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Early experiences with UK Round 1 offshore wind farms.

By Y. Feng, P.J. Tavner and H. Long


The UK government plans that offshore wind power should play a major part in meeting the UK’s renewable energy and carbon emission targets by 2020. The pioneer UK round 1 offshore wind farm projects, based on sites let in 2001, were supported by the UK Department of Trade and Industry’s ‘Offshore wind capital grants scheme’. Round 2 offshore sites were let in 2003 and the successful bidders for round 3 offshore sites were announced in January 2010; therefore the published reports from round 1 could provide valuable information on offshore experiences for the operation of later rounds. This paper reviews the performances of those UK round 1 offshore wind farms during their early operation based on published reports from the ‘Offshore wind capital grants scheme’ available for the period 2004–2007 and early operational issues. UK round 1 offshore wind farms have achieved an average cost of energy of £69 per MWh, in line with expectations, but at 80·3% the average availability fell short of expectations. The availability of UK round 1 offshore wind farms has been shown to decrease with increasing wind speed therefore it is recommended that improvements of availability at wind speeds of 7–14 m/s will be needed to meet more ambitious economic targets.\ud \u

Topics: Renewable energy, Reviews, Management.
Publisher: Thomas Telford
Year: 2010
DOI identifier: 10.1680/ener.2010.163.4.167
OAI identifier:

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  3. (2008). Eight years O&M experience from Middelgrunden offshore wind farm.
  4. (2005). Energy Agency
  5. (2005). Energy Agency), OECD (European Organisation for Economic Co-operation and Development),
  6. (2005). for Business Enterprise and Regulatory Reform) (2004–2009) Offshore wind capital grants scheme annual reports: Scroby Sands offshore wind farm 1st and 2nd annual report,
  7. (2008). for Business, Enterprise and Regulatory Reform
  8. (2006). Keeping the Lights on Nuclear, Renewables and Climate Change, Sixth report of session 2005–06, Vol. I, The Stationery Office Limited,
  9. (2004). Monitoringand Evaluation of Blyth Offshore Wind Farm: Projecting O&M Costs of UK Offshore Wind Farms based on Experience at Blyth.
  10. (2007). North Hoyle offshore wind farm: design and build.
  11. of Energy and Climate Change) (2009a) A Prevailing Wind: Advancing UK Offshore Wind Deployment.
  12. of Energy and Climate Change) (2009b) Digest of United Kingdom Energy Statistics, a national statistics publication.
  13. (2006). of Trade and Industry
  14. (2008). Operations Report
  15. (2006). Powering the Nation: A Review of Costs of Generating Electricity.
  16. (2009). Reliability of wind turbine subassemblies.
  17. (2009). Renewable Energy Laboratory
  18. (2009). Samsø Offshore Wind Farms. See windfarm/ (accessed
  19. (2007). What price O&M? Operation and maintenance costs need to be factored into the project costs of offshore wind farms at an early stage.
  20. (2006). Wind Turbines: Fundamentals, Technologies, Application, Economics, 2nd edn.

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