Siemens Gamesa Renewable Energy, S.A. was formed in 2017 in a merger of

Siemens Siemens AG ( ) is a German multinational technology conglomerate. It is focused on industrial automation, building automation, rail transport and health technology. Siemens is the largest engineering company in Europe, and holds the positi ...

' Wind Power division with Gamesa Corporación Tecnológica, S.A.; it is a Spanish-German

wind engineering Wind engineering is a subset of mechanical engineering, structural engineering, meteorology, and applied physics that analyzes the effects of wind in the natural and the built environment and studies the possible damage, inconvenience or benefit ...

company based in

Zamudio Zamudio is a town and municipality located in the province of Biscay, in the Autonomous Community of Basque Country, northern Spain. Lycée Français de Bilbao, the French international school of the Bilbao metropolitan area The Bilbao Metr ...

Biscay Biscay ( ; ; ), is a province of the Basque Country (autonomous community), Basque Autonomous Community, heir of the ancient Lordship of Biscay, lying on the south shore of the Bay of Biscay, eponymous bay. The capital and largest city is Bilb ...

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

. The company has two other main sites in Spain: one in

Madrid Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...

and the other in

Sarriguren Sarriguren is a locality located in the municipality of Valle de Egüés, in Navarre province, Spain, Spain. As of 2020, it has a population of 15,665. Sarriguren is the capital of the municipality of Valle de Egüés. Geography Sarriguren is lo ...

. Other than its headquarters, its onshore business is primarily based in Spain, while the offshore business is based in Germany and Denmark. It is the world's second largest

wind turbine manufacturer This is a list of notable wind turbine manufacturers and businesses that manufacture major wind turbine components. Small wind turbine manufacturers * Bergey (United States) * Bornay (Spain) * Enessere (Italy) * Hi-VAWT (Taiwan) * quiet ...

behind

Vestas Vestas Wind Systems A/S is a Danish manufacturer, seller, installer, and servicer of wind turbines that was founded in 1945. The company operates manufacturing plants in Denmark, Germany, the Netherlands, Taiwan, India, Italy, Romania, the Un ...

. The company is notable for its SG 14.0-222 wind turbine, the largest variant based on the , as well as being one of the largest wind turbines in the world. This turbine model is currently contracted to be installed in 14 projects globally, notably in Taiwan, the United Kingdom and the United States. Siemens Gamesa's main competition is the General Electric Haliade-X and the Vestas V236.

History

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 Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots. Within mechanical engineering, robotics is the design and construction of the physical structures of robots, while in computer s ...

microelectronics Microelectronics is a subfield of electronics. As the name suggests, microelectronics relates to the study and manufacture (or microfabrication) of very small electronic designs and components. Usually, but not always, this means micrometre ...

aeronautics Aeronautics is the science or art involved with the study, design process, design, and manufacturing of air flight-capable machines, and the techniques of operating aircraft and rockets within the atmosphere. While the term originally referred ...

and the development of

composite material A composite or composite material (also composition material) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a ...

s. It was founded by Juan Luis Arregui and Joseba Mikel Grajales. 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

that ended in 2002. The corporation was officially listed on the stock exchange on 31 October 2000 and joined the selective

IBEX 35 The IBEX 35 (IBerian IndEX) is the benchmark stock market index of the Bolsa de Madrid, Spain's principal stock exchange. Initiated in 1992, the index is administered and calculated by Sociedad de Bolsas, a subsidiary of Bolsas y Mercados Espa� ...

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 Energy system, Energy is sustainability, sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Definitions of sustainable energy usually look at its effects on the e ...

, principally

wind power Wind power is the use of wind energy to generate useful work. Historically, wind power was used by sails, windmills and windpumps, but today it is mostly used to generate electricity. This article deals only with wind power for electricity ge ...

. 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 The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

'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. In January 2014, Gamesa and French nuclear manufacturer

Areva Areva S.A. was a French multinational group specializing in nuclear power, active between 2001 and 2018. It was headquartered in Courbevoie, France. Before its 2016 corporate restructuring, Areva was majority-owned by the French state through t ...

announced a preliminary deal to create a joint venture Adwen in the offshore wind power business. In early 2015 Gamesa continued its expansion of UK services by acquiring B9 Energy. In 2017, Areva sold its stake in Adwen to Gamesa, after the merger of Gamesa and

Siemens Wind Power Siemens AG ( ) is a German Multinational corporation, multinational technology Conglomerate (company), conglomerate. It is focused on Industrial control system, industrial automation, Building automation , building automation, rail transport a ...

was announced.

Siemens Wind Power

History of Siemens Wind Power A/S started in 1980, when Danish irrigation system manufacturer Danregn diversified into the wind turbine business. Its first wind turbines were machines with rotor diameters of around with generator powers of . 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 Brande is a railway town with a population of 7,394 (1 January 2025)kroner; the company's product was a , blade diameter turbine. The company changed its name from Danregn Vindkraft to Bonus Energy in 1983, an easier name for the English speaking North American market. In 1991, eleven 450 kW Bonus turbines were installed in the Vindeby Offshore Wind Farm, the first offshore wind farm in the world. The company sourced its first blades from Viborg based company Økær Vind Energi. Later it sourced blades from

LM Wind Power LM Wind Power (formerly LM Glasfiber) is a Danish manufacturer of wind turbine blades, and a subsidiary of GE Vernova. History LM Wind Power was founded in 1940, as ''Lunderskov Møbelfabrik'' (Lunderskov furniture factory) in the small town Lun ...

. In the late 1990s Bonus began to develop its own blades, beginning production in the early 2000s in

Aalborg Aalborg or Ålborg ( , , ) is Denmark's List of cities and towns in Denmark, fourth largest urban settlement (behind Copenhagen, Aarhus, and Odense) with a population of 119,862 (1 July 2022) in the town proper and an Urban area, urban populati ...

. Sources: * * * Bonus A/S was sold to Siemens AG in 2004. The sales and project management headquarters moved to

Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germany by population, second-largest city in Germany after Berlin and List of cities in the European Union by population within city limits, 7th-lar ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

in May 2009. In 2006, Siemens acquired a former

LM Glasfiber LM Wind Power (formerly LM Glasfiber) is a Danish manufacturer of wind turbine blades, and a subsidiary of GE Vernova. History LM Wind Power was founded in 1940, as ''Lunderskov Møbelfabrik'' (Lunderskov furniture factory) in the small town Lun ...

wind turbine blade factory in

Engesvang Engesvang is a town with a population of 2,190 (1 January 2025),Fort Madison Fort Madison is a city in and a county seat of Lee County, Iowa, Lee County, Iowa, United States along with Keokuk, Iowa, Keokuk. Of Iowa's 99 counties, Lee County is the only one with two county seats. The population was 10,270 at the time of ...

, Iowa, United States. A hub factory in

Ølgod Ølgod is a railway town on the Jutland peninsula in southwest Denmark. As of 1 January 2025, it had a population of 3,713.nacelle A nacelle ( ) is a streamlined container for aircraft parts such as Aircraft engine, engines, fuel or equipment. When attached entirely outside the airframe, it is sometimes called a pod, in which case it is attached with a Hardpoint#Pylon, pylo ...

manufacturing plant was opened in

Hutchinson, Kansas Hutchinson is the largest city in and the county seat of Reno County, Kansas, Reno County, Kansas, United States. The city is located on the Arkansas River. It has been home to salt mines since 1887 (thus its nickname of "Salt City") but locals ...

in December 2010. Additionally Bonus Energy sales and service partner company AN Windenergie GmbH in

Bremen Bremen (Low German also: ''Breem'' or ''Bräm''), officially the City Municipality of Bremen (, ), is the capital of the States of Germany, German state of the Bremen (state), Free Hanseatic City of Bremen (), a two-city-state consisting of the c ...

(Germany) was acquired in 2005. In mid-2008 the company began testing of development prototypes of

direct drive A direct-drive mechanism is a mechanism design where the force or torque from a prime mover is transmitted directly to the effector device (such as the drive wheels of a vehicle) without involving any intermediate couplings such as a gear train ...

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; Successful tests led to development of a new production design by 2009. A prototype of the new direct drive design, an

IEC 61400 IEC 61400 is an international standard published by the International Electrotechnical Commission (IEC) regarding wind turbines. Purpose and function IEC 61400 is a set of design requirements made to ensure that wind turbines are appropriately ...

wind class IA, 3 MW machine (SWT 3.0–101 DD) was installed near Brande, Denmark in 2009. The 3 MW design was launched as a product in April 2010 and significantly reduced complexity (half the components) and lower nacelle weight than earlier 2.3 MW designs. A 2.3 MW version for lower wind speeds (SWT-2.3–113) was launched in 2011. In 2010, Siemens Wind Power acquired 49% of A2SEA (an

offshore wind farm Offshore wind power or offshore wind energy is the generation of electricity through wind farms in bodies of water, usually at sea. There are higher wind speeds offshore than on land, so offshore farms generate more electricity per amount of ca ...

installation company) from

DONG Energy Dong or DONG may refer to: Places * Dong Lake, or East Lake, a lake in China * Dong, Arunachal Pradesh, a village in India * Dong (administrative division) (동 or 洞), a neighborhood division in Korea Person names Surnames * Dǒng (surna ...

(now Ørsted A/S). In 2017, A2SEA was sold to

GeoSea In Ancient Greece, a deme or (, plural: ''demoi'', δήμοι) was a suburb or a subdivision of Athens and other city-states. Demes as simple subdivisions of land in the countryside existed in the 6th century BC and earlier, but did not acquire ...

. A factory established in Linggang (Siemens Wind Power Blades (Shanghai) Co., Ltd.) near the Yangshan Deep Water Port began production in 2010. Additionally in December 2010 Siemens announced it would install a blade factory at an existing unused facility in

Tillsonburg, Ontario Tillsonburg is a town in Oxford County, Ontario, Canada with a population of 18,615 located about 50 kilometres southeast of London, on Highway 3 at the junction of Highway 19. History Prior to European settlement, the present site of Tillson ...

, Canada. 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 Kingston upon Hull, usually shortened to Hull, is a historic maritime city and unitary authorities of England, unitary authority area in the East Riding of Yorkshire, England. It lies upon the River Hull at its confluence with the Humber Est ...

, UK. In May 2011 testing began of a prototype 6 MW direct drive design with a rotor, the design was launched as a product in November 2011. 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. In July 2012, the company agreed to supply

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 Gunfleet Sands Offshore Wind Farm is a 172 MW wind farm about off the Clacton-on-Sea coast in the Northern Thames Estuary. The 108 MW Gunfleet Sands 1 wind farm gained planning consent in 2003/4; in 2006 DONG Energy (now Ørsted) ...

. The value of the contract was estimated at over £2 billion. Prototype 6 MW machines were installed at the Gunfleet Sands 2 wind farm in 2013; with the first full scale commercial installation of 6 MW machines at the 210 MW Westernmost Rough wind farm in 2014. 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 US for wind power. (see

United States Wind Energy Policy Modern United States wind energy policy coincided with the beginning of modern wind industry of the United States, which began in the early 1980s with the arrival of utility-scale wind turbines in California at the Altamont Pass wind farm. Since ...

.) 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 Paull (archaic ''Paul'', ''Pall'', ''Pawle'', ''Pawel'', ''Paulle'', ''Paghel'', ''Paghill'', ''Paghil'', ''Pagula'') is a village and civil parish in Holderness, in the East Riding of Yorkshire, England, lying on the north bank of the Humber ...

, east of Hull which would manufacture rotor blades for turbines. In 2014 the planned factory at Paull was abandoned, with all production to be concentrated at the Alexandra dock site. Revised plans for the site submitted April 2015 included only a blade manufacturing factory at the site with no nacelle production. In 2015 Siemens upgraded its 6 MW offshore design to a rated 7 MW power with a larger permanent magnet generator, and further to 8 MW in 2016. The first order for the 7 MW design was awarded in October 2015 for 47 turbines in the Walney 3 offshore. In early 2015 Siemens announced it had reached agreements to build 2 GW of wind turbines in

Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...

, and to construct a blade factory in that country, as part of a larger power generation agreement. The €8 billion, 16.4 GW energy development deal was signed in June 2015, including an approximate 1000 worker blade factory in

Ain Soukhna Al-'Ain al-Sokhna ( , "the Hot Spring") is a town in the Suez Governorate, lying on the western shore of the Red Sea's Gulf of Suez. It is situated south of Suez and approximately east of Cairo. History Recent archaeological excavations have s ...

and 12 wind farms (600 turbine, 2 GW) in the

Gulf of Suez The Gulf of Suez (; formerly , ', "Sea of Calm") is a gulf at the northern end of the Red Sea, to the west of the Sinai Peninsula. Situated to the east of the Sinai Peninsula is the smaller Gulf of Aqaba. The gulf was formed within a relative ...

and west

Nile The Nile (also known as the Nile River or River Nile) is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa. It has historically been considered the List of river sy ...

areas of Egypt. In August 2015 Siemens announced it was to construct a new nacelle manufacturing plant at

Cuxhaven Cuxhaven (; ) is a town and seat of the Cuxhaven district, in Lower Saxony, Germany. The town includes the northernmost point of Lower Saxony. It is situated on the shore of the North Sea at the mouth of the Elbe River. Cuxhaven has a footprint o ...

, Germany, an investment of £200 million. The plant was expected to become operational mid 2017, and employ 1000 people. A€100 million blade plant to be built in the Tanger Automotive City (near

Tanger-Med Tanger Med (in Arabic: طنجة المتوسط ) is a Moroccan industrial port complex, located 45 km northeast of Tangier and opposite Tarifa, Spain (15 km north) on the Strait of Gibraltar, with handling capacities of 9 million conta ...

port) in

Morocco Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to Algeria–Morocc ...

was announced in early 2016. 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.

Merger

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). The merger became effective on 3 April 2017.

Post-merger

In 2018, Siemens Gamesa won the wind turbine supply contract for the largest offshore wind farm in the world. 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. In the company's history, it is the largest project, ahead of Hornsea One (1,218 MW), also developed by Ørsted. In 2018, Taiwanese manufacturer Swancor began supplying wind turbine resin to Siemens Gamesa. In 2019, Siemens Gamesa agreed to purchase

Senvion Senvion S.A. (called REpower Systems SE until 2014) was a German wind turbine manufacturer founded in 2001 in Germany, majority owned by a private equity firm. Senvion as REpower Systems, as it was initially called, was established in 2001 th ...

's European service fleet for €200 million ($222 million). On 18 May 2021, the

CNMV The National Securities Market Commission (CNMV) () is the Spanish government agency responsible for the financial regulation of the securities markets in Spain. It is an independent agency that falls under the Ministry of Economy (Spain), Minis ...

suspended Siemens Gamesa shares from trading due to informations about a possible future delisting. The suspension was lifted a day later. 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.

Products

Onshore turbines

Offshore turbines

Operations

Siemens Wind has R&D, and production facilities in

Brande Brande is a railway town with a population of 7,394 (1 January 2025)Denmark Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...

. 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). 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). As of 2018 the new offshore nacelle plant has been opened at Cuxhaven (Germany). Another offshore nacelle plant opened in Taiwan in 2021. Siemens acquired the first of two

Roll-on/roll-off Roll-on/roll-off (RORO or ro-ro) ships are cargo ships designed to carry wheeled cargo, such as cars, motorcycles, trucks, semi-trailer trucks, buses, Trailer (vehicle), trailers, and railroad cars, that are driven on and off the ship on their ...

turbine transport ships in 2016, converted from a

container ship A container ship (also called boxship or spelled containership) is a cargo ship that carries all of its load in truck-size intermodal containers, in a technique called containerization. Container ships are a common means of commercial intermodal ...

, to reduce logistics costs. A

telescopic A telescope is an instrument designed for the observation of remote objects. Telescope(s) also may refer to: Music * The Telescopes, a British psychedelic band ** The Telescopes (album) * ''Telescope'' (album), by Circle, 2007 * ''The Telescope' ...

roof also allows

Lift-on/lift-off Lift-on/lift-off (LoLo, sometimes LOLO, LO/LO or Lo/Lo) ships are cargo ships with on-board crane (machine), cranes to load and unload cargo. Ships with cranes or other cargo handling equipment on-board are also termed ''geared'' vessels. As ...

with cranes.

Recognition

Siemens Gamesa is listed on the Dow Jones Sustainability Index, the

FTSE4Good Index The FTSE4Good Index Series is a series of ethical investment stock market indices launched in 2001 by the FTSE Group which reports on the performance of companies which demonstrate "strong Environmental, Social and Governance practices". A numbe ...

which is concerned with

corporate social responsibility Corporate social responsibility (CSR) or corporate social impact is a form of international private business industry self-regulation, self-regulation which aims to contribute to societal goals of a philanthropy, philanthropic, activist, or chari ...

on the KLD Global Climate 100 Index, and on the Global 100 Index of the 100 most sustainable companies in the world.

References

Notes

{{DEFAULTSORT:Siemens Gamesa 2016 mergers and acquisitions Basque companies Companies listed on the Madrid Stock Exchange Engineering companies of Spain Manufacturing companies established in 1976 Manufacturing companies of Spain Renewable energy technology companies Siemens Spanish brands Spanish companies established in 1976 Wind power in Spain Wind turbine manufacturers Biscay Spanish subsidiaries of foreign companies