Post on 10-Mar-2020
Offshore Update 11th July 2018
HAPPENING ELSEWHERE
KRIEGERS FLAK (DK37) The two 25km cables between the Baltic 2 and Kriegers Flak wind farms have been laid and pulled into the platforms. 5th Jul 2018
ARKONA (DE46) The first of the 60 SWT-6.0-154 wind turbines was installed by SEA CHALLENGER. 7th Jul 2018
HKZ I&II (NL0D) Petrofac won the EPCI contract to construct the 700MW HKZ alpha offshore transformer station, due to be completed in 2021. 10th Jul 2018
BEATRICE (UK53) Seaway Heavy Lifting has installed the last of 86 jacket foundations. 11th Jul 2018
HORNSEA TWO (UK1U) Ørsted has contracted NKT to supply 190km of 220kV export cabling, EEW has been appointed to produce 165 monopile founda-
tions and ABB landed a contract to provide switchgear, transformers, reactors and harmonic filters.
11th Jul 2018
HKN I&II (NL0F) The tender for the subsea cables and platforms for the Hollandse Kust (noord) project will start towards the end of 2018. Q4 2018
(London Array Source: Orsted) Click on a project name, turbine, vessel or map to find out more on the 4C Offshore website
LOOKING FORWARD
TURBINES NEEDING TLC
Siemens Gamesa (SGRE) has commenced the nine month
blade repair campaign at the 630MW London Array off-
shore wind farm. The vessel MPI Adventure accompanied
by Voss Sampson will be carrying out emergency blade
repairs on 140 turbines over the next nine months. Work
is estimated to take approximately two days per turbine
and will be completed on the jack-up deck. The repairs
and upgrades are likely to include fitting rubber edgings,
exchanging lightning receptors, changing DinoTails and
spot repairs. This is one of three major blade campaigns
SGRE is facing due to leading edge erosion on the SWT-3.6
-210 turbines and similar repairs are also required at the
Anholt and West of Duddon Sands projects. But SGRE is
not the only one, NordzeeWind awarded Alpha Offshore
Service A/S a blade repair contract for the Vestas 3MW
V90 turbines at the Egmond aan Zee wind farm. Works
include tip replacement, laminate repairs, lightning dam-
age and leading edge protection system upgrades. A total
of 80 blades will undergo repairs over the summer.
KINCARDINE KICKS OFF CONSTRUCTION
Preparations for installation of the first floating wind tur-
bine for the 50MW Kincardine project are progressing.
The ‘float-off’ of the WindFloat foundation is taking place
today in Edinburgh. According to sources, the Offshore
Heavy Transport vessel Albatross will tug the structure to
Dundee for final assembly of the V80-2MW turbine. All
marine operations are being carried out by Bourbon who
are due commence installation of the moorings imminent-
ly followed by ‘hook-up’ in August. Since Consent was
granted in early 2017 the project has suffered a number of
delays and the decision to install the 2MW turbine is cru-
cial for the developer to meet the Renewables Obligation
Certificate deadline this autumn. According to the con-
struction plan the turbine will initially be installed for up to
3 years with possible extension if the foundation is recerti-
fied. Installation of the following six 8.4MW turbines will
take place over two campaigns in 2019 and 2020.
INSTALLATION SUCCESS IN CHINA
The final turbine has been installed at the 79.4MW Fuqing
Xinghua Bay Phase I wind farm. Located in the Taiwan
Strait, the area has a complex seabed, a large tidal range
of 4.28m and is prone to typhoons and monsoons. The
project features 14 turbines from multiple manufactures
including 3x Haliade 150-6MW, 2x Goldwind 6.7MW, 2x H
151-5MW, 2x TZ5000 (Taiyuan Heavy Industry), 1x 5MW
(Dongfang), and 2x 6MW Shanghai Electric. The final two
turbines are designed by Mingyang Wind Power and
dubbed the world’s largest typhoon resistant turbines.
Typhoons represent a specific challenge facing offshore
wind in South East Asia. Typhoons bring extreme wind
speeds, rapid changes in wind direction and high storm
surges. MHI Vestas recently confirmed that its 9MW tur-
bine platform will be ready to take on typhoons in Taiwan
by 2020. The Fuqing Xinghua Bay prototype project will
provide important data for future projects.
RAMPION READIES FOR CABLE REPLACEMENT
The end is nearly in sight as E.ON oversees installation of
the second replacement export cable at the Rampion
offshore wind farm. The original export cables were sup-
plied by LS Cable Korea and installed by VBMS in 2016 but
the developer has endured multiple set backs with the
transmission system during construction. The eastern
export cable had to be replaced earlier this year following
recurring issues associated with the fibre optic core. Simi-
lar damage was also discovered in the western export
cable which according to E.ON would ‘compromise its
performance.’ Operations to excavate the cable trench for
the new western cable are underway by Capall Mara and
C59 Emotion. Cable lay vessel Atalanti is expected to arrive
onsite to start cable installation on 25th July. According to
E.ON the project will be fully operational by the end of
2018 and Ofgem stated that the Invitation to Tender stage
for the Rampion OFTO is due to take place this year.
MORAY WEST APPLIES FOR CONSENT
Moray Offshore Windfarm (West) Ltd. (MOWL) has ap-
plied to Scottish Ministers for consent to develop an off-
shore wind farm in the Moray Firth. The Moray West site
covers an area of 225km2, 22.5km from the Caithness
coastline. According to the consent documents the pro-
ject will feature up to 85 turbines, with a max rotor diame-
ter of 250m and max tip height of 285m. A range of foun-
dations are being considered including monopiles, jackets,
suction buckets and gravity based foundations. The trans-
mission system will feature up to 275 km of 33-72.5 kV
array cables, two offshore substations with up to 15 km of
33-400kV subsea interconnector cabling and up to two
65km long 132-400kV subsea export cables. It is planned
that offshore construction will take place from 2022 for 36
months. MOWL is owned by EDP Renováveis who are also
developing the Moray East project which is due to reach
financial close during Autumn 2018.
GLOBAL TECH 1 BACK TO FULL POWER
Global Tech 1 have re-installed a nacelle which was dis-
mantled in April following the detection of abnormalities
by the condition monitoring system. 4C understands that
the work was undertaken by MPI Enterprise. The 400MW
project was one of the first offshore wind farms to be built
in the German North Sea. It features 80 5MW AD 5-116
turbines, mounted on tripod foundations which have been
in operation since 2015. This is not the first issue GT1 has
faced; in 2016 a total of eight nacelles were de-installed.
After an intensive service programme in Bremerhaven,
they were thoroughly tested on the local test stand area
before being reinstalled during the summer last year. GT1
stated that they will not speculate on any potential causes
and await the results of the root cause analysis.
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