Worldwide wind market booming like never before The worldwide wind capacity reached 392,927MW by the end of June 2015, out of which 21,678MW were added in the first six months of 2015. This increase is substantially higher than in
The Joint Industry Project WIFI will investigate wave run-up on fixed foundations for offshore wind turbines by numerical modeling, model testing, offshore measurements and design and classification methods. The European consortium, led by Marin (NL), decided to integrate OWI-Lab as an additional member in this 3 year project. OWI-Lab will contribute with the measurement & analysis of waves, vibrations and strains, and the sharing of filtered and selected “wave event” data. More information about project WIFI JIP: http://www.marin.nl/web/JIPs-Networks/Public/WiFi.htm
With 270GW of wind installations worldwide, wind has clearly entered the mainstream. Over 70% of top owners view wind as a key part of a diversified generation portfolio strategy, while 85% of these owners seek to add value throughout the development value chain all the way to O&M; demonstrating that wind is now seen as a core generation technology.
Despite the opportunities fueled by new offshore projects and enhanced efficiencies in operating existing sites, the European wind industry today faces challenges around energy and wind power costs – a problem made worse by the current squeeze on...
The European offshore wind industry’s drive into deeper waters has sparked the invention of a host of innovative foundation concepts — from “twisted” steel jackets and self-installing tripods to suction bucket technologies and concrete gravity-base...
The turbine will be "over 5MW", the designers say, far bigger than the 2MW Vertiwind turbine being developed by Lille-based designer Nenuphar, project management and engineering company Technip and renewable energy company EDF Energies Nouvelles.
The Spinfloat turbine will be fitted with variable-pitch blades patented by Asah LM, a subsidiary of Eolfi. The company declined to give further details, beyond the fact that they are developing an offshore prototype
There is huge potential for wind energy in the coldest regions of the globe, a new report from the VTT Technical Research Centre of Finland suggests.
The VTT cites the latest forecasts, which show that between 45 and 50 gigawatts of wind energy will be built in cold climates by 2017. This would mean an increase of as much as 72% since the end of 2012 and investments amounting to approximately €75 billion.
Not only the gearboxes of wind turbines are subject to extreme stresses. Transformers are also a critical component. CG Power Systems, a manufacturer of such transformers, was looking for a partner to test its transformers under extreme conditions. It found that partner in Sirris. Pieter Jan Jordaens, Project Leader at Sirris, explains: “CG Power Systems uses our large climate chamber regularly to test and validate its transformers. The aim is to test reliability at very high temperatures and at cold startup.” The tests are performed at temperatures ranging from -40 °C to +50 °C.
OWI-Lab, the Belgian research, development and innovation platform for offshore wind energy, will be present with new insights during the next EWEA offshore conference in Copenhagen. The team will present its latest insights with regard to the structural health monitoring of offshore structures and condition monitoring of wind turbine rotating components.
One of the main RD&I targets of the lab has been the development, testing and validation of innovative short- and long-term monitoring solutions for offshore wind turbine assets. There are four points that motivate this work. Performing such field monitoring campaigns is crucial to gain insights that:
1) Lead to a minimization of construction and installation costs for future offshore wind farms by design optimization.
2) Reduce the operation & maintenance (O&M) costs by improving maintenance tasks based on innovative decision support tools fed by relevant field data.
3) Lead to insights that mitigate risk and uncertainties which can decrease insurance costs for future offshore wind farms.
4) Lead to a calculation of the feasibility of life time extension after the service life of the installed assets.
OWI-Lab is working on all of the four addressed topics and will share its insights with the industry on Tuesday 10/03, during the session ’Turbine technology – Fixed to the seabed’ taking place from 14:30 till 16:00, Dr. Ir. Wout Weijtjens associated at the VUB (Vrije Universiteit Brussel) and OWI-Lab will present the topic:
Monitoring the consumed fatigue life of wind turbines on monopile foundations
2-B Energy believes the basis for its design has shifted, with new drivers for offshore technology challenging the existing design path, possibly closer to its limit for reducing costs further. The new market (offshore) in combination with new turbine size class, opens a new chapter in wind technology and path, says the company, for the
Testing is an important part in the creation of a new transformer, especially when the transformer will have to deal with tough or sensitive conditions.
In situations where the outside temperature can reach extreme highs or lows, climatic testing can be used, in which a transformer is tested inside a temperature-controlled container. The data from such testing assists manufacturers in building a hardy transformer, in order to improve reliability and reduce potential maintenance costs.
The interest in structural health monitoring (SHM) in industry has increased significantly in recent years. Failure of a mechanical structure can indeed occur suddenly and provide a lot of damage. With SHM it is possible to follow up (online or offline) defects with permanently attached sensors. Damage to mechanical structures may consist of (small) changes in the material properties and / or changes in the geometric integrity of the structure. There are a lot of non-destructive evaluation tools available for conducting inspections, but with SHM-tools, substantial improvements can be achieved. This results in an enhanced security and a better control. In addition, substantial cost reductions can also be realized. For these reasons the interest in SHM has significantly increased in recent years.
GL Garrad Hassan has produced a new paper detailing the offshore wind operations and maintenance (O&M) sector in the U.K. The company says the report, which was jointly funded by The Crown Estate and Scottish Enterprise, gives an account of the relevant concepts, trends and players in a rapidly developing market.
Speaking to Windpower Monthly, Ming Yang said the design was at an early stage and the company was unable to reveal further details. The 12MW SCD model is listed on the company's website.
Last week Ming Yang launched a 6.5MW SCD prototype featuring a permanent magnetic synchronous generator. The machine has been designed for the typhoon environment in China's offshore areas, said Ming Yang. The company was unable to give the length of the blade.
A lack of development in China's offshore sector has not stopped the country's manufacturers from pushing ahead with designs for 10MW+ machines. Guodian United Power, Sinovel and Goldwind are all working on similar size capacity models.
Although turbine size has soared in recent years, there is more to building a 10MW+ machine than increasing size. The need to reduce size and mass required for a 10MW+ turbine presents a substantial engineering challenge.
Nice slide showing the evolution in capacity factor for offshore wind turbine since 1991; Baltic Sea and North Sea. Clear evidence of a learning curve in this new secor. I wonder how this looks like for our two Belgian offshore power plants?
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