Siemens has celebrated the official christenings of the offshore wind industry’s first, purpose-built service operation vessels (SOV). The christening events took place in cooperation with Esvagt, owner of the two vessels, in Rostock, Germany, and Hamburg, Germany.
Siemens is the first in the industry to design and commission this new type of vessel specifically engineered to service and maintain far shore wind power plants. Working in concert with Siemens’ offshore logistics concept, advanced data analytics and predictive maintenance programs, the SOVs are designed to help Siemens’ customers secure more uptime and power production from their turbines, thereby helping lower the costs of wind energy.
The Esvagt Froude was the first to be formally christened on 23 June in Rostock and is supporting service and maintenance operations at EnBW’s Baltic II wind farm in the Baltic Sea. On 25 June, the Esvagt Faraday was officially christened in Hamburg and will be deployed for service of wpd’s Butendiek wind farm in the North Sea.
“Wind energy is going to represent a substantial part of the new electricity sources that will come on line in the near and mid-term future,” said Randy Zwirn, CEO of Siemens power generation services.
As new generation of wind farms are located farther from shore, the need is growing for smart, predictive maintenance planning and new approaches for safely providing service and maintenance in more challenging weather conditions, especially in winter months when wind power yield can be high. Siemens, with its decades of experience in offshore wind, began to explore new offshore service concepts with site-specific tailored combinations of SOVs, crew transfer vessels (CTV), helicopters, heli-hoist platforms, and jack-up vessels, based on each customer’s unique needs.
One of the cornerstones of this approach is Siemens’ advanced remote diagnostics and monitoring, which can remotely solve up to 85% of alarms. When physical service is required, Siemens engineers are able to analyze the data gathered to accurately predict specific needed repairs before they become serious issues and proactively take action. This allows Siemens to employ the right resources to accurately and efficiently address service needs with the proper combination of logistics and planning.
With a large onboard parts storage area and comfortable accommodations, as many as 40 Siemens’ technicians will live and work on the SOVs near the wind farm for several weeks at a time, significantly reducing the time traveling to and from the wind turbines. This will help to increase the technician working hours in the turbine by as much as 50% over traditional CTVs. The motion-sensored Ampelmann hydraulic access system on the SOVs will contribute to increasing the working window impacted by weather by enabling technicians to safely “walk to work” in the turbines at higher wave heights. As the SOV can stay in the field for several weeks at a time, the vessel only needs to return to port for fueling and the replenishment of supplies and equipment.
In addition to being the end user of the SOV for offshore wind service purposes, Siemens also was a supplier to Esvagt for two key systems aboard the vessel. The Siemens BlueDrive propulsion system has been designed to reduce CO2 emissions and fuel consumption, and Siemens hydraulics are used in the Ampelmann active access gangway system.
Siemens has also signed a chartering agreement with ship owner, Bernhard Schulte, for two Ulstein SX175 SOVs to be purpose-built for the long-term service and maintenance operations of the Gemini and Sandbank/Dan Tysk offshore wind power plants in the North Sea.
Siemens currently provides service and maintenance for over 1400 offshore wind turbines with a wind energy capacity of over 4.8 GW and offers an integrated solution along the entire value chain: wind turbines, grid connections, installation, commissioning, service, training and finance.
Image: Esvagt Faraday/Siemens
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