Offshore Logistics

For maximum yield

Service Operation Vessels

Traditionally, the farther a wind farm was from shore, the more expensive its maintenance. To solve this, Siemens Gamesa has introduced service operation vessels that work as floating workshops, drastically cutting costs.

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Are you interested in our offshore service logistics solutions? Please contact our service team.

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Service category

Logistics

Experience since

1991

Weather uptime

90% uptime

Customer benefit

Availability

Key Facts

Improves offshore wind power plant availability by greater efficiency
Less weather downtime due to safe operation at high waves
Fast response to service needs by operation within the boundaries of your wind farm

Recommended for

Complex and large far shore offshore wind farms

Offshore logistic solutions

Jack Up Vessel – Handling large components

Crew Transfer Vessel – For wind farms close to shore

Helicopter – Fast access via air

Taking offshore service into new waters

We have called on three decades of expertise in wind energy to develop service operation vessels (SOVs) together with suppliers such as Esvagt A/S. Innovative service concepts like these open new possibilities for the future.

Siemens Gamesa’s first SOVs were christened in 2015: Esvagt Faraday and Froude. The success story continued in 2016 and 17 when the Windea vessels La Cour and Leibnitz went operational at Gemini, Sandbank and Dan Tysk.

Esvagt Siemens Gamesa was first in the industry to introduce these purpose-built SOVs for servicing offshore wind power plants. We work together with experienced ship-owning and construction companies.

Technical specifications for Esvagt Froude and Esvagt Faraday, operational at the Butendiek wind farm in the North Sea, and Baltic II, in the Baltic Sea:

Space on deck	305 m²
Capacity for	8 20-foot-high containers
Accommodation	40 technicians
Optimal Distance	50 - 100 km from shore
Time at sea	up to 3 weeks
Effective working hours	10 h during a 12 h shift
Weather downtime	10 - 15 %
Transfer between turbines	30 minutes
Operational wave height	up to 2.5 m

Integrated service logistics

Integrated logistics are central for achieving maximum yield and overcoming challenging conditions when servicing offshore wind farms. Therefore, we tailor logistics to the individual requirements of each project at sea – no matter whether they are near or far from shore. Customers can choose from service operations vessels, helicopter services, or crew transfer vessels for regular maintenance operations. When a heavy component exchange is needed, chartered jack-up vessels can be deployed quickly.

How does the armada of service vessels and airborne solutions results in a more reliable and efficient service?

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Service highlights

Remote diagnostic support

Service planning is supported by remote diagnostics, ensuring efficient use of time at sea. When the vessel returns to port, spare parts and technicians are already there so it can turn around faster.

Hydraulic gangway system

There’s room for 40 technicians on board and where other vessels can only transfer them to turbines in 1.5-meter waves, the hydraulic Ampelmann gangway system lets them safely “walk to work” in 2.5-meter swells.

Fit for long distances

Turbines located far from shore make daily transit time-consuming and costly. The solution is a vessel that can stay at sea for up to three weeks, with technicians working 10 hours in a 12-hour shift.

Spare parts on board

With 305 square meters of space on deck and capacity for eight 20-foot high containers, the service operation vessel can hold all necessary spare parts and service materials.

High seas, low costs

Achim Berge Olsen, Managing Director of wpd Offshore GmbH, knows that in order to lower offshore costs, it’s important to save money on turbine maintenance. That’s why wpd commissioned Siemens Gamesa to develop a tailor-made concept for the maintenance and repairs of the wind power plant Butendiek. The resulting service SOV can remain at sea near the wind park for several weeks at a time, its cutting-edge technology allowing for a faster, safer, and more efficient service.

“It can do two things that normal service ships can’t do,” says Olsen. “It can stay in the wind park even in rough weather and wind conditions, and – thanks to the hydraulic bridge – reach the turbines more often than is possible using normal entry systems. Today, this makes it the most effective way to service offshore wind power plants. We are convinced of that.”

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If you’re interested in becoming a client

The solutions we provide are driven by the benefits they deliver. This applies as much to our pursuit of absolute safety as to maximizing your return. Whether by inventing a new technology, evolving an existing product, or simply finding a smarter way of working, we strive to lower costs and raise returns on investments.

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If you’re an existing client

Our experts are on hand to help with any questions you have. Email us, or login to our customer service portals. Here you’ll be able to monitor configuration, production, and agreements for your wind power plants, and find relevant news from Siemens Gamesa Renewable Energy.

Wind Dialogue

This customer service portal enables you to monitor configuration, production, and agreements for any wind power plant supplied by former Siemens Wind Power.

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Customer Portal

Customers of former Gamesa Corporación Tecnológica products can access an intuitive repository of reports and management tools to improve the efficiency of their wind turbines and wind farms on the following platform:

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If you want to know more about our other services

This service offering is part of a comprehensive portfolio that we have compiled over three decades of wind service tradition. At Siemens Gamesa, turbines and operational services come from a single source to make it easy for you to get the maximum performance out of your wind power plants.

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As a true lifetime service partner, Siemens Gamesa has pioneered fleet upgrades that combine innovation and operational excellence. Our engineer-driven Annual Energy Production (AEP) upgrades, wind turbine retrofits, and other optimization solutions have been developed to meet your needs.

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Spares and repairs

Siemens Gamesa has the global scale and operational experience to support you wherever you need us, and a comprehensive portfolio of spares (new and refurbished), repairs, reconditioning services as well as advance main component exchange processes – all built on the highest safety and quality standards. A repairs expert you can rely on to deliver a solution long before it might become necessary. Get the most out of your turbines, all the time.