ORE Catapult - SPR sits on ORE Catapult’s Industry Advisory Group providing direct input into its strategic direction and projects. SPR is an active contributor to ORE Catapult on projects in relation to the standardised testing of 66kV cables, fabrication techniques for new innovative foundation designs and exploring blade fatigue in relation to the offshore environment. All of these activities have the potential to reduce the cost of offshore wind. [I1,I2,I4] {ii, iii}
OWA Dynamic cable project – SPR is an active contributor to an OWA project to examine how a typical static cable reacts to application in dynamic conditions (when subjected to wave and tidalmotion). Dynamic cable applications include free hanging cables fromexisting foundation technology, which has the potential to reduce installation costs, or can be used to connect floatingWTG or wave and tidal generation devices. The project will allow the industry to obtain greater awareness of cable performance to optimise the technical specification for cables being purchased in the future (and avoid costly over engineering). This is especially relevant to aid the development of lessmature generation technologies such as wave & tidal and floatingWTGs. FloatingWTG in particular have significant potential to reduce costs andmake deeper water offshore wind projects viable.[I2,I4,I5,I6] {ii, iii}
3.2.8 Project specific actions
First to adopt new66kV technology: EA1 is leading the offshore windmarket with its choice of 66kV inter-array cable. This solution gives cost of energy advantages (compared to 33kV cables) particularly in reduced transmission infrastructure costs and reduced electrical losses. [I2] {ii, iii}
Increased early engagement: For both export and array cables, EA1 is being proactive to examine the specification of cables to better define its requirements to aid design of a lower cost but higher integrity solution. EA1 is encouraging suppliers to develop and produce cables in the UK to create jobs and economic benefit.
Grid Transmission SystemEPCI 3.2.9 Industry wide actions
Potentially the first ever HVDC export platformin the UK sector: The EA1 Projectmay be the first UK offshore wind project to use an HVDC connection which is currently its preferred transmission option. As the first ofmany, this is ground breaking and will encourage competition and innovation in the supply chain tomeet the demands of this new solution. Based on SPRs involvement with the OWPB, EA1 estimates thatmoving to an HVDC transmission platformand higher voltage array cables could reduce LCOE by 6%. [I2] {ii, iii}
Meshed transmission networks R&D: SPR is currently sponsoring a PhD student at the University of Strathclyde’s Doctorate Training Centre forWind Energy Systems to investigate the important issue of meshed international transmission networks of relevance to the EA1 Project. EA1 will continue to explore annually with the centre areas inwhich academic students can continue to support the development of the EA1 Project. [I1,I2] {ii}
HVDC offshore platformjoint industry academic cost reduction study: SPR is part of an industry-led collaborationwith Babcock, Iberdrola Engineering and Construction (IEC) and the University of Strathclyde, to identify and validate ways inwhich significant cost savings can bemade for HVDC offshore platforms. This project has been successfully awarded grant funding fromthe TSB’s “Infrastructure for Offshore Renewables” call and will provide direct benefits to the EA1 Project given the significant electrical infrastructure required. [I2] {ii, iii}
The BEST PATHS project (Beyond State of-the-art Technologies for Re-powering AC corridors andMulti- terminal HVDC systems). Iberdrola is a work package lead for an HVDC emulator proposed to be built in Trondheim, Norway as part of a £7.2M(€8.7M) sub project within BEST PATHS. This project will enable an increase of wind energy integration in offshore HVDC links, a key issue for the EA1 Project and future far fromshore offshore windfarms. [I2,I5]{iii}
Power Networks Demonstration Centre (PNDC): SPR has beenworking with ScottishPower as part of its role in the PNDC venture to build amediumvoltage demonstration centre to support second tier suppliers, OEM’s and emerging technologies to test and evaluate systems in a full scale test environment, and also demonstrate high voltage and power systems at part scale. It is believedMVDC technology offers benefits to both offshore wind generators and grid operators alike. [I1, I2] {ii, iii}
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