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Enercon

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Enercon GmbH
Company typeGmbH
IndustryWind power industry
Founded1984 (1984)
FounderAloys Wobben
Headquarters
Aurich
,
Germany
Key people
Hans-Dieter Kettwig (Managing Director)
ProductsWind turbines
Number of employees
~18,000
Websitewww.enercon.de

Enercon GmbH, based in Aurich, Lower Saxony, Germany, is the fourth-largest wind turbine manufacturer in the world and has been the market leader in Germany since the mid-nineties.[1] Enercon has production facilities in Germany (Aurich, Emden and Magdeburg), Sweden, Brazil, India, Canada, Turkey and Portugal. In June 2010, Enercon announced that they would be setting up Irish headquarters in Tralee.[2]

As of December 2017, Enercon had installed more than 26,300 wind turbines, with a power generating capacity exceeding 43 GW.[3] The most-often installed model is the E-40, which pioneered the gearbox-less design in 1993.[4] As of July 2011, Enercon has a market share of 7.2% world-wide (fifth-highest) and 59.2% in Germany.[5]

Currently Enercon supplies wind turbines to the British electricity company Ecotricity, including one billed as the UK's most visible turbine, an E-70 at Green Park Business Park.[6][7]

Enercon Headquarter in Aurich
E-Ship 1 leaving Dieppe

Technologies

One of Enercon's key innovations is the use of a gearless, direct drive mechanism, used in combination with an annular generator.[8] This is in contrast to most wind turbines, which use a potentially less reliable gearbox in order to increase the rotation speed of the generator. Other differences in Enercon's wind turbines are their distinctive drop-shaped generator housings (designed by Lord Norman Foster) and their towers, which are painted with green rings at the base to blend with their surroundings.

In 2002, the first Enercon E-112 prototype was installed in Egeln, Germany, with a power rating of 4.5 MW.[4] From July 2002 to October 2004, it was the biggest wind turbine in the world, until it was surpassed by the REpower 5M.[9][10] At the end of 2005, the E-112 was upgraded to achieve a 6 MW power rating.[4]

In 2008, the first E-126 turbines (successor of the E-112) were installed at various sites throughout Germany and Belgium, including the Estinnes wind farm (consisting of eleven E-126 turbines) in Belgium.[11] Although the E-126 turbine was initially developed with a power rating of 6 MW, it has since been upgraded to 7.5 MW. The E-82 turbine was also upgraded and is available in 2, 2.3, and 3 MW versions.[12]

Currently Enercon does not offer or supply wind turbines to offshore projects and has at times expressed skepticism about offshore wind parks.[13][14] Enercon was rumored to have been ready to supply turbines to Germany's Alpha Ventus offshore wind farm and to a near-shore park near Wilhelmshaven but did not do so.[15]

Turbines

Note: wind turbine designations in brackets mean the turbine is unavailable.

Model Number Rated Power Output Rotor Diameter (meters) Hub Height (meters) Notes Source(s)
(E-15/16) 55 kW 15 Developed 1984, no longer available [4][16][17]
(E-17) 80 kW 17 Developed and installed 1988, no longer available [4][18]
(E-32) 100 - 300 kW 32 Developed and installed 1988, no longer available [4][19]
E-33 330 kW 33.4 37, 44, 50 [4][20]
(E-40) 500 - 600 kW 40 First gearless drive, no longer available [4][21][22]
E-44 900 kW 44 45, 55 [4][20]
E-48 800 kW 48 50, 55, 56, 60, 65, 76 [4][20]
E-53 800 kW 52.9 60, 73 Prototype developed 2006 [4][20]
(E-66) 1.5 MW - 2.0 MW 66 & 70 Prototype developed 1995, no longer available
E-70 2.3 MW 71 57, 58, 64, 70, 74.5, 84, 98, 113 Direct drive [4][20]
E-82 2 MW 82 78, 84, 98, 108 Direct drive [4][20]
E-82 2.3 MW 82 78, 84, 98, 108, 138 Direct drive [4][20]
E-82 3 MW 82 78, 84, 98, 108, 138 Direct drive [4][20]
E-92 2.3 MW 92 84, 98, 108, 138 Direct drive
 [23]
E-101 3 MW 101 99, 124, 135, 149 Direct drive
Prototype installed June 2011 		[4][20]
(E-112) 4.5 - 6 MW 112 & 114 108, 124 Replaced by E-126, no longer available [4][24][25]
E-115 3.0 MW 115 92.5-149 Direct drive [26]
E-126 7.56 MW (first version 6.0 MW) 126 135 Prototype developed October 2007 [4][20]
E-126 EP3 4.0MW 4.0 MW 126 86, 116, or 135
E-138 EP3 3.5MW 139 81, 111, 131, or 160
E-126 EP4 4.2MW 4.2 MW 126 135 Prototype installed March 2016 near Lelystad, Netherlands
E-141 EP4 4.2MW 4.2 MW 141 159 Prototype prepared for late 2016, based on E-126 EP4. 30-year design life [27]

Patent dispute

Enercon was prohibited from exporting their wind turbines to the US until 2010 due to alleged infringement of U.S. patent 5,083,039 .[28][29] In a dispute before the United States International Trade Commission, Enercon did not challenge the validity of the US patent but argued that their technology was not affected. The ITC decided that the patent covered the technology in question and banned Enercon turbines from the US market until 2010.[30] Later on, a cross patent agreement was made with the competitor General Electric, the successor of Kenetech, after similar claims of Enercon against GE. According to a NSA employee detailed information concerning Enercon was passed on to Kenetech via ECHELON.[31] The aim of the alleged industrial espionage against Enercon was the forwarding of details of Wobben's generator technology to a US firm.[32]

  • E-112 at Cuxhaven
    E-112 at Cuxhaven
  • E-70 at Green Park Business Park
    E-70 at Green Park Business Park
  • E-66 at Swaffham's Ecotech centre, with observation deck below the nacelle
    E-66 at Swaffham's Ecotech centre, with observation deck below the nacelle
  • Brown meets green: Enercon wind turbines at oil refinery
    Brown meets green: Enercon wind turbines at oil refinery
  • E-32 on the North Sea coast
    E-32 on the North Sea coast
  • Enercon E-48 in the Wind Farm near the Medieval village of Tocco da Casauria in Italy.
    Enercon E-48 in the Wind Farm near the Medieval village of Tocco da Casauria in Italy.
  • Wind farm with 3 Enercon E-48 in Stella, Liguria, Italy
    Wind farm with 3 Enercon E-48 in Stella, Liguria, Italy
  • Enercon E-112
    Enercon E-112
  • Enercon E-82
    Enercon E-82
  • Enercon E-82
    Enercon E-82
  • Enercon E-101
    Enercon E-101
  • Enercon E-126
    Enercon E-126

Estinnes windfarm

11x E126 Estinnes windfarm Belgium july 2010, two months before completion, see unique 2 part blades
11x E126 7+MW turbines Estinnes windfarm Belgium 10 October 2010, after completion

See also

References

  1. ^ Simon, Hermann: Hidden Champions of the 21st Century : Success Strategies of unknown World Market Leaders. London: Springer, 2009.- ISBN 978-0-387-98147-5
  2. ^ "55 IT and wind jobs created in Tralee". June 2010. Archived from the original on 28 March 2012. Retrieved 15 July 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  3. ^ "Enercon at a Glance". 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  4. ^ a b c d e f g h i j k l m n o p q r "Enercon Chronology". 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  5. ^ "Market Shares". 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  6. ^ "Ecotricity: Our Partners". Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  7. ^ "Green Park, Reading: The UK's Most Visible Wind Turbine". Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  8. ^ Enercon (July 2002). "Annular generator". Retrieved 15 July 2011.
  9. ^ dpa (Deutsche Presse-Agentur) (July 2002). "Enercon errichtet grösstes Windrad der Welt bei Magdeburg" (in German). Retrieved 15 July 2011.
  10. ^ "REpower Systems SE: 5M" (in German). Archived from the original on 28 September 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  11. ^ "The Wind Power Database: Estinnes Wind Farm". 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  12. ^ "ENERCON Wind Energy Converters, Product Overview" (PDF). 2011. Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  13. ^ "Windblatt" (PDF). March 2009. Retrieved 15 July 2011.
  14. ^ "'We're not afraid of offshore, but we decided to put 150% into onshore'". Recharge. 2016 [2015]. Retrieved 23 February 2017. {{cite web}}: Cite has empty unknown parameter: |1= (help)
  15. ^ "More MW/t, the offshore imperative.(megawatt thermal)(Enercon (Germany))". March 2011. Retrieved 15 July 2011.
  16. ^ "The Wind Power: Database (Enercon E-15)". September 2010. Retrieved 15 July 2011.
  17. ^ "The Wind Power: Database (Enercon E-16)". September 2010. Retrieved 15 July 2011.
  18. ^ "The Wind Power: Database (Enercon E-17)". September 2010. Retrieved 15 July 2011.
  19. ^ "The Wind Power: Database (Enercon E-32)". September 2010. Retrieved 15 July 2011.
  20. ^ a b c d e f g h i j "Enercon Wind Energy Converters: Technology and Service" (PDF). Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  21. ^ "The Wind Power: Database (Enercon E-40, 500 kW)". September 2010. Retrieved 15 July 2011.
  22. ^ "The Wind Power: Database (Enercon E-40, 600 kW)". September 2010. Retrieved 15 July 2011.
  23. ^ http://www.enercon.de/p/downloads/WB_01-2012_en_web.pdf
  24. ^ "The Wind Power: Database (Enercon E-112, 4500 kW)". September 2010. Retrieved 15 July 2011.
  25. ^ "The Wind Power: Database (Enercon E-112, 6000 kW)". September 2010. Retrieved 15 July 2011.
  26. ^ E-115 / 2,500 kW
  27. ^ "Enercon raises the bar". 14 April 2017. Retrieved 22 December 2017. {{cite web}}: Unknown parameter |subscription= ignored (|url-access= suggested) (help)
  28. ^ "Enercon vs. International Trade Commission and Zond Energy Systems". Retrieved 15 July 2011. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  29. ^ Space Daily Staff Writers (April 2008). "The Greening of Patent Litigation". Retrieved 15 July 2011.
  30. ^ "In the matter of certain variable speed wind turbines and components thereof" (PDF). U.S. International Trade Commission. November 1996. Retrieved 8 May 2017.
  31. ^ Schröm, Oliver (30 October 1999). "Verrat unter Freunden" [Treachery among friends] (in German). Die Zeit (Zeit Online). Archived from the original on 20 April 2010. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  32. ^ Echelon Rapport, EU Parliament
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