EDP Group / EDPR is in continuous search of innovative offshore solutions, namely solutions that will boost competitiveness and that will allow evolution from an early stage and strongly subsidized market to a more mature market purely based on market mechanisms and competitive with other RES. Gravity foundations, namely self-buoyant solutions like GRAVI3 have the potential to accelerate the technology learning curve which is critical to achieve market readiness. Thus the main impact for EDP is the possibility to increase competitiveness of offshore wind projects, namely in transitional waters, by reducing LCOE in up to 10-15%. With that boost in competitiveness becomes more likely a stronger penetration of offshore wind energy in EDP’s generation portfolio, contributing for its diversification and “greenification”.
EDP CNET, being an applied R&D Centre, will have the possibility to contribute for the development of the GRAVI3 technology, immersed in a group of highly specialized industrial partners and thus extracting a benefit from being exposed to such industrial environment and players. Having a central role in the DEMOGRAVI3 proposal will position EDP CNET as a future candidate for the provisions of services to industrial consortium to be formed, namely in engineering, monitoring and validation.
TYPSA is a consulting company leader in civil engineering design and renewable energy, and a key player in maritime infrastructures and wind energy projects. Its long experience in both fields allowed TYPSA participating, for the last three years, in GBF projects gaining experience on real offshore wind projects. Besides enhancing company’s technical capabilities, this demonstration project aims to prove the technology in which TYPSA has been working for several years to get major cost drivers’ reduction in offshore wind projects. Therefore, acting as lead designer of DEMOGRAVI3, TYPSA will reinforce its position as a leader consultant in self-buoyant GBF’s design. Company’s competitiveness will be strengthened and, thanks to its presence all over the world, shall serve as a platform to promote innovative and competitive services, especially in less mature and emerging markets such as the Americas and Asia.
ASM Energia will carry out the manufacturing and assembly of the Demogravi3 steel components. ASM will increase its own experience in the supply of foundation solutions for the offshore wind industry, namely regarding the new methodologies for the fabrication and assembly activities. The expected acquired experience working with hybrid structures will be also positive for the long term strategy. Beside the track record in the market, which is very important to access new niche markets and client in future, it is expected an improvement in ASM’s competitiveness due the experience which will be acquired.
ACCIONA will manufacture the reinforced concrete caissons that are part of the GRAVI3 foundation employing their floating-dock vessel. This type of vessels is normally used in in Japan and Spain to manufacture reinforced concrete caissons for the erection of quay walls. The application of this technology for the manufacture of gravity base foundations for offshore wind turbines will open a new market for these vessels and will allow ACCIONA to enter the GBF market contributing to strengthen its competitiveness. The use of the floating dock technology will improve the traditional manufacturing process of reinforced concrete GBFs on dock in two ways: 1) Speeding up the concreting process, traditionally carried out with climbing formworks 2) solving the problem of launching GBFs from the dock, once fabricated.
WAVEC has been involved in the development and test of the WindFloat offshore wind prototype in the areas of conceptual design, numerical simulation, inspection, environmental impact monitoring, O&M, offshore logistics and dissemination. The DEMOGRAVI3 project will allow to extend WAVEC expertise and credibility to fixed foundation offshore wind turbines and to be one of the few R&D centres in the world to combine the two expertises (bottom fixed and floating offshore wind). Furthermore WAVEC will be able to undertake a direct comparison of the performance, environmental impacts and O&M of the same turbine with two alternative offshore foundations. This places WAVEC in a unique position with a large potential to expand its capacity to render services around the world (which represent about 25% of its annual income).
Fraunhofer IWES (FhG) is an applied research institute. Therefore, current research and technology should be improved for the use within an industrial environment. Hence, Fraunhofer IWES will have the chance of applying existing knowledge in the topics of offshore wind measurement and wind turbine evaluation and gain experience from the DEMOGRAVI3 within these topics. Beside this, existing tools for the assessment of transport, installation and maintenance procedures (COAST (Comprehensive Offshore Analysis and Simulation Tool), Offshore-TIMES (Transport, Inspection and Maintenance Software)) will be used and improved for the special needs of gravity based foundation concepts. This also comprehends the assessing of LCOE (Levelized Costs of Energy) and SCoE (Social Costs of Energy), where existing models will be further developed within the DEMOGRAVI3 project. The benefit of experience is an important step for giving future support for industry and research.
Global Maritime as an independent marine, offshore and engineering consultancy, focused in setting the standard in offshore design, verification, assurance and safety. This project will allow Global Maritime to transfer its knowledge from the traditional offshore oil and gas industry into the renewables industry. Participating in the LCE3 project will also grow Global Maritime’s in-house core competence and strengthen their brand as a world leading engineering house. Global Maritime will apply their knowledge to the project and ensure that the marine operations of the project are completed safely and cost efficiently, while minimizing risks. Through the DEMOGRAVI3 proposal Global Maritime will be able to seek standardization and simplification for marine operations in this type of renewable projects. In addition, Global Maritime’s proposed role will be to identify and mitigate projects risks by identifying actions to be taken by the consortium. This should allow Global Maritime to gain experience de-risking these types of projects, which in turn would reduce CAPEX cost of similar projects in the future.
GDG will benefit from this project by improving their expertise in offshore gravity base analysis and deployment. To date, GDG have undertaken gravity base feasibility studies and conceptual engineering analysis for potential wind farm sites in the North Sea, Irish Sea and further afield. However the lack of suitable demonstration sites for gravity base technology has been a major barrier to GDG expanding our experience into detailed design and offshore deployment. With this project, GDG will be able to complete a detailed soil-structure interaction analysis and detailed design of the gravity base sitting on the seafloor. Furthermore, GDG will be able to calibrate their in-house design tools against the real performance of the in-situ structure following deployment. The combined impact will allow GDG to further enhance our in-house design capabilities and therefore offer more competitive GBF designs, which will help lower the overall LCOE on projects in intermediate water depths. It is anticipated that this project will provide the necessary catalyst to make GBF technology competitive with Jacket foundations and thereby increase the choice available in the market, further driving down costs.