FEATURE SPONSOR
BEATRICE – THE STORY SO FAR A LONG RELATIONSHIP
David Lambkin, metocean specialist at ABPmer, describes their history with Beatrice Offshore Windfarm
Inverness
ABPmer, a recognised provider of specialist advice to the offshore sector, has been involved with Beatrice Offshore Windfarm since the early stages. In 2009, the company was asked to undertake the coastal process assessment that informed the Environmental Statement that accompanied the consent application.
COMBINING SERVICES Uniquely this was done in parallel with the assessment for the proposed adjacent development in the Moray Firth saving both developers time and money, says Lambkin. Combining services like this also provided consistency in the assessment of any potential impacts, especially with regards to cumulative and combination effects.
Post-consent the company supported design and engineering needs by providing a detailed description of the metocean regime operating in both across the offshore windfarm development zone and its export cable route.
Using their experience and data from the development of the ABPmer SEASTATES wind and wave hindcast, David and others from ABPmer’s
© ABPmer, All rights reserved, 2013 [Source: Atlas of UK Marine Renewable Energy Resources] NOT TO BE USED FOR NAVIGATION
DESIGN CRITERIA
Metocean Team built bespoke high- resolution hydrodynamic and wave models of the Moray Firth. These were then used to establish the long-term wind and wave databases needed for robust statistical analysis of metocean conditions.
Date Apr 13 TAP
Projection Scale
By Size Version A4
1 WGS 1984
UTM Zone 30N 1:3,300,000
4125_001_Fig2_Ann_Mean_Wave_Hs_2.mxd
Produced by ABPmer QA
MCE
Annual Mean Significant Wave Height (m) > 2.76 2.51 - 2.75 2.26 - 2.50 2.01 - 2.25 1.76 - 2.00
The design criteria included a statistical breakdown of extreme conditions including wind speeds, wave heights, current velocities and water levels, essential to inform the developer’s design studies. Naturally, all design criteria were subject to independent review to ensure compliance with relevant standards. Data from the long-term hindcast databases was also used to undertake fatigue analysis of the proposed developments and later used to inform construction and maintenance planning.
David stated: “Hindcast models such as ABPmer’s SEASTATES database
Aberdeen Thurso Wick Dundee Edinburgh
Newcastle upon Tyne
Hull Grimsby
1.51 - 1.75 1.26 - 1.50 1.01 - 1.25 0.76 - 1.00 0.51 - 0.75 < 0.50
Annual Mean Significant Wave Height (Renewables Atlas)
are frequently used to enable assessment of the spatial variability of oceanographic conditions over a windfarm development area and cable route at a fine spatial scale. This approach offers a technical advantage over other commercially available hindcasts operating at a coarser spatial resolution, and supported a more detailed understanding of the unique Moray Firth environment.”
0 25 50
Beatrice Offshore Windfarm Export Cable Corridor
100 km Figure 18 SUPPORT
ABPmer continues to support offshore wind developments around the UK. The SEASTATES hindcast database is considered an invaluable source of information for the sector providing data to set up hydrodynamic models for metocean studies as well as weather downtime statistics for construction and maintenance planning.
ABPmer WEBSITE
www.windenergynetwork.co.uk 31
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