Xodus study concludes that offshore wind technology could be viable off Guernsey
A preliminary feasibility study has concluded that offshore wind technology could be viable in several locations off Guernsey’s coast.
The study was carried out by Xodus Group, an engineering consultancy with experience in the oil and gas, utilities and renewable industries, and funded jointly by the States of Guernsey and Guernsey Electricity. It concluded that there are a range of technically feasible options to develop an offshore wind project off Guernsey. Other findings included:
- Developing a modest project, of the order 30MW, will achieve the fundamental objective of an independent supply of electricity together with the benefits associated with energy
diversification namely: security; price certainty; sustainability and lower carbon.
- The cost is higher than current French importation and on-island generation
- To mitigate the higher cost it is recommend that the majority of the project is funded by the States of Guernsey to secure the lowest cost of finance.
- At this early stage of analysis the preferred site is far offshore towards the 12nm boundary. This location is in relatively deep water and most suited to the new floating wind turbine structures.
- The lowest cost site is likely to be in the shallow waters off the north coast (or any coastal site). However, this near shore location may have visual and other human impact.
- Consideration should be given to pursuing an extended wave and wind data gathering programme that could be relatively low cost but high value for the future.
of Guernsey Renewable Energy Team have been progressing the recommendations
following receipt of the report, including the addition of remote sensing
equipment at Chouet headland alongside the existing wind monitor.
Renewable Energy team will seek to continue to progress its work in this area,
before discussing the viability of such a project with the Committee for the
Environment & Infrastructure in due course.
Shane Langlois, member of the Committee for the Environment &
‘A 30MW offshore wind farm has the
potential to generate around one third of Guernsey’s current electricity
requirements. While the cost of electricity generated by wind turbines would,
at the moment, be more expensive than importing or on-island generation, it is
clear that the gap between the two is narrowing and will likely continue to do
so as the technology further evolves. Indeed recent tenders in northern Europe
have been at very competitive prices. The Committee welcomes the findings of
this study and, while not without risk, believes there are significant
opportunities in progressing this work, such as security of supply, energy
independence, fixed prices and lower emissions.’
Barnes, Lead Officer for the Renewable Energy Team, said:
‘Wind technology is continuing to mature
and will offer increased levels of security and independence of supply.
Guernsey is well positioned to benefit from those developments and the
Renewable Energy Team will continue working closely with Guernsey Electricity
to further develop the potential opportunities identified.’
Blondel, Head of Assets at Guernsey Electricity, said:
‘Guernsey Electricity continues to monitor and assess all forms of renewable energy and energy storage technologies. Our strategic planning takes account of the island’s aspirations for energy diversification and security at an affordable price. We believe community based macro scale renewable generation as identified in this study combined with suitable means of energy storage will be a commercially viable option within the 2020s and, combined with careful management of energy demand and other forms of embedded energy harnessing, the island will achieve its aims for a sustainable future’
The full study can be found at www.guernesyrenewableenergy.co...