United Kingdom

United Kingdom

Lower UK wind variability cuts project LCOE

UK: A new report has found the UK's offshore wind availability is less variable than previously thought, boosting projection estimates and strengthening economic viability.

New data compiled by DNV GL has reduced the UK's IAV rate
New data compiled by DNV GL has reduced the UK's IAV rate

The report by technical analysis firm DNV GL, for the UK's seabed landlord, the Crown Estate, found the UK's inter-annual variability of wind speed has a range of between 4-5.5% - down from the previously thought 6%.

DNV GL measured new regional wind speeds in project locations to find that the IAV was lower than the 6% figure originally thought from measurements taken in the 1990s.

As a result of the revised figures, DNV GL said the levelised cost of energy (Lcoe) could be reduced by up to 0.7%.

The results have been presented to the International Electrotechnical Committee (IEC) 61400-15 working group and the UK Wind Resource Group that were interested in the project, according to the Crown Estate.

"This report reveals a significant improvement in our understanding of the UK's offshore wind resource.

"We hope that industry will begin to reflect this reduced variability into their assessments to help create a more attractive financing proposition for investors and support continued cost reduction over the long term," said the Crown Estate's senior development manager Matthew Clear.

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