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Last edited 09 Feb 2021
Offshore generation of hydrogen at far-from-shore wind farms
|To achieve a zero-carbon future, alternative methods of delivering energy, including its generation and distribution, must be seriously investigated for both technical and commercial viability. Maritime Expert Panel member, Neil Glover, discusses the opportunities for far-from-shore wind farms, and the opportunities for hydrogen that may result. Photo: Rampion windfarm, Nicholas Doherty, Unsplash|
Far-from-shore wind farms are now becoming technologically possible, but face significant challenges. What is not often appreciated is that these would also enable the wider use of hydrogen. An understanding of key aspects of far-from-shore wind turbine design is necessary to appreciate the dual opportunities that could be realised.
 Far-from-shore wind farms
In June 2015, the Carbon Trust report to the Scottish Parliament identified that the UK would require up to 55GW of wind energy by 2050 and that it would be necessary to move to deeper offshore waters to meet this goal. However, moving further from shore does not happen without overcoming some significant engineering challenges.
 Challenges ahead
Electrical transmission from near-shore wind farms is normally done using high-voltage alternating currents (HVAC). However, as transmission distances approach 100 miles, this option becomes less practical and High Voltage Direct Current (HVDC) systems may be required. HVDC systems require considerably larger and more costly offshore and onshore transformer and converter substations.
This is where the opportunity for hydrogen comes in. The benefits of hydrogen gas are striking. It emits no carbon dioxide and, if used more widely, would have a major impact on the decarbonisation of our fuel supply.
Hydrogen is a clean energy vector, whether generated by Steam Methane Reforming and Carbon Capture (SMR+CC) or by one of the several methods of electrolysis. New transportation methods are needed if we are to tap into far-from-shore energy to meet our sustainable, clean energy aspirations.
A far-from-shore wind farm, using floating wind turbines, has the potential to use decommissioned offshore platforms originally constructed for oil and gas production. The Brent platforms are an example that could be used as a hub for the facilities to produce hydrogen by electrolysis.
To explore this issue further, Neil Glover has authored an ICE briefing sheet which delves deeper into the opportunity and challenges ahead for hydrogen development, presenting some exciting alternative solutions to generate and distribute far from shore.
 About this article
 Related articles on Designing Buildings Wiki
- Environmental Impact Assessment.
- Nationally significant infrastructure projects.
- Planning now for hydrogen.
- Renewable energy.
- Steam methane reforming.
- Strategic Environmental Assessment.
- Wind Energy in the United Kingdom.
- Wind turbine.
 External references
- A Guide to Offshore Wind Farms.
- National Planning Policy Framework.
- Planning Inspectorate.
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