FEATURE SPONSOR
OFFSHORE INTEGRATED GRIDS HUB-STYLE POWER DISTRIBUTION
We are already seeing some examples of a hub-style power distribution design off the coast of Cornwall in the UK. An ‘export’ power cable runs underneath the beach at the village of St Ives and 25km out into the Bristol Channel to a hub where a number of smaller cables split off to connect different wave energy devices, test them and transmit power back to the grid. Elsewhere, the company is working with DONG Energy on Hornsea Project One which, on completion, will be the world’s largest offshore windfarm and the first to exceed 1 GW capacity. Located 120km off the Yorkshire coast, Hornsea Project One will meet the electricity needs of well over 1 million UK homes, supported by 242km of array cables designed and manufactured by JDR.
COLLABORATION
In collaboration with offshore cable installation specialist VBMS (part of Boskalis), JDR is also contracted to supply 20km of 66kV intra-array and export cables to Vattenfall’s European Offshore Wind Deployment Centre (EOWDC). Located in Aberdeen Bay, the 92.4MW, 11-turbine development is Scotland’s largest offshore wind test and demonstration facility.
A WORLDWIDE TRANSFORMATION
When Queen Victoria sent her telegram, her reign had already seen mechanics, economies, cities and lives transformed first by steam power and then by electricity generated from fossil fuels. Today, subsea cables are playing a vital role in our future offshore energy infrastructure, whether they are used for the development of competitive, clean and sustainable energy sources, or enabling more efficient production of oil & gas from reserves deep beneath the seabed.
The subsea cable innovations emerging now will be the vital connections that transform the world once more.
conventional cables at this voltage level, which previously have incorporated a metallic barrier layer such as lead sheath extrusion. With leading developers already seeking to harness energy using floating offshore wind from Europe, the US and Japan, 66kV will be a key enabler to maximise energy generated from floating applications.
66kV technology can also be used to deliver more power to subsea oil & gas production and processing equipment. For
example, cables operating at 66kV can allow more power to be transmitted from the shore to a distribution hub, including a subsea transformer that can distribute power out to the 6.6 or 11kV subsea infrastructure on the seabed. Equipment such as pumps, compressors, and other processing equipment operating at these lower voltages are being used by operators to enhance oil & gas recovery and extend offshore field lifetimes.
JDR Cables
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www.windenergynetwork.co.uk
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