2024-11-24
http://w3.windfair.net/wind-energy/pr/24715-report-the-crown-estate-offshore-wind-speed-tests

New report reveals better outlook for UK offshore wind speed variability

A new study into the UK’s offshore wind resource has revealed that variability in wind speeds is significantly lower than previously understood.

The report, undertaken by DNV GL on behalf of The Crown Estate, paves the way for improved project projections which can help bring down the cost of energy.

Historical studies of the inter-annual variability (IAV) of wind speed have focused on measurements from onshore meteorological stations. These studies have created an industry standard estimate of wind speed IAV at 6%, which has been widely adopted across many global markets since the early 90’s.

‘Study on UK Offshore Wind Variability’ has now revealed an IAV range of 4-5.5% to be more appropriate across the UK offshore environment.

"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 Matthew Clear, Senior Development Manager at The Crown Estate.

The Crown Estate’s Matthew Clear said: “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.”

The revised figure was established through creating new regional wind speed indices for areas of UK offshore waters where wind farm development is taking place. These indices were then used to derive more accurate estimates that were validated against sources of offshore measured data.

Marie-Anne Cowan, DNV GL’s Project Development team, said: “DNV GL were delighted to work with The Crown Estate and undertake a study into UK offshore wind climate variability, with the intent to reduce the LCoE for future offshore wind projects. The Crown Estate’s unparalleled access to wind data within UK offshore waters, coupled with DNV GL’s extensive experience of performing wind resource assessments for UK offshore projects, allowed a unique opportunity to perform a validation of the results presented in the study. This is a topic closely aligned with DNV GL’s previous offshore wind work, which includes our Offshore Wind Cost Reduction Manifesto, and we look forward to working together with industry to achieve reduced LCoE for future offshore wind projects.”

The findings have also been presented to the International Electrotechnical Committee (IEC) 61400-15 working group and the UK Wind Resource Group who have both expressed support for the work undertaken.

A spokesperson on behalf of the International Electrotechnical Commission (IEC), the world’s leading organisation for the preparation and publication of International Standards for all electrical, electronic and related technologies, said: “Whilst the study focused on IAV for UK offshore wind, the methods used could have a positive impact on financing for the wider global wind energy sector. For this reason, the wind resource experts meeting as part of the International Electrotechnical Commission (IEC) 61400-15 working group were consulted to peer review the work and consider the implications for industry practice and standards.”

Read the report here:

Source:
The Crown Estate
Author:
Press Office
Link:
www.thecrownestate.co.uk/...
Keywords:
report, The Crown Estate, offshore, wind speed, tests




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