Wednesday, November 25, 2015

World’s largest floating wind farm will be installed in Scotland with oil money



Offshore wind has come a long way in recent years, in large part because of how heavily the UK has invested in the technology. But most of this development has been with conventional wind technology, which requires that the turbines be mounted to the seafloor or lakebed in relatively 
shallow water.

The world’s largest floating offshore wind development will be installed off the coast of Peterhead after the application has been granted a marine licence by the Scottish Government. It is expected that the Hywind Scotland development could power up to 19,900 houses.








Norwegian Statoil propose developing a pilot park of five floating 6 MW turbines which is to be located approximately 25km off the coast of Peterhead with a generating capacity of 135GWh of electricity each year.
Unlike conventional turbines, Hywind turbines will be attached to the seabed by a three-point mooring spread and anchoring system. The turbines will be connected by an inter-array of cables and an export cable will transport electricity from the pilot park to shore at Peterhead.

“The ability to leverage existing infrastructure and supply chain capabilities from the offshore oil and gas industry create the ideal conditions to position Scotland as a world leader in floating wind technology.”

“Successfully developing floating turbines could enable Scotland to secure even more clean energy from offshore wind in the future. With the right political support for offshore wind and other renewable technologies, Scotland is well placed to become the EU’s first renewable electricity nation by 2030.Floating turbines have many attractive benefits, according to Renewable Energy World.

Another benefit is that floating platforms can generally be commissioned and assembled at the quayside, without the need for heavy-lift jackup or dynamic positioning (DP) vessels, further reducing the cost and risk of deployment activities.

“Eliminating offshore lifting operations also provides for decreased weather window restrictions on installation.” 

The fact that foundations are not necessary with floating technology also means that piling activities and sea life disturbance can be minimized—greatly reducing negative environmental impacts. Moreover, reduced geotechnical requirements mean that core sampling is only needed to test the seabed ahead of appropriate anchor selection, as opposed to the necessity of core sampling at every pile site.

According to research from the Carbon Trust, floating wind turbines could reduce the price of offshore wind to less than $150 megawatt-hours (MWh), and larger projects such as Hywind may drop the price even lower to $130-145 MWh. The current average price is $172 MWh.

“Floating wind represents a new, significant and increasingly competitive renewable energy source,” A key advantage of using floating wind platforms is that they allow developers access to previously inaccessible waters where there is stronger yet less turbulent winds—helping to reduce the overall cost of wind energy.


http://ecowatch.com/2015/11/03/floating-wind-farm-scotland
http://www.offgridquest.com/energy/wind-power
https://www.pressandjournal.co.uk

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