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Abstract

Wind energy is developing very rapidly and over 30 GW of capacity was installed worldwide in 2009. It is also continuing to mature, with rotor diameters and ratings steadily increasing. Now there are several commercial designs available with rotor diameters exceeding 100 m and ratings exceeding 5 MW. Although the majority of developments are installed onshore, offshore wind is slowly taking off and there are plans for around 40 GW in Great Britain alone. The rapid growth has been accompanied by better understanding of the design issues, so that blades, towers, and other components are now lighter than they were 30 years ago and can be produced more efficiently. The most significant trend in recent years has been the move towards direct-drive generators, eliminating gearboxes that have, at times, been troublesome. Permanent magnet generators are delivering further weight savings, and research that is funded both by governments and manufacturers promises to deliver further improvements in cost effectiveness.

Keywords

wind power wind energy wind turbines renewable energy technology developments

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References

Data drawn from publications and website of Institut fur Solare Energieversorgungstechnik, Germany, 2000–2008, available from www.iset.uni-kassel.de .

Welke

Nick-Leptin

Focus on wind power research. DEWI Magazin, 2006, no. 29, August, The German Wind Energy Institute.

Annual Report and Accounts. Vestas Wind Systems A/S, 2000–2008, Denmark.

Danish Energy Agency. Wind power in Denmark: technology, policies and results, 1999, available from http://193.88.185.141/Graphics/Publikationer/Forsyning_UK/ Wind_Power99.pdf.

Milborrow

D. J.

Wind rock solid as uncertainty reigns. Windpower Mon., 2009, 25(1), 51–56.

Milborrow

D. J.

What a difference a year can make. Windpower Mon., 2010, 26(1), 41–47.

HM Government. 2050 Pathways analysis, 2010, URN 10D/764, Department of Energy and Climate Change, London).

Carbon Trust. Offshore wind power: big challenge, big opportunity, 2008 (The Carbon Trust, Witney, UK).

Frey

Small turbines with big potential. Sun and Wind Energy, 2010, January.

10.

Robson

Environmental aspects of large-scale wind power systems in the UK. Proc. IEE, Part A, 1983, 130(9), 620–625.

11.

House of Commons Energy and Climate Change Committee. First special report – low carbon technologies in a green economy. Supplementary memorandum submitted by the Department of Energy and Climate Change, Annex A. HC 455, 2010 (TSO, London).

12.

ETSU. The assessment and rating of noise from wind farms, 1997 (ETSU, Harwell, Oxfordshire).

13.

Milborrow

D. J.

Quantifying the impacts of wind variability. Proc. Instn Civil Engrs, 2009, 162, the system data were drawn from Energinet, the system operator in West Denmark, 105–111.

14.

International Energy Agency. Variability of wind power and other renewables: management options and strategies, 2005 (OECD, Paris).

15.

Milborrow

D. J.

Managing variability, 2009, available from http://www.wwf.org.uk/ .

16.

International Energy Agency. World energy outlook, 2009 (OECD, Paris).

17.

European Wind Energy association. Pure power, wind energy targets for 2020 and 2030, 2009. Available from www.ewea.org .