[3] 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.

[5] The corporation was officially listed on the stock exchange on 31 October 2000 and joined the selective IBEX 35 on 24 April 2001.

[8][9] 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.

[14][15][16] 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.

[14][16][17][18] The company changed its name from Danregn Vindkraft to Bonus Energy in 1983, an easier name for the English speaking North American market.

[29][30] Additionally Bonus Energy sales and service partner company AN Windenergie GmbH in Bremen (Germany) was acquired in 2005.

[27][31] 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;[32][note 2] Successful tests led to development of a new production design by 2009.

[34] 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.

[41] A factory established in Linggang (Siemens Wind Power Blades (Shanghai) Co., Ltd.) near the Yangshan Deep Water Port began production in 2010.

[42] Additionally in December 2010 Siemens announced it would install a blade factory at an existing unused facility in Tillsonburg, Ontario, Canada.

[47] 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.

[63] In August 2015 Siemens announced it was to construct a new nacelle manufacturing plant at Cuxhaven, Germany, an investment of £200 million.

[64][65] A€100 million blade plant to be built in the Tanger Automotive City (near Tanger-Med port) in Morocco was announced in early 2016.

It is a project of the Danish group Ørsted located in English waters, specifically 89 kilometers from the east of the coast, in which it will also carry out maintenance, and will install its SG 8.0-167 DD model turbines, with a total capacity of 1,386 MW.

[72] In 2018, Taiwanese manufacturer Swancor began supplying wind turbine resin to Siemens Gamesa.

[76] In 2022, Siemens Gamesa began partnering with Taiwan-based green material producer Swancor Holding Co., and signed an agreement to install 3GW of offshore wind power in Taiwan.

Blade production is located in Aveiro (Portugal), 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).