AG, Dr. Hubert Lienhard (Germany),
Philippe Cochet, President of Alstom Hydro(France), and Dr. Hans Peter Schiffer,Managing Director of the HEA (also Germany), will continue to represent the hydroequipment manufacturers in the 18-strong
committee until 2009.
Dr. Refaat Abdel-Malek is the new IHA
President, who was appointed unanimously
in September 2007.

50

May 2008 I 17 I HyPowerPOLITICS

Voith Siemens Hydro is fully awareof its responsibility to develop hydropower projects in an environmentally and socially sustainable way.
The company considers itself to bea leader in its intense considerationand promotion of sustainability
issues within the hydro powerindustry, including the continuous
education of its staff worldwide.
In the future, the “Sustainability
Assessment Protocol” – developedby the International Hydropower
Association (IHA) – shall be
increasingly applied in the wholeindustry as an assessment tool
through which sustainability performance in hydro power projects
can be measured. In addition, thecompany has already started towork on a process to find out how
sustainability in hydro power
projects can be assured in thedecision making process of anequipment supplier.
Participants in the workshop worked
on a case study with the Sustainability Assessment Protocol in theirhands to exercise verification of
performance against rules.

May 2008 I 17 I HyPowerThe presentations provided bygroups were quite impressive.
Participants found crucial relations
between case and Protocol, butalso discovered the difficulty of nothaving sufficient information on the
project to assess many aspects.
However, the way forward, witha further developed Protocol from
IHA, is clearly set for the globalorganization of Voith Siemens
Hydro.
Relationship building with WWF,
one of the world’s largest NGOs,
shall not only show the readinessfor dialogue and cooperation but
shall be developed further. It is thebest approach to work throughcontroversial views of hydro power
development. Even if there might
not be the one and only solution for
all stakeholders, substantial andsolutions-oriented dialogue on atrustful basis will help going forward.

Remarkable move towards
sustainable solutions
The interest and need for sustainable
solutions in hydro power is clearly visible
in the first foreign language version of the
IHA Sustainability Guidelines and Sustainability Assessment Protocol. Both documents are now available in Mandarin andcan be downloaded from IHA’s website.

AuthorBarbara Fischer-Aupperle
Head of Communications,
Heidenheim, Germany

Barbara.Fischer-Aupperle@vs-hydro.com

51

ESSAY

Voith Foundation São Paulo
supports socialand vocational projects

52

May 2008 I 17 I HyPowerESSAY

What managers like to call “Human Resources” in businesslanguage is ultimately the individual talents and strengthsof the company’s employees.

These employees are part of thelocal society. They grew up here.
Much of what makes them so valuable to the company as employees
is due to their particular social
circumstances. So at the end of
the day, companies should connect
to and take responsibility for thesociety from which it recruits its
manpower.
Social commitment

The charitable organization coordinates the social commitment of
the Voith Group in Brazil. Since its
foundation, it has developed numerous initiatives of its own and has
supported programs that promote
the social integration and educational opportunities of children andyoung people from poor or disadvantaged families in the neighborhoods near its manufacturing
facilities.

is a tradition at Voith
Employees help as volunteers

The Voith Group has taken social
responsibility very seriously for along time. And in this tradition, theVoith Foundation, established inSão Paulo in 2004, operates in the
tradition of the Hanns Voith Foundation founded in 1953 with the mission of supporting the professional
education of gifted and disadvantaged young people.

May 2008 I 17 I HyPower

Many Voith employees have alreadycommitted themselves to theseschools as volunteers, actively
helping in its maintenance for example. The work of the Voith Foundation includes not only access to
education for those living adjacentto the Voith premises but includes
cultural activities, too. Dance andtheater performances take place
as well as literature and writing
projects, with which fantasy, creativity and creation of social awarenessare equally stimulated.

Steps to improve the instructionaland educational opportunities areintegrated into a framework ofintense collaboration with local
schools. A positive learning atmosphere is consciously being createdwith the aid of practical teachingmodels and modern educational
methods in order to reduce thenumber of high school dropouts.

53

ESSAY

Formare – train, develop,
cultivate

The support of the so-called
Formare Program, which was
initiated by a Foundation of theBrazilian Railway and Auto-Parts
Supplier Iochpe-Maxion, is intensive. The program stands foradvanced training, education andthe development of young students.
As a Formare partner, the Voith
Foundation builds on this goodconcept to improve the vocational
prospects of young people fromlower income levels.

54

May 2008 I 17 I HyPowerESSAY

With Formare, Voith offers students
between the ages of 15 and 17
a year of theoretical lessons andpractical insights into the company’s
day-to-day operations. In keepingwith the program’s motto “Learn
to learn, learn to do, learn to be”,
participants are prepared for theirprofessional careers as well as fortheir lives as citizens. The spectrum
ranges from mathematics, physics
and English to PC applications andtechnological design, right throughto industrial material science andadministrative systems. It also
includes topics like hygiene, health,safety, and environmental stewardship. Over 70 Voith employees
volunteered to look after the teenagers’ training. The teenagers
receive free transportation to theircourses, medical care, food and amonthly income.

May 2008 I 17 I HyPower

Expansion of Foundation
activities is planned“A comprehensive education is
the most effective way to advanceequality of opportunity in the longterm and to introduce a communal
development of social sustainability”, explains Udo Gierlich, Foundation President and Business Development Director of Voith Industrial
Services in Brazil. “There are ample
ideas, concepts and good suggestions, and the employees are always
more than ready to help. We will
make our contribution and continue
to expand our social and educational project activities for the
future”, Gierlich promises. 䡲

Udo Gierlich
Udo Gierlich
is Business Development
Director of Voith Industrial
Services and Presidentof Voith Foundation since
January 2006.
He believes that education in a broader
sense creates possibilities for social
integration and development: “Educationis the major leverage for social transformation in medium and long terms. We are
evaluating the possibility of expanding ourareas of influence in the future, particularly
focusing on sports activities”, he says.
Proposals and plans are abundant:“The third sector is developing in different
companies and countries. We are seeking
to do our part”.

55

OCEAN ENERGIESTaking the media
to the ocean

Contract for first tidal
current machines

20 journalists in Scotland

With German Minister Glos

to find the energy of waves

in Korea

Lively discussions on-site.

Signing ceremony.

A group of print and television
journalists visited Wavegen’s Inverness-based wave tank facilities andthe Limpet wave power station on
the Island of Islay, off the Scottish
West Coast.

Witnessed by Michael Glos, Germany’s Minister of Economics andTechnology, the official “go ahead”
for the first phase of the world’s firsttidal current power park was officially given. Dr. Hubert Lienhard,former CEO of Voith Siemens Hydro
and Jong-Seon Park, his counterpart of the joint venture partner
Renetec, signed a Memorandum ofUnderstanding with CEO Soo-Yang
Han of Posco Engineering & Construction regarding development,
installation and trial run of the first
three tidal current turbines.

On a day with perfect weather
and wave conditions, the grouplearned about Voith Siemens
Hydro’s progress in wave technology development towards commercial application and optimized
turbine use in the latest breakwaterproject award for Northern Spain’s
Mutriku harbor. 䡲Voith Siemens Hydro Tidal Corporation’s first project will be locatedoffshore the South-Korean province
Jeollanam-do. When complete, it will
have an overall rated capacity of
600 MW. This will satisfy the energy
demand of approx. 400,000 households in that region. In contrast toother tidal power concepts, no dam
is needed for tidal current power
plants. 䡲

56

May 2008 I 17 I HyPowerOCEAN ENERGIESNew Head
for Tidal

New CEO
for Wavegen

New Managing Director

Matthew Seed joins Wavegen’s

for tidal current activities

Management Board

in Korea

Tae-Hyoung Kim.

Matthew Seed.

Tae-Hyoung Kim has been appointed Managing Director for Voith
Siemens Hydro Tidal Corporationin Seoul, the joint venture company
for tidal current technology recently
established by Voith Siemens Hydro
and the Korean renewables company Renetec. Prior to his appointment Mr. Kim worked as Managing
Director for the Korean subsidiary ofa German company. He specialized
in the field of electrical, electronic
and optical connection, transmission and networking.

Matthew Seed has become the
new Chief Executive Officer of
Wavegen based in Inverness,
Scotland. He succeeds David Gibb
who resumes the position of Chief
Financial Officer.

Mr. Kim holds a Bachelor of
Sciences in Industrial Psychology
from Sung Kyun Kwan University
in Seoul, Korea, and a Master ofBusiness Administration from San
Francisco State University, California, USA. In his former businesspositions he has gathered valuable
experience in the development ofbusiness opportunities and marketing strategies for new products. 䡲May 2008 I 17 I HyPowerMr. Seed joins Wavegen, from
Advantica (formerly British Gas
Technology) where he held various
positions. The most recent was
General Manager for the commercialization of the British Gas Lurgi
coal gasification technology including a special focus on China andNorth America.
Mr. Seed has a broad background in
the energy industry, ranging from oil
and gas exploration to project delivery and technology commercialization. He holds an honors degree inEngineering from the University ofCambridge and is a Chartered Engineer and Member of the Institutionof Mechanical Engineers. 䡲

57NEWS FROM THE VOITH GROUP

Voith Turbo
How to maneuvera 365-meter ships’ convoy?

A ships’ convoy consisting of
25 pontons or “barges” lined up likebuilding blocks and driven from theback and the sides by a push boat
is not an everyday sight. When thisconvoy is also required to adapt to
the river flow across its entire lengthof 365 meters, it borders on theseemingly impossible. But a Bow
Steering Module (BSM) fitted witha Voith Schneider Propeller allows
this complex task to be easily
accomplished.
Rio Tinto is an Australian mining
company specializing in the extraction of raw materials such as ironore. The company currently operates iron ore mines in Brazil, fromwhich 1.5 million tons of the precious raw material are dug up every
year. Thanks to the cooperation
with Voith Turbo Marine, the company was able to solve the logistics
problem of transporting the iron ore
from the heart of the country to alarge sea harbor.

58

Along a stretch of 2,400 kilometers,
the raw material is moved to
Buenos Aires on the Rio Paraná,through Brazil, Paraguay andArgentina.
The convoy, consisting of 25 barges
that are best described as floating
containers, can transport 33,000
tons of iron ore. The 25 barges,
arranged in rows of five, are put
between a push boat and a BSM
forming a convoy with a total lengthof 365 meters. While the push boat
moves the convoy and provides
accommodations for the crew, theBSM is exclusively responsible forsteering and maneuvering the fleet.

“This is ready cash” – this is how
Ivo Beu of Voith Turbo Marine summarizes the advantages of the BSM.
After all, the 2,400 kilometer journeyfrom the loading harbor to Buenos
Aires can take four to six weeks,
depending on the water level of theriver. 䡲

The BSM is operated by a VSP
size 26. The reason for a BSM is
obvious: if there is additional steering force at the bow, the braking
distance of the convoy is shortened
and accidents are prevented.
During storms and strong currents,
the convoy can be much better
controlled, and the journey time is
reduced by approximately one third.

May 2008 I 17 I HyPowerNEWS FROM THE VOITH GROUP

Voith Industrial
Services
Brazil is quickly moving
towards integration of its units

In October 2007, the Industrial
Services division merged its threecompanies in Brazil into one entity,– Voith Serviços Industriais do
Brasil Ltda.
With several branches, present
at the main industrialized states
in Brazil like São Paulo, Bahia,
Espírito Santo, Minas Gerais and
Rio Grande do Sul, over 2,400
employees work for the new company. They support several industrial sectors such as automotive
and its suppliers (DaimlerChrysler,
Ford, VW Audi, DOW, John Deere),energy (Petrobrás), mechanicalengineering (Voith, Vetco Gray)and logistics (MRS). The scope of
supply ranges from cleaning activities, maintenance of production
equipment, maintenance engineering and retrofit of tooling machines.

May 2008 I 17 I HyPower

Voith Paper
Growth in the services area is theresult of the increase of the Brazilian economic activity which attracts
day-by-day new investments to thecountry. A growing tendency atmajor groups is related to the development of strong, reliable, and longterm partnerships. The customers
demand a wide scope of supply withqualified personnel, solidity andinnovation in order to allow them tofocus on their core businesses.
Recognized in 2006 with the Q1
Certificate from Ford and the
INTERAÇÃO Award from DaimlerChrysler, the Brazilian unit ofIndustrial Services is able to develop and offer tailor-made solutions
for each type of production support
activity. 䡲Voith Paper successfully concluded
the fourth test run of the ATMOS
technology at the Chilean Talagantemill of CMPC. The company isconsidered to be the second largest
tissue producer in Latin America.
The now installed equipment greatlychanges the tissue market by ensuring the production of premium tissue
with significant production cost
reduction, for example via reductionof energy consumption. The targetsof the last test run were are an
additional speed increase, a further
reduction of the required energy andthe development of other premium
tissue products. All targets wereachieved. ATMOS is an innovativetechnology, which was developed tosignificantly reduce the main problems of the production of premium
tissue using standard TAD technology. ATMOS now makes it possible
to produce premium tissue basedon high contents of recycled fiber,
while maintaining commercial
machine speed levels, decreasing
investment costs by 40 per cent andproduction costs by 35 per centcompared to TAD technology. 䡲

59Imprint
Published by:Voith Siemens Hydro
Power Generation GmbH & Co. KG
A Voith and Siemens Company

Editor:Barbara Fischer-Aupperle
Editorial coordination:
Marie-Luise Leonhardt
Voith Siemens Hydro
Power Generation GmbH & Co. KG
Alexanderstr. 1189522 Heidenheim, Germany
Fon +49 7321 37- 63 54
Fax +49 7321 37-78 28
Marie-Luise.Leonhardt@vs-hydro.com
www.voithsiemens.com
In cooperation with:
Manfred Schindler
Werbeagentur OHG, Aalen, Germany
Text + Konzept AG, Essen, Germany

10000

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