WPNL 202101

© WINDPARK FRYLÂN
Offshore
Wind Farm News
© TENNET HOLLANDSE KUSTNOORD
2
1
Fryslân
At the end of July the construction
of the 383 MW
Fryslân Wind Farm was completed
by Zuiderzeewind, a
consortium of Van Oord
Offshore Wind and Siemens
Gamesa Renewable Energy.
The wind farm is currently the
largest wind farm built in a
lake.
The wind farm is a project by
Windpark Fryslân BV. It features
89 Siemens Gamesa wind
turbines, each with a hub
height of 115 meters, a tip
height of 180 meters and an installed
capacity of 4.3 MW.
Due to the width of the locks
around the IJsselmeer lake and
the low water depths, no conventional
turbine installation
vessel could be used. The wind
turbines were installed simultaneously
by the two installation
platforms Sarens Soccer
Pitch and Tom-Wim. The components
were transported via a
feeder system from different
ports.
The first turbine already started
feeding power to the grid in
April this year. The power is
collected in the new transformer
station in Breezanddijk.
The wind farm is expected to
produce about 1,500 GWh of
sustainable wind energy per
year. The power is purchased
by Eneco.
Hollandse Kust Noord
Hollandse Kust Noord (HKN)
is a 759 MW offshore wind
project by CrossWind, a
joint-venture between Shell
and Eneco. The wind farm site
is located approximately 18 kilometres
off the Dutch west
coast, near Egmond aan Zee.
Sixty-nine Siemens Gamesa
type SG 11.0-200 DD, 11 MW
wind turbines will be installed
on monopile foundations. The
wind farm is due to become
operational in 2023.
Van Oord was awarded the
Balance of Plant contract. In
July this year, Van Oord selected
Dutch cable manufacturer
Twentsche Kabelfabriek (TKF)
to supply 140 km of 66 kV inter-array
cables.
In September, a start was
made on land, on the beaches
of Heemskerk and Wijk aan
Zee, with the construction of a
raised temporary work area.
This temporary elevation is
necessary to drill boreholes
under the dunes. They will
house the casing pipes in
which the export cables will
soon be pulled for the connection
of the HKN wind farm and
also HK (west Alpha).
. 3
Hollandse Kust Zuid
Offshore construction is in full
progress at the 1.5 GW
Hollandse Kust Zuid (HKZ)
Offshore Wind Farm. In July of
this year, the first batch of
foundations left for the construction
site. The foundations
are manufactured by Sif at
Maasvlakte 2. Seaway 7 is responsible
for the transport and
installation of the foundations.
The company is using its installation
vessel Seaway
Strashnov.
HKZ will feature 140 wind turbines
on TP-less monopile
foundations. Siemens is supplying
140 of its newly developed
type SG 11.0-200 DD, 11
MW wind turbine. The company
recently started serial production
of the wind turbines at
the new production site in
Cuxhaven, Germany.
Hollandse Kust Zuid is being
built around 18 to 36 kilometers
from the Dutch coast, between
The Hague and
Zandvoort. The project is developed
by Vattenfall. In June
this year, BASF joined as shareholder
(49.5%). The first
turbines are scheduled to be
commissioned in the spring of
2022, with all turbines expected
online by the summer of
2023. The electricity from the
turbines is collected and
transformed via two 700 MW
offshore transformer platforms
by TenneT. The jackets
for the two stations are already
in place. These platforms
are each connected via
220 kV AC cables to a new
land station at Maasvlakte 2.
4
Borssele 1&2
Ørsted’s first offshore wind
farm in the Netherlands,
Borssele 1&2, was officially
opened on Monday 6
September. The wind farm, located
approximately 23 km off
the coast at Westkapelle in the
province of Zeeland, has already
been operating since Q4
2020 but the opening was delayed
due to COVID-19
restrictions.
Ørsted won the tender in 2016
with a winning bid of 72.7 EUR
per MWh. In May this year,
Norges Bank Investment
Management officially became
50% shareholder in the wind
farm.
The project features 94
Siemens Gamesa SG 8.0-167
DD, 8 MW wind turbines on
monopile foundations in an
area of 112 km2 with water
depths varying between 14
and 36 meters. The main contractors
were Van Oord and
DEME Offshore (transport &
installation), Sif, EEW SPC,
EEW OSB and Bladt Industries
(foundations) and Nexans (cables).
The wind farm is connected
to the 380 kV high-voltage
land station in Borssele.
With 752 MW installed capacity,
Borssele 1&2 is the largest
operating offshore wind farm
in the Netherlands at the moment
and will be till Hollandse
Kust Zuid is completed and
operating.
1&2/© ØRSTED
BORSSELE
34 | 01-2021