FISH-FRIENDLY DESIGNS - ANDRITZ Group
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MAGAZINE OF ANDRITZ HYDRO | 10/2017 | ENGLISH
No.31
HYDRONEWS
WATER FOR INTERVIEW MINI-GRID
ATLANTA CHAUDIÈRE FALLS SOLUTIONS
Page 10 Page 32 Page 36
FISH-
FRIENDLY
DESIGNS
Page 18
2
LATEST NEWS NO. 31 / 2017 HYDRONEWS
TEST NEWS LATEST NEWS LATEST NEWS LATEST NEWS LATEST NEWS LATEST NEW
VIETNAM
CHINA
PORTUGAL THÁC CÁ 2 AND
FENGNING II ALTO TAMEGA DONG SUNG
New contract; June 2017; 1,800 MW; New contract; June 2017; 16 MW each;
New contract; July 2017; 922 tons;
Fengning Pumped Storage Ltd. Co.; two Xuan Thien Yen Bai Co.Ltd.; electro-
Iberdrola Generación Espana S.A.U.;
306 MW/ 333MVA pump units incl. Balance mechanical equipment including a hori-
hydro-mechanical equipment including
of Plant, Electric Power Systems (EPS) as zontal shaft Bulb turbine-generator for
trash racks, gates and stop logs as well
well as protection and control systems and each plant incl. mechanical auxiliaries,
as control systems;
governors; closing scheduled for mid-2021; electric power systems, and automation;
completion mid- respectively end of 2019;
SMALL &
MINI HYDRO
NORWAY
VASSENDEN
MEXICO
CANADA "from-water-to-wire" package;
GARTSHORE TEMASCAL I 9.96 MW; Helgeland Kraft AS
Project update; June 2017; 338 MW;
New contract; June 2017; 23.5 MW; Great
Comisión Federal de Electricidad (CFE);
Lakes Power Limited; general major reha-
unit #4 successfully delivered and ready
bilitation incl. new Kaplan runner,
for commissioning, guaranteed values of
stator winding and turbine governor;
power and efficiency exceeded; site
completion planned October 2018;
works for unit #3 started;
AUSTRIA
WÖLZERBACH
one 500 kW horizontal axial turbine;
Murauer EnergieZentrum
CANADA
PAKISTAN AUSTRIA
CHENAUX GS TRAUNLEITEN
GOLEN GOL New contract; June 2017; 143.7 MW;
Bulb turbines and synchronous
Project update; June 2017; 110 MW; Ontario Power Generation; replacing of all generators; 2 x 10.3 MW;
Water & Power development authorities control and protection systems for eight Wels Strom GmbH
(WAPDA); rotor and stator of unit #1 suc- generators; including design, installation
cessfully installed; pre-assembly for unit and commissioning; completion sched-
READ MORE ABOUT
#2 and #3 ongoing; closing scheduled for uled end of 2019; SMALL & MINI HYDRO PROJECTS
end of 2018; Page 38
ATEST NEWS LATEST NEWS LATEST NEWS LATEST NEWS LATEST NEWS LATEST NEW
HYDRONEWS NO. 31 / 2017 3
State-of-the-art technology for fish-friendly design
and Mini-Grid solutions
Wolfgang Semper Harald Heber
Dear Business Friends,
With some 22% of the world’s demand for electricity Around the globe, the market for small and mini hydro-
currently generated from renewable resources, the 74% of power is steadily growing. Besides numerous new
that total coming from hydropower already makes it by far projects, older and less efficient sites are being modern-
the largest clean power contributor. Many developing ized and refitted. An example is the historically significant
countries have now also started to realize the low and Chaudière Falls site – in the heart of the city of Ottawa,
very low head hydropower potential of their rivers. For all Canada, the country’s oldest operational hydropower
modern hydropower applications optimization across a plant, where the most powerful ECOBulb* turbines to date
range of economic parameters and environmentally- have been installed by ANDRITZ HYDRO.
friendly solutions are crucial. Fish migration has become a
highly significant issue, for instance. ANDRITZ HYDRO is Rural Electrification is also becoming a very important
fully committed to the continuous development of fish- element of the hydropower market. To meet this demand
friendly solutions for hydropower turbines and structures, ANDRITZ HYDRO has developed special Mini-Grid
and has been for decades. The cover story in this edition solutions for off- and micro-grid applications to bring
of HydroNews provides an overview of the ANDRITZ electricity to remote areas and support economic
HYDRO design strategy to ensure high survival rates development.
where fish populations encounter hydropower develop-
ments. The experienced ANDRITZ HYDRO employees remain
very active in project execution worldwide – as the current
In a generally very challenging energy market, global engagements in Angola, Brazil, Lao PDR and Switzerland
investment in hydropower plants has remained buoyant demonstrate. With evolving requirements for environmen-
and project activities have reflected this stability in recent tally-friendly and economic hydropower solutions, new
years. ANDRITZ HYDRO continues to make its contribu- possibilities for small and mini-hydro, as well as refurbish-
tion with unique projects all over the world. Recent ment and rehabilitation opportunities, ANDRITZ HYDRO
examples include contracts for the three-nation Rusumo is confidently looking forward to the future hydropower
Falls project in Rwanda, the fish-friendly solution at Rock market.
Island in the USA, Nam Na 1 in Vietnam and Dnipro 1 in
the Ukraine. Originally built in 1932, Dnipro is still the With kind regards
largest hydropower plant in the country and is now being and sincere thanks for your continued trust,
refurbished and the existing generating equipment
replaced.
Wolfgang Semper Harald Heber
27
32
18 COVER STORY
Fish-friendly Designs
18
INTERVIEW
Franz Kropp
Chaudière Falls
32
TECHNOLOGY
Mini-Grid Solution
36
06
EVENTS
42
41 24
OUR
OUR
PROJECTS
PROJECTS
IN
INTHIS
THISISSUE
ISSUE
NEW PROJECTS SITE REPORTS FOR
FURTHER
Laúca | Angola 24
Dnipro 1 | Ukraine 06
Pimental | Brazil 26
INFORMATION
Graz-Puntigam | Austria 08
Tiloth | India 09 Sogamoso | Colombia 27
CONTACT US:
Atlanta | USA 10 Xayaburi | Lao PDR 28 hydronews@andritz.com
Rusumo Falls | Burundi | Rwanda | Tanzania 14 Mwadingusha | DR Congo 30
Rock Island | USA 16 Hongrin Léman Ext. | Switzerland 31
Nam Na 1 | Vietnam 17
SMALL & MINI HYDRO
Small Hydro Highlights 38
Innertkirchen 3 | Switzerland 40
Enjoy an interactive reading experience! View picture Online magazine
Luachimo | Angola 40 galleries, videos and other additional content to each
article. Simply scan the QR-code or check out:
Namgang | South Korea 41 www.andritz.com/hn31-more
Carhuac | Peru 41
IMPRINT: Project Manager: Judith Heimhilcher, Nadja Unmuth This issue includes links to videos on external websites
Publisher: ANDRITZ HYDRO GmbH, Editorship: Marie-Antoinette Sailer whose content we can’t influence. The opinions
A-1120 Vienna, Eibesbrunnergasse 20, Austria Copyright: 2017, ANDRITZ HYDRO GmbH expressed in the videos are personal views of the
Phone: +43 50805 0 All rights reserved. speaker, which must not match with the positions of
E-Mail: hydronews@andritz.com Graphic Design: INTOUCH Werbeagentur ANDRITZ HYDRO GmbH. The initiator of the video is
Responsible for the content: Alexander Schwab Circulation: 15,500 responsible for the accuracy of the content. Printed on
Editorial Board: Clemens Mann, Bernhard Mühlbachler, Printed in: English, French, German, FSC paper; ANDRITZ HYDRO GmbH; Printed at WGA
Jens Päutz, Hans Wolfhard Portuguese, Russian and Spanish Print-Producing, 6911 Lochau, www.wga.cc
*Trademark of the ANDRITZ GROUP. For information regarding ownership and countries of registration, please visit www.andritz.com/trademarks.
6 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
NEW PROJECTS
DNIPRO 1
IN THE FLOW
OF HISTORY
UKRAINE – Ukraine’s state-owned PJSC
Ukrhydroenergo (UHE), the country’s largest
hydropower company, has signed a contract
with ANDRITZ HYDRO for the rehabilitation
of three units at its Dnipro 1 hydropower
plant. Awarded in late December 2016, this
contract sees ANDRITZ HYDRO become
the first European contractor for a large hy-
dro rehabilitation project in Ukraine.
© PJSC Ukrhydroenergo (UHE)
At the lower reaches the Dnieper River is
filled with rapids, which made it difficult to
navigate until the 19 th century. Today, this
is the location of the Dnipro hydropower
plant (also called Dnieper HES-1). The
plant spans the Dnieper River like a bridge
Powerhouse
HYDRONEWS NO. 31 / 2017 NEW PROJECTS 7
Experience
further content
Contract signing
© PJSC Ukrhydroenergo (UHE)
bank. At the time of its construction – at
over 800 m length and more than 60 m
height – the Dnipro dam was the largest in
Europe. Even today, considered jointly with
HPP Dnipro 2, with a total of 18 units and an
installed capacity of more than 1,500 MW,
the Dnipro plant is still the largest hydro-
power plant in Ukraine. Now, after more
than 70 years of operation, the existing gen-
eration units of HPP Dnipro 1 have to be
replaced with new units, providing higher Dnipro 1 | Ukraine
output, efficiency and reliability.
Technical data:
ANDRITZ HYDRO is responsible for the Total output: 1,500 MW
rehabilitation of three Francis turbines and Scope: 3 × 75 MW
generators – units #1, #2, #3 – including dis- Voltage: 13.8 kV
between the cities of Zaporizhia and mantling of the existing equipment and sup- Head: 35 m
Dnipropetrovsk. ply, installation, and commissioning of the Speed: 83.30 rpm
new units. Runner diameter: 5,740 mm
This famous hydropower plant was the
first power plant of the Dnipro cascade and One of the technical highlights of this con-
was originally built by the former Soviet tract is the implementation of an umbrella de-
Union in 1932. Until 2016 this power plant sign while keeping the historic upper bracket, important historical artifacts at the same
was named after Lenin. In 2016, the which will be refurbished and brought into time. Rehabilitation of this historic and pres-
Ukrainian government renamed it after the position but without function. According to tigious hydropower plant making it fit for the
homonymous river. the contract time schedule, the last unit future is not only an interesting but also a
should be finished and commissioned in late complex challenge.
During World War II the Dnipro plant was 2021.
severely damaged. After rebuilding, it was
re-commissioned in 1949. Some decades This order represents not only a very im- AUTHOR
later, HPP Dnipro was extended with a sec- portant step into the Ukrainian hydropower Dieter Erke
ond power house (Dnipro 2) on the left river market, but the partial preservation of hydronews@andritz.com
8 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
NEW PROJECTS
GRAZ-PUNTIGAM
Experience
further content
SAVING
60,000 Graz-Puntigam | Austria
Technical data:
TONS Total output:
Scope:
Voltage:
Head:
17.7 MW
2 × 8.85 MW
6.3 kV
9.65 m
Speed: 150 rpm
© Energie Steiermark / Scenomedia Runner diameter: 3,600 mm
from the province of Styria and from the
Federal Environmental Senate thoroughly an-
alyzed the project site, as well as all the input
and any concerns from NGOs and local res-
idents. Finally, in 2014 the go-ahead for the
project was given, and all required legal certi
A 3D simulation of the plant on the Mur River
fications could be obtained. The hydropower
plant will provide about 45,000 Graz resi-
dents as well as the numerous electric cars
AUSTRIA – In March 2017, ANDRITZ flow rate of 200 m³/s. The major part of the in the city with CO2-free electricity starting in
HYDRO was awarded the contract to sup- equipment will be produced in the ANDRITZ 2019, and will lead to a sustainable reduc-
ply the electro-mechanical equipment for a HYDRO workshop in Weiz, Austria, thus pro- tion of dependency on electricity imports.
new hydropower plant to be built in the heart viding substantial local added value. Thus, about 60,000 tons of CO2 will be saved
of Graz, the capital of the Austrian province annually once the hydropower plant is in
of Styria. The project owner and investor is Currently, the electricity produced in Styria operation.
the Styrian energy utility Energie Steiermark, covers less than half of the province’s elec-
together with VERBUND and Energie Graz. tricity demand. In order to improve Styria’s This order once again underlines ANDRITZ
Commissioning of the plant is planned for the energy balance and to achieve the ambitious HYDRO’s successful and long-term coop-
first half of 2019. climate goals set out under the Paris agree- eration with both Energie Steiermark and
ment, the Styrian climate and energy strate- VERBUND while it also strengthens the com-
ANDRITZ HYDRO is going to supply two gy stipulates intensified expansion of renew- pany’s leading market position in the Austrian
Bulb turbines with a capacity of 8.85 MW able energy sources. Initial plans for the Mur hydropower market.
each, including speed controllers, as well River hydropower plant in Graz were present-
as generators, excitation and the entire con- ed to the public in 2009. In the course of an AUTHOR
trol system of the plant. The power plant is environmental impact assessment taking a
Michael Haslinger
designed for a gross head of 9.65 m and a total of four years, environmental experts hydronews@andritz.com
HYDRONEWS NO. 31 / 2017 NEW PROJECTS 9
NEW PROJECTS
TILOTH
AN
ENGINEERING
CHALLENGE
INDIA – Towards the end of 2016,
ANDRITZ HYDRO signed a contract with
UJVN Limited for the rehabilitation of the
Tiloth hydropower plant in Uttarakhand,
India.
Located on the Bhagrathi River in the north
of India, HPP Tiloth was originally commis-
sioned in 1984. It consists of three generating
units with a capacity of 30 MW each. necessary. Methods to reduce the impact
of silt particles on the equipment include
Experience
ANDRITZ HYDRO’s contractual scope adding a further sedimentation chamber further content
comprises the supply of three vertical and adaptation of the steel of the runner
Francis turbines, generator components, blades. To design such advanced equip-
electronic governors, static excitation and ment poses an interesting challenge for the
protection systems, and a SCADA sys- engineers.
tem. The contract also includes electrical
and mechanical auxiliary systems, as well The completion of the project and hand
as the refurbishment of existing equipment, over to the customer is scheduled for the
such as spherical valves, transformers, and second half of 2021.
switchyard equipment. Installation, testing
and commissioning complete the terms of ANDRITZ HYDRO has already executed
the contract. rehabilitation work at HPP Pathri (3 ×
6.8 MW) in 2010–2014 to the full satisfac-
A team from ANDRITZ HYDRO locations tion of the same customer. Tiloth | India
in Germany, Switzerland, and India are
working in close cooperation to meet the With successful execution of this project, Technical data:
challenges of the project. One of these ANDRITZ HYDRO will further reinforce its Total output: 90 MW
challenges is the tight time frame for deliv- position as a technology leader and reliable Scope: 3 × 30 MW
ery of the first unit – within 22 months in- partner in developing hydropower in India. Voltage: 11 kV
cluding reverse engineering. Furthermore, Head: 145 m
the Bhagrathi River is very silty. Suspended AUTHOR Speed: 428.6 rpm
solids can cause serious damage, hence Runner diameter: 1,620 mm
Raj Deepak
erosion-resistant underwater equipment is hydronews@andritz.com
10 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
USA – The former Bellwood granite quarry
“Clean and secure water supply is
northwest of Atlanta, Georgia, is to become
one of the biggest water storage facilities in essential to the health of the people
the United States as part of a major infra- and to the economy of a city.”
structure development program to increase
Department of Watershed Management
drinking water supplies for more than one
million residents of the city and its surround-
ings. As the capital and the most populous
city in the state, Atlanta has intensified its ef- Atlanta has been striving to modernize its Bellwood quarry – northwest of Atlanta’s
forts to alter the city demograph- infrastructure and revitalize its neighbor- downtown district – is going to become
ics, politics and culture to be- hoods since the 1996 Olympic Games. one of the biggest water storage facilities
come a pioneer in enhancing One of the most prestigious and import- in the country, s toring some 2.4 billion US
safe and stable supplies of po- ant projects is set to dramatically increase gallons of water (9.1 billion liters) as part of
table water for its citizens. the city’s drinking water supplies. this program. This expansion of the city’s
NEW PROJECTS
ATLANTA
WATER FOR
ATLANTAHYDRONEWS NO. 31 / 2017 NEW PROJECTS 11
raw storage c apacity will provide Atlanta (10.7 m) diameter and 200 ft (61 m) deep After a public naming contest, the tunnel-
with a reliable supply of drinking water for the and the second with a 20 ft (10.6 m) di- boring-machine was named “Driller Mike” as
next 100 years and increase the emergency ameter and 300 ft (91.4 m) deep. Five fur- a tribute to Atlanta resident Michael Render,
raw water reserve from just three days to ther 6.3 ft (1.9 m) diameter pump shafts are aka “Killer Mike”, a famous rapper, actor and
30 days. The Department of Watershed to be constructed, along with a new pow- activist. The artist is honored to be associated
Management, which is in charge of the water er substation and various improvements with this project.
supply of about 1.2 million people in Atlanta to existing infrastructure. Central to this
and its surrounding area, is investing about project are the 136 million gallons per day After completion of the project, the city
US$ 300 million in this amazing project. (mgd; 29,052 m³/h) Hemphill Tunnel Pump plans to develop a 300 acre (1.2 km2) rec-
Station with four vertical turbine pumps and reation area at the site – the Westside Park.
Converting a 300 ft (91.4 m) deep quarry the 200 mgd (40,834 m³/h) Quarry Pump It will be the largest park in Atlanta and will
into a water storage facility and recreation Station with four vertical turbine pumps and be designed with public input in accor-
area includes blasting two circular pump three s ubmersible turbine pumps. dance with the Department of Watershed
station shafts near the quarry, one 35 ft Management requirements.
The quarry will be filled through a five-
mile-long (7 km) tunnel that will connect it The strategically important contract to
with the Hemphill and Chattahoochee Water supply the submersible pumps, including as-
Treatment Plants and the raw water intake sociated equipment for the low level pump-
and pump station at the Chattahoochee ing station, was awarded to ANDRITZ on the
River, the city’s primary water source. The basis of a technically superior, innovative, and
work also involves boring this 10 ft (3 m) di- very economical solution. Offering a turn-key
ameter tunnel, as well as the mechanical, solution provides a sustainable, low-main-
electrical and SCADA systems associated tenance service concept with low follow-up
with the pump stations. costs. In contrast to previous projects, direct
contact between the engineering company
Drilling is being done by an impressive and the owner was possible. Consultation and
400 ft-long tunnel-boring-machine (121 m), engagement with the owner during the early
which arrived in Georgia in July 2016 on 70 development stages was a major advantage.
trucks and assembled directly on-site.
The average domestic water
use for each person in the
USA totals about 50 gallons
(190 liters) a day.
© iStock.com / Ashiq_J
© iStock.com / bauhaus100012 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
Submersible pump
© JP2
“Reinvention of this quarry as a
reservoir and as a surrounding
park is one of the most creative
Chattahoochee land reclamation projects going
Water Treatment plant on in the city of Atlanta and
certainly in the southeast.”
Kasim Reed, Mayor of Atlanta
Tunnel
As water is withdrawn and the water lev-
el drops to very low levels, the system re-
quires that each submersible motor pump
has a constant capacity rated at 30 mgd
(4,842 m³/h), even under fluctu ating water
surface levels ranging up to 120 ft (36.6 m).
between minimum and maximum. To achieve
Quarry Water
Storage Facility this system requirement whilst operating un-
der this submergence differential the sub-
Hemphill Water
Treatment Plant mersible motors are driven by a variable
speed drive, which enables the motors to
run at varying speeds between 885 rpm and
1,081 rpm. Variable speeds change the ax-
ial forces on the rotating unit, which resultsHYDRONEWS NO. 31 / 2017 NEW PROJECTS 13
An abandoned granite quarry
west of Atlanta – world famous
from its appearance in television
dramas such as “The Walking
Dead”, “The Hunger Games”,
and “Stranger Things” – is on its
way to becoming a communal
amenity for Atlanta.
© PC Construction
Experience
further content
in varying shaft elongation and ultimately in ANDRITZ HYDRO received this important
undefined dynamic loads on the axial thrust order – the largest pump order for ANDRITZ
bearings. in North America to date – from the Joint
Venture PC Construction and H.J. Russell.
One of the major benefits of the pro- It marks an important step into this growing
posed ANDRITZ solution using double suc- market. The ANDRITZ team, comprising en-
tion submersible motor pumps is the full gineers and specialists from the US as well
compensation of the axial thrust indepen- as Europe, are proud to prove the high qual-
dent of the rotational speed. This charac- ity of ANDRITZ pumps and equipment and
teristic neutralizes the load on the pump, are pleased to contribute to the future sup-
the motor and its thrust bearings. With ply of hundreds of thousands of people with Atlanta | USA
this technology, two contra-rotating sub- fresh drinking water.
mersible motor pumps are arranged on top Technical data:
of each other and driven by a continuous The completion of the project is sched- Primary Rated Capacity: 30.7 mgd
pump shaft. Each of the two pumps trans- uled for 2019 and will address Atlanta’s goal Primary Rated TDH: 160 ft
ports half of the capacity to the middle of of achieving a sustainable water infrastruc- Rated Motor Power: 2,210 HP, 60 Hz,
the pump at full pressure. This significantly ture for future generations and flexibility in max. speed 1,081 rpm
reduces wear and tear, increasing service systems operation. In the event of a crisis or
life to up to 20 years and more and pro- loss of water service, it provides redundant 3 × double suction submersible motor
vides the maximum possible operational water storage and can save the city millions of pump units with discharge piping and
reliability. The division of work between the dollars per day. variable speed drives
two pumps not only achieves the complete
AUTHOR
compensation of axial thrust, it also halves
Stefan Borst 1 US gal. = 3.78 liters, 1 ft = 0.3048 meters, 1HP = 0.75 kW,
the suction velocity at the pump inlets. This hydronews@andritz.com 1 acre = 4,046 m2
protects the well walls around the intake
openings and minimizes the intake of abra-
sive solids and silt.14 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
NEW PROJECTS
RUSUMO FALLS
A THREE
NATIONS
PROJECT
BURUNDI / RWANDA / TANZANIA – For The new hyropower station will be lo- Execution of this project will be done by
the Rusumo Falls Hydroelectric Project cated on the Kagera River, about 2 km a team from international ANDRITZ HYDRO
Rusumo Power Company Limited has downstream of the confluence of the rivers locations. ANDRITZ HYDRO Germany has
awarded ANDRITZ HYDRO a contract for Ruvubu and Kagera, at the border between the lead of this project, and – working in
design, supply, installation, and commission- Rwanda and Tanzania. close cooperation with the customer – will
ing of the electro-mechanical equipment. be in charge of all on-site works. ANDRITZ
Under the terms of the contract signed HYDRO India is responsible for the manu-
A joint development of three east African in November 2016, ANDRITZ HYDRO’s facturing and delivery of the main compo-
nations – Burundi, Rwanda and Tanzania – scope of supply comprises the delivery nents including generators, EPS, and the
the implementation of this project will be of three 27.5 MW vertical Kaplan turbines draft tube gates, whereas the ANDRITZ
driven by an investment program of the Nile and auxiliaries. In addition, generators, HYDRO Austria team is giving technical en-
Basin Initiative, the “Nile Equatorial Lakes Electrical Power Systems (EPS), power- gineering support.
Subsidiary Action Program (NELSAP)”, on house cranes, draft tube gates, and stop
behalf of Rusumo Power Company Limited. logs, as well as the control and protection The first big project milestone was
Financing for the project is being provided systems of the whole hydropower plant, fall reached at the end of March 2017, when
by the World Bank. within the scope of supply. the groundbreaking ceremony took place inHYDRONEWS NO. 31 / 2017 NEW PROJECTS 15
Vertical Kaplan
runner as for
HPP Rusumo Falls
Contract signing
the presence of important officials from all inforce regional power interconnection.
three involved nations, representatives from About 7,000 households in each of the
the World Bank, the African Development countries will benefit from the power gener-
Bank, and key stakeholders. This was the ation of the hydropower plant. Additionally,
official start of the site civil works contract the site is going to provide job opportuni- Rusumo Falls |
activities. ANDRITZ HYDRO will start its ties for over 500 local people. Burundi | Rwanda | Tanzania
site activities towards the end of this year,
when the access to the powerhouse and AUTHOR Technical data:
the site has been prepared. Michael Stadler Total output: 82.5 MW
hydronews@andritz.com Scope: 3 × 27.5 MW
Overall the project duration is scheduled 3 × 30 MVA
to last some 36 months, with completion Voltage: 11 kV
by the end of 2019. HPP Rusumo Falls is Head: 25 m
an important project for the whole region. It Speed: 187.5 rpm
Experience
will provide an additional 27.5 MW to each further content Runner diameter: 4,050 mm
of the three countries involved and will re-16 NEW PROJECTS NO. 31 / 2017 HYDRONEWS
NEW PROJECTS
ROCK ISLAND
© Chelan PUD
CONNECTING
HISTORY WITH
FUTURE schedule, Chelan PUD achieves greater
flexibility to address any future unplanned
outages and will have the units available
prior to Chelan PUD’s “check in” for its
Habitat Conservation Plan (HCP). This plan
is a 50-year commitment to ensure that
Chelan PUD’s hydro projects have no net
impact on mid-Columbia salmon and steel-
head runs. ANDRITZ HYDRO is proud to
USA – Located in Washington State, the support Chelan PUD in meeting its HCP
Rock Island Hydroelectric Power Plant “It’s a proud moment to move commitment.
was commissioned in 1933 and was the forward with this modernization AUTHOR
first dam to span the Columbia River. Sited work and to have the oldest Darren Houghton
about 12 miles (19 km) downstream from turbines on the Columbia be re- hydronews@andritz.com
the city of Wenatchee, units B1–B4 in placed by the newest turbines.”
Powerhouse 1 were the first turbine gener-
ator sets installed on the Columbia River. In Randy Smith,
the 1950s another six generating units were Chelan PUD Commission President
installed in Powerhouse 1 and a second
powerhouse with eight Bulb turbine units
was subsequently commissioned in 1979. ANDRITZ HYDRO’s proposed turbine de-
sign increases capacity, at lower heads, and
ANDRITZ HYDRO was awarded a con- boosts unit efficiency, providing incremental
tract by Chelan County PUD to modern- value to Chelan PUD. Another benefit of the
ize units B5–B10 starting in 2006. Now, new runners is the fish-friendly design, re-
ANDRITZ HYDRO has received a new con- ducing the number of blades from six to four
tract to modernize the first four units, B1– and reducing the risk of blade strike by a fac- Rock Island | USA
B4, at Rock Island Powerhouse 1. tor of 33%. Blade strike is a leading stressor
Technical data:
affecting fish survivability. Cavitation is also a
Total output: 218 MW
key stressor with impact on fish survivability.
Kaplan runner Scope: 4 × 20.7 MW
The design also reduces cavitation so that
Voltage: 13.8 kV
the runners are essentially cavitation-free
Head: 40 ft (12.19 m)
over the entire operating range.
Speed: 100 rpm
( COVER STORY page 18)
Runner diameter: 228 inch (5,791 mm)
ANDRITZ HYDRO offered an alternate
approach to this project by taking three
units out of service for simultaneous mod-
ernization. This approach will result in the
Experience
modernization being completed six months further content
earlier than specified. Under the proposedHYDRONEWS NO. 31 / 2017 NEW PROJECTS 17
NEW PROJECTS
NAM NA 1
30 MW FOR
VIETNAM
ANDRITZ HYDRO secured this contract
for the Nam Na 1 hydropower plant, about
12 hours drive from the capital Hanoi, on the
Experience
basis of the quality of its equipment and pro-
further content
fessional project management, proven during
VIETNAM – The new Nam Na 1 hydropower pervious projects executed in Vietnam in re-
plant, located on the river of the same name, cent years.
is just part of Vietnam’s impressive hydro -
power potential of about 120,000 GWh/year. In order to increase domestic value during
Lai Chau Province, where Nam Na 1 is the execution of the project, ANDRITZ
located, is identified as a significant HYDRO is to involve local suppliers for manu-
area for the development of medium- facturing of turbine parts, such as draft tube,
size and small hydropower projects in the hatch cover and embedded piping, local de-
country’s National Electrical System De liveries for the EPS and mechanical auxiliary
velopment Plan. Hung Hai Group has been equipment and installation works.
promoted as a major strategic investor in the
province, having been granted the right to
The newly-established ANDRITZ HYDRO
develop many hydropower projects. As part company in Vietnam is playing a key role as Nam Na 1 | Vietnam
of its investment program, a subsidiary first contact for the customer and coordinator
of Hung Hai Group – North-West Power of the local supplies and services. The dedi- Technical data:
Joint-stock company – has signed a con- cated team of ANDRITZ HYDRO Vietnam is Total output: 30 MW
tract with ANDRITZ HYDRO for the electro- facing a very tight schedule and is keen to Scope: 2 × 15 MW
mechanical equipment for HPP Nam Na 1. accelerate the project development as much Voltage: 6.3 kV
as possible, working in tight coordination with Head: 9.62 m
The contractual scope of supply com the customer. Speed: 120 rpm
prises design, manufacturing, and installation Runner diameter: 4,600 mm
of two turbine-generator units, including gov- With eight Large Hydro projects as well as
ernor, main transformer, GIS, electrical p
ower six Compact Hydro projects currently being
system, and auxiliary mechanical systems. executed in Vietnam, ANDRITZ HYDRO has AUTHOR
Erection, commissioning supervision and again underlined its leading position in the Wenye Xu
training are completing the contract. important Southeast Asian region. hydronews@andritz.comTHE
18 FISH-FRIENDLY DESIGNS NO. 31 / 2017 HYDRONEWS
DIFFER
With top-notch environmental performance now a
decisive factor for the owners and developers of
hydropower plants, fish-friendly designs are becoming
increasingly important considerations for the overall
© iStock.com / DanBachKristensen
feasibility of hydropower projects.BIG
HYDRONEWS NO. 31 / 2017 FISH-FRIENDLY DESIGNS 19
RENCE
Decisions made during the early design stages of a proj- adult sea-dwelling species like salmon, striped bass and sturgeon
ect, such as those relating to the hydraulic and mechanical de- return to their spawning grounds in the tributaries of large rivers.
sign of the turbines can have a dramatic effect on improving fish
viability. Once a year, the adults of these species enter rivers and swim
upstream, energetically clearing all obstacles and even water-
Among the many different topics that must be addressed to falls, to reach their destination where they produce fertilized
optimize a run-of-river hydropower project from an environ- eggs. The young eventually find their way downstream to the
mental point of view, fish migration is a highly significant issue sea to mature into adulthood. Every fish faces many sources
for many water courses. of danger during migration: professional or leisure fishing and
natural predation, but also poor water quality due to pollu-
Fish migration usually occurs in order to feed or reproduce. tion and local water temperature changes caused by cooling
For example, in upstream migration (anadromous fish migration),20 FISH-FRIENDLY DESIGNS NO. 31 / 2017 HYDRONEWS
THE ANDRITZ HYDRO
FISH FRIENDLY OPTIONS
1 2 3 4
Variable speed Optimal Reduced Reduced
operating scheme gap runner turbulence level
© CH. Karnchang (Lao) Company Ltd.
water discharge from the industry. Last instance, during the powerhouse design to significantly and positively influence fish
but not least, hydroelectric power plants phase when the number, type and size of survival rates. In order to accurately as-
can also pose dangers to migrating fish. the turbines are selected, many important sess different designs in terms of their fish
decisions are made that can potentially re- mortality-related performance, compre-
Possibilities to influence fish survival duce fish mortality. In particular, the hy- hensive knowledge of injury mechanisms
From the first phases of plant design and draulic as well as the mechanical design and their corresponding mitigation mea-
layout, important parameters are set. For of the turbines offers many opportunities sures is necessary. Thorough studies also
have to be conducted, forming the basis of
the best hydropower solution for the ecol-
ogy of the river.
Fish Survival Assessment
There are two kinds of hydropower re-
lated influences on fish mortality. Direct
impacts due to physical injuries sustained
during passage through the turbine; and
indirect effects such as increased preda-
tion downstream of the discharge, and in-
creased stress and/or disorientation after
© Tony Campbell / shutterstock.com
passage through the unit.
Since the 1990s, ANDRITZ HYDRO has
followed a combined design strategy to
ensure high rates of fish survival. Different
design features are possible in connection
to the various injury mechanisms caused
by the different stressors (measurable,HYDRONEWS NO. 31 / 2017 FISH-FRIENDLY DESIGNS 21
5 6 7 8
Minimum Blunt leading edge Aligning stay and Biological
cavitation runner guide vanes assessment tool
NEW POSTION
OLD POSITION
physical quantities that can be linked to in reducing impacts on fish. For exam- Reducing the gap between rotating and
each injury mechanism). It is worth not- ple, increased fish survival rates can be stationary components can also boost sur-
ing that the optimal choice of design pa- achieved by optimization of the oper- vival rates by diminishing the risk of fish being
rameters for fish survival might be slightly ating scheme for power plants. The trapped. This can be realized by using a fully
different from those design considerations strong relationship between the rates of fish spherical discharge ring to minimize the blade
in which maximizing energy production or survival, the discharge rate and fish length is tip gap, using a spherical hub with “pockets”
minimizing costs are the only targets. one of most evident characteristics. During to minimize the hub gap.
the migration season, recording the sizes of
Variable speed 1 Bulb turbines with migrating fish allows plant operators to re- Smaller gaps at the runner also diminish
additional speed variation have very high act by changing the operating scheme of the turbulence level in the draft tube.
efficiencies across a wide operating range the turbines to increase fish survival rates. In general, turbulence in hydraulic pas-
whereas conventional double regulated The more information about fish migration sages can be separated between small and
turbines show high efficiency over a nar- behavior that is available, the more precisely large-scale effects, which affect fish differ-
rower operating range. This efficiency the operating regime of the turbines can be ently. Turbulence at small scales (length
capability is one of the fundamental ad- adjusted during periods of significant migra- scales smaller than the fish length) is pres-
vantages of variable speed technology tion. ent in the same locations as high shear, and
lead to similar injuries such as compression,
stretching, and bending. Thus, small-scale
turbulence injuries can usually be lumped to-
ANDRITZ HYDRO focuses intensely on the devel- gether with shear stress injuries. Large scale
opment of fish-friendly solutions to safeguard the turbulence (length scales longer than the
fish) causes disorientation, hence increased
viability of fish populations while delivering high
stress on the fish. Such effects taken alone
efficiency applied technology. By combining hy- do not harm the fish, but increase the inci-
draulic knowledge with biological understanding, dence of indirect mortality.
ANDRITZ HYDRO makes a big difference.22 FISH-FRIENDLY DESIGNS NO. 31 / 2017 HYDRONEWS
Direct turbine-related fish
injury mechanisms
B
A - Rapidly pressure changes
E B - Shear stress
G C - Turbulence
A D - Cavitation
D F
E - Impacts on walls and components
F - Grinding
G - Abrasion
C
A minimum of cavitation through- fish is acclimated to. Secondly, the pres-
out the whole operating range is also es- sure must drop more rapidly than the fish
sential for a fish-friendly design. Cavitation can accommodate such changes. These
occurs when static pressure reaches the conditions usually occur where the abso-
vapor pressure, leading to the forma- lute pressure can drop in a few instants to
tion of vapor bubbles. Reaching regions a fraction of a fish’s acclimation pressure.
of higher pressure, these bubbles rapidly
implode producing extremely energetic A blunt leading edge design may also
micro-jets, which may damage the runner allow a relevant increase in survival rates in
blades and disrupt fish tissues, represent- particular for small-sized fish species in
ing a potential cause of fish mortality. This terms of the ratio of fish length to lead-
is very much linked to rapid decompres- ing edge thickness. The optimal choice
sion, which is hazardous if two conditions of the leading edge thickness will be
are met. Firstly, the pressure must drop sig- achieved with the help of CFD simula-
nificantly lower than the pressure that the tions which also allow evaluating their
READ MORE ABOUT
FISH-FRIENDLY PROJECTS IN
THIS ISSUE:
ROCK ISLAND / USA
Page 16
© iStock.com / pidjoe
XAYABURI / LAO PDR
Page 28HYDRONEWS NO. 31 / 2017 FISH-FRIENDLY DESIGNS 23
influence on the performance and on the ANDRITZ HYDRO is fully committed to those impacts can have a dramatic and
cavitation characteristic of the blade. continuous development in regard to the positive effect on the environmental perfor-
fish friendliness of hydropower units and mance of hydropower plants.
Aligning the stay and guide vanes at structures. Enhanced understanding of fish
least in the most important operating points behavior and injury mechanisms to ensure ANDRITZ HYDRO is ready to contribute!
reduces the probability that a fish will hit the more reliable identification of critical design
wicket gate. features is a must and advanced methods AUTHOR
to improve fish survival through a hydraulic Andreas Rammler
hydronews@andritz.com
ANDRITZ HYDRO uses a biological as- turbine have been developed in conjunction
sessment tool supported by CFD with internationally active groups of biolo-
to record the various stressors on a fish gists. Measures to improve fish survival are
along its trajectory through an operating possible at all stages during the planning
turbine. Based on in-depth knowledge of and design of a hydropower plant. Serious
the stressor limits for injuries to various fish consideration of the many parameters af-
Experience
species, survival rates can be calculated fecting mortality rates and optimization of further content
with this assessment tool. the tools and measures used to mitigate
As the intact fish population is not only basis
of the livelihood of people living along the
rivers and lakes, but is also main food source
for animals, the sound fauna is essential
for the economic welfare of thousands of
people, sometimes for a whole region.24 SITE REPORTS NO. 31 / 2017 HYDRONEWS
SITE REPORTS
RENEWABLE
ENERG
LAÚCA
FOR
ANGOLA – Angola has one of the fastest
growing economies in the world. Due to
rapid urbanization and population growth,
especially in the capital city of Luanda, there
is a huge and growing demand for electri
city. As a result Angola has taken steps to
improve its energy supply.
In 2014, ANDRITZ HYDRO received a
con tract to supply the electro-mechanical
equipment for the new Laúca hydropower
plant located in the middle section of the
Kwanza River. This project consists of a
main power house with six units and an
eco-power house with one further unit. The
scope of supply for ANDRITZ HYDRO in-
cludes design, supply, installation super-
vision, and commissioning of the Francis
turbines, generators, main transformers,
isolated bus ducts, as well as control and
protection systems. The security, access
control and telecommunication systems for
both the main and eco power houses are
View of powerhouse, dam and area also included within the scope of supply.HYDRONEWS NO. 31 / 2017 SITE REPORTS 25
GY Cross section drawing Lowering of rotor unit #1
© Odebrecht
ANGOLA
The time schedule was challenging from Corporate social responsibility is taken very
the very beginning of the project, with the seriously by ANDRITZ HYDRO and during the
hydraulic development completed within the site works at Laúca hydropower plant, sev-
first four months and the site delivery of the eral important CSR activities are taking place.
embedded parts started in 2014. A complex A permanent training center was built di-
sourcing concept was employed to fulfil the rectly at the Laúca site with the objective of
very demanding delivery schedule, expedit- preparing technicians for operations and
ing shop assemblies and functional inspec- maintenance activities – and the commercial
tions at the workshops. operation of the plant itself – but also to train
local people for future power generation and
After a commissioning phase of two months transmission projects in Angola. ANDRITZ
Laúca | Angola
and successful first synchronization of unit #1 HYDRO completely furnished three laborato-
the inauguration ceremony took place in the ries for this training center. Technical data:
presence of President José Eduardo dos Total output: 2,070 MW
Santos on August 4th, 2017. Commissioning AUTHOR Scope: 6 × 338 MW (Main)
of the remaining units is being conducted at Joachim Gütler 1 × 42 MW (Eco)
two-monthly intervals. All six main units will be hydronews@andritz.com
Voltage: 6 × 18 kV (Main)
in commercial operation by mid-2018. With a 1 × 15 kV (Eco)
total capacity of 2,070 MW, HPP Laúca will Head: 200 m (Main)
produce approximately 8,600 GWh of renew- 118 m (Eco)
able energy per year – enough to supply about Speed: 200 rpm (Main)
8 mio. Angolan households – making a signif- 233.77 rpm (Eco)
Experience
icant contribution to the fast growing demand further content Runner diameter: 4,790 mm (Main)
of the country. 3,220 mm (Eco)26 SITE REPORTS NO. 31 / 2017 HYDRONEWS
SITE REPORTS DONE
PIMENTAL
WITHIN
364
DAYS
BRAZIL – Pimental hydropower plant, locat-
ed on the Xingu River in Brazil, is the com-
plementary powerhouse of the Belo Monte
Hydroelectric Plant. Belo Monte is the sec-
ond largest hydropower plant in Brazil and
the fourth largest in the world. With six With 18 spillway gates, a total size of
38.8 MW generating units, all supplied by 445.5 m and a nominal flow of 62,000 m³/s,
ANDRITZ HYDRO, the Pimental hydropower HPP Pimental has one of the largest
station was fully completed at the beginning spillways in the world. Operating since
of 2017 and is now in commercial operation. July 30, 2015, its erection involved an im-
pressive 8,500 tons of equipment and river
ANDRITZ HYDRO received the contract diversion was completed in only 364 work-
for the Pimental hydropower plant in 2011. ing days.
The contractual scope of supply included six
38.8 MW Bulb turbine units, six 40.9 MVA The dedication, hard work and commit-
horizontal generator units, six speed regula- ment of the ANDRITZ HYDRO team was
tors, six excitation systems, automation con- reflected in a record 387 consecutive days
trol and protection systems, electrical power without any accidents, a result that reflects
systems, mechanical auxiliaries, six emer- ANDRITZ HYDRO’s working principles and
gency gates, and two cranes for the power high quality of work.
house.
Located in Altamira, in Pará state, the final
unit (GU #6) went into operation in the first
week of January 2017.
Installation of Bulb generator
Delivery of the final environmental report in
April c oncluded the company’s contractual
AUTHOR
requirements to the customer, Norte Energia.
In June 2017, the Turbine Performance Cristiano Del Nero and
Luciano Di Domenico
Test was carried out, surpassing the con - hydronews@andritz.com
tractual specifications.
Pimental | Brazil
After the power plant was officially handed Technical data:
over to the customer and put into commercial Total output: 233 MW
operation, ANDRITZ HYDRO executed the Scope: 6 × 38.8 MW
final milestone of the plant’s development – 6 × 40.9 MVA
the dismantling of the lodges, the construc- Head: 11.4 m
tion site and the administrative building. All Speed: 100 rpm Experience
equipment and furniture was given to neigh- Runner diameter: 6,450 mm further content
boring schools and charity institutions.HYDRONEWS NO. 31 / 2017 SITE REPORTS 27
SITE REPORTS
PROVIDING
ABOUT
SOGAMOSO
COLOMBIA – In 2010, ANDRITZ HYDRO
signed a contract with ISAGEN S.A. E.S.P.
for the supply of the electro- mechanical
equipment for a new hydropower plant on
the Sogamoso River in the north-eastern part
of Colombia. The contract with ANDRITZ
HYDRO comprised the delivery of three
Francis turbines with a capacity of 295 MW
8%
Acceptance Certificate (FAC) for the delivery HYDRO and strengthens the leading position
each including a fully homologous model from ANDRITZ HYDRO. A cavitation inspec- of the company in the Colombian hydropower
test, as well as cylindrical gates, electronic tion after 8,000 hours of operation was also market.
and hydraulic turbine governors, and the satisfactorily completed on all three units.
mechanical balance of plant equipment for AUTHOR
the turbine. Supervision of installation and A particular feature of these units is the Andres Hernandez
commissioning complete the contractual use of a cylindrical gate with a diameter of hydronews@andritz.com
terms. The contract was executed by a 6,400 mm as a closing device between the
team of ANDRITZ HYDRO locations in guide vanes and stay vanes. Closing and
Germany and Colombia. opening of the gate is performed by six hy-
draulically-operated servomotors, which are Experience
further content
The hydropower plant was built between kept synchronous without the use of mecha
the years 2009 and 2014 and has been in nical linkages but by means of an ANDRITZ
commercial operation since then. By the HYDRO proprietary control system.
end of 2016 all three units had successfully
completed the warranty period, thus leading With 885 MW of nominal capacity and an
up to the March 2017 signature of the Final annual average generation of 5,056 GWh
per year, this is the fourth largest hydroelec-
Aerial view construction site and river tric power plant in Colombia, providing the
country with about 8% of the energy con-
sumed by Colombians each year. The units
of HPP Sogamoso, which are currently
the largest in operation in Colombia, are op-
erating stably and safely within an ample
Sogamoso | Colombia
performance range, thus providing not only
power generation but also contributing to Technical data:
grid stability and regulation. Max. total output: 885 MW
Scope: 3 × 295 MW
By providing state-of-the-art products and Head: 155 m
services in close cooperation with the custom- Speed: 163.64 rpm
ers, the successful completion of this project Runner diameter: 5,100 mm
again confirms the commitment of ANDRITZ28 SITE REPORTS NO. 31 / 2017 HYDRONEWS
SITE REPORTS
XAYABURI
THREE
THREE
Draft tube installation
MILLI
LAO PDR – In 2012, ANDRITZ HYDRO re-
ceived an order from CH. Karnchang (Lao)
Company Ltd. for the supply of electro-
mechanical equipment for the Xayaburi run-
of-river hydropower station on the Mekong
River. ANDRITZ HYDRO’s scope of supply
comprises the delivery of seven 175 MW
Kaplan turbines (hydroelectric power pro-
duction for EGAT, Thailand), and one
60 MW Kaplan turbine (hydroelectric power tenth of the total construction costs of the developed oil-free hubs and has applied
production for EDL, Lao PDR), as well as entire power plant are invested in this en- them in numerous projects over many years.
generators, governors, automation systems, vironmental requirement. With such a design, the risk of oil leakage
and auxiliary equipment. With a planned into the river water is significantly reduced
capacity of 1,285 MW, HPP Xayaburi will In times of increasing demand for ever while the blade seal arrangement prevents
produce more than 7,000 GWh/year of more exceptional ecological performance,
water exchange. The oil-free hub design has
electricity, equivalent to about more than the release of even very small amounts of oil a major positive impact on the water qual-
3 mio. households. into river courses has to be avoided. With ity and thus on the environment. For HPP
the objective of reducing the quantity of oil Xayaburi, the use of the oil-free hub concept
The Mekong is one of the most biologi- used in hydro turbines, ANDRITZ HYDRO will save about 14,000 liters of oil per unit.
cally diverse rivers in the world. About
60 mio. people along the Mekong make
Navigation lock, spillway, intermediate block, powerhouse and fish ladder
their livelihood from the river and its fish pop-
ulation. Therefore specially designed fish-
friendly turbines will be installed at HPP
© CH.Karnchang (Lao) Company Ltd.
Xayaburi. They are characterized by fewer
runner blades, lower rotational speed and
a different operating scheme.
( COVER STORY page 18)
A fish ladder with a specially designed fish
lock system is also foreseen in order to al-
low migration of the fish upstream. One-HYDRONEWS NO. 31 / 2017 SITE REPORTS 29
Experience
further content
ION
HOUSEHOLDS Xayaburi | Lao PDR
Technical data:
Total output: 1,285 MW
Scope: 7 × 175 MW
1 × 60 MW
Voltage: 16 kV / 13.8 kV
Head: 39 m
Speed: 83.33 rpm / 150 rpm
Runner diameter: 8,600 mm
5,050 mm
Currently, the turbines and generators are
in the manufacturing process. The power- UPDATE
house overhead cranes (2 × 380 tons and
2 × 80 tons) have already been installed and
are in operation. All eight turbine draft tubes
have also been installed while the first four
main transformers are currently being trans-
ported to the site. Start of commercial op-
eration at HPP Xayaburi is scheduled for
October 2019.
HPP Xayaburi is an important project on
the mighty Mekong River and with its suc-
cessful execution ANDRITZ HYDRO proves
once again its leading position in the Lao
hydropower market and the high quality of
its state-of-the-art technology. ANDRITZ
HYDRO is proud to contribute to the devel- Factory Acceptance Test (FAT)
opment of the huge hydropower potential of Beginning of June 2017, the first runner at HPP
the country. Xayaburi has successfully completed the
Factory Acceptance Test (FAT). To date, it is
AUTHOR the largest and most powerful oil-free runner
ever built.
Harald Taubenschmid
hydronews@andritz.com30 SITE REPORTS NO. 31 / 2017 HYDRONEWS
SITE REPORTS
MWADINGUSHA
Experience
ENERGY
further content
INTO THE
JUNGLE
Mwadingusha | DR Congo
Technical data:
Total output: 78 MW
Scope: 4 × 13.05 MW
ANDRITZ HYDRO. Up until today no ma- Voltage: 6.6 kV
jor overhaul of the hydropower plant and its Head: 111 m
equipment had been conducted. Speed: 375 rpm
Runner diameter: 1,320 mm
For ANDRITZ HYDRO, the scope of sup-
ply comprises replacement of four turbine
units, generators, governors, inlet valves, equipment will be delivered to the site by
exciters, voltage regulators, and draft tube mid-October 2017.
stop logs. This includes dismantling, erec-
tion, and commissioning. Transformers and Site mobilization has started mid-August
DR CONGO – In September 2016, an the balance of plant are within the scope 2017 and will be followed by dismantling of
ANDRITZ HYDRO-led consortium was of the consortium partner. The original dis- the existing equipment through until April
awarded a contract for the refurbishment charge volume and net head remain un- 2018. The contractual commissioning of
of the existing Mwadingusha hydropower changed, but there will nonetheless be a the first unit is scheduled for February 2019
plant in Katanga Province of DR Congo. power increase of about 10% from 11.8 MW and by the end of the same year all four
This hydropower plant is equipped with six to 13.05 MW per unit. units should be commissioned.
Francis units with a capacity of 11.8 MW
each. Financed by Ivanhoe Mines, the fi- All major equipment, such as the tur- After completion and hand over, HPP
nal client is Société Nationale d’Electricité bines, inlet valves, stop logs, and genera- Mwandingusha will supply electrical ener-
(SNEL), while the owner’s engineer is the tors, have already been designed and are gy to the Congo National Grid as well as to
Swiss consulting firm Stucky. in the manufacturing process. Due to road the copper mining activities at the Kamoa-
infrastructure conditions in DR Congo, the Kakula project by Ivanhoe mines.
The Mwadingusha hydropower plant is transport of the equipment to the site is go-
located on the river of Lufira. It was original- ing to be very challenging and can only be AUTHOR
ly commissioned in 1930, and the original done in the dry season, from mid-April to
Igor Nikolov
supplier was Charmilles, Switzerland, now mid-October. Therefore most of the heavy hydronews@andritz.comHYDRONEWS NO. 31 / 2017 SITE REPORTS 31
SITE REPORTS
HONGRIN LÉMAN EXTENSION
30 GWh INTO THE GRID
SWITZERLAND – The extension of the
pumped storage plant Hongrin Léman,
owned by Forces Motrices Hongrin-Léman
S.A. (FMHL), has been fully operational
since early 2017. This pumped storage
scheme uses the Lake of Hongrin and Lake
Geneva as reservoirs and is expected to pro-
vide about 1,000 GWh of peak power per
year, supplying more than 300,000 house-
holds with electricity. 480 MW, the capacity of the plant was almost lake Hongrin. However, due to a tempera-
doubled with this extension. ture drop in Europe between 30th December,
In 2011, ANDRITZ HYDRO was contract- 2016, and 8th January, 2017, and the simul
ed to deliver two new ternary generating Pumped storage is considered to be an in- taneous low availability of large volumes of
sets, including motor generators, Pelton tur- dispensable complement to renewable energy other forms of renewable energy, the scheme
bines, digital and oil hydraulic governors, as sources; it can provide power at short notice was able to provide about 30 GWh of electri-
well as the cooling water system of the entire and at large capacities, which is mandatory for cal energy to the grid at short notice, further
plant. Furthermore, as part of a consortium, the stability of the European grid. FMHL con- proving the advantages of the pumped stor-
ANDRITZ HYDRO delivered four of the six siders the development of renewable energy age concept.
AUTHOR
high head spherical valves needed, including sources will increase the demand for rapid grid
Stefan Kristukat
oil pressure units. Besides design and manu- stabilization even further in the future. hydronews@andritz.com
facturing, the scope of supply also comprised
installation, commissioning, and efficiency Despite winter time, the mild weather during Experience
testing of the equipment. Strain gauge tests the last two weeks in 2016 entailed a relative- further content
have been conducted to establish the runner ly low power consumption in Europe allowing
bucket vibration behavior at various operating the Hongrin Léman pumped storage scheme
points of the unit. With a total output of about to fill its almost empty reservoir, the artificial
Ternary Generating Unit
generator-motor, turbine and pump arranged
along the same shaft line; only one electric ma-
Exciter chine acting as motor; no reversal of rotation
needed when operation is changed from pump
Synchronous
to turbine or vice versa; short transition times
Generator-
from one mode of operation to the other;
Motor
Turbine
Hongrin Léman | Switzerland
Coupler Technical data:
Total output FMHL: 480 MW
Extension output: 2 × 120 MW
Voltage: 15.5 kV
Pump Head: 880 m
Speed: 500 rpmYou can also read
