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HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
MAGAZINE OF ANDRITZ HYDRO  02-2017 ENGLISH

                                                            SANTO ANTÔNIO
                                                            An Amazonian Example
                                                            of Sustainable Hydropower
                                                            (page 22)

                                              HYDRONEWS                            No.30

                                                MEGATRENDS
                                                page 10

                                                Scenarios of the Future
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
2  Editorial
HYDRONEWS No. 30

                                                                                            © iStock.com/YiuCheung
  Dear
  Business Friends,
  Global demographic, technological and          activities of ANDRITZ HYDRO world-
  economic megatrends – such as urbani­­-        wide. A special highlight is the com-
  zation, climate change, and the rising         pletion of the hydropower plant Santo
  de­mand for electricity – will bring about     Antônio in the Amazon region of Brazil,
  major social and political changes             which has the world’s most power-
  over the coming decades to 2050. At            ful bulb turbines installed to date. The
  ANDRITZ HYDRO we consider this                 successful commissioning of this pro-
  “Scenario 2050” a motivating vision –          ject, which went ahead on schedule, yet
  finding tomorrow’s solutions today.            again underscores ANDRITZ HYDRO’s
                                                 high level of technical competence
     So far, the enormous potential of hydro­-   when it comes to low-head hydraulic
  power has not been fully exploited. In         power plants. Other examples include
  fact, it can still make a significant con-     the new contracts for electro-mechan-
  tribution to the redesign of global energy     ical equipment and hydraulic steelwork
  supply on the road to sustainability.          engineering for the Gouvães pumped
     At the moment the general conditions        storage power plant in Portugal, as well
  in the hydropower market are very chal-        as for Nam Theun I in Lao PDR, Yusufeli
  lenging indeed. With investment level-         in Turkey, and the John Day refurbish-
  ling off, the market appears to be rather      ment project in the USA.
  stagnating. However, in Europe and
  North America especially, further invest-        Each of these projects can be linked
  ments in the aging pool of facilities and      to at least one of the key megatrends         IMPRINT
  in the expansion of pumped storage             mentioned above. In view of this, we          Publisher: ANDRITZ HYDRO GmbH,
                                                                                               A-1120 Vienna, Eibesbrunnergasse 20, Austria
  hydropower are needed urgently to en-          are looking ahead to the coming devel-        Phone: +43 50805 0,
  sure future network stability. In South        opments in the hydropower market with         E-Mail: hydronews@andritz.com
                                                                                               Responsible for the content: Alexander Schwab
  America, Asia, and Africa, projects to         optimism.                                     Editorial Board: Clemens Mann, Bernhard
  harness vast hydro resources are under                                                       Mühlbachler, Jens Päutz, Hans Wolfhard
                                                                                               Project Manager: Judith Heimhilcher
  development.                                                                                 Editorial Assistance: Marie-Antoinette Sailer
                                                                                               Copyright: ANDRITZ HYDRO GmbH 2017,
                                                                                               All rights reserved.
    This latest edition of Hydro News pro-       With kind regards and our sincere thanks      Graphic design: A3 Werbeservice
                                                                                               Circulation: 17,500
  vides an overview of the various recent        for your continued trust                      Printed in: English

                                                                                               This issue includes links to videos on external
                                                                                               websites whose content we can’t influence.
                                                                                               The opinions expressed in the videos are person-
                                                                                               al views of the speaker, which must not match
                                                                                               with the positions of ANDRITZ HYDRO GmbH.
                                                                                               The initiator of the video is responsible for the
                    W. Semper                                 H. Heber                         accuracy of the content.
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
NEW

                                         INTERVIEW
    TOP STORY
                                         Santo Antônio


    Megatrends                           An Amazonian Example of
    Scenarios of the Future              Sustainable Hydropower

                           10      22

                Content
                02 EDITORIAL                           SITE REPORT
                04 LATEST NEWS                    20   Pembelik, Turkey
                                                  21   Reisseck II, Austria
                     NEW PROJECTS                 26   La Grande 3 & 4, Canada
                06   Tedzani III, Malawi          27   Generator Rehabilitation Program,
                07   Song Lo 6, Vietnam                Tasmania
                08   John Day Lock and Dam, USA
                09   Wettingen, Switzerland          TECHNOLOGY
                14   Yusufeli, Turkey             28 Concrete Volute Pumps
                15   Huinco and Matucana, Peru
                16   Nam Theun I, Lao PDR         30 HIGHLIGHTS
                17   Gouvães, Portugal
                18   Búrfell Extension, Iceland   36 EVENTS
                19   Manic-5, Canada

                                                  iPad App            Android App          Online magazine
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
Latest                                                               Vietnam
                                                                     Nam Na 1
                                                                        ANDRITZ HYDRO has received an order from Hung Hai

News
                                                                     Group of companies for the supply, supervision, and commis-
                                                                     sioning of the electro-mechanical equipment for the Nam Na 1
                                                                     hydropower plant in Vietnam.
                                                                        The hydropower plant is located on the Nam Na River, in the
                                                                     Lai Chau Province. With an installed capacity of 30 MW it will
                                                                     supply an annual average of 134 GWh of renewable energy to
Fiji                                                                 the national grid. The hydropower plant is scheduled to be put
Wailoa                                                               into commercial operation in 2018.
ANDRITZ HYDRO has received a further order for the replace-
ment of three spherical valves at the Wailoa hydropower plant
in Fiji, supplying up to 80 MW to the 150 MW grid on the main
Fijian island of Viti Levu. The order was placed by the Fijian
Electricity Authority.
   A previously ordered main inlet valve also manufactured by
ANDRITZ HYDRO was already installed with a station outage
of only four days in 2016.

Costa Rica
Rio Macho
  In December 2016, with the Final Accep­tance Certificate
(FAC) for unit five, Instituto Costarricense de Electricidad (ICE)
completed the good collaboration with ANDRITZ HYDRO                  Germany
during the Rio Macho project in Costa Rica.                          Langenprozelten
  After this last step, all five units of the Rio Macho hydro-         Since August 2016, the world’s most powerful single-phase
power plant are rehabilitated and successfully put into com-         hydropower motor generator is in operation at the pumped
mercial operation.                                                   storage power plant Langenprozelten in Germany. Dismantling
                                                                     and reassembling of the second machine will start in the sec-
                                                                     ond quarter of 2017 and should be completed until end of
                                                                     2017.
                                                                       With an output of 2 × 94 MVA, Langenprozelten is Deutsche
                                                                     Bahn’s primary peak-load power plant, providing sufficient
                                                                     electrical energy to sustain 50 InterCity trains travelling at
                                                                     200 km/h.
                                                                       An article with detailed information about the refurbishment
                                                                     of the first machine was published in Hydro News 29.
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
5  Latest News
HYDRONEWS No. 30

                                                                                  DR Congo
                                                                                  Mwadingusha
                                                                                  ANDRITZ HYDRO has been awarded in a consortium a con-
                                                                                  tract for the refurbishment of the existing Mwadingusha hydro-
                                                                                  power plant in the Katanga Province, DR Congo. The hydro-
                                                                                  power plant is equipped with six Francis units with a capacity
                                                                                  of 11.8 MW each.
                                                                                     The scope of supply for ANDRITZ HYDRO comprises re-
                                                                                  placement of four turbine units, generators, governors, inlet
                                                                                  valves, exciters, voltage regulations, and draft tube stop logs
                                                                                  including dismantling, erection, and commissioning.
  Angola
  Laúca
     After two years of work, the rotor of unit #1 at the Laúca hydro­-
  power plant in Angola has been successfully installed.
     This large project on the Kwanza River consists of two
  machine halls, for which ANDRITZ HYDRO is supplying elec­-
  tromechanical equipment for six 340 MW Francis turbines in-
  cluding generators, transformers, control and protection sys-
  tems as well as auxiliary equipment.

                                                                                  Rwanda
                                                                                  Rusumo Falls
                                                                                     In November 2016, ANDRITZ HYDRO signed a contract
                                                                                  for design, supply, instal­lation, and commissioning of electro-
                                                                                  mechanical equipment for the Rusumo Falls Hydroelectric
                                                                                  Project with Rusumo Power Company Ltd. The new power
                                                                                  station will be located at the border between Rwanda and
                                                                                  Tanzania. The project is a joint development of three east
                                                                  © Rune Freyer

                                                                                  African nations Burundi, Rwanda and Tanzania.
                                                                                     ANDRITZ HYDRO’s scope of supply comprises the deliv-
                                                                                  ery of three 27,5 MW vertical Kaplan turbines and its auxilia-
                                                                                  ries, generators, EPS, powerhouse cranes, draft tube gates
                                                                                  and stop logs as well as the control and protection system of
  Uganda                                                                          the whole power plant. Completion of the project is planned
  Nkusi                                                                           for the end of 2019.
    In November 2016, ANDRITZ HYDRO received a contract for
  the complete electro-mechanical equipment for the new
  9.6 MW Nkusi hydropower plant in Uganda.
    The customer requested a complete “from water-to-wire”
  package to ensure a high quality delivery with minimal in-
  terphases and simplified logistics. The scope of supply for
  ANDRITZ HYDRO consists of engineering, two identical hor-
  izontal Francis turbines, generators, and all equipment and
  installation up to the 33 kV switchgear. Transportation up
  to Nkusi site, supervision of installation, and commissioning
  complete the contractual scope of supply. The HPP Nkusi
  project should be completed mid-2018.
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
6  New Project
HYDRONEWS No. 30

 Tedzani III
  by Walter Schwarz
  walter.schwarz@andritz.com

                                                                                                                

  Shire River

     Malawi – The Elec­tri­city Supply Cor­          All installation works will be done by      Machine hall before rehabilitation
  po­ra­
       tion of Malawi Ltd (ESCOM) and              local ESCOM staff under supervision of
  ANDRITZ HYDRO signed a contract for              ANDRITZ HYDRO. Specialist training in         Sys­tem (GCMS), which is interfacing
  rehabilitation, modernization and upgra­         Malawi as well as in Austria also forms       with all ESCOM hydropower plants has
  ding of the Tedzani III hydropower sta-          part of the contract. A project team from     been awarded to ANDRITZ HYDRO.
  tion in March 2016.                              ANDRITZ HYDRO Austria is commit­         -    As such it underlines the technological
                                                   ted to complete the project within less       know-how and confirms the high pro-
     HPP Tedzani III is located in southern        than 20 months, so the Tedzani III            fessionalism of ANDRITZ HYDRO em­
  Malawi, about 100 km northwest of the            hydropower plant will be put back into        ployees.
  city of Blantrye – Malawi’s center of fi-        operation by the end of 2017.
  nance and commerce and the second
  largest city in the country. The majority          Following the projects HPP Nukla A,          TECHNICAL DATA
  of the country’s hydropower stations are         HPP Tedzani I and II and HPP Wovwe,
                                                                                                  Output                     2 × 25.6   MW
  located on the Shire River; such as HPPs         the order for HPP Tedzani III is the
                                                                                                  Head                         44.80    m
  Nkula A and Nukla B, HPPs Tedzani I, II          fourth contract for ANDRITZ HYDRO
                                                                                                  Speed                       187.50    rpm
  and III, and HPP Kapichira. Impressively,        in Malawi. Recently, a further contract
                                                                                                  Runner diameter              2,950    mm
  more than 90% of Malawi’s power gen-             for a Generation Control and ­Mo­ni­tor­ing
  eration comes from hydropower.

     ESCOM will execute the Tedzani III
  project together with ANDRITZ HYDRO
  as the original equipment manufactu­rer
                                                                                                                                          © iStock.com/christophe_cerisier

  (OEM). The existing units were first com­mis­-
  sioned in 1995–1996. ANDRITZ HYDRO
  will be responsible for design, manufac-
  turing, supply, installation, and commis-
  sioning of a completely new con­trol and
  SCADA system, new excitation, protec-
  tion and synchronization systems, as
  well as specifically defined repair and re-
  placement works on turbines and gen-
  erators.
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
7  New Project
HYDRONEWS No. 30

      Song Lo 6
      by Xu Wenye
      xu.wenye@andritz.com

  Nearby HPP Song Lo 6 site

     Vietnam – In 2016, ANDRITZ HYDRO           sion and support during commissioning.
  received a contract for the deliv-            ANDRITZ HYDRO has to meet a narrow
  ery of electro-mechanical equipment           time schedule for design and delivery;
  for the Song Lo 6 hydropower plant            19 months for unit #1, 20 months for
  from Xuan Thien Ha Giang Company              unit #2 and 21 months for unit #3 were
  Limited – a civil works company enlarg-       agreed upon.
  ing its field of activities into hydropower
  and developing several projects in Viet­        On the occasion of the groundbreak-
  nam. Following the order for HPP Hang         ing ceremony of HPP Song Lo 6, which
  Dong A in 2012, this is the second pro­       took place in September 2015, the in-           TECHNICAL DATA
  ject awarded to ANDRITZ HYDRO by              vestor made a charitable donation to
                                                                                                Output                 3 × 20 MW
  this customer.                                the Son Ca Kindergarten in the Vi Xuyen
                                                                                                Voltage                 10.5 kV
                                                District, Ha Giang Province and the Vinh
                                                                                                Head                    10.5 m
    HPP Song Lo 6 is located on the Lo          Hao and Yen Thuan communes.
                                                                                                Speed                 107.14 rpm
  River in the two Vietnamese provinces of
                                                                                                Runner diameter        5,500 mm
  Ha Giang and Tuyen Quang. The hydro-            After start of commercial operation in        Av. annual production    242 GWh
  power plant is designed with an installed     2018, HPP Song Lo 6 will significantly
  capacity of 60 MW. Once completed             contribute to the security of national ener­-
  and synchronized with the national grid,      gy supplies, ensure water resources for
  the facility is expected to produce about     agricultural production and boost socio-
  242 GWh of electrical energy per year.        economic development in the southern
                                                                                                          
                                                provinces.
    For the newly built run-of-river plant
  ANDRITZ HYDRO will deliver three
  20 MW turbines with oil-free hubs and
  accessory equipment. Further parts of
  the contract are the installation supervi-
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
8  New Project
HYDRONEWS No. 30

                            John Day
                            Lock and Dam
                            by Jack Heaton
                            jack.heaton@andritz.com
  © iStock.com/nesneJkraM

  View of the dam

    USA – In June 2016, the US Army                   erators were originally provided by           turbine replacement and unit rehabili-
  Corps of Engineers, Portland District,              ANDRITZ HYDRO’s predecessor com-              tation project for the same customer.
  awarded a contract to ANDRITZ HYDRO                 panies.                                       Should the fifth unit option be exer-
  for the upgrade of the Kaplan turbine                                                             cised, the entire project is expected to
  hubs of the John Day Lock and Dam hy-                 After a half century of operation, some     be completed by 2021.
  dropower station, in the northwest of               of the turbines have passed or are near-
  the United States of America.                       ing the end of their design lives, espe-       TECHNICAL DATA
                                                      cially the hub internals. This contract in-
                                                                                                     Output               16 × 135   MW
     With a total installed capacity of               cludes work on four units and a fifth unit
                                                                                                     Voltage                  13.8   kV
  2,160 MW, HPP John Day Lock and                     as an option. ANDRITZ HYDRO will dis-
                                                                                                     Head                       30   m
  Dam is the fifth largest hydropower facil-          assemble the entire turbine-generator
                                                                                                     Speed                      90   rpm
  ity in the United States. It is fed by Lake         unit, repair the Kaplan runner on-site,        Runner Diameter        7,925    mm
  Umatilla, a reservoir running 123 km up             replace as-needed wearing compo-               Av. annual production 8,418     GWh
  to the foot of HPP McNary Dam.                      nents, install new runner hub internals,
                                                      refurbish as-required mechanical com-
      Primary construction works of the               ponents off-site, reassemble the unit,
  run-of-river power plant began in 1958              and perform testing and commissioning
  and were completed in 1971, at the                  after the installation. Following the re-
  time making it the newest dam on the                pair, all the runners under the contract
  lower Columbia River with the highest               will function as double-regulated Kaplan          
  lift (34 m) among all locks in the United           runners.
  States. The powerhouse is equipped
  with a total of 16 units, each with an out­-          Prior to this award, ANDRITZ HYDRO
  put of 135 MW. All turbines and gen-                successfully completed the Hills Creek
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
9  New Project
HYDRONEWS No. 30

 Wettingen
  by Christoph Bütikofer
  christoph.buetikofer@andritz.com

    Switzerland – A contract for the re-
  furbishment and revision of the electro-
  mechanical equipment at the Wettingen
  hydropower plant in the Swiss canton
  ­
  of Aargau was awarded to ANDRITZ
  HYDRO in June 2016.
                                                  © ewz

    Built in the years 1930–1933, HPP
  Wettingen utilizes the waters of the river
  Limmat between the upstream power              Birdview of the powerhouse and dam area
  plant of Dietikon and the downstream
  facility of Baden-Aue.                         tion of new oil mist extractors, and the
                                                 revision, modification and replacement
    Under the terms of the contract awar­        of various pumps, bearings and instru-
  ded by Elektrizitätswerk Zürich (ewz), the     ments. Due to the narrow dimensions
  public energy utility of the City of Zurich,   of the installation, the new exciter had
  ANDRITZ HYDRO’s scope of sup­­­ply in-         to be specially manufactured and opti-
  cludes the revision and refurbishment of       mized for use with the generator.
  essential components of the three units.
  In addition, ANDRITZ HYDRO will con-             Having a single-source supplier for
  duct ­hydraulic model tests for the de-        the entire electro-mechanical e ­ quipment
  sign of the new turbine blades, which          has a lot of advantages. The ability to
  are expected to raise the annual output        leverage synergies in terms of order pro-
  of the facility by 4%.                         cessing, installation, revision, and com-
                                                 missioning means less coordination ef-       Powerhouse
     Working in close collaboration with         fort and lower costs for the customer.
  ewz to identify relevant operating con-                                                      TECHNICAL DATA
  ditions as accurately as possible, the            The handover of the model test results
                                                                                               Output      3 × 8.5 MW / 3 × 10   MVA
  turbines were examined for their op-           is scheduled for December 2016. On-
                                                                                               Voltage                     6.4   kV
  timization potential and specific solu-        site refurbishment work will start with
                                                                                               Head                  21.5 – 23   m
  tions developed. ewz decided in fa-            the first unit in September 2017 and
                                                                                               Speed                    214.3    rpm
  vour of a solution that reduces operating      is scheduled to be completed by April
                                                                                               Runner diameter          2,835    mm
  costs while maximizing the availabil-          2018. The other units will be refurbished     Av. annual production      135    GWh
  ity of the units and ensuring their safe       successively at one year intervals, which
  operation. Based on an initial analysis        means the last unit is scheduled to be
  of the turbine shafts’ remaining useful        handed over to the customer for com-
  life, it was decided to replace them as        mercial operation in April 2020.
  well and to optimize the shaft coupling
  and gasket construction at the same              This project not only reinforces a
  time. Essentially, the rehabilitation of the   long-standing business partnership with
  generators comprises control, dry-ice          ewz, but also strengthens ANDRITZ                         
  cleaning, and revision of the stators and      HYDRO’s position as a single-source
  rotors as well as the revision of the poles    supplier for service and refurbishment
  at the workshop in Kriens, the installa-       projects in Switzerland.
HYDRONEWS - page 10 MEGATRENDS - No.30 - ANDRITZ GROUP
10  Top Story
HYDRONEWS No. 30

                                                  A Scenario of the Future
                                                  by Alexander Schwab
                                                  alexander.schwab@andritz.com

                               by Alexander Schwab             and Peter Stettner
                               alexander.schwab@andritz.com    peter.stettner@andritz.com

                                 We are living in a changing world, a rapidly
                               changing world. Even though these changes are
                               marked over years or even decades, they are long-
                               term and fundamental. They are shaping the future
                               of all nations, countries, social structures, and of
                               every individual. And they are happening today.

      MEGATRENDS
                   SCENARIOS
                  OF THE FUTURE

  © Pictures from iStock.com
11  Top Story
HYDRONEWS No. 30

       POPULATION

                               7.5 billionAS OF TODAY

                                10 billion   AS OF 2050

      The biggest changes are encompassed in so-called mega-           it will no longer make economic sense to harness fossil fu-
  ­trends. The most important of these megatrends are urbaniza-        els. Regardless of this, existing fossil reserves will still be used
   tion, shifts in economic power, demographic change, climate         extensively causing additional increases in greenhouse gas
   change, resource stress, and technology development. It is          emissions, resulting in global warming. The goal reached at
   in this context that people are discussing a “Scenario 2050”.       the climate summit in Paris at the end of 2015 to limit global
                                                                       warming to less than 2°C will only be achieved with extreme
     Forecasts that the global population will be about 10 bil-        efforts. Integrated solutions that optimally combine renewable
  lion people in 2050 mean that energy demands will have at            energies are already in demand today and will be even more
  least doubled by then when compared with today. This situa-          so in the future.
  tion poses a challenge for politics, economics, and research.
  It’s a challenge that requires serious consideration today.          Demographic and social developments
                                                                          Regional differences in demographic development could not
     With global megatrends shaping our present, answers to            be more dramatic. In the future, the majority of the world's
  the questions of the future are needed today. Upon examina-          population will be over 65 years old, especially in the indus-
  tion of changes in demographics, economics, and energy pol-          trialized nations. On the other hand, the population of Africa
  icy, it quickly becomes clear that we are heading toward a           will probably have doubled by 2050, while the population of
  challenging future.                                                  Europe will shrink. By this time, individual countries in Africa
                                                                       could have more inhabitants than the USA has today.
  Urbanization
     In 2050, half of the world’s population will live in major ur-    Overall, the world’s population increases
  ban centers and there will likely be at least 40 cities with more
                                                                       by about 150 people every minute.
  than 10 million inhabitants. Megacities such as New York, São
  Paulo, Cairo, and Beijing will have to make billions of dollars of
  infrastructure investment within the next 10 years. Urban tech-
  nologies to keep growing cities viable are racing ahead. An ex-
  ample is the emergence of “smart cities” in which inhabitants
  can interact intelligently and efficiently with their urban envi-
  ronment. But despite increasing energy efficiency, the energy
  demands of such megacities will be enormously high.

  Currently cities cover just 0.5% of the
  earth’s surface. However, they consume
  some 75% of global resources.

  Climate change and resource scarcity
    Population increases, urbanization, and increasing en-
  ergy demand will ensure that conventional energy sources
  will reach their limits in the near future. With respect to cur-
  rent consumption data, it appears that in just a few decades
12  Top Story
HYDRONEWS No. 30

  Purchasing Power Parity of the G20 nations in 2050

                                                                                                                                                   61 000
  (values in US$bn)                                                                                          61,000

                                                                                   8)

                                                                                                         42 000
  41 000

                                                               11)
                                                                          10)
                                  19)
                                                                 13)
                                                                           18)
                                                                                  14)
                                                                                                                           17)    7)

                                                                                                 15)
                                                                                 16)
                                                                                        12)
                    6)

                                                                     9)                                                     20)

                                                                                                                      4)

                                          5)
  3)                                                                                                    2)                                        1)

                                                               actual 2014                predicted forecast 2050

  * G20 nations according to GDP at PPP (Purchasing Power Parity) ranking: 1) China, 2) India, 3) USA, 4) Indonesia, 5) Brazil, 6) Mexico,
  7) Japan, 8) Russia, 9) Nigeria, 10) Germany, 11) United Kingdom, 12) Saudi Arabia, 13) France, 14) Turkey, 15) Pakistan, 16) Egypt,
  17) South Korea, 18) Italy, 19) Canada and 20) Philippines.
                                                                                    Based on the study “The World in 2050” by PWC, dated February 2015

  Shift in global economic power                                                 Today’s frontier markets will become
    The way individual national economies are classified will
                                                                                 future emerging markets. Today’s
  become less relevant in the future. Increasing incomes and
  closing wage gaps will lead to a growing global middle class.                  emer­ging markets will become future
  Markets grow unpredictably, however. For example, China and                    core markets.
  Mexico have grown exceptionally over the last years, whereas
  countries in Europe have seen their economies stagnate. To                     Technological breakthrough
  reflect these changes we have to adjust our view of the global                    Technology development is an underestimated force today,
  economy. Some markets will become more important due to                        but will gain more and more importance as a major compo-
  the value chain and become core markets for global busi-                       nent in the re-shaping of the future economy. The time it takes
  nesses. Developed countries will benefit from a more diverse                   from invention to breakthrough to mass application is getting
  business culture, skilled talent will be spread multinationally,               shorter and shorter. For example, it took 76 years for the tele-
  education and health care will become more important indi-                     phone to reach half the population, the smart phone took only
  cators.                                                                        about a decade.

                                                                                    Digitalization has had a profound impact not only on society,
                                                                                 but also on the economy. Today the value created by tech-
                                                                                 nology, especially internet-based technology, is extraordinary.
                                                                                 The importance of e-commerce, interconnectivity and digital
                                                                                 brands is crucial for industry. Social media, mobile applica-
                                                                                 tions and cloud services to meet the customers’ needs are
                                                                                 already vital parts of future strategy to succeed in the digital
                                                                                 age.

                                                                                 The role of hydropower in the future
                                                                                    In a time when producing fossil resources is becoming less
                                                                                 economical and energy demands continue to climb, a com-
                                                                                 promise between the needs of the present and responsibil-
                                                                                 ity to future generations has to be found. Hydropower is the
                                                                                 most proven and best-developed form of renewable electric-
                                                                                 ity generation. Increasing awareness of global climate change
13  Top Story
HYDRONEWS No. 30

  and sustainable electricity generation, social responsibility on       Hydropower is sustainable, renewable, and flexible, has
  the part of politics, as well as an increasingly critical attitude   many benefits and great potential. It is the answer to many of
  toward CO2 emissions from fossil fuels, will cause demand for        the questions posed for the future. Constant research and de-
  hydropower to increase in the coming years.                          velopment will ensure that hydropower remains the most im-
                                                                       portant renewable energy resource, as it is today.
    Currently, approximately 16% of the world's electrical en-
  ergy comes from hydropower. In the future, the assumption is           The traditional approach to the operation of hydropower
  that the enormous and increasing demand for electricity will         facilities has to be reconsidered though. New demands are
  be fulfilled by those energy concepts that best combine the          fast response times, frequent load changes, and extended op-
  various resources available. Hydropower is trend-setting here,       erational ranges. Anticipated future requirements include calls
  for it does not end with power generation. Instead, it offers a      for frequency regulation by run-of-river power plants, mini
  wide spectrum of applications, including energy storage for          pumped storage for balancing small wind farms, ocean energy
  grid stability and peak load coverage.                               applications combined with off-shore wind farms, small hydro
                                                                       to balance the impact of clouds passing over a solar plant, as
                                                                       well as upgrading all existing power plants to new standards
     technically                                                       and network codes, and linking them with the state-of-the-art
     feasible                  16,000                                  automation systems of the digital world.
     hydropower                  TWh
     potential                                                            For ANDRITZ HYDRO, the changing future is a big motiva-
                                                                       tion to find tomorrow’s solutions today. The immense potential
                                                                       of hydropower has by no means been fully exploited – it can
                            25% (4,000 TWh)                            still make a significant contribution to the redesigned and sus-
                            exploited as per today                     tainable future energy supply system.

  “From water-to-wire” 2050

              
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                                             
14  New Project
HYDRONEWS No. 30
   © Nejdet Duzen/Shutterstock.com

  Çoruh River, near Deriner Dam

 Yusufeli                                     a rated discharge of 107 m3/s. The dam
                                              is of double-curvature type and with a
                                              height of 270 m from its foundation it will
  by Özkan Yilmaz                             be Turkey’s highest and the third highest
  oezkan.yilmaz@andritz.com                   dam of this kind worldwide.
                                                                                                             

     Turkey – ANDRITZ HYDRO received a          ANDRITZ HYDRO’s contractual scope
  second order within 12 months for the       of supply comprises design, supply, in-
  Yusufeli hydropower project in Turkey       stallation, and commissioning of three
  in September 2016. The actual order         generating units, each with a rated out-
  for three generating units and relat-       put of 186 MW, main power transform-          turbine auxiliary systems as well as main
  ed equipment follows the recent con-        ers, 380 kV switchyard equipment (AIS         inlet valves will be supplied by ANDRITZ
  tract for supplying the intake structure,   and GIS), and all relevant control, meas­     HYDRO China.
  as well as the penstock and gates (see      uring, and protection equipment.
  Hydro News 29).                                                                             The start of commercial operation
                                                With the focus on providing premium         is scheduled for the third quarter of
    The impoundment facility is located on    quality under challenging circumstances,      2019. This contract strengthens again
  the Çoruh River in northeastern Turkey,     handing over of the units is planned within   ANDRITZ HYDRO’s leading position in
  upstream of HPP Borçka, HPP Muratli,        33 months after commencement of the           the Turkish hydropower market.
  and HPP Deriner. As with these plants,      works. ANDRITZ HYDRO takes ad-
  HPP Yusufeli is also owned by General       vantage of its international structure,        TECHNICAL DATA
  Directorate of State Hydraulic Works        so several ANDRITZ HYDRO compa-                Output                3 × 186   MW
  (DSI), a company which has already          nies in close co-operation are contribut-                            3 × 203   MVA
  been working with ANDRITZ HYDRO on          ing with supplies to the plant. ANDRITZ        Head                      191   m
  these projects, as well as HPP Ermenek      HYDRO Turkey will provide major equip­-        Speed                     214   rpm
  and HPP Ilısu, which is currently under     ment for the electrical power system and       Runner diameter        3,500    mm
  construction.                               installation services. ANDRITZ HYDRO           Av. annual production 1,888     GWh
                                              Austria will supply the turbine runners
    The new Yusufeli hydropower plant         and governors. The generator and au-
  will have a total installed capacity of     tomation system will be provided from
  558 MW with a rated head of 191 m and       ANDRITZ HYDRO India, whereas the
15  New Project
HYDRONEWS No. 30

  Huinco &
  Matucana
  by Peter Gnos
  peter.gnos@andritz.com

  and Andreas Kronsteiner
  andreas.kronsteiner@andritz.com

     Peru – In June 2016, ENEL Gene­         -
  ración Perú S.A.A. and ANDRITZ
  HYDRO signed a con­         tract for reha-
  bilitation works at the two Peru­       vian
  hydro­  power plants Huinco and Ma­        - Powerhouse of HPP Matucana
  tu­­­cana. With a capacity of 1,283.8 MW
  (739.4 MW thereof produced by hy­dro­-          HPP Matucana is located in the high-   vision, electrical tests and commission-
  power) Edegel S.A.A. is the largest pri- lands of Lima and is fed by the Rímac         ing. At present, the engineering process
  vate electric generation company in Peru. River and the Yuracmayo dam. The run-        is finished and approved by the client
                                               of-river power plant began its power      and the manufacturing of components
     Huinco and Matucana hydropower generation in 1972. It has an installed              in the ANDRITZ HYDRO workshop in
  plants are located in the province of capacity of 137 MW and counts two                Araraquara, Brazil, has already started.
  Hua­rochirí, about 70 km east of Lima. double horizontal Pelton turbines. The          All works on-site will be carried out be-
  After continuously operation of more intake is connected to the plant via a            tween 2017 and 2019.
  than 40 years, the rehabilitation of two 20 km long tunnel. The reservoir tank at
  generators at HPP Huinco and one gen- Matucana is made up of two 500 m long
  erator at HPP Matucana is necessary.         underground chambers, with a capac-
                                               ity of 30,000 m3 each. Thanks to these
     The Huinco storage power plant is the chambers, the plant’s nominal capacity
  result of an electric expansion plan in- could last up to three hours, even during
  tended to adequately meet the future dry periods.
  electricity demand in the 1920s, using
  the waters of the Rímac and Santa               Both projects will be carried out by
  Eulalia Rivers. After damming up the ANDRITZ HYDRO Peru and Austria.                                

  lakes on the Santa Eulalia River, diver­ The scope of delivery comprises new
  ting the waters of the Rímac River complete stator windings for two units
  to the Santa Eulalia River, and build- at HPP Huinco a new stator for HPP
  ing the Callahuanca, Moyopampa, and Matucana, as well as installation, super-          Machine hall of HPP Huinco
  Huampaní hydropower plants, a trans-
  Andean tunnel was built in the early           TECHNICAL DATA
  1960s to provide sufficient water for          Huinco
  HPP Huinco. HPP Huinco has an in-              Output                    265 MW
  stalled capacity of almost 265 MW. The         Voltage                  12.5 kV
  first of the four horizontal Pelton turbines   Head                    1,245 m
  was commissioned in 1964. Currently, it        Speed                     514 rpm
  has the highest head used to produce           Stator diameter         3,300 mm
  hydroelectric energy in Peru (1,293 m).
  HPP Huinco was built in a cavern, due          Matucana
  to the river course of the Santa Eulalia,      Output                    137 MW
  which runs near HPP Huinco through a           Voltage                  12.5  kV
  narrow gorge and enforced the construc-        Speed                     450  rpm
                                                 Stator diameter         3,400 mm
  tion of an underground powerhouse.
16  New Project
HYDRONEWS No. 30

     Nam Theun I
      by Oliver Gielesberger
      oliver.gielesberger@andritz.com

  Region close to HPP Nam Theun I

    Lao PDR – In August 2016, ANDRITZ         its confluence with the Mekong River. It    operation is scheduled for the end of
  HYDRO received an order from Phone­         is the last plant in the Nam Theun-Nam      2020.
  sack Group (PSG) to supply electro-me-      Kading Hydropower Cascade. The in-
  chanical equip­­ment for the Nam Theun 1    flow reaching the Nam Theun I reservoir       Following HPP Huay Ho, HPP Nam
  hydropower project in Lao PDR.              is affected by the existing upstream hy-    Theun II, HPP Theun Hinboun and HPP
                                              dropower plants including HPP Theun         Nam Lik, this is a further private hydro-
     Lao PDR is a landlocked and moun-        Hinboun, HPP Theun Hinboun Expan­           power plant in Vietnam to be equipped
  tainous country with borders to Myan­       sion, and HPP Nam Theun II. ANDRITZ         with the state-of-the-art equipment of
  mar, China, Vietnam, Cambodia, and          HYDRO completes its supply of electro-      ANDRITZ HYDRO.
  Thai­land. The Mekong River acts as a       mechanical equipment in this cascade
  major part of the Laotian border and        by supplying the last plant on the river.    TECHNICAL DATA
  also represents a large part of the coun-
                                                                                           Output 2 × 265 MW / 1 × 132.5   MW
  try’s enormous hydropower potential. By       The hydropower plant houses three
                                                                                           Head                      140   m
  developing these resources the Laotian      units with a total output of about
                                                                                           Speed 2 × 187.5 rpm / 1 × 250   rpm
  government intends to transform the         662 MW. The scope of supply for
                                                                                           Runner diameter     2 × 4,450   mm
  country into “the Battery of Southeast      ANDRITZ HYDRO comprises design,
                                                                                                               1 × 3,250   mm
  Asia”.                                      manufacturing and supply of the com-
                                              plete electro-mechanical equipment, in-
     HPP Nam Theun I aims to contribute       cluding three vertical Francis turbines,
  to the Lao PDR’s development by creat-      model test, generators, governors, and
  ing revenues from the export of electric-   automation system. The scope also in­-
  ity, as well as covering future increases   cludes the main transformer, medium-
  in domestic demand.                         and low-voltage switchgears, power and
                                              control cables, fire protection system,
    The Nam Theun I hydropower stor-          500 kV GIS, the main inlet valve, me-                     
  age scheme is located on the Nam            chanical auxiliaries, installation super-
  Kading River, about 33 km upstream of       vision, and commissioning. Commercial
17  New Project
HYDRONEWS No. 30

  Gouvães                                    smaller size, this scheme will ideally
                                             complement volatile electricity genera-
                                             tion from wind power, which has been
                                                                                           and reliability will be met in an optimum
                                                                                           way.

  by Franco Michele Bennati                  growing significantly in recent years.          This is the third large contract between
  francomichele.bennati@andritz.com
                                             Additionally, the project will have a very    Iberdrola Generación and ANDRITZ
                                             positive impact on the employment situ-       HYDRO on the Iberian Peninsula, after
     Portugal – ANDRITZ HYDRO has            ation in the region.                          having received the contracts for equip-
  been contracted by the Spanish ener-                                                     ment deliveries for the San Pedro II hy-
  gy utility Iberdrola Generación S.A.U.       The scope of supply for ANDRITZ             dropower plant in 2011 and for modern-
  to supply the electro-mechanical equip-    HYDRO comprises design, manufactur-           ization of the Aldeadávila hydropower
  ment and the penstock for the new          ing, delivery, and installation supervision   plant in 2014.
  pumped storage power plant Gouvães         for the reversible pump turbines, motor
  in Portugal.                               generators, and electrical power sys-
                                             tems. Also part of the contract are de-        TECHNICAL DATA
     With four 220 MW pump turbines          sign, manufacturing, supply, and com-
                                                                                            Output                      880   MW
  PSPP Gouvães will be the heart of the      plete installation of a penstock including
                                                                                            Head                        660   m
  Alto Támega hydropower scheme, con-        three bifurcators with a total weight of
                                                                                            Speed                       600   rpm
  sisting of three hydropower plants. The    about 12,000 tons, an average diame-
                                                                                            Runner diameter           3,500   mm
  scheme will be built on the Támega         ter of about 5,400 mm and a length of
  River in northern Portugal, close to the   2.5 km.
  seaport of Porto. Together with HPP
  Alto Támega and HPP Daivoes, the             With a net head of about 660 m, to
  Gouvães pumped storage power plant         provide a safe basis for the design of
  will produce in total 1,468 GWh of elec-   the technically outstanding high head
  trical energy. PSPP Gouvães will cover     pump turbines extensive research and                     
  the need for peak-load energy and pro-     model testing activities have been per-
  vide fast-responding regulating power.     formed in ANDRITZ HYDRO’s test lab-
  Together with the baseload generation      oratory. Thus, the high requirements of
  from the other two power stations of       Iberdrola Generación regarding feasibility

  Penstock area
18  New Project
HYDRONEWS No. 30

                                                                                                                        
   © iStock.com/philotera

  Búrfell mountain

 Búrfell                                        will be installed in a separate under-
                                                ground powerhouse. This new unit will
                                                                                                  With an overall project duration of
                                                                                               26 months from commencement, the

 Extension                                      increase the total capacity of the com-
                                                bined Búrfell hydropower stations by
                                                300 GWh per year.
                                                                                               delivery and completion dates of this
                                                                                               project are tight. Hence, the project
                                                                                               management requires high performance
  by Michael Stadler                                                                           engineering to place purchasing orders
  michael.stadler@andritz.com
                                                   ANDRITZ HYDRO’s scope of sup-               in due time, as well as a clear focus on
                                                ply comprises the delivery and installa-       the interface management, and close
     Iceland – Icelandic utility Landsvirkjun   tion of the turbine and its auxiliaries, the   monitoring of sub-suppliers.
  has a­ war­ded a contract to ANDRITZ          generator, the electrical power system,
  HYDRO for the supply of electro-mecha­        MV and LV systems, a fire extinguish-            The Búrfell Extension hydropower
  nical equipment and control systems for       ing system, the powerhouse cranes, the         station is expected to start operation
  the Búrfell Extension hydropower station      auxiliary systems, as well as the con-         in 2018.
  in Iceland.                                   trol and protection system of the whole
                                                power plant.                                    TECHNICAL DATA
     Located about 130 km east of Rey­
                                                                                                Búrfell
  k­javík, the existing Búrfell hydropower         In June 2016, the first important mile-
                                                                                                Output                   6 × 45   MW
  plant has been operating continu­   ously     stone – the model acceptance test – was         Voltage                   13.8    kV
  since 1969. It is equipped with six Fran­     performed together with the customer in         Head                       115    m
  cis units with a total output of 270 MW,      the ANDRITZ HYDRO hydraulic labo-               Speed                      300    rpm
  providing 2,300 GWh of electrical en-         ratory in Canada. Existing components           Runner diameter          2,460    mm
  ergy annually to the national grid. Until     from various developed projects were            Av. Annual production    2,300    GWh
  the inauguration of HPP Kárahnjúkar           used to build a Búrfell Extension model.
  in 2007, it was the largest hydropower        During the witness tests the combina-           Búrfell Extension
  plant in the country.                         tion of those components could be suc-          Output                1 × 100 MW
                                                cessfully verified. The use of existing hy-     Voltage                13.80 kV
    The new HPP Búrfell Extension pro­          draulic components made it possible to          Head                      119 m
  ject is located about 2 km from HPP           start the inquiry process of components         Speed                 230.70 rpm
                                                                                                Runner diameter        3,190 mm
  Búrfell at the foot of the Sámsstaðaklif      with a long delivery lead time directly af-
                                                                                                Av. Annual production     300 GWh
  depression. A 100 MW Francis turbine          ter the project commencement.
19  New Project
HYDRONEWS No. 30

  View of the dam

  Manic-5                                     ings will be supplied to replace the old
                                              bronze bushings. The project, including
                                              all engineering activities, is being man-
                                                                                               Following commissioning of the last
                                                                                             two units completion of the contract is
                                                                                             scheduled for October 2019.
  by Francoys Gauthier                        aged by ANDRITZ HYDRO Canada.
  francoys.gauthier@andritz.com
                                                                                              TECHNICAL DATA
                                                 Works on the first two units at site will
                                                                                              Output                 1,528 MW
    Canada – In June 2016, ANDRITZ            start in March 2017. A very challenging         Head                     142 m
  HYDRO received a contract from Hydro-       aspect of the project is that the valves        Valve nominal pressure 15.2 bars
  Québec for the rehabilitation of turbine    cannot be removed from site or brought          Valve nominal diameter 3,658 mm
  spherical inlet valves at the Manic-5       to a workshop for refurbishment works.
  hydropower plant in the administrative      The site set-up does not allow it as there
  region of Côte-Nord in Québec.              is not enough access space outside the
                                              valve gallery and the overhead crane
    HPP Manic-5 is situated on the Mani­      does not have the necessary lifting ca-
  couagan River at the Daniel-Johnson         pacity. For the same reason, the valves
  Dam. With a height of 214 m, a length       cannot be completely dismantled. Much
  of 1,314 m, and 2.200,000 m3 of con-        of the refurbishment work, including in-
  crete, Daniel-Johnson Dam is the high-      spections, grinding, welding, machin-
                                                                                                              
  est multiple-arch-and-buttress dam in       ing, and painting, has to be done on-site
  the world.                                  directly in the valve gallery.

     ANDRITZ HYDRO is very familiar with      Existing valves
  the project, since the company was the
  Original Equipment Manufacturer (OEM)
  of the valves back in the 1970s. The
  current contractual scope comprises
  engi­neering, supply, dismantling, refur-
  bishment, and reassembly of the valves
  of six out of eight units at a rhythm of
  two per year. The scope of work also in-
  cludes new electrical and hydraulic con-
  trol panels, instrumentation, piping and
  platforms, as well as refurbishment of
  servomotors and levers. An anti-auto-
  oscillation hydraulic control system will
  also be provided preventing oscillation
  phenomena. In order to eliminate the old
  greasing system, self-lubricating bear-
20  Site Report
HYDRONEWS No. 30

  Pembelik
  by Burak Celikel
  burak.celikel@andritz.com

     Turkey – In the summer of 2016, the
  Pembelik hydropower plant on the Eu­-
  phrates River in Turkey was fina­    lized
  and started commercial operation. The
  order for the project was awarded to
  ANDRITZ HYDRO in 2011 by Darenhes
  Enerji Üretim A.Ş. – together with a con-
  tract for HPP Tatar, which started com-
  mercial operation in 2014 (see Hydro
  News 25).

    The Pembelik hydropower plant is lo-
  cated on the Peri Stream River, a ma-
  jor branch of the Euphrates which runs       View of the hydropower station area
  between the provinces of Tunceli, Bingöl
  and Elazığ and within the borders of
  the Karakoçan district in Turkey. HPP
  Tatar is situated downstream of HPP
  Pembelik. Both projects were won fol-
  lowing an international bidding process,
  with ANDRITZ HYDRO succeeding
  through both its technological know-
  how and the best offer, as well its exten-
  sive expericence in the Turkish market.

    The agreed time schedule was chal-
  lenging from the beginning, but HPP
  Pembelik was completed and handed
  over to the customer for commercial
  operation two months earlier than the
  contractual handover date.                   Machine hall

    ANDRITZ HYDRO’s contractual scope          the special components of the turbine –      HPP Pembelik has two units with a to-
  comprised design, engineering, manu­         like the head cover, bottom ring, and      tal capacity of 131.6 MW and will deliver
  facturing, transport, and installation       stay ring – and of the generator – like    372 GWh of electrical energy per year to
  of turbines, generators, and electrical      the rotor spider, lower and upper brack-   the national grid.
  equipment as well as supply of an au-        ets – as well as installion service were
  tomation and protection system. In ad-       provided by ANDRITZ HYDRO Turkey.
  dition a 161 kV switchyard, two feeder
  stations, and equipment training on-site
  were also part of the deal.                                                              TECHNICAL DATA

                                                                                           Output                2 × 65.8   MW
    Executed by ANDRITZ HYDRO lo-
                                                                                                                 2 × 74.2   MVA
  cations in Austria and Turkey, the de-
                                                                                           Voltage                   13.8   kV
  sign and supply of turbine and generator
                                                                                           Head                      69.8   m
  core equipment, the protection, auto-
                                                                                          Speed                   166.7    rpm
  mation and excitation system were pro-
                                                                                           Runner diameter         3,620    mm
  vided by ANDRITZ HYDRO Austria. The
                                                                                           Av. Annual production      372   GWh
  delivery of the 161 kV switchyard and
21  Site Report
HYDRONEWS No. 30

                                                                                                                     

                                                                                                                  VIDEO

  Transportation of the rotor

 Reisseck II
                                               (control, excitation, and protection), hy-   increased by 50 % (as calculated with
                                               draulic protection, gates and valves,        linear material properties).
                                               ANDRITZ HYDRO also installed two
  by Walter Scheidl
                                               identical generator units in the cavern.       With this project ANDRITZ HYDRO
  walter.scheidl@andritz.com
                                                                                            once again strengthened its relationship
  and Rupert Kirchengast                         The ideal hydraulic unit is a 215 MW       with the customer and adds an important
  rupert.kirchengast@andritz.com               single-stage reversible pump turbine         Austrian project to its references.
                                               with vertical shaft, a nominal speed of
    Austria – Commercial operation of the      750 rpm and a dynamic runaway speed           TECHNICAL DATA
  new pumped storage power plant Reiss-        of 1,142 rpm. During the project plan-
                                                                                             Output    2 × 215 MW / 2 × 240   MVA
  eck II in Austria started in October 2016.   ning process, potential European gen-
                                                                                             Head                       595   m
                                               erator manufacturers were asked to
                                                                                             Speed                      750   rpm
     Owner VERBUND has awarded a con-          examine the basic feasibility of an ap-
                                                                                             Rotor diameter          3,202    mm
  tract to ANDRITZ HYDRO for the de-           propriate motor generator, which was          Annual production          970   GWh
  livery of electro-mechanical equipment,      confirmed, even though units with an
  the control system and protective infra-     output of 30 MVA per pole had not been
  structure in 2013 (see Hydro News 24).       realized in Europe at that time.             Rotor for unit #1

    As part of the Malta-Reisseck Power           To achieve a robust unit with a long
  Plant Group – the largest group of hy-       service life, many different load cases
  dropower plants in Austria – PSPP Reis­      needed to be mastered and their defi-
  seck II consists of an underground pow-      nitions represented the basis for the
  erhouse. It is owned by VERBUND and          design. VERBUND requested rotor
  is situated in the province of Carinthia     overspeed testing of at least 1,200 rpm.
  in the Austrian Alps. The newly built        Highly stressed areas tend to plastify
  pumped storage power plant extends           during overspeed testing and compres-
  this group by using the existing reservoir   sive residual stresses remain, which re-
  Grosser Mühldorfer See.                      duces tensile stresses during operation.
                                               In contrast to many common designs
    In addition to design, installation and    of units without overspeed testing, this
  commissioning of automation systems          allowed the value for peak stress to be
22  Interview
HYDRONEWS No. 30

   INTERVIEW

  Santo Antônio
  An Amazonian Example of Sustainable Hydropower

  Brazil – Recently completed, the 3,568 MW
  Santo Antônio hydropower plant is one of
  the five largest hydroelectric stations in
  Bra­zil and supplies en­ergy to some 44 mil-
  lion people from its 50 units.

  Antônio de Pádua Bemfica Guimarães is
  technical director of Santo Antônio Energia
  (SAE), a company responsible for implemen­
  tation of San­to Antônio, he talked to Hydro
  News about the project.

  World’s largest bulb turbine being installed at Santo Antônio
23  Interview
HYDRONEWS No. 30

                   “   An evaluation made by the International
                       Hydropower Association (IHA), considered

                                                                                  ”
                       Santo Antônio the most sustainable project
                       evaluated by them in the world.
                                – Antônio de Pádua Bemfica Guimarães

                       What makes the bulb turbines at HPP Santo Antônio
                       special?

                         HPP Santo Antônio uses the largest bulb turbines in the world.
                       The previous record-holder uses machines rated at 68 MW, our
                       turbines have 71.6 MW. In terms of size, at 7,500 mm diame-
                       ter they are second only to the 8,410 mm units installed at HPP
                       Murray Lock, in the USA.

                          The decision to use bulb turbines was driven by the flow char-
                       acteristics of the Madeira River and the necessity to minimize
                       the environmental impact of a large project, significantly reduc-
                       ing the area of the reservoir. Precisely because it is a run-of-river
                       power plant, the bulb turbine proved the best solution to com-
                       bine lowest impacts with highest use of the hydroelectric poten-
                       tial of the river.

                       What were your main considerations in selecting the key
                       contractors for Santo Antônio?

                         Due to the project complexity, a lot of equipment involved,
                       and the size of the turbine set for the Santo Antônio hydropower
                       plant, the supply chain was concentrated in the most experi-
                       enced and largest power generation equipment manufacturers.
                       In addition, the Santo Antônio project implementation is under
                       an EPC (Engineering Procurement and Construction) contract
                       structure.

                         ANDRITZ HYDRO is part of the Santo Antônio Constructor
                       Consortium (CCSA). Its scope of supply included 14 bulb tur-
                       bines, 13 generators, 28 excitation systems, 26 generator
                       switch­
                             gear systems, and three power transformers rated at
                       13.8 kV–500 kV.

                         The companies that make up the CCSA had, in addition to
                       their expertise, an important role in the development of local
                       companies and service providers. This partnership is leaving
                       an important legacy because they prepared local companies to
                       meet the demands of other projects.
24  Interview
HYDRONEWS No. 30

  Installation works                                                  Bulb nose

  What unexpected challenges have arisen during the con-              Given its location on the Amazon, how does Santo Antônio
  struc­tion and installation of Santo Antônio?                       address environmental sustainability concerns?

     Many adverse situations have arisen during the implementa-          The Amazon is a sensitive area, with strict environmental pres-
  tion phase of the Santo Antônio hydroelectric plant. Two of them    ervation standards. Therefore, it is essential to adopt practices
  deserve to be highlighted:                                          that minimize to the maximum the effects that large infrastruc-
                                                                      ture projects, such as hydroelectric dams, can cause in a region
    The high concentration of sediments carried by the Madeira        like the Amazon. One way to ensure this is to allocate financial
  River, which reaches 500 million tons/year; and, the large          resources and apply techniques and appropriate technologies
  amount of floating elements during the flood season, which add      to mitigate these effects, compensating for the impacts caused.
  up to about 30,000 logs, antlers and other objects a day.
                                                                         The Basic Environmental Project (PBA) is a document that de-
     Construction, erection, and commissioning activities took        scribes the set of actions and measures to be implemented be-
  place simultaneously with operating activities so while genera-     fore, during and after the works of our hydroelectric installation.
  tion units were being installed many problems were identified in    Despite the name, it does not cover only environmental initia-
  the units that were in commercial operation. This required a con-   tives. The recovery and strengthening of the history and culture
  tinuous reassessment of the project and often further studies.      of Porto Velho, as well as the enhancement and development
                                                                      of the local population, are vectors of sustainability that are also
                                                                      part of our company project. In total, 28 programs have been
                                                                      conducted and add great results.
  Machine hall
                                                                        Regarding social and environmental concerns in the country,
                                                                      the Santo Antônio hydropower plant is a good example for im-
                                                                      plementation of sustainable power generation models. Strictly
                                                                      respecting the rules established by the Brazilian environmental
                                                                      agencies, the project was designed to respect the natural char-
                                                                      acteristics of Amazonia, at the same time taking the maximum
                                                                      advantage of the Madeira’s hydraulic potential.

                                                                        An evaluation made by the IHA – International Hydropower
                                                                      Association, considered Santo Antônio the most sustainable
                                                                      project evaluated by them in the world, achieving the highest
                                                                      number of top marks in more than 20 topics related to environ-
                                                                      mental issues and stakeholders influenced by the project.
25  Interview
HYDRONEWS No. 30

                              

  Powerhouse and dam area

  How do you see future hydropower development in the
  Amazon region of Brazil unfolding?

     The Amazon is the last frontier of the country's hydropower
  generation development, with about 70% of its potential yet
  to be explored. Given this, it is natural that there is a strate-
  gic interest in making the region an important hub of clean and
  renewable power generation, attracting large projects. Today,                                   ABOUT
  using the Santo Antônio hydropower plant as an example, you
  realize that you can explore all this power responsibly, incorpo-
  rating the new project mechanisms that significantly reduce the
  environmental impact and ensure the use of the Amazon’s po-
  tential. The implementation of Santo Antônio is an important
  benchmark for other projects planned for the region, especially
  in breaking the old paradigm. It is possible to generate energy
  from the Amazon with sustainability.

    Joining knowledge and the sum of the technical experience
  of the team of Santo Antônio Energia, ANDRITZ HYDRO and
  other manufacturers, we are certainly making history in the                                     Antônio de Pádua Bemfica Guima­r ães
  implementation of large infrastructure projects, and helping to                                 is technical director of the Santo
  avoid imperfections in future projects.                                                         Antônio Energia (SAE) Company, re­
                                                                                                  sponsible for implementation of the
  Interview by David Appleyard                                                                    Santo Antônio hydropower project on
  Freelance journalist focused on energy and technology (UK)                                      the Madeira River in Porto Velho, the
                                                                                                  capital of the northwestern Brazilian
  SANTO ANTÔNIO IN SHORT

                                                                                                  state of Rondônia.
                           Part of the Madeira River Complex
                           3,568 MW installed capacity
                                                                                                     A civil engineer, since graduat­
                           50 units in operation since November 2016
                                                                                                  ing in 1980 he has held senior roles
                           71.6 MW, world's largest bulb turbines
                                                                                                  in Enerpeixe and Furnas Centrais
                           7,500 mm runner diameter, among the largest worldwide                  Elétrica. Today, Antônio de Pádua is
                                                                                                  responsible for the EPC Contract Ma­
                           2.5 km dam length – The amount of steel and concrete used correspond   nage­ ment and construction inspec­
                           to 40 Maracanã Stadiums and 18 Eiffel Towers.                          tions on this giant project.
26  Site Report
HYDRONEWS No. 30
     © Photo Hydro-Québec

    Dam area HPP La Grande-3                                                                  HIPASE-E as installed at La Grande-3

    La Grande                                   to produce 2,199 A at 306 V and com-
                                                prises a redundant thyristor bridge with
                                                                                              HIPASE-T platform. The first unit was
                                                                                              successfully commissioned end of

    3&4
                                                forced cool­ing, the static excitation sys-   2016. Closing of the complete project
                                                tem will be the biggest ever delivered by     and commissioning is scheduled for
                                                ANDRITZ HYDRO. The exciter cubicle            2019.
    by David Tawfik                             contains power circuits, the automatic
    david.tawfik@andritz.com                    voltage regulator and the complete se-         Both contracts strengthen ANDRITZ
                                                quencer, which is necessary to control        HYDRO’s position in the Canadian market.
       Canada – 2015 Hydro-Québec has           the individual components. The system
    awarded two contracts to ANDRITZ            also comprises the newly developed             TECHNICAL DATA
    HYDRO for modernization works at the        HIPASE-E platform.                             La Grande-3
    James Bay Project in Canada. Initiated                                                     Output               12 × 200     MW
    by Hydro-Québec and the Québec gov-            Hydro-Québec is stringent regarding         Voltage                  13.8     kV
    ernment in the 1970s, and located be-       quality in many segments, like drawings,       Frequency                  60     Hz
    tween James Bay and Labrador on             selection of the material, test procedures     Head                     79.2     m
    the La Grande River in Northwestern         and homologation process. Given the            Speed                  112.5      rpm
    Québec Canada, it is one of the largest     size of each unit, minimum ventilation is      Av. annual production 12,484      GWh
    hydroelectric systems in the world with     required to properly cool the exciter and      La Grande-4
    a total capacity of more than 16,000        some modifications had to be made.             Output                9 × 308 MW
    MW. Eight hydropower stations gener-        The first system has already been de-          Voltage                  13.8 kV
    ate an average of 83 TWh a year, allow-     livered, the remaining 11 excitation sys­-     Frequency                  60 Hz
    ing pollution-free production of a sig-     tems will be delivered over a period of        Head                   116.7 m
    nificant portion of Québec’s electricity.   five years up to 2020.                         Speed                  128.6 rpm
    After more than 30 years’ of operation         Previously, another contract for the        Av. annual production 13,670 GWh
    the need to exchange parts of the sec-      modernization of the 2,772 MW La
    ondary systems has arisen.                  Gran­ de-4 hydropower station was
                                                awarded to ANDRITZ HYDRO in No­
       In December 2015, ANDRITZ HYDRO          vem­ber 2015. The scope of supply com­-
    received a contract for design, manu-       prises design, supply, and delivery of
    facturing, supply and delivery of 12 sta-   nine digital HIPASE-T turbine governors,
    tic excitation systems with transformers    including the process of homologa-
    for HPP La Grande-3. Each unit has an       tion for the hardware and software for
                                                                                                               
    output of 200 MW. Of the delivered ex-      the new product. This order is the first
    citation systems each has the capacity      turbine governor project for the new
27  Site Report
HYDRONEWS No. 30

  Generator
  Rehabilitation
  Program
  by Peter Jaunecker
  peter.jaunecker@andritz.com

    Tasmania – Just over one year ago
  in October 2015, Hydro Tasmania and
  ANDRITZ HYDRO signed a frame                                     Contract signing
  agreement for a generator rehabilitation
  program – a contract lasting for sev-       how as well as positive experiences from     TECHNICAL DATA
  en years. ANDRITZ HYDRO agreed to           previous co-operations, such as the sta-
  supply seven stators, five stator wind-     tor rehabilitation at the Cethana and        Output               12 × 11–66 MVA
                                                                                           Speed                136.4–600 rpm
  ings and four pole sets for 12 genera-      Fisher hydropower plants (see Hydro
                                                                                           Voltage                  6.6–16 kV
  tors in eight different hydropower plants   News 25). The Alternator Upgrade Pro­
  with rated outputs of 11–66 MVA.            gram forms part of Hydro Tasmania’s
                                              overall upgrade program, and ANDRITZ
     In 2015, Hydro Tasmania produced         HYDRO is pleased to support Hydro
  more than 8,000 GWh of electrical en-       Tasmania with a rehabilitation program
  ergy – mainly through its 30 hydropower     for Kaplan turbines, governors and con-
  stations. Founded more than 100 years       trol systems.
  ago, today Hydro Tasmania is Australia’s
  largest renewable energy producer and           The contract started with the Se­par­
  the main energy supplier in Tasmania.       able Portion No.1 (SP1), an order for                         
                                              the design of 12 generator units. After
    A key criteria for Hydro Tasmania to      fi­nalization of the design works for the
  choose ANDRITZ HYDRO as supplier            generator at HPP Repulse (see Hydro
  was the company’s technological know-       News 27), Hydro Tasmania issued SP2,
                                              an order for the supply of a new stator     Machine hall HPP Catagunya
                                              winding for the same generator in March
                                              2016. ANDRITZ HYDRO is manufactur-
                                              ing the stators and poles of the genera-
                                              tor units for HPPs Catagunya 1 and 2,
                                              which will be delivered out of India in
                                              2018. Furthermore, a design and lifetime
                                              study of the remaining generator com-
                                              ponents will be carried out. It will form
                                              the basis for a decision on whether any
                                              other generator components need refur-
                                              bishment and if the expected lifetime of
                                              50 years can be achieved without any
                                              further major refurbishment works.

                                                Co-ordination between two generator
                                              manufacturing sites, while preserving
                                              highest quality standards and optimiz-
                                              ing on-site works with local partners,
                                              proves the vast experience of ANDRITZ
                                              HYDRO in project execution.
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