RWE is partnering with the Offshore Renewable Energy (ORE) Catapult to study the potential for Scottish businesses to produce commercial-scale concrete foundations for floating windfarms
The possible development of floating wind projects in Scotland puts a focus on the amount of local content that could be achieved. The work RWE and the ORE Catapult are undertaking will assess what needs to be done to deliver this.
RWE has already been involved in three floating wind demonstration projects in Norway, Spain and the US, two of which use concrete foundations that could also be suitable for ScotWind sites.
Manufacturing concrete foundations could provide significant supply opportunities in terms of Scottish content for floating wind projects. The Scottish engineering supply chain has delivered many oil and gas structures for the North Sea, as well as exporting technical expertise to markets around the world.
RWE and the ORE Catapult believe there is potential to build on this legacy: for example, one concrete foundation for a 15-MW floating turbine would have a mass in excess of 10,000 tonnes; a 500-MW project would need around 33, offering an important opportunity for the local supply chain.
The study will be carried out by the ORE Catapult’s Floating Offshore Wind Centre of Excellence to understand the scale of this potential and how it might be unlocked.
RWE Renewables head of floating wind Chris Willow said, “Floating Wind could play an important part of the growth in offshore wind and has the potential to unlock new offshore wind markets around the world.
“RWE is progressing innovation in this growing sector as one of the world’s leading renewable companies. Concrete floating foundations have the potential to support Scottish projects and create local supply chain content, building on the country’s engineering legacy for a new generation of Scottish engineers.
“Achieving this will require collaboration between offshore wind developers like RWE, the Scottish Government and Scottish industry, which is why RWE has partnered with the ORE Catapult to investigate this important topic.”
ORE Catapult floating wind programme manager Ralph Torr said, “This report will identify key manufacturing and fabrication methodologies and constituent materials required to produce concrete substructures. It will also assess the existing Scottish supply chain capability and capacity to deliver such concrete substructures into a utility-scale floating offshore wind project.
“Floating wind will be required to exploit a significant proportion of the deeper Scottish waters identified by Marine Scotland’s latest Offshore Wind Sector Marine Plan, and hence play a key role in Scotland achieving its net-zero target by 2045.”
Fully funded by RWE and delivered as a discretionary project within the Floating Offshore Wind Centre of Excellence, a summary of the work will be published upon completion of the research in mid-2021.
Alongside RWE’s three floating wind demonstration projects, the company is actively seeking new offshore wind opportunities off the coast of Scotland to complement recently announced extension projects and 3 GW success in the Crown Estate Round 4 Leasing Round in the UK.
The knowledge gained from the three floating offshore demonstration projects RWE is participating in provides an important source of information for future projects. These are the 2-MW DemoSATH project, being developed in partnership with Saitec Offshore Technologies, which will be launched off the north coast of Spain in 2022; the 12-MW New England Aqua Ventus project being developed in partnership with Diamond Offshore Wind and the University of Maine, which will be deployed in 2023 off the coast of Maine; and the TetraSpar concept, which is being developed in partnership with Stiesdal Offshore Technologies, Shell and Tepco, and is expected to be launched later in 2021.