Construction—North America—Mexico—Wind Energy Structures
DSI supplies Wire EX Tendons for one of the highest Capacity Wind Parks
in Mexico: Ventikas I&II
In April 2014, Acciona Energy was awarded a new wind farm project known as Ventikas I&II. The wind park is one of the
highest capacity wind farms in Mexico. Acciona will operate the new park for 20 years. The project is located approximately
60km east of the town of General Bravo in the federal state of Nuevo León, roughly 80km from the US border.
Within the scope of the project, two wind parks
with a capacity of 126MW each are being
built. A total of 84 wind towers with 120m
high prefabricated concrete towers and Type
AW 116/3000 turbines are being erected.
Each of the turbines has a capacity of 3MW,
and the rotor diameters measure 116m.
DSI was awarded a contract to produce and
supply Wire EX Tendons for the two wind
parks, Ventikas I and II. The prefabricated
tendons were produced in DSI Construction’s
facility in Langenfeld, Germany and installed
and tensioned by DSI Construction Spain,
Acciona’s partner for wind energy projects.
A total of 504 Wire EX Tendons were
necessary to prestress the wind towers.
In order to perform the installation and
stressing work, two of DSI Spain’s specialists
stayed on the jobsite for 3 months.
All of the Wire EX Tendons were installed
and post-tensioned in 3 shifts in approximately
7 months. This corresponds to an average
installation pace of 3 wind towers per
week – which is considered to be excellent
productivity.
The DSI specialists cooperated with two
local installation teams. The first team was
responsible for hoisting the Wire EX Tendons
inside the towers from the bottom up.
The second team carried out the stressing
work on the tendons following installation.
Thanks to the excellent cooperation and
the supervision and guidance provided by
DSI Spain’s employees, work was successfully
completed within the scheduled time frame.
Operator
Acciona Energy S.A., Mexico
Owner
Joint Venture, consisting of
Cemex S.A.B. de C.V. and
Fisterra Energy México as well as
private investors, all of them Mexico
General Contractor
EMEPH STEEL SL., Mexico
DSI Units
DYWIDAG Sistemas Constructivos
S.A., Spain and DYWIDAG-Systems
International GmbH,
BU Post-Tensioning, Germany
DSI Scope
Production, supply, installation
DSI Products
504 Wire EX Tendons
DSI finished the installation of the
Wire EX Tendons in November 2015 –
at that time, 40% of the towers were either
already producing energy or in the testing
phase.
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