Siemens Gamesa

Spain Euro Vestas

Siemens Gamesa Renewable Energy S.A.
Sociedad Anónima
PredecessorsGamesa Corporación Tecnológica S.A.
Siemens Wind Power A/S
Founded28 January 1976 (28 January 1976)
Key people
Andreas Nauen (CEO), as of June 2020[1]
Miguel Ángel López (Chairman)
ProductsWind turbines
ServicesWind services
Revenue4,611,983,000 euro[2] (2016) Edit this on Wikidata
477,377,000 euro[2] (2016) Edit this on Wikidata
302,396,000 euro[2] (2016) Edit this on Wikidata
Total assets5,895,083,000 euro[2] (31 December 2016) Edit this on Wikidata
OwnersSiemens AG (67%)
Number of employees
8,452[2] (2016) Edit this on Wikidata
ParentSiemens AG
SubsidiariesGamesa Gearbox
Gamesa Electric

Siemens Gamesa Renewable Energy S.A., formerly Gamesa Corporación Tecnológica S.A. (Spanish pronunciation: [ɡaˈmesa koɾpoɾaˈθjon teɣnoˈloxika]) and Grupo Auxiliar Metalúrgico S.A., is a Spanish-German wind engineering company based in Zamudio, Biscay, Spain. It manufactures wind turbines and provides onshore and offshore wind services. It is the world's second largest wind turbine manufacturer.[3]

The company is notable for its SG 10.0-193 wind turbine, the largest variant based on the Siemens D7 Platform, as well as being one of the largest wind turbines in the world. Its main competition will be the General Electric Haliade-X and the MHI-Vestas V164.[4]


Gamesa Corporación Tecnológica

Gamesa began operations in 1976 as Grupo Auxiliar Metalúrgico S.A., focused at that time on developing new technologies and applying them to emerging activities. These included robotics, microelectronics, aeronautics and the development of composite materials. It was founded by Juan Luis Arregui and Joseba Mikel Grajales.[5]

In 1994, Gamesa Eólica was created as a subsidiary specializing in the manufacture of wind turbines. The company became involved in the development, construction and operations of wind farms in 1995 and completed its first wind farm the following year. Gamesa had a 7-year partnership with Vestas that ended in 2002.[6]

The Corporation was officially listed on the stock exchange on 31 October 2000 and joined the selective IBEX 35 on 24 April 2001. In 2002, Gamesa acquired gearboxes manufacturer Echesa, generators manufacturer Cantarey, and converters manufacturer Enertrón.

Since 2006, the company has focused on technologies associated with sustainable energy, principally wind power. It has divested of its interests in aeronautics, which were sold off to form a new company known as Aernnova, and in services, which were sold off to form a new company known as Global Energy Services.

As part of the United Kingdom's move to expand its production of offshore wind energy production, Gamesa has committed to the expenditure of £133.7 million on a production factory and other facilities in the UK, and will also move its offshore wind division headquarters to London.[7][8]

In January 2014, Gamesa and French nuclear manufacturer Areva announced a preliminary deal to create a joint venture Adwen in the offshore wind power business.[9]. In 2017, Areva sold its stake in Adwen to Gamesa, after the merger of Gamesa and Siemens Wind Power was announced.[10][11]

Siemens Wind Power

History of Siemens Wind Power A/S started in 1980, when Danish irrigation system manufacturer Danregn diversified into the windturbine business. Its first wind turbines were machines with rotor diameters of around 10 m (33 ft) with generator powers of 20 to 30 kW (27 to 40 hp).[12][13][14] In 1981, the wind activities were separated into newly established company Danregn Vindkraft A/S, established by Peter Stubkjær Sørensen and Egon Kristensen in Brande, Denmark, with a capital of 300,000 kroner; the company's product was a 55 kW (74 hp), 15 m (49 ft) blade diameter turbine.[12][14][15][16]

The company changed its name from Danregn Vindkraft to Bonus Energy in 1983, an easier name for the English speaking North American market.[13][17]

In 1991, eleven 450 kW Bonus turbines were installed in the Vindeby Offshore Wind Farm, the first offshore wind farm in the world.[18][19]

The company sourced its first blades from Viborg based company Økær Vind Energi.[20] Later it sourced blades from LM Wind Power. In the late 1990s Bonus began to develop its own blades, beginning production in the early 2000s in Aalborg.[21][note 1]

Bonus A/S was sold to Siemens AG in 2004.[22] The sales and project management headquarters moved to Hamburg, Germany in May 2009.[23]

Siemens 2.3 MW Wind Power turbines at Wildorado Wind Ranch (2010)

In 2006, Siemens acquired a former LM Glasfiber wind turbine blade factory in Engesvang, Denmark.[24] In 2007, it constructed a blade factory in Fort Madison, Iowa, United States.[25] A hub factory in Ølgod began production in 2008.[26] A nacelle manufacturing plant was opened in Hutchinson, Kansas in December 2010.[27][28] Additionally Bonus Energy sales and service partner company AN Windenergie GmbH in Bremen (Germany) was acquired in 2005.[25][29]

In mid-2008 the company began testing of development prototypes of direct drive wind turbines; units based on the geared SWT-3.6–107 were installed in 2008 with a permanent magnet generator directly replacing the gearbox and alternator;[30][note 2] Successful tests led to development of a new production design by 2009.[32] A prototype of the new direct drive design, an IEC 61400 wind class IA, 3 MW machine (SWT 3.0–101 DD) was installed near Brande, Denmark in 2009.[32][33] The 3 MW design was launched as a product in April 2010 and significantly reduced complexity (half the components)[34] and lower nacelle weight than earlier 2.3 MW designs.[35] A 2.3 MW version for lower wind speeds (SWT-2.3–113) was launched in 2011.[36]

In 2010 Siemens Wind Power acquired 49% of A2SEA (an offshore wind farm installation company) from DONG Energy (now Ørsted A/S).[37][38] In 2017, A2SEA was sold to GeoSea.[39]

A factory established in Linggang (Siemens Wind Power Blades (Shanghai) Co., Ltd.) near the Yangshan Deep Water Port began production in 2010.[40] Additionally in December 2010 Siemens announced it would install a blade factory at an existing unused facility in Tillsonburg, Ontario, Canada.[41] In early 2011 Siemens and ABP announced the development of a £210 million turbine assembly plant, and dock development at Alexandra Dock, in Kingston upon Hull, UK.[42][43]

In May 2011 testing began of a prototype 6 MW direct drive design with a 120 to 154 m (394 to 505 ft) rotor, the design was launched as a product in November 2011.[44] In 2013 Siemens announced a development of its 3.6 MW design, the SWT 4.0–130 which used a rotor of diameter 130m with 4 MW rated power. At the same time the company introduced new product platform codes for its products, with 'G' indicating geared drive, and 'D' indicating direct drive, suffixed by a number indicating an approximate power class. The four initial product ranges were Siemens G2, G4, D3 and D6.[45]

In July 2012, the company agreed to supply DONG Energy with 300 direct drive, 75m blade, 6 MW SWT-6.0–154 turbines for the English offshore market from 2014. Two turbines are to be installed for testing at the Gunfleet Sands offshore wind farm.[46] The value of the contract was estimated at over £2 billion.[47][48] Prototype 6 MW machines were installed at the Gunfleet Sands 2 wind farm in 2013;[49] with the first full scale commercial installation of 6 MW machines at the 210 MW Westernmost Rough wind farm in 2014.[50] In September 2012 Siemens Wind announced the lay off of 615 of a workforce of around 1650 workers in the United States, citing reduced demand for wind turbines due to uncertainty concerning future tax break incentives in the USA for wind power.[51] (see United States Wind Energy Policy.)

In March 2014 Siemens and Associated British Ports (ABP) finalised the 2011 MOU to build a turbine factory in Hull, UK (Green Port Hull), and announced an additional facility near Paull, East Riding of Yorkshire, east of Hull which would manufacture rotor blades for turbines.[52][53] In 2014 the planned factory at Paull was abandoned, with all production to be concentrated at the Alexandra dock site.[54] Revised plans for the site submitted April 2015 included only a blade manufacturing factory at the site with no nacelle production.[55]

In 2015 Siemens upgraded its 6 MW offshore design to a rated 7 MW power with a larger permanent magnet generator,[56] and further to 8 MW in 2016.[57] The first order for the 7 MW design was awarded in October 2015 for 47 turbines in the Walney 3 offshore.[58]

In early 2015 Siemens announced it had reached agreements to build 2 GW of wind turbines in Egypt, and to construct a blade factory in that country, as part of a larger power generation agreement.[59][60] The €8 billion, 16.4 GW energy development deal was signed in June 2015, including an approximate 1000 worker blade factory in Ain Soukhna and 12 wind farms (600 turbine, 2 GW) in the Gulf of Suez and west Nile areas of Egypt.[61]

In August 2015 Siemens announced it was to construct a new nacelle manufacturing plant at Cuxhaven, Germany, an investment of £200 million. The plant was expected to become operational mid 2017, and employ 1000 people.[62][63] A €100 million blade plant to be built in the Tanger Automotive City (near Tanger-Med port) in Morocco was announced in early 2016.[64][65]

In February 2017 Siemens announced the closure of the Engesvang blade factory (Denmark), with the loss of 430 jobs, citing the plants inability to produce larger size blades.[66][67]


On 17 July 2016 Siemens and Gamesa announced their plan to merge their wind businesses, with the 59% stake of Siemens and the 41% stake of former Gamesa shareholders in the resulting company. Siemens paid €1 billion cash for its stake in Gamesa. The resultant company was headquartered in Spain, with an offshore operations headquartered in Hamburg, Germany and Vejle, Denmark. The combined business was the largest wind turbine manufacturer worldwide by installed capacity (~69 GW).[68][69] The merger became effective on 3 April 2017.

In 2019, SGRE agreed to purchase Senvion's European service fleet for €200 million ($222 million).[70]


Siemens Wind has R&D, and production facilities in Brande, Denmark. Blade production is located in Aalborg (Denmark), Tanger Automotive City (Morocco), Linggang (China), Fort Madison, Iowa (USA) and Tillsonburg, Ontario (Canada); with factories under construction or planned (2016) for Kingston upon Hull (UK) and Ain Soukhna (Egypt). By 2018, the hub factory in Ølgod was moved to the production in Brande.

Other established production sites included nacelle manufacture at Hutchinson, Kansas (USA, 1.6 GW).[71] As of 2018 the new offshore nacelle plant has been opened at Cuxhaven (Germany).

Siemens acquired the first of two Roll-on/roll-off turbine transport ships in 2016, converted from a container ship, to reduce logistics costs. A telescopic roof also allows Lift-on/lift-off with cranes.[72]


Siemens Gamesa is listed on the Dow Jones Sustainability Index,[73] the FTSE4Good Index[74] which is concerned with corporate social responsibility on the KLD Global Climate 100 Index, and on the Global 100 Index of the 100 most sustainable companies in the world.[75]

See also


  1. ^ "Management." Official Website. Retrieved 18 June 2020.
  2. ^ a b c d e
  3. ^ Koilparambil, Aby Jose (12 April 2018). "Siemens Gamesa seeks second wind by targeting bigger markets". Reuters. Retrieved 1 February 2019.
  4. ^ Hill, Joshua S. (18 January 2019). "Siemens Gamesa Unveils 10 Megawatt Offshore Wind Turbine". Clean Technica. Retrieved 1 February 2019.
  5. ^ "Siemens Gamesa, del taller de Vitoria a la super liga eólica" [Siemens Gamesa, from the Vitoria workshop to the wind super league]. Cinco Días (in Spanish). 22 March 2018. Retrieved 3 February 2019.
  6. ^ "Two wind giants go head to head -- Vestas and Gamesa split". Windpower Monthly. 2002. Archived from the original on 14 February 2016. Retrieved 30 September 2016.
  7. ^ Lawson, James. Can the UK Attract Offshore Wind Turbine Makers?, website, May 27, 2011. Retrieved 6 June 2011.
  8. ^ Gamesa. Gamesa In The Offshore Market Archived 11 May 2011 at the Wayback Machine, website 6 June 2011.
  9. ^ "Wind turbine firms Gamesa and Areva in joint venture". BBC. Retrieved 13 June 2014.
  10. ^ Lee, Andrew (6 January 2017). "Areva bows out as Adwen offshore wind stake passes to Gamesa". ReCharge. Retrieved 1 February 2019.
  11. ^ "Areva Sells Its Stake in Adwen to Gamesa for EUR 60 Million". Offshore Wind. 15 September 2016. Retrieved 2 February 2019.
  12. ^ a b "BONUS Energy Profile – History". Bonus Energy AS. Archived from the original on 31 March 2001. Retrieved 24 January 2013.
  13. ^ a b "Discover the unique power of the wind" (PDF). Vestas. pp. 11–12. Retrieved 27 September 2012.[permanent dead link]
  14. ^ a b Glen, Gregory (26 May 2009). Siemens Wind Power's supplier base: expectations and challenges (PDF). Wind Power & Industry. www.nätverketfö Kalmar, Sweden: Siemens. Archived from the original (PDF) on 25 August 2010. Retrieved 24 January 2013.
  15. ^ Grove-Nielsen, Erik. "NIVE and FolkeCenter". Retrieved 20 October 2010.
  16. ^ Ostrynski, Nathalie (29 March 2009). "Milliardæren fra Brande" [Millionaire from Brande]. Berlingske Tidende (in Danish). Retrieved 24 January 2013.
  17. ^ Beattie, David (20 December 2010). "Key Players in the Wind Energy". REVE. Retrieved 27 September 2012.
  18. ^ Wilkes, Justin. "Operational offshore wind farms in Europe, end 2009" (PDF). EWEA. Retrieved 24 January 2013.
  19. ^ Christensen, Allan S.; Madsen, Morten (29 August 2005). "Supply Chain study on the Danish offshore wind industry" (PDF). Offshore Center Danmark. Vindeby, p.34. Archived from the original (PDF) on 15 May 2016. Retrieved 24 January 2013.
  20. ^ Grove-Nielsen, Erik. "Økær Vind Energi 1977 – 1981". Retrieved 27 September 2012. Økær Vind Energi delivered the first 5 m blades for Bonus in December 1980 – for their prototype. At that time the company name was Danregn Vindkraft A/S
  21. ^ a b Sources:
  22. ^ Hoel, Amanda (1 November 2004). "A wind Bonus for Siemens". Retrieved 24 January 2013.
  23. ^ "Siemens opens new wind power HQ in Germany",, 12 May 2009, retrieved 24 January 2013
  24. ^ "Siemens expands its manufacturing capacity for wind turbines in Denmark" (Press release). Siemens. 2 February 2006. Retrieved 24 January 2013.
  25. ^ a b Nelson, Robert (2008). "Siemens Wind Power: Technical Developments" (PDF). Siemens via Texas Renewable Energy Industries Association (TREIA). Archived from the original (PDF) on 14 November 2012. Retrieved 24 January 2013.
  26. ^ Eilers, Henrik (11 February 2008). "Ny Siemens-fabrik i Ølgod er køreklar". Retrieved 24 January 2013.
  27. ^ McCoy, Daniel (5 May 2009). "Siemens plans wind turbine facility in Hutchinson". Wichita Business Journal. Retrieved 24 January 2013.
  28. ^ *"Siemens Opens New Wind Turbine Plant in Kansas". Agence France-Presse. 3 December 2010. Retrieved 24 January 2013.
  29. ^ "Siemens uebernimmt AN Windenergie GmbH". (in German). 3 November 2005. Retrieved 24 January 2013.
  30. ^ de Vries, Eize (14 October 2008), "Siemens Tests its Direct Drive: Will Direct Drive Bring Down the Cost of Energy from Large-Scale Turbines?",, retrieved 24 January 2013
  31. ^ Krøyer, Kent (18 October 2010). "Gearløs vindmølle gør Siemens sårbar over for høj pris på sjældent metal" (in Danish). Ingeniøren. Archived from the original on 19 October 2012. Retrieved 29 November 2013.
  32. ^ a b Next generation onshore wind turbines: Siemens installs prototype of three-megawatt direct drive wind turbine, Siemens, 3 December 2009, retrieved 24 January 2013
  33. ^ de Vries, Eize (3 December 2008), "An Exclusive Look at the New Siemens 3-MW Direct-Drive Turbine",, retrieved 24 January 2013
  34. ^ Buck, Christian (Spring 2013). "A new spin on production". Pictures of the future (Siemens magazine). Siemens. Retrieved 24 November 2013.
  35. ^ New Siemens Direct Drive wind turbine ready for sale, Siemens, 20 April 2010, retrieved 24 January 2013
  36. ^ Siemens launches new gearless wind turbine for low to moderate wind speeds, Siemens, 14 March 2011, retrieved 24 January 2013
  37. ^ Stromsta, Karl-Erik (29 June 2010). "Siemens buys 49% A2SEA stake to deepen offshore ties". Recharge. NHST Media Group. Archived from the original on 4 August 2012. Retrieved 24 January 2013.
  38. ^ "Antitrust authority approves Siemens as equity partner in A2SEA". 13 October 2010. Retrieved 24 January 2013.
  39. ^ "GeoSea completes acquisition of A2SEA". Offshore Wind Industry. 1 September 2017. Retrieved 3 February 2019.
  40. ^ Sources:
  41. ^ Siemens selects Tillsonburg, Ontario, as new home for Canadian wind turbine blade manufacturing facility, Siemens, 2 December 2010, retrieved 24 January 2013
  42. ^ Bounds, Andrew (20 January 2011). "Hull for wind turbine plant". Financial Times. Retrieved 22 January 2011.
  43. ^ "Siemens selects ABP as preferred bidder for UK wind turbine factory". (Press release). Siemens. 20 January 2011. Retrieved 22 January 2011.
  44. ^ Siemens launches new 6-MW direct drive offshore wind turbine, Siemens, 29 November 2011, retrieved 24 January 2013
  45. ^ Siemens launches new 4-megawatt offshore wind turbine (PDF) (press release), Siemens, 5 February 2013, retrieved 12 May 2014
  46. ^ Siemens to supply 300 offshore wind turbines to DONG Energy, Siemens, 19 July 2012, retrieved 24 January 2013
  47. ^ Murray, James (19 July 2012), "Siemens and Dong energy sign €2.5bn offshore wind power deal", The Guardian, retrieved 24 January 2013
  48. ^ Gosden, Emily (19 July 2012), "Dong and Siemens sign £2.3bn deal for giant UK wind turbines", The Telegraph, retrieved 24 January 2013
  49. ^ Gunfleet Sands test site for 6MW wind farm turbines, BBC News, 12 September 2013, retrieved 10 March 2016
  50. ^ "First Siemens 6MW rises at Rough",, 15 August 2014, retrieved 10 March 2016
  51. ^ Pitt, David (18 September 2012), "Siemens to lay off 615 in Iowa, Kansas, Florida",, Bloomberg LP, retrieved 24 January 2013
  52. ^ "Siemens confirm Green Port Hull wind turbine factory to be built", BBC News, 25 March 2014
  53. ^ Siemens to construct factory for offshore wind power in Great Britain (PDF) (Press Release), Siemens, 25 March 2014, retrieved 25 March 2014
  54. ^ "Siemens combines Humber sites". 14 November 2014. Retrieved 16 March 2015.
  55. ^ Pringle Brandon Perkins + Will; Blue Sky Planning, "Siemens Green Port Hull Alexandra Dock, 30 March 2015, Planning and Design and Access Statement" (PDF), (15/00393/RES) Demolition of buildings and erection of new buildings (including part of a single building of 22.476m high; 73' 9") for the manufacture of wind turbine blades and the assembly, maintenance, storage and distribution (Use Class B1, B2 and B8) of wind turbine components [...] (planning application), Hull City Council, §01.1–01.2, pp.6–7, retrieved 21 April 2015[permanent dead link]
  56. ^ Snieckus, Darius (11 March 2015), "Siemens boosts offshore wind turbine to 7MW",, retrieved 10 March 2016
  57. ^ "Siemens Rolls Out 8MW Wind Turbine". Offshore Wind. Retrieved 1 August 2016.
  58. ^ "Green light for Walney 3 build",, 28 October 2015, retrieved 15 November 2015
  59. ^ Egypt and Siemens to massively increase power generation capacity (PDF), Siemens, 14 March 2015, retrieved 16 March 2015
  60. ^ Mahadevan, Neetha (14 March 2015), "Siemens Signs $4.2 Billion Power Deals in Egypt",, retrieved 16 March 2015
  61. ^ Siemens awarded record energy orders that will boost Egypt’s power generation by 50% (PDF) (Press release), Siemens, 3 June 2015, retrieved 3 June 2015
  62. ^ Siemens to build wind power plant in Cuxhaven, Germany (Press release), Siemens, 5 August 2015, retrieved 5 August 2015
  63. ^ "Siemens to build Cuxhaven plant",, 5 August 2015, retrieved 5 August 2015
  64. ^ "Siemens strikes blade plant deal",, 10 March 2016, retrieved 10 March 2016
  65. ^ Siemens to build rotor blade factory for wind turbines in Morocco (PDF) (press release), Siemens, 10 March 2016, retrieved 10 March 2016
  66. ^ "Siemens to shut Danish blade plant",, 16 February 2017, retrieved 16 February 2017
  67. ^ "Siemens to shut Danish wind blade factory, lay off 430 people". 15 February 2017. Retrieved 16 February 2017.
  68. ^ Hirtenstein, Anna (17 June 2016). "Siemens, Gamesa Merge Units to Form World's Biggest Wind-Turbine Maker".
  69. ^ Rodriguez, Jose Elias (17 June 2016). "Siemens, Gamesa to form world's largest wind farm business". Reuters.
  70. ^ Liu, Leila Garcia da Fonseca and Daniel (23 October 2019). "A Closer Look at Siemens Gamesa's Deal for Senvion".
  71. ^ Ros Davidson (29 July 2016). "How Vestas won the Midwest". Windpower Monthly. Retrieved 1 August 2016.
  72. ^ "Siemens Wind Power presents first customized turbine transport vessel in Esbjerg: Rotra Vente". Press Releases – Siemens Global Website. 2 December 2016. Retrieved 7 December 2016.
  73. ^ "Sustainability Indices - Sustainability Indices". Archived from the original on 30 September 2007. Retrieved 17 September 2007.
  74. ^ "Sorry, the page you are looking for is no longer available or does not exist".
  75. ^ "Global 100". Corporate Knights.


  1. ^ The blade factory in Aalborg was established in part due to local experience in construction with fibreglass, as used at the Danyard Aalborg shipyard in construction of the Flyvefisken class patrol vessel.[21]
  2. ^ The quantity of permanent magnet material used in the generator has been estimated at around 2 tonnes.[31]