Annex 3 Supply Chain Case Studies 3.1 East AngliaMetMasts
Overview
In order to accurately predict the wind resource available in the EA zone, EA1 installed twometmasts. The Shareholders sought to capture learning fromthe delivery of themet masts, but also seized upon the opportunity to work with new suppliers to the renewable energy industry – thus supporting longer termgoals of expanding support for UK project delivery. Themasts were technically challenging, but also presented a significant supply chain opportunity, being installed in 43mof water depth, reaching to a height of over 100mand located 40 to 60miles fromthe nearest ports. Through the delivery of themetmasts the Project achieved the following successes:
Competition
Main contract awarded on EPC basis following broadmarket engagement exercise. 7 tenders received. Standard contract terms and conditions adjusted in some areas to allow wider participation in delivery.
TheWood Group was awarded themain contract for supply and installation, equating to £17M. Expanding the UK Supply Chain by giving an opportunity to an established UK Oil and Gas company to bring their knowledge and experience to the renewables sector.
Steel Engineering and TAG awarded sub-contracts for themajor elements ofmanufacturing. UK manufacturers achieved the awards formonopile and transition piece delivery.
Innovation
At over 40mwater depth, one of the deepest watermonopiles installed in the renewables industry. Conical shape employed in design to save costs and reduce weights – learning employed on other projects.
Designwas executed by Ramboll in their London office. Technical review was also UK based, (Offshore Design Engineering, GHGL and London Offshore Consultants).
Integratedmonopile andmetmast design determined by the Shareholders in house team of experts. Integrated design safer andmore robust than separate designs that have been prone to failure.
Skills
Utilisation of East Anglia ports for O&Msupport – 5 years planned. Development of new integrated design techniques, which will deliver long termsolutions that aremore robust and cost effective than the traditional approach.
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