search.noResults

search.searching

note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
ANCHORING & MOORINGS 3G IS STILL FIT-FOR-PURPOSE


By any standards, 2016 proved to be an interesting year with Brexit, the US elections and global geo- political instability all influencing energy and commodity prices.


Moving into 2017, many uncertainties continue and despite significant ratification of the Paris Agreement, it remains unclear how governments and consequently, the renewables industry, will respond. Investment in marine renewables will invariably be affected, with budgets being will be closely scrutinised. All stakeholders will continue seeking ways to reduce costs and optimise efficiencies in delivering their technologies and energy.


UTILISING BUDGETS EFFECTIVELY AND EFFICIENTLY


Foundation solutions, whether anchored, moored or static remain a significant cost for any marine renewable project. However, there remain a number of possible mitigations to utilise budgets effectively and efficiently, perhaps the most significant being to adhering to the ‘3G’s’ – Geoscience, Geotechnics and GIS. Investing in an intelligent and integrated geoscientific data acquisition programme enables a site to be appropriately characterised in relation to the proposed energy converter load case, design and installation. Geophysical and geotechnical site surveys typically consume 5-10% of any project’s overall budget so it is wise to optimise data acquisition, designs and methodologies as early in the project life cycle as possible, reducing subsequent costs, risks and rework. The Crown Estate’s Wave & Tidal (UK) 2016 Chart depicts current UK wave & tidal interests, which by their very nature, are challenging sites in terms of physical environments, metocean and subsea geology. As wave & tidal converters exhibit considerable diversity in concept and design (e.g. wave ‘bobbers’ and ‘flappers’; vertical and horizontal axis tidal turbines), it should follow that different considerations invariably prevail at these disparate geographical locations.


PAGE 14 Wave and Tidal (UK) Inset A Westray South Brough Head Billia Croo Galson Bernera Harris Inset B


Demo Zone Inset C


Inset D


Sound of Islay


Inset C


Bluemull Sound


Isle of


Islay Mull of Galloway Islay


Demo Zone


Mull of Kintyre


Fair Head


Sanda Sound


0 Inset E


Holyhead Deep


West


Anglesey Demo Zone


St David's Head Ramsey Sound


0 30 Author: DB


GIS_2016_2184_15 v2 QA: KO


60 km 4 8 km Torr Head Inset F South


Pembrokeshire Demo Zone


North Devon Demo Zone


Wave Hub


0 30 60 km Scale 1:9,000,000 at A4


EI-Wave-and-tidal-UK-A4.mxd -- 19/12/2016 -- 15:29:38 Printed from PDF. The scale representative fraction is only correct when printed at intended size. Use the scale bar if in doubt.


¯


Positions shown relative to WGS 84. © Crown Copyright 2016, all rights reserved. Reproduction in whole or part is not permitted without prior consent of The Crown Estate. Ordnance Survey Data: Licence No. 100019722, http://www.thecrownestate.co.uk/ordnance-survey-licence/. Limits: Supplied by UKHO. Not to be used for Navigation.


ACQUISITION PLAN


Geoscientists have long since emphasised the value of obtaining key geoscientific parameters, particularly geotechnical, to assist with load case versus design optimisation, as encapsulated in a six- point data acquisition plan…


1. Detailed desktop study 2. Shore site walkover, if applicable 3. Geophysical, and possibly visual, surveys


4. Shallow geotechnical surveys and/ or drillings


5. Onshore geotechnical drillings (if applicable)


6. Integrated Report FURTHER UTILISATION


We would propose additional feedback loops after the Integrated Reporting phase to enable all relevant stake holders to further utilise the presented data via GIS. This provides a unified, flexible and interactive medium to further validate ground models, optimise design, assist with subsea infrastructure installation, verify and certify.


www.wavetidalenergynetwork.co.uk ALL STAKEHOLDERS WILL


CONTINUE SEEKING WAYS TO REDUCE COSTS AND OPTIMISE EFFICIENCIES IN DELIVERING THEIR TECHNOLOGIES AND ENERGY


These GIS libraries should be updated and iterated, due to the dynamic nature of the operating environments, to provide data and bench-marking from inception through to final ecommissioning.


RETURN ON INVESTMENT


In short, a robust geoscientific data base is a critical and key success factor throughout a project life cycle. The initial investments will almost certainly pay-off in the long run.


Peter Larkin and Hardeep Sidhu Independent offshore energy consultants Cetus Innovate Limited


Portland Bill Inset F


Perpetuus Tidal Energy Centre (PTEC)


0 10 20 km 0 8°0'W 200 4°0'W 400 km Inset G 0 10 20 km Inset G


Wave and Tidal Activity Wave Site Tidal Site


0°0'


Base Map TerritorialWaters Limit UK Continental Shelf International Median United Kingdom Europe


Date: 19/12/2016


16 New Burlington Place London, W1S 2HX 6 Bell's Brae


Edinburgh EH4 3BJ www.thecrownestate.co.uk SeaGen


Strangford Lough


Strangford Lough


Strangford Lough Array (MCT)


0 10 20 km Inset E Inset D


North West Lewis


Brims Tidal Array


8°0'W Lashy Sound


Fall of Warness Stronsay Firth


Shapinsay Sound Scapa Flow Brough Ness


Ness of Duncansby Inner Sound


0 40 80 km Inset A 4°0'W Inset B 0°0' 4°0'E


4°0'E


50°0'N


54°0'N


58°0'N


50°0'N


54°0'N


58°0'N


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40