POWER September 2020 - 33

TOP PLANT
POWER POINTS
Winning Attributes
✔ WindFloat Atlantic's 8.4-MW wind
turbines are the world's largest ever
installed on a floating platform.
✔ WindFloat's mooring technology
allows the floating platforms to
be installed in water more than
100 m deep, and the design offers
stability in adverse weather and sea
conditions.
1. The first WindFloat Atlantic platform was loaded out at Navantia's facilities in Fene, Spain.
The floating platform, designed by Principle Power's engineering team, is a major achievement
for the offshore wind industry. Courtesy: Principle Power Inc.
distance between columns of 50 m. Drydock
assembly provided significant logistical
and financial savings, according to
EDP Renewables. Once assembled, the
platforms were towed to their permanent
mooring sites using standard tug boats.
WindFloat's
mooring
technology
allows
the platforms to be installed in water
more than 100 m deep, and its design
offers stability in adverse weather and
sea conditions, as the prototype proved.
The revolutionary design will allow much
greater utilization of vast offshore wind resources.
The consortium expects the successful
installation and commissioning of
WindFloat Atlantic to be a springboard for
future offshore wind development. The
group believes the model is replicable in
other areas where adverse seabed conditions
or significant water depth mean that
traditional bottom-fixed offshore wind
technology is not an option.
EDP Renewables said the project had
abundant support from public and private
institutions, which was a big reason
why several leading companies decided
to take part in the initiative. The Government
of Portugal, European Commission,
and the European Investment Bank
all helped by providing financial support
for the first-of-a-kind project. Other companies
involved in the endeavor included
the joint venture between Navantia/Windar,
the A. Silva Matos Group, Vryhof,
Bourbon Subsea Services, MHI Vestas,
and dynamic cable supplier JDR Cables.
Construction began in October 2018.
One of the main project milestones was
the departure of the first floating structure
from its assembly point in Ferrol in
late summer 2019. The second platform
left port in December 2019. In May 2020,
the last of the three pre-assembled wind
turbine platforms making up the project
left the Port of Ferrol heading for its final
destination 20 km off the coast of PorSeptember
2020 | POWER
tugal. WindFloat Atlantic became fully
operational in July 2020.
Installing WindFloat Atlantic
Vryhof was responsible for delivering
the complete mooring package. " That
includes project management services,
controlling [the] supply chain, and interfacing
between the certification authorities, "
Senol Ozmutlu, projects director
with Vryhof, explained in the first video of
a four-part series about the installation.
" It's a challenging project because
there's no other project as such that we
could refer to, " he said. " But the team
behind this project is very solution oriented
and also extremely competent. "
Bourbon was in charge of the procurement
and installation of the mooring
equipment, and the installation of the
electrical cable on the floating wind turbine.
In Part II of the video series, Hélène
Butat, Bourbon's
operation
manager,
said, " It's my job to get everybody's nose
in the same direction. "
Butat explained that because the project
was a first-of-a-kind, new procedures
had to be created for the job. " It is a real
advantage to have a good team. People
you can trust. People you know their
competence. You know what they are
good at. It's essential. "
In addition to providing its patented
WindFloat technology solution, Principle
Power was responsible for the full engineering
and certification of the platform.
It actively supported fabrication, installation,
and commissioning of the three
units, and will be responsible for operations
and maintenance of the wind farm.
" The big advantage of our floating
technology is that we can use onshore
techniques to install wind turbines, and
then, later on, we can install the set offshore
with the floater and the turbine
ready to spin, " Tiago Godinho, operation
www.powermag.com
✔ Floating platforms open vast new
offshore areas for wind energy
development.
manager with Principle Power, said in the
third video.
The
COVID-19
pandemic
caused
some challenges during the final phases
of installation, but the team overcame
the obstacle. In the fourth episode of the
video series, Butat said, " All the personnel
had to stay in quarantine for seven
days before everybody could join the
vessel. " Once onboard, additional safety
measures were reportedly put in place to
protect personnel.
Butat said there were a lot of interface
meetings between Bourbon, Principle
Power, and Vryhof to develop the best
process for installing the equipment. " It
is a little bit complex, because it's about
the synchronization of several vessels,
as well as subsea operations, " she said.
" Being first movers, of course, there's
a risk, " Jose Pinheiro, WindFloat Atlantic
project director for EDP Renewables, said.
" This is [an] innovative project, so in that
sense, there was always inherent risks to
the deployment of this wind farm. "
But everything came together in the end.
" To see the yellow pieces, the columns,
the beams, and then the wind tower spinning-this
is gorgeous, " said Godinho.
" [A] key advantage was the assembly
technology used: dry-dock assembly provided
significant logistical and financial
savings, and the platforms were towed
using standard tug boats, " Pinheiro
told POWER. " The future potential of
this technology for many places in the
world-starting with almost the entire
Iberian Peninsula-is huge. "
" From three floating platforms, we have
25 MW. Ten years ago, nobody would believe
this can happen, " Ozmutlu said. " This
project is definitely a gamechanger. " ■
-Aaron Larson is POWER's
executive editor.
33
http://www.powermag.com

POWER September 2020

Table of Contents for the Digital Edition of POWER September 2020

Contents
POWER September 2020 - Cover1
POWER September 2020 - Cover2
POWER September 2020 - Contents
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