Water Power and Dam Construction. Issue February 2010
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Here you will find details on some of the executive appointments made by companies within the hydro power and dams industry
over the past few months. To submit details of appointments for publication in a future issue of the magazine,
please send an email to the editor, Carrieann Stocks, at: carrieannstocks@globaltrademedia.com
EXECUTIVE MOVEMENTS
APPOINTMENTS
WWW.WATERPOWERMAGAZINE.COM FEBRUARY 2010 11
Cavico appoints new mem-
bers to Cavico Vietnam
Management Team
Cavico Corporation’s wholly
owned subsidiary, Cavico
Vietnam, has appointed Mr. Bao
Quoc Tran as vice president of
Accounting and Finance and Mr.
Dieu Thanh Tran as vice presi-
dent in charge of the operation at
Daksin Hydro Power Project, of
which Cavico is a leading partner
of an EPC contractor, which also
includes Coma Corporation and
Song da Corporation.
Mr. Bao Quoc Tran joined
Cavico in 2000 and has served as
the Company’s Chief Accountant
since 2003. Tran holds a master’s
degree in banking and finance
and graduated from Hanoi
National Economic University
in 1998.
Tran has served as Cavico
Vietnam’s Chief Accounting
Officer from 2003 and as Cavico
Corp.’s Chief Accounting Officer
from July 2009. Tran has played
a key role in the preparation
of the Company’s consolidated
financial statements under VN
GAAP and converting them to
U.S. GAAP in compliance with
SEC regulations.
He works closely with the
Company’s Vietnam-based and
US-based auditors to ensure the
proper preparation of finan-
cial statements with adequate
disclosures for Forms 10-Q
and 10-Kand other U.S.
SEC fillings.
Mr. Dieu Thanh Tran joined
Cavico in 2000 and served
as project manager at Nui
Beo Coal Mine from 2000 to
2002, as president of Cavico
Mining from 2002 to 2007 and
as Cavico Vietnam’s Chief of
Cost and Planning from 2007 to
December 2009.
A graduate from Hanoi
University of Technology with
a degree in mechanical engineer-
ing in 1994, he serves in differ-
ent key roles due to his deep
and extensive knowledge and
experiences in mining construc-
tion, hydro power construction,
project construction and cost
and planning control.
Hydro Group appoints Derrick
Reith as international sales
director
A member of the Chartered Institute
of Marketing, Institute of Directors
and holding an MSc’ in internation-
al marketing management, Reith
will be based at the company’s
head office in Aberdeen. He will
be responsible for the formulation
of business strategy and work with
Hydro Group’s worldwide business
partners to further develop interna-
tional markets.
Reith has spent over 20 years
working within the Oil and Gas
Industry, with experience in the
engineering, manufacturing and
service sectors.
Formerly general manager at
Proserv Offshore Ltd, Reith’s
appointment comes as part of
the company’s overall vision to
strengthen the sales team and
drive the company forward into
emerging international markets.
Chloe Munro appointed to
Hydro Tasmania Board
Ms Munro was appointed as a direc-
tor from 1 March 2010 for a period
of three years by His Excellency the
Governor in Executive Council on
25 January 2010. She replaces Mr
Michael Cavell who retired from the
Board in early November 2009.
Munro is the independent non-
executive chairman of AquaSure,
the consortium building Victoria’s
desalination plant and is also a
member of the National Water
Commission. Until July 2009
she was an executive director at
Telstra, holding leadership posi-
tions in human resources, business
operations, information technology,
public policy and communications
and customer service.
Serving in the Victorian public
sector between September 1996
and February 2004, Munro held
the positions of Secretary of the
Department of Natural Resources
and Environment and of the
Department of Primary Industries.
Previously she was a Deputy
Secretary in the Department of
Treasury and Finance. She has
been a member of the board
of Food Science Australia and
a commissioner and deputy
president of the Murray-Darling
Basin Commission.
Ms Munro holds Master’s
degrees in mathematics and phi-
losophy from Cambridge University
and in business administration from
Westminster University. She was
awarded a Centenary Medal for
outstanding contribution to public
administration in 2001.
Kleinfelder hires Linda
Lannen as Chief Information
Officer
Lannen will
be responsible
for all IT infra-
structures, enter-
prise systems
and application
development
efforts. She will
also work to increase overall pro-
ductivity and improve client deliv-
ery and service with the strategic
use of technology. Lannen brings
with her more than 20 years of
experience in operations manage-
ment and team leadership, includ-
ing international operations.
Most recently, Lannen was
the vice president of information
technology at MWH Global, Inc.,
where she held a variety of technol-
ogy leadership positions including
infrastructure management, stra-
tegic technology planning, and
project and service management.
She has also held management
positions at XOR Inc. and U S
West Advanced Technologies.
Lannen received her Executive
MBA from the University of
Denver, Daniels College of
Business, which emphasizes ethics
and leadership. She also earned a
degree in Business Administration
& Finance from Regis University
and studied mathematics/actuarial
science at the University of Iowa.
Micheal Dunn named as new
Pacificorp Energy President
MidAmerican Energy Holdings
Company, the parent company of
Rocky Mountain Power, Pacific
Power, PacifiCorp Energy and
Kern River Gas Transmission
Company, announced the appoint-
ment of Micheal Dunn as president
of PacifiCorp Energy, effective
February 1. Dunn joins PacifiCorp
Energy from Kern River Gas
Transmission Company, based in
Salt Lake City, where he has served
as president since June 2007.
As president of PacifiCorp
Energy, Dunn will have responsibil-
ity for PacifiCorp’s electric genera-
tion and energy trading functions,
and coal mine operations.
Dunn earned a Bachelor of
Science degree in civil engineering
from the University of Oklahoma
in 1988. Starting in 1988, he
held several engineering positions
for a natural gas pipeline company
in the Midwest.
Dunn joined Kern River in 1990
as a supervisor/chief inspector for
the initial construction of the Kern
River pipeline system. During his
time with the company, Dunn
served in positions including district
supervisor; senior engineer; project
manager; project director for the
Kern River 2003 Expansion Project;
director of operations; director of
information technology; and vice
president of operations, informa-
tion technology and engineering.
Gilles Lefrançois, Innergex
founder, to retire
Innergex Renewable Energy (INE)
has announced the retirement of
Mr. Gilles Lefrançois, Founder
and Executive Chairman of the
Board of Directors of INE. This
followed a joint announcement by
Innergex Power Income Fund and
INE about their agreement to stra-
tegically combine the two entities.
Lefrançois officially left Innergex as
an employee on 1 February, but he
will continue to act as Chairman of
the Board of INE and member of
the Fund’s Board of Trustees until
the closing of the transaction men-
tioned above.
Furthermore, over the next 12
months, Mr. Lefrançois will con-
tinue to share his experience and
expertise with the company as a
special advisor.
Let IWP&DC’s readers know about your forthcoming conferences and events.
For publication in a future issue, send your diary dates to: Carrieann Stocks, IWP&DC, Global Trade Media Ltd, Progressive House, 2 Maidstone Road,
Foots Cray, Sidcup, Kent, DA14 5HZ, UK. Alternatively, email: carrieannstocks@globaltrademedia.com, or fax:+44 208 269 7804
DIARY OF EVENTS
12 FEBRUARY 2010 INTERNATIONAL WATER POWER & DAM CONSTRUCTION
DIARY
March
9-10 March
Dam and Reservoir Refurbishment
and Safety
London, UK
CONTACT: Rebecca Knowles,
Arena International, Brunel
House, 55-57 North Wharf Road,
London, W2 1LA.
Tel: +44 (0) 20 7915 9769.
Fax: +44 (0)20 7753 4250.
rebbecaknowles@arena-internati-
onal.com.
www.arena-international.com
17-18 March
Hydraulic Engineering and
Environment - Requirements,
Techniques, Solutions
Dresden, Germany
CONTACT: TU Dresden, D-01602
Dresden, Germany
http://www.iwd.tu-dresden.de
24-26 March
HydroVision Russia
Moscow, Russia
CONTACT: Mathilde Sueur,
Conference Manager, PennWell.
Tel: +44 1992 656 634.
Fax: +44 1992 656 735.
Email: mathildes@pennwell.com.
www.hydrovision-russia.com.
29-30 March
Asia 2010
Sarawak, Malaysia
CONTACT: Aqua~Media
International, Conference and
Exhibition Teams, PO Box 285,
Wallington, Surrey, SM6 6AN, UK.
Tel: +44 20 8773 7244.
Fax: +44 20 8773 7255.
Email: Asia2010@hydropower-
dams.com.
com
April
5-9 April
13th Annual Power and Electricity
World Asia
Singapore
CONTACT: Ya Ling Ng ,
Terrapinn Asia, Singapore.
Tel: +65 6322 2771.
Fax: +65 6223 3554.
yaling.ng@terrapinn.com.
7-9 April
3rd International Conference on
Problematic Soils
Adelaide, Australia
CONTACT: Conference Secretariat,
CI-Premier Pte Ltd, 150 Orchard
Road, #07-14, Orchard Plaza,
Singapore 238841,
Tel: +65 6733 2922.
Fax: +65 6235 3530.
Email: cipremie@singnet.com.sg.
14-16 April
15th German Dam Symposium
Aachen, Germany
CONTACT: Conventus
Congressmanagement &
Marketing, Jana Radoi, Markt 8,
D-07743 Jena, Germany.
Tel: +49 3641 353 3221.
Fax: +49 3641 353 3271.
http://www.conventus.de.
15-16 April
Small Hydro 2010
Montreal, Canada
CONTACT: Frances Parker,
Arena International, Brunel
House, 55-57 North Wharf Road,
CORPORATE HEADQUARTERS :: PITTSBURGH, PENNSYLVANIA, US
CALIFORNIA :: MISSOURI :: NEW YORK :: SOUTH CAROLINA
AUSTRALIA :: ARGENTINA :: CHILE :: PERU :: CZECH REPUBLIC :: RUSSIA :: UNITED ARAB EMIRATES
PHONE 001 (412) 856-9700 :: FAX 001 (412) 856-9749
www.rizzoassoc.com
DESIGN, ANALYSIS & INSPECTION • POWER GENERATION • TAILINGS DAMS
Proudly building on over 25 years
of Hydro, Tunneling and Mining Experience.
Let IWP&DC’s readers know about your forthcoming conferences and events.
For publication in a future issue, send your diary dates to: Carrieann Stocks, IWP&DC, Global Trade Media Ltd, Progressive House, 2 Maidstone Road,
Foots Cray, Sidcup, Kent, DA14 5HZ, UK. Alternatively, email: carrieannstocks@globaltrademedia.com, or fax:+44 208 269 7804
DIARY OF EVENTS
WWW.WATERPOWERMAGAZINE.COM FEBRUARY 2010 13
DIARY
London, W2 1LA.
Tel: +44 (0) 20 7915 9642.
francesparker@arena-internati-
onal.com.
21-23 April
Power-Gen India & Central Asia
New Delhi, India
CONTACT: Kelvin Marlow,
PennWell.
Tel: +44 1992 656 610.
exhibitpgica@pennwell.com.
www.power-genindia.com.
23-25 April
Repairs, Appraisal and
Maintenance of Buildings and
Structures and Fibre Reinforced
Materials
Yantai, China
CONTACT: Conference Secretariat,
CI-Premier Pte Ltd
Tel: +65 6733 2922.
Email: cipremie@singnet.com.sg.
www.cipremier.com.
May
23-26 May
78th ICOLD Annual Meeting
Hanoi, Vietnam
CONTACT: Ms Thuy Thanh
Nguyen, Secretariat - 78th ICOLD
Annual Meeting, #4 Da Tuong Str,
Ba Dinh District, Hanoi, Vietnam.
Fax: +84 4 3944 7067.
Email: 78icoldvn@venus-communi-
cations.com
23-29 May
Recent Advances in Geotechnical
Earthquake Engineering and Soil
Dynamics
California, US
CONTACT: Conference Secretariat,
CI-Premier Pte Ltd,
Tel: +65 6733 2922.
Email: cipremie@singnet.com.sg.
June
23-26 June
16th British Dam Society Conference
Glasgow, Scotland
CONTACT: Barbara Sharp,
British Dam Society, C/O Atkins
Water, UK.
Tel: +44 1372 756 838.
barbara.sharp@atkinsglobal.com
http://www.britishdams.org
July
27-30 July
Hydrovision International
North Carolina, US
CONTACT: Libby Smith,
PennWell.
Tel: +1 (918) 831-9560.
Email: LibbyS@PennWell.com.
September
12-16 September
21st World Energy Congress
Quebec, Canada
CONTACT: Organsing Committee,
740 Notre-Dame Street West, 8th
Floor, Montréal, Québec, Canada
H3C 3X6.
Tel: + 1 (514) 397-1474.
Fax: +1 (514) 397-9114.
www.wecmontreal2010.ca.
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14 FEBRUARY 2010 INTERNATIONAL WATER POWER & DAM CONSTRUCTION
SOUTH AMERICA
IWP&DC presents details on 10 hydro power and dam construction projects recently
completed or under development in South America
Focus on South America
LA CONFLUENCIA, CHILE
The 158MW La Confluencia hydro power project in Chile is being
developed by electricity operating company Tinguiririca Energia. The
company is comprised of Australian utility Pacific Hydro and SN
Power, a Norwegian venture of utility Statkraft and the Norfund
Power Invest AS Fund. Hochtief-Tecsa, a joint venture formed
between German company Hochtief’s Chilean subsidiary and the
Chilean Tecsa SA, is the main contractor for the project.
Estimated at a total cost of US$350M, La Confluencia is scheduled
for completion in 2010. It is located in the foothills of the Chilean
Andes in the Tinguiririca Valley, about 140km from Santiago at an
elevation of 1430m.
The run-of-river scheme is located on the Tinguiririca, Portillo and
Azufre rivers and consists of intakes and conveyance systems on two
branches. The Portillo branch comprises a low weir and spillway on
the Portillo river at 1465m asl. Water will pass through a desander
and short open channel before entering an 11km low pressure tunnel
that runs to the surge chamber above the powerhouse at the Azufre
and Tinguiririca rivers.
The Tinguiririca branch consists of a low diversion weir and spill-
way across the Tinguiririca river at 1450m asl that will divert partial
flows through a desander and short open channel to a regulation
pondage of 1.2Mm
3
of live storage capacity.
Water from this will be taken via a 9.3km low pressure tunnel that
joins the surge chamber above the powerhouse, which will contain
two 77.5MW Voith Hydro turbines and generators. A 16km long
transmission line will connect the project to La Higuera switchyard.
The Tinguiririca and Portillo branch tunnels terminate at a concrete
lined vertical shaft, which drops to the open air La Confluencia power
house via a concrete and steel lined high pressure tunnel. This water
will then be discharged directly into the conveyance system for the La
Higuera hydro power project for additional power generation.
Right: Construction work underway on the La Confluencia project
Below: View of the Tinguiririca Valley
WWW.WATERPOWERMAGAZINE.COM FEBRUARY 2010 15
SOUTH AMERICA
La Confluencia is under construction upstream of the La Higuera
project, which is also being developed by Tinguiririca Energia. The
two projects are being developed entirely separately from one another
but are being designed to operate in cascade. They will also be able to
operate independently in case either plant needs to shut down. It is esti-
mated that both projects will generate approximately 1400GWh/yr.
Water inflows at La Confluencia are primarily determined by snow
melt. This makes the project’s hydrology quite different from that of
rain-fed hydro schemes. During the dry season it will be supplied by
snow melt and during the wet season from rainfall. Therefore it is
expected that La Confluencia will be available at full load during the
dry season when the hydrology in the system is below average and
the cost of generation tends to be higher.
The Chilean national energy authority, Comision Nacional de
Energia, is reported to have been very supportive of the project which
is estimated to produce 638GWh/yr upon completion.
SAO SALVADOR, BRAZIL
The 241MW Sao Salvador project in northern Brazil was commis-
sioned in February 2009. It is located on the Tocantins river between
the states of Tocantins and Goais. Construction was completed within
32 months. The plant has guaranteed power of 148.5MW which has
been sold by auction for US$2.6B for 30 years starting from 2011.
The project was developed by GDF Suez’s local subsidiary
Tractebel Energia, which was responsible for project construction
and installation of the transmission lines to connect the generating
plant to the electricity grid system. The company was awarded the
concession to build the project in 2001 and a total investment of
US$395M was required for the scheme. It was also the first hydro
project to be financed under Brazil’s new growth acceleration pro-
gramme (PAC) from which it received US$277M from the Brazilian
development bank.
Furthermore the project helped to create 10,000 jobs within the
region. Over US$31M was also invested in 35 different social and envi-
ronmental programmes. These relate to resettlement, environmental
education and conservation of local flora and fauna. In recognition of
this the project was awarded the declaration of legal and socio-environ-
mental conformity from Bureau Veritas (BVQI). BVQI is an independ-
ent certification body which operates on a worldwide scale.
Chairman and CEO of GDF Suez, Gerard Mestrallet, said that
Sao Salvador is symbolic of the company’s industrial development in
Brazil. It is also leading a joint venture which will build the 1087MW
Estreito plant on the Tocantins river between the states of Tocantins
and Maranhao.
MANUEL PIAR (FORMERLY TOCOMA), VENEZUELA
The Manuel Piar hydro power project is the last scheme to be devel-
oped in the Bajo Caroni hydro power complex on the lower Caroni
river watershed in Venezuela. Three dams (Guri, Carauachi and
Macagua) are already in operation. Upon completion the fourth
project, Manuel Piar, is expected to add an estimated 2160MW of
power to the national grid. It will produce an average of 12,100GWh/
yr, which is equal to the entire electrical consumption of Caracas in
2004, or 13% of Venezuela’s total generation demand. Together, the
four plants will provide 70% of the country’s electricity.
Manuel Piar is being developed by the state-owned utility CVG-
Electrificacio del Caroni (Edelca). Initial river diversion took place in
2002. The main components of the project include a 65m high and
360m long CFRD dam, with a reservoir capacity of 1770x10
6
m
3
.
The existence of the Guri reservoir upstream, with its large potential
for regulating the flow of the Caroni river, has enabled the size of the
Manuel Piar reservoir to be considerably smaller than would have
been necessary for a hydro project of a similar size.
IMPSA was awarded the turbine and generator contract for the
project in 2008. The powerhouse will have ten Kaplan units, each
with 216MW of rated power, 235MW of maximum capacity, a rated
head of 34.65m and speed of 90rpm. The ten generators are three-
phase, vertical shaft, salient-pole synchronous machines. They each
have a capacity of 237MVA, a voltage of 13.8kV and a frequency
of 60Hz. The stator inner diameter is 12.65m with a core length of
2.05m. The rotor consists of a welded spider and a rotor rim made up
of stacked segments for asymmetric radial ventilation, with the rotor
generating pressure for machine cooling.
The Inter-American Development Bank (IDB) has given two loans
to the project. A US$750M loan was awarded in 2005, and a second
of US$800M in 2009. The latter is to help complete construction of
the project and ensure financial stability of the scheme. The loan has
a six-year grace period and an adjustable interest rate.
The total project cost for Manuel Piar was estimated at US$3B
in 2005 but since project approval this has increased significantly
due to the impact of inflation and its impact on the local currency.
According to the Central Bank of Venezuela, cumulative inflation
from 31 December 2003-8 was 105%.
Based on December 2008 prices the project cost is now equivalent to
US$4.3B – a 40% increase based on December 2003 prices. The IADB
said that adjusting physical works to keep within the original budget
wasn’t feasible, hence why it provided further funding for the scheme.
Manuel Piar is expected to come on stream in stages between July
2012 and March 2014.
The project was originally called Tocoma but its name was changed
by a presidential order in April 2006.
MADEIRA COMPLEX, BRAZIL
The 6.45GW Madeira hydro power scheme in Brazil comprises the
3300MW Jirau and 3150MW Santo Antonio projects on the Madeira
river close to the Bolivian border. It is the biggest hydro scheme under
development in South America.
The 30-year concession to build Jirau was granted to Energia
Sustentavel do Brazil which is made up of GDF Suez (50.1%);
Brazilian electric utilities Eletrosul (20%), Chesf (20%); and con-
struction group Camargo Correa (9.9%). Construction started in
December 2008 and the first of 44 turbines are due to become opera-
tional in March 2012.
In July 2009 the Brazilian National Development Bank (BNDES)
and a pool of five private banks agreed to provide US$3.61B in debt
funding for project construction. This finance facility will equate to
68.5% of the total investment cost of the project. The private banks
are Banco do Brasil, Caixa Economica Federal, Banco Nordeste
do Brasil, Itau-Unibanco and Bradesco. The project is part of the
Brazilian government’s growth acceleration programme (PAC).
Andritz Hydro, Voith Hydro and Alstom are part of a consortium
to supply a total of 28 units to the project.
The second component of the Madeira complex, the Santo Antonio
project, is being developed by the consortium Santo Antonio Energia.
This comprises power companies Furnas and Cemig, construction
firms Odebrecht and Andrade Gutierrez, plus banks Santander and
Banif. Construction will be carried out by a wide ranging consortium
View of Sao Salvador dam (C) GDF SUEZ/ ABACAPRESS / BIZZARRI GIUSSEPE
16 FEBRUARY 2010 INTERNATIONAL WATER POWER & DAM CONSTRUCTION
SOUTH AMERICA
called Consorcio Construtor Santo Antonio (CCSA) which com-
prises Odebrecht, Andrade Gutierrez, Alstom Hydro Energia Brasil,
Siemens, Voith Hydro and Andritz Hydro amongst others. BNDES
is to provide a US$2.55B loan for the project.
Operation of the project’s first bulb turbines will begin gradually
from May 2012. Full commercial service of all 44x71.6MW units
is expected by November 2015. The project will have an installed
capacity of 3150MW – equivalent to 4% of all the energy generated
in Brazil in 2007.
The bulb turbines will take advantage of the rapid flow on the
river Madeira – 4000m
3
/sec during the dry season and 45,000m
3
/
sec during the rainy season. This means that compared with the
271km
2
area the whole development will occupy, the plant has a
relatively small capacity reservoir. Some 164km
2
will be covered by
natural flooding, which will result in an increase of the flooded area
by only 107km
2
, corresponding to an area/installed power relation
of 0.086km
2
/MW.
In August 2009 ABB secured a contract worth more than US$540M
to build the 600kV connection from the river Madeira area where the
Santo Antonio and Jirau projects are under construction. The com-
pany will supply a pair of 3150MW HVDC converter stations plus
an 8000MW HVDC back-to-back station to transmit power over the
long distance. The transmission project is to be completed by 2012.
In December 2009 Areva T&D was awarded a US$400M contract
for work on the transmission link. Power from the project will be trans-
mitted through two HVDC bipoles from the northwest to the south-
east of Brazil, allowing the integration to the National Interconnected
System and the utilisation of energy throughout Brazil.
MISICUNI, BOLIVIA
The Misicuni project will increase the supply of water for domes-
tic use and irrigation to the Cochabamba Valley while generat-
ing electricity for Bolivia’s National Interconnected System. The
Cochabamba region has been increasingly suffering from a scarcity of
water both for human consumption and for agriculture, and Bolivia
needs to expand its electricity generation capacity to meet the grow-
ing demand.
The whole project comprises the construction of a 120m high con-
crete faced rockfill dam (CFRD), a 20km tunnel for water diversion
(finalized in 2005 with the financial support from the Government
of Italy), a pressurized piping system (from 3700 to 2700m asl) that
conveys a controlled water flow from the tunnel to the power plant
to be built in the Cochabamba Valley. The dam construction contract
(US$85M) has been awarded to an Italian-led consortium Consorcio
Hidroelectrico Misicunand (51% Grandi Lavori Fincosit), and the
financing is in place. The works for the hydroelectric power plant,
including complementary investments such as a substation and a
transmission line, estimated at about US$114.1M, will be financed
with a loan from the Inter-American Development Bank (IDB).
A total of $101M in IDB loans will be used to build the hydroelec-
tric component of the project, including electric power transmission
and related works, which will contribute up to 80MW of power to the
national grid. Construction of the dam on the Misicuni River, which
began in June 2009, is expected to cost $85M and is being financed
by the Government of Italy, the Prefecture of Cochabamba, Bolivia’s
National Treasury, and the Andean Development Corporation.
An additional $5M in IDB financing will be used to finance the
Misicuni Watershed Environmental Management Project. This
project will supplement and strengthen measures to mitigate the indi-
rect impacts of the Misicuni Project on the environment and popula-
tion in the main dam’s watershed.
Specifically, these funds will be used to reduce susceptibility to ero-
sion, enhance water management, and protect priority habitats in the
areas of the watershed most exposed to such risks. They will also be
used to promote soil and water conservation measures and sustain-
able, income-generating alternatives to subsistence farming within the
communities resettled due to construction of the dam.
The IDB financed project will also help the affected communities
to develop agricultural activities that will compensate for productive
losses associated with the construction of the main dam.
HUANZA, PERU
An Astaldi-led joint venture will build the 90MW Huanza hydro-
electric power plant in Peru. The contract includes execution of civil
works, construction of a roller compacted concrete (RCC) dam
(volume of 30,000m
3
), a 10km tunnel, powerhouse and switchyard.
Work is scheduled for completion in 29 months.
The JV comprising Astaldi (60%) and Peruvian construction com-
pany Graña y Montero (40%) was awarded the US$116M contract
by mining firm Minera Buenaventura .
The project has been in development for many years, with con-
struction on the project originally scheduled to start in July 2001
and operations were scheduled for October 2004. The project was
reportedly delayed however due to government restrictions favouring
natural gas power ventures.
CHACAYES, CHILE
Located in a dramatic setting in the Andes Mountains, the Chacayes
hydro project will be the first phase of Australian firm Pacific Hydro’s
new project development in the Cachapoal Valley. The delivery of
this run of river hydro project in October 2011 is critical to solving
the supply of capacity into the Chilean energy grid and the reduced
reliance on energy from fossil fuels.
Chacayes will generate 558GWh per annum of renewable energy
for Chile’s power market, which is enough electricity to supply twice
the demand of the city of Rancagua and will abate approximately
340,000 tonnes per annum of greenhouse gas pollution.
Chacayes was given environmental approval by COREMA VI
Region in July 2008. A few months later, in October 2008, Chilean
President Michelle Bachellet unveiled the first stone to mark the com-
mencement of advance works construction for the project.
In October 2008 the consortium Astaldi-Fe Grande, formed by
the Italian construction company Astaldi and the Chilean Fe Grande,
was awarded the contract for the construction of the hydro station
in an Engineering Procurement and Construction (EPC) agreement.
In May 2009 Pacific Hydro consolidated a joint venture with Astaldi
by which the Italian company entered in the property of Chacayes
with a 27% interest. By this strategic joint venture each party looks to
contribute their experience and knowledge, sharing the risks and the
Views of the Jirau project area (c) GDF SUEZ
WWW.WATERPOWERMAGAZINE.COM FEBRUARY 2010 17
SOUTH AMERICA
administration so the project can be finished successfully in time.
The success of the project is closely linked to the welfare of the
communities that surround the sites which is why the developers cre-
ated the community development fund, ‘Creciendo Juntos’ (Growing
Together) in the Cachapoal Valley. This initiative aims to improve
the quality of life of the communities during construction and opera-
tion of the power stations. Applications to the Community Funds are
developed and submitted by the communities themselves for projects
that improve the health, environment, education and welfare of their
communities.
As important as the Community Funds are for improving the infra-
structure and living environment of these communities, the great-
est economic benefit will come from employment. At the peak of
construction of the Chacayes project around 1200 direct and 3000
indirect jobs will be created in and around the valley.
PORCE III
Porce III is a hydro power project located in the Department of
Antioquia, Colombia, on the western side of the Cordillera Central.
Situated 47km northeast of the city of Medellín, capital of Antioquia,
it is shared by the municipalities of Amalfi, Guadalupe, Gómez Plata
and Anorí.
The 844MW project is scheduled for completion this year. The
project, on the Porce River, includes a 155m high CFRD dam with a
crest length of 426m. Ingetec, in joint venture with Klohn Crippen Co.
Ltd, undertook the detailed designs of the Porce III Dam for Empresas
Publicas de Medellin – E.S.P. (Medellin Public Utilities Company).
The dam will have a chute located in the left abutment with a dis-
charge capacity of 10,850m³/sec, controlled by four radial gates and
a flip bucket for energy dissipation. The project will also feature a
diversion tunnel, vertical shaft and headrace tunnels, tailrace tunnel,
Top and above left: Views of the Chacayes project site. Photographs courtesy
of Pacific Hydro; Right: Two views of the slab construction at Porce III
18 FEBRUARY 2010 INTERNATIONAL WATER POWER & DAM CONSTRUCTION
SOUTH AMERICA
and an underground powerhouse.
Financing for the project came from the Japan Bank for
International Cooperation (up to $200M) and the Inter-American
Development Bank, which also provided $200M. Turbines for the
project are supplied by Impsa Hydro, whose scope of supply included
four 211MW turbines with their respective spherical valves, speed
governors and draft tube gates; and hydro mechanical components
like intake gates, radial and outlet sliding gates, trashrake, steel lining,
embedded parts, penstocks, and draft tube’s steel lining.
Technical characteristics of the project, as indicated by Impsa
Hydro, are as follows:
U Turbines: 4 x 211MW Francis; rated head – 322m; rated speed
360rpm.
U Governors: Electro-hydraulic with PID control.
U Valves: Spherical; 2,500mm diameter; design pressure 374mca;
maximum flow 65.30m
3
/sec.
U Gates: gates for the inlet tunnel are 6462mm wide and
3400mm high; radial gate is 2471mm wide and 5000m high;
outlet sliding gates are 3471mm wide and 4200mm high.
U Penstocks: consist of a draft tube with three bifurcators that
form four branch lines. The initial 6100mm diameter narrows
down to 3100mm for connection to the speherical valve.
BAGUARI, BRAZIL
Baguari hydro power plant, located on the Doce River in the state of
Minas Gerais, Brazil, was inaugurated in October 2009. It is expected
to begin power supply early this year.
The project will supply power to the Brazilian grid through four
bulb-type generators. The plant will have an installed capacity of
140MW and its net capacity will be 80.2MW/h, sufficient to supply
power to 450,000 people. The power will be distributed through the
National Interconnected System.
The plant is being developed by UHE Baguari Consortium, which is
composed of Neoenergia (51%), Cemig Generation and Transmission
(34%) and Furnas (15%). The project required a $300M investment,
about 70% of which will be financed by Brazil’s National Bank of
Economic and Social Development. It is expected to be completed
by April 2010.
The reservoir of the project covers an area of 16km² and includes
the regions of Sobrália, Fernandes Tourinho and Alpercata on the
right shore and Governador Valadares and Periquito on the left
shore. It spreads 22km into Rio Doce.
The plant is being developed by the Consorcio Construtor Baguari
consortium, which is led by construction company Odebrecht and
includes Voith Hydro and Engevix. Civil construction work is being
handled by Odebrecht, while Voith Hydro supplied the complete
electro-mechanical equipment for the project, including four bulb
turbines that were completely manufactured in Brazil. The first tur-
bine was commissioned in September 2009, three months ahead of
schedule. The fourth machine is expected to become operational in
March 2010. The 35MW bulb turbines have runner diameters of
5.1m and include generators, control valves, SCADA automation and
excitation systems.
Generated electricity will be transmitted by a 230kV substation
and related network of 17 towers along 2.9km. The plant’s trans-
mission system will include the Baguari-Governador Valadares line
and the Baguari Mesquita line. The company must invest $13.5M
for installing transmission infrastructure. The consortium has already
pre-sold 77MW/h per annum to about 30 distributors.
Baguari is the first hydro project under the national Program for
the Acceleration of Growth (PAC). PAC was unveiled in 2007 and is
intended to achieve a sustainable GDP of 5%. It involves the country
investing BRL$500bn in infrastructure development, including roads,
airports, ports, power projects, houses, water and sewage systems.
The Baguari project was approved by ANEEL, the Brazilian elec-
tricity regulatory agency, in 2002. The previous environmental licence
was received in 2004 and power bidding began at the end of 2005.
The installation licence for the project was granted in 2006 and con-
struction began in May 2007.
The environmental licence was awarded by the State Environmental
Policy after the implementation of the Environmental Control Plan.
The plan includes 38 programmes. The consortium is also building a
fish ladder to facilitate transposition of the barrage.
The consortium is committed to developing a 34-acre reserve and
170ha of ecological corridors at the site.
The project will create 3400 direct and indirect jobs in the region.
Residents of low-lying areas that will be flooded because of the
project have been relocated to 70 new homes, which were built by
the company in Periquito.
Under the social and economic compensation programme, the com-
pany has started several infrastructure projects such as the construc-
tion of bridges, culverts, wells and a power distribution network.
COCA-CODA SINCLAIR, ECUADOR
The 1500MW Coca-Codo Sinclair project will be Ecuador’s largest
hydroelectric scheme once complete. Expected to cost US$2B, the
project will include construction of a 55m high CFRD dam and pow-
erhouse on the Coca River and 24km of tunnelling work.
Back in October last year, the government of Ecuador awarded
Chinese firm Sinohydro Corporation a contract to build the project
in the Amazon province of Napo.
The project is located in the Napo (El Chaco Canton) and
Sucumbios (Gonzalo Pizarro Canton) Provinces. Intake works are
located downstream of the Quijos and Salado Rivers confluence,
while the powerhouse is located at the ‘Codo Sinclair’.
The project’s intake works are made up of two (127m and 151m)
concrete spillways for river closure, trash racks, sand traps, sluice
gates, and tunnel connection siphon. The concrete-lined power tunnel
is 24.8km long, with diameter of 8.7m. Other important features of
the project include:
U Penstocks: two concrete pressure conduits from the compensating
reservoir to the powerhouse, steel-lined in its final section 1400m
long, diameter 5.8m and 5.2m, respectively.
U Powerhouse: 24x39.5x192m to house eight turbine generating
groups of 187MW each.
U Transformers cavern: 14x29x192m to house 24 single-phase trans-
formers of 68.3MVA each.
IWP& DC
Inauguration of the Baguari project. Photograph courtesy of Voith Hydro
Right: Constructing the access road, and laying the foundation stone at Coca-
Coda Sinclair (c) CocaSinclair
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20 FEBRUARY 2010 INTERNATIONAL WATER POWER & DAM CONSTRUCTION
TURBINES
Rainpower has developed its own Francis
turbines using a parametric approach and
is further expanding the range while also
preparing to launch new Pelton designs.
Report by Patrick Reynolds
Storming
ahead
R
AINPOWER has been making rapid, strident advances
in research and development for its new range of tur-
bines, initially low-to-medium head Francis, branded
‘Rainpower Storm’, and it is preparing to extend the para-
metrically-based analytical approach to high-head designs to estab-
lish a further range under, it is expected, another brand name.
The surge in R&D should also see the young, privately-held
Norwegian company get ready to launch a new Pelton range of tur-
bines in the coming months.
The sweeping approach to R&D arises from its seasoned engineers
employing ever-increasing computing power to establish an independent
portfolio by pursuing, usually from first principles, a parametric-based
approach to develop suites of turbine designs and models. They have
been determined to renew their own basic approach to analysis and
design, and so create a fresh offering in Francis and Pelton turbines.
A key aim of the fundamental approach is to use a parametric con-
cept where all the main dimensions for all components are based on
continuous function of Unit Speed (N11) and Unit Flow (Q11), and
so interpolate between models and more efficiently determine further,
intermediate designs.
Research into the parametric approach began immediately after
Rainpower was formed in midst of merger and acquisition activity
in the industry (See box: ‘Route to Rainpower’). The first test of a
parametrically-derived model took place within less than a year, in
September 2008. The first customer witness test was performed before
the end of the year. In total, four new Francis ‘Rainpower Storm’
models have been developed and tested, for the plants at Tjørhom in
Norway, Pankou and Maoergai in China, and Keban in Turkey.
While its experienced designers had the vision for the parametric con-
cept, setting out with the new business in a competitive market required
that they had focus, too, on continuing to utilise a local, 10-year technol-
ogy licence for existing high head technology, arising from a legacy rela-
tionship. They would be working on two distinct technological fronts,
one for high head and the other for the low-to-medium range.
LEGACY & LICENCE
While preparing to take their research on parametric concepts for
turbine design into high head turbines in the near future, Rainpower’s
engineers have been working more traditionally with Kværner-
originated technology where the licence applies – in Norway.
A number of renovation, modernisation and upgrade (RMU)
projects for high head plants are underway, such as at Svartisen, Hol
1, Hodnaberg and Rendalen. The work involves both refurbishing
existing units and supplying new equipment.
At Svartisen in the north of the country, the plant houses one of the
few large high head Francis units in the world, and considered to be
on the upper boundary for design technology, says Rainpower. The
single, vertical axis turbine was designed and fabricated by Kværner
and installed in the 1990s. It has a rated head of 543m, maximum net
head is 585m and rated speed of 333rpm to give a nameplate capacity
of 350MW. The runner is 4.4m diameter and weighs 36.5 tonnes.
Svartisen – turbine erosion
However, the turbine has suffered erosion from highly abrasive sedi-
ments, the flow to the plant being meltwater brought by a tunnel
network from a nearby glacier. The problem for the plant – its name
meaning ‘black ice’ – comes despite settlement caverns built within the
tunnels. Significant wear was found after eight years of operation.
The load was considered moderate compared to those experienced
in other regions, such as the Alps, Himalayas and Caucasus region
of Central Asia, but apart from some traditional Kværner features
that help in silt-laden flow – such as splitter vane runners, guide vane
stem seal construction and a free draft tube cone – there were few
anti-erosion measures. The main owner of the scheme, Statkraft, then
learned that after 10 years of operations the problem had reduced effi-
ciency of approx. 2.5%, as measured by the thermodynamic method.
Damage was found to guide vanes, turbine cover, runner and labyrinth
seals (wear rings). Plans for a major rehabilitation programme were
restricted to 14 weeks to limit the economic impact of the shutdown.
The plant, the last of the succession of relatively large hydro schemes in
the country, is critical to the grid and supplies in the region.
GE, having bought Kværner, signed a refurbishment contract
and the work was completed in 2003, including installation of new
guide vanes and sealing rings. It also coated covers and vanes with
an onsite-applied, tungsten carbide thermal spray (high velocity oxy
fuel – HVOF). The programme, however, only provided for minor
welding and grinding repairs to the runner. Efficiency and visual tests
in February 2005 some two years later confirmed the integrity of the
refurbished unit, although it wasn’t a long-term solution.