A preliminary feasibility study, carried out by Xodus Group and funded jointly by the States of Guernsey and Guernsey Electricity, has found that offshore wind technology could be viable in several locations off Guernsey and that there are a range of technically feasible options to develop a 30MW offshore wind project.
Developing a modest project of around 30MW will achieve the fundamental objective of an independent supply of electricity together with the benefits associated with energy diversification: security, price certainty, sustainability, and lower carbon footprint, according to the States of Guernsey Renewable Energy Team (RET).
The cost would be higher than current French importation and on-island generation and, to mitigate the higher cost, it is recommend in the study that the majority of the project is funded by the States of Guernsey to secure the lowest cost of finance.
The RET 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.
The Renewable Energy Team said it 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.
Deputy Shane Langlois, member of the Committee for the Environment & Infrastructure, said: “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.”
Peter 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.”
Stuart 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.”