3. OFFSHORE SUBSTATION
DESIGN
COMPLETE SUBSTATION DESIGNS TAILORED FOR YOUR
OFFSHORE WIND FARM
Ramboll is the world leader in off- on safety and cost effective de- • specification of all auxiliary equip-
shore foundation design for wind sign. The development and design ment such as cranes, emergency
turbines. Our specialised engineers of the substation is highly depend- diesel systems and workshops
carry vast expertise within devel- ent on the actual location and the
opment and design of offshore fa- operation and maintenance philos- • accommodation facilities and heli
cilities. ophy for the substation and for the deck if required
wind farm. • installation engineering for topside
This covers minimum facilities with
low manning frequency as well as and substructure as well as cable
larger facilities that are permanent- pull-in planning
ly manned with frequent access via
sea or air. Multidiscipline services
Ramboll provides multidisciplinary Substructure design
engineering consultancy for all are-
as of the offshore substation: The substructure design can be a
Offshore substations
simple steel mono pile, a larger
More and larger wind farms are be- • definition of design standards and jacket for deeper waters and higher
ing located offshore. The capacity codes topside loads or it can be a con-
of these wind farms is of the order crete gravity base structure. At
of several hundreds of MW. To min- • general layout development with Ramboll we have more than 25
imise the electrical transmission consideration of safety, mechanical years of experience within offshore
losses and the cable costs, the tur- handling, operation and mainte- substructure design.
bines in such wind farms are elec- nance
The structural design is carried out
trically connected to an offshore
• implementation of electrical equip- using Ramboll’s own state-of-the-
substation provided with a step-up
ment such as step-up transformer, art software programme ROSAP. All
transformer. The transmission to
reactors, GIS switchgear, LV-switch- topsides and substructure design
shore is then achieved by an HV
gear, UPS system and control sys- are performed within a fully inte-
AC connection or an HVDC link.
tem grated multi-discipline 3D system
With Ramboll as your partner, our (e.g. PDS, PDMS, Tekla or Solid-
extensive offshore experience will • substructure design including works).
be implemented into the design of j-tubes for cables, boat landings
your substation with strong focus and foundation
Finalised and ongoing wind farm offshore sub station projects
• Anholt substation - topside and substructure - Detailed design (DK)
• Horns Rev 2 substation - topside and substructure – FEED (DK)
• Robin Rigg substation - topside and substructure – Detailed design (UK)
• Nordergrunde substation - topside and substructure – Detailed design (D)
• Sheringham Shoal - substation substructure – Detail design (UK)
• Greater Gabbard (UK)
• Bligh Bank (UK)
• NordSee Ost - substation substructure – Concept study (D)
More information and contact
Peter Busch Nielsen
Senior Project Manager
M: +45 5161 7238
pbn@ramboll.com
4. Design codes
The designs can be performed ac-
cording to any acknowledged
standard e.g. DNV, Germanischer
Lloyd, IEC, NFPA, ISO or other in-
ternational codes, as required to
have the project certified by a Cer-
tifying Authority.
Optimum solutions
Ramboll is the ideal partner for car-
rying out studies to determine the
kind of facility that is most advanta-
geous at a given location.
Our long track record of feasibility
studies, front-end engineering de-
sign and detailed designs for cli-
ents’ operating facilities offshore
will ensure that we will develop the
optimum solution.
Anholt Offshore Wind Farm
Our most recent major substation
project is the Anholt substation in
Denmark. When installed the
400MW wind farm will become one
of the largest in the world today.
WHO ARE WE?
Ramboll is e a leading engineering,
design and consultancy company
founded in Denmark in 1945. Today
we employ approximately 9,000
ambitious experts with a strong
presence in Northern Europe, India,
Russia and the Middle East. With
almost 200 offices in 20 countries we
emphasise local experience combined
with a global knowledge base..We
constantly strive to achieve inspiring
and exacting solutions that make a
genuine difference to our customers,
the end-users and society as a whole.
www.ramboll.com
