COREWIND: improving the performance of floating wind technology in the open sea
A new management model integrated into the water resources of the Besòs
May 10, 2021
An innovative open data platform for Barcelona
April 29, 2021The research group Analysis and Technology of Structures and Materials (ATEM) is participating in COREWIND, a project that will provide disruptive, profitable solutions for floating offshore wind technology to reduce costs and improve performance and reliability. This objective is achieved by modelling and optimising the concepts of concrete-based floating substructures.
Floating wind turbines could produce electricity further from the coast in deeper waters than traditional turbines that are fixed to the ocean floor, which represent almost all facilities in Europe today. Offshore floating turbines are crucial to obtain energy transition targets. For this to happen, the costs of obtaining this energy must continue to fall. WindEurope estimates that they could be cut to 40–60 €/MWh (currently they stand at over 100 €/MWh) if the right policies were implemented and, especially, if technological innovation comes into play. In this aspect, Corewind will propose solutions that could lead to a reduction in Levelized Cost of Energy (LCOE or the current cost of construction and operating an installation that generates energy during its useful life) of at least 15% in comparison with offshore wind turbines fixed to the seabed.
The reduction in costs of floating wind technology in the open sea could be achieved by optimising two components: mooring and anchorage systems, and the dynamic cables. For this purpose two pilot tests have been carried out in which different solutions have been simulated: the first in front of the Canary Islands (Spain), where the cost savings of mooring systems were estimated to be up to 60%, and the second in Morro Bay (California, USA), whose results showed a potential reduction of up to 55%.
These promising results will enable the door to be opened to the possibility of scaling up two floating technologies: semi-submersible platforms and spar platforms (the name for a design in a vertical position with a float in the upper part and ballast in the lower part), both anchored to the seabed via cables or catenaries.
In addition to the simulations, these improvements will be validated with experimental tests in wave tanks and wind tunnels, taking as a reference the two concepts of concrete floats (semi-submersible and spar) that support large wind generators (15 MW), installed at depths greater than 40 m and at 90 m, respectively. In addition, solutions will be developed and validated to improve the installation techniques and the operation and maintenance activities.
The project will also provide design standards and good practices, as well as open data models to accelerate the development of floating concrete offshore wind turbines. It is expected that the resulting recommendations will facilitate the development of this type of energy, making it a viable technology for intensive use.
COREWIND will take 42 months (2019–2023) and has funding of 5 million euros from the European Union’s Horizon Programme 2020. It is led by the Catalonia Institute for Energy Research (IREC) and a further ten partners in addition to the UPC are involved.
Related Projects
- The research group Barcelona Fluids & Energy Lab (IFLUIDS) and the Centre for Technological Innovation in Static Converters and Drives (CITCEA) of the UPC participate in the European project H-HOPE, which is focused on the development of solutions to produce clean energy based on water sources that have still not been exploited, such as pipes and water channels.
- Combining agricultural activity and the production of solar energy by means of photovoltaic panels is the aim of SYMBIOSYST, a project promoted by a consortium of 16 European partners including the UPC. As part of this project, technological tools will be developed to contribute to generating clean energy for the agricultural sector in Europe.
- The production of biogas through anaerobic digestion has been increasing exponentially in Europe in recent years. This is because it can be produced locally and has a clear positive effect on waste recycling, the generation of clean energy, sustainable development or climate action. In this context, the FertiLab project was launched, with the participation of researchers from the Department of Agri Food Engineering and Biotechnology (DEAB) of the UPC.
- The flexibility of electrical systems is fundamental in the process of energy transition towards more sustainable energy generation models. The European Commission promotes the development of solutions that respond to the challenges of managing electricity distribution networks in the future energy system based on renewable sources. An increasingly large proportion of fluctuating electricity generators, such as wind and solar systems, makes it difficult to calculate the loads that are being supplied.
