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Innovative, low cost, low weight and safe floating wind technology optimized for deep water wind sites

Periodic Reporting for period 1 - FLOTANT (Innovative, low cost, low weight and safe floating wind technology optimized for deep water wind sites)

Reporting period: 2019-04-01 to 2020-09-30

According to WindEurope report, offshore wind is expected to produce 7% to 11% of the EU’s electricity demand by 2030 and the energy produced from wind turbines in deep waters could meet the EU’s electricity consumption four times. With Floating Offshore Wind (FOW) solutions, wind power can expand into new deep-water areas, often further from shore, opening vast new areas and markets currently unavailable for offshore wind. However, many elements of an offshore wind farm become more expensive as depth increases.
The main objective of FLOTANT project is to develop the conceptual and basic engineering, including performance tests of the mooring and anchoring systems and the dynamic cable to improve cost-efficiency, increased flexibility and robustness to a hybrid concrete-plastic floating structure implemented for Deep Water Wind Farms. Innovative solutions will be designed to be deployed in water depths (100-600 m), optimizing the LcOE of the floating solution (90 €/MWh) by 2030. Prototypes testing of this offshore wind floating platform and its associated mooring, anchoring and dynamic cable systems are foreseen in relevant environment and real sea conditions within the scope of the project. Moreover, the assessment and optimisation of the construction, installation and decommissioning techniques will also contribute to bring down the current cost of offshore wind energy, as well as, increasing its deployment. An expected 60% reduction in CAPEX and 55% in the OPEX by 2030, will be directly motivated by FLOTANT novel developments and additional reductions due to external technology improvements. In addition, environmental, social, and socio-economic impacts will be assessed, increasing social acceptance of FOW in deep waters.
This principal objective of FLOTANT project will be achieved by through the development of the following specific objectives and associated Work Packages:
1. Develop a lightweight, smart and high-performance mooring cabling (WP2)
2. Optimize mooring line seabed, anchoring and platform connections (WP2)
3. Develop a lightweight and high-performance dynamic cabling (WP3)
4. Develop novel components to facilitate quick Plug & Play operations (WP3)
5. Develop a new solution for offshore floating substructure (WP4)
6. Optimise global performance of the integrated FLOTANT solution (WP4)
7. Validate FLOTANT main components (WP5)
8. Design and assess a cost-efficiency installation and removal techniques (WP6)
9. Develop a full controlled and remote monitoring floating technology (WP4, 5, 6)
10. Assess and quantify FLOTANT system cost reductions (WP7)
11. Project sustainability and assess the environmental impact reduction (WP7)
12. Maximise socio-economic impacts, including public engagement and social acceptance (WP 8, 9).
FLOTANT ( is a 3 years project coordinated by PLOCAN, organised in 9 Work Packages (WPs).
WP2 to WP4 are breakdown into technical tasks, with industrial leadership, to develop further cutting-edge existing technologies applied to solve major challenges in the anchoring and mooring systems for deep ocean areas (WP2), a lighter and robust dynamic cable and connector (WP3) and a cost-effective and durable floating substructure (WP4).
WP2 led by TFI, has delivered successfully a new and innovative mooring and anchoring system achieving a notable reduction in the design and fatigue loads for two real commercial scenarios (West of Barra (Scotland) and Gran Canaria (Spain)). It has produced also the designs and fabrication components of an innovative hybrid polymer carbon fibre mooring cable, and a polymer spring component both equipped with cutting-edge monitoring technologies.
WP3, led by FULGOR, has already produced an innovative XLPE length of insulated cable core with aluminium conductor. This is a first step for the development of a lighter and stronger dynamic cable which includes a smart Carbon Fibre Braid armouring, an antifouling/anti-bite extruded HDPE outer jacket and an innovative cable connector equipped with a mechanical hang off and breakaway system.
INNOSEA leads WP4 where a notable progress has been made for the design and specifications of a novel hybrid concrete-plastic floating substructure. It has produced the specifications of a generic 12MW wind turbine to be installed in this floater and it has produced and certified the Structural and Naval Architecture Design basis by Bureau Veritas.
Within WP5, under the leadership of MARIN, each major component is tested to increase their development maturity and achieve a TRL4-5. The preparation of the assays of WP2 and WP4 components have been initiated in the experimental basin of MARIN while the new antifouling/anti-bite plastic materials are conducted at PLOCAN marine test site. The innovative dynamic cable and connectors will be tested in DMAC facilities of EXETER and FULGOR facilities.
Within WP6 and WP7 led by EXTER and UEDIN respectively, it has been produced the Operation and Maintenance and the Techno-economic models to initiate the study of the impact of two Floating Offshore Wind (FOW) farms theoretically installed in West of Barra (Scotland) and Gran Canaria (Spain). This assessment will allow to define how FLOTANT innovations will contribute to reduce the CapEX and the OpEX of the FOW industry.
A strong Communication, Dissemination and Exploitation plan, and the initial methodology for the development of a realistic Business plan and Commercialization strategy, have already been implemented in WP9 and WP8 led by the Project Coordinator (PLOCAN) and the Technical Coordinator (COBRA) respectively.
WP1, led by PLOCAN, has established a coherent and controlled management environment based on international recognised management best practices.
The main impact expected from FLOTANT project is the development of a cost-competitive integrated FOW system for deeper waters (100-600m; LcOE=90€/MWh) by 2030. With the aim of tracking FLOTANT advancement towards this principal impact, the consortium has initiated the translation of the technical data and specifications of its major technological innovations into a comprehensive analysis of its consequences on FLOTANT FOW system Capital Expenditures (CapEx), Operational Expenditures (OpEx) and Decommissioning Expenditures (DecEx).
FLOTANT techno-economic assessment and LCOE reduction impact is executed in WP7 under the leadership of UEDIN. The work performed so far, towards the achievement of the project principal targeted impact includes:
1) The generation of a first version of FLOTANT LCoE model with key inputs obtained from a comprehensive review of the bibliography and directly from all FLOTANT partners.
2) The verification and validation of the model against already existing publications and using data from existing real FOW reference cases and their corresponding public deliverables.
3) The generation of preliminary FLOTANT LCoE results performed for deployments in West of Barra and Gran Canaria, at pilot park (60MW) and commercial (600MW) scales. Although the preliminary FLOTANT cost assessment is still subject to large uncertainties, due to the lack of finalised designs, at this stage of execution, the results show that the LCoE values are within the expected range and that LCoE model consistently provides reasonable results.
A: Harshlab 0.5-Antifouling/antibite test for 1:Dynamic cable; 2: Ballasting Tank; 3: Mooring line