Researchers at the Department of Civil and Environmental Engineering of the Universitat Politècnica de Catalunya (UPC) have designed and patented a floating platform for offshore wind turbines that can reduce energy costs to 12 euro cents per kilowatt hour (kWh) through a more efficient design and cheaper building materials.
Researchers Climent Molins and Alexis Campos, of the UPC’s Department of Civil and Environmental Engineering, have developed a model of a floating structure for offshore wind turbines anchored at great sea depths that makes them competitive through cost savings in construction and maintenance.
The prototype, WindCrete, is a cylindrical structure with a large float and a ballast base that makes it self-stabilising. According to the researchers, who belong to the Barcelona School of Civil Engineering, the main innovations of this model compared to similar ones on the market are the seamless, monolithic structure and the use of concrete for its construction.
By using concrete instead of the more expensive steel that has been used previously, the construction cost is reduced by 60%. In addition, concrete is more resistant in the marine environment, so the structure has fewer maintenance requirements and a life of about 50 years. The absence of joints in the platform increases its durability against the effects of wind and sea and avoids the damage that normally appears in transition areas.
The WindCrete includes a 5-megawatt (MW) wind turbine that can carry rotors of up to 15 MW with a minimum increase in the cost, making it far more economical. The new system reduces the cost of wind energy to 12 cents per kilowatt hour (kWh). This is half the price per kWh of this type of energy (about 24 cents) in the Canary Islands, one of the regions where wind power is to be promoted.
Given the long useful life of this prototype, the possibility of replacing the turbine with a more powerful and more profitable one has been considered.
Partially submerged offshore platforms of this type require a minimum depth: 90 m in the case of WindCrete. However, there is no technical maximum depth at which they can be installed. In the Gulf of Mexico, for example, there are oil platforms of this type anchored at depths of up to 2300 m.
The prototype was developed within the framework of the European project Alternative floating offshore substructure for offshore wind farms(AFOSP) , which is carried out in the framework of KIC-InnoEnergy in collaboration with Stuttgart Wind Energy at the University of Stuttgart and Gas Natural Fenosa. A preliminary design was carried out to ensure technical and economic feasibility.
In order to check the behaviour of the platform and its anchoring system in an environment that simulates the sea, trials were also carried out in the wave flume of the UPC’s Maritime Engineering Laboratory (LIM), using a WindCrete prototype with a scale of 1:100.
The Latest on: Low-cost offshore wind turbine
via Google News
The Latest on: Low-cost offshore wind turbine
- The future of offshore wind may depend on Bernhardton August 7, 2019 at 3:43 am
"Proposed offshore wind facilities are major infrastructure projects that ... But these projects need to get built on time in order for us to enjoy their carbon-free energy and low cost. An extensive ...
- As Global Energy Demands Grows, So Does Appetite For Offshore Windon March 26, 2019 at 6:11 am
As fossil fuel emissions continue to exacerbate the effects of climate change, carbon-free solutions like nuclear, solar power, and wind power are becoming ... the world needs as many low-cost, ...
- UK offshore wind 'generates more than nuclear'on March 18, 2019 at 6:15 am
“It’s also interesting to see that offshore wind outperformed nuclear – showing the way our modern energy mix is changing, with low-cost wind energy becoming the backbone of our clean energy system.” ...
- World’s most powerful offshore wind turbines deployed in Scotlandon October 8, 2018 at 5:00 pm
The 93.2 MW EOWDC is operated by Swedish energy group Vattenfall and the president Magnus Hall said the centre will “turbocharge the growth of a global, low cost offshore wind industry – and in doing ...
- Vattenfall inaugurates Scottish offshore wind farmon September 11, 2018 at 2:51 am
The European Offshore Wind Deployment Centre, with the world's largest turbine capacity, is inaugurated in the presence ... Deployment Centre), is at the heart of Vattenfall's drive for low cost ...
- Vattenfall inaugurates Scottish offshore wind farmon July 8, 2018 at 5:00 pm
with the world's largest turbine capacity, is inaugurated in the presence of Vattenfall`s CEO Magnus Hall and Nicola Sturgeon, First Minister of Scotland. The European Offshore Wind Deployment Centre, ...
- PSC Urged to Adopt "Low-Cost" Offshore Wind Optionon June 11, 2018 at 5:00 pm
ALBANY, N.Y. – A "low-cost" option for development of New York state's offshore ... Reynolds says the study also showed that no matter how the state achieves 50 percent renewable energy, offshore wind ...
- How Trump Could Revive The Cape Wind Offshore Wind Energy Projecton December 6, 2017 at 4:00 pm
Although it's not quite what the Alliance had in mind, among those developments is an emerging generation of high efficiency, low cost offshore wind turbines, new methods for anchoring turbine ...
- Why offshore wind turbines can’t handle the toughest hurricaneson June 23, 2017 at 1:03 pm
Offshore wind energy generation could expand the nation’s energy supply with potential to provide 160,000 jobs and low-cost energy for millions of Americans, according to a government report. Worsnop ...
- Giant offshore wind turbine will feature blades longer than two football fieldson February 2, 2016 at 8:14 am
and the National Renewable Energy Laboratory are working together to build a low-cost 50-MW wind turbine for use offshore. For reference, most wind turbines in use today are 1 to 2 MW and the largest ...
via Bing News