Nordex

Nordex SE is a European company that designs, sells and manufactures wind turbines, founded in 1985 and headquartered in the German city of Hamburg with production in Germany, Brazil, India, Mexico, Poland and Spain. According to the company, it had installed wind turbines with a total capacity of around 50 GW in over 40 countries worldwide by the end of 2023.

History The company was founded in Give, Denmark in 1985. In 1995 Nordex was the first company to mass-produce a 1 MW wind turbine booster.

On October 1, 2001, the bankrupt company of Südwind Babcock-Borsig was fully implanted into Nordex, which then continued to produce Südwind turbines in the 1.5 MW class (ProTec MD 1,500 kW) from 2001 - originally from "pro + pro Energiesysteme" (a subsidiary of aerodyn Energiesysteme GmbH and Denker & Wulf) developed the S70 and later the S77 - under license..

In 2016, the wind turbine manufacture business unit of Spanish conglomerate Acciona, Acciona Windpower, merged with those of Nordex to form Nordex Group. Acciona S.A. has since been the main shareholder of the Nordex Group with about 47 % of outstanding shares.

Organisation The company's headquarters are in the German city of Rostock while management is in Hamburg. Nordex produces at sites in Germany, Brazil, India, Mexico and Poland and Spain. The main production facility is located at the headquarters in Rostock. Nordex has branches and subsidiaries in 19 countries.

Products As of 2013, the third generation of Nordex wind turbines included two platforms, rated at 2.4 and 3.3 MW.

In Europe, Africa and North America Nordex manufactures and sells the Gamma series, a product family comprising the N90/2500, the N100/2500 and the N117/2400. The N90/2500 is a turbine being developed for strong winds. The N100/2500 consists of two versions, Highspeed and Lowspeed, the first one for rather windy locations, the second for medium wind conditions. The N117/2400 was designed especially for low-wind regions (IEC 3). The hub height of the 2.4-2.5 MW windturbines reaches from 65 meters for the N90/2500 to 141 meters for the low wind version of the N117/2400.

Technical data 2.5MW Gamma class

ParameterNordex platform brochure Gamma-Generation N80 IEC1 N90 IEC1 N90 IEC2 N100 IEC 2 N100 IEC3 N117/2400 IEC3 Rated Power (kW) 2,500 2,500 2,500 2,500 2,500 2,400 Cut-in wind speed (m/s) 3 3 3 3 3 3 Cut-out wind speed (m/s) 25 25 25 25 25 20 Rotor diameter (m) 80 90 90 100 100 117 Swept area (m2) 5,026 6,362 6,362 7,823 7,823 10,751 m2 per MW 2,010 2,548 2,548 3,129 3,129 4,480 Revolutions per minute 10.8-18.9 10.3-18.1 9.6-16.8 9.6-14.8 9.6-14.8 7.5-13.2 Overspeed control Pitch Pitch Pitch Pitch Pitch Pitch Gearbox yes yes yes yes yes yes Generatordouble-fed asynchronous generator double-fed asynchronous generator double-fed asynchronous generator double-fed asynchronous generator double-fed asynchronous generator double-fed asynchronous generator Grid frequency 50/60 Hertz 50/60 Hertz 50/60 Hertz 50/60 Hertz 50/60 Hertz 50/60 Hertz Hub height (m) 60 65/70/80 80/100 75/80/100 80/100/140 91/120/141

Delta/Delta4000-Class

In 2013 Nordex launched the Delta-Class-Series, entering series production in January 2014 with prototypes installed in mid-2013. There will be two new types of turbines, the N100/3300 strong-wind turbine and the N117/3000, which is designed for medium-wind sites. Both turbines feature the rotorblades already used in the Gamma-Series, with the rotorblades of the N117 being slightly upgraded to withstand the higher wind speeds in IEC wind class 2a. Both turbines are equipped with a three-stage gearbox and a doubly fed asynchronous generator.

ParameterNordex platform brochure Gamma-Generation N117/3600 N131/3600 N131/3900 N133/4.8 N149/4.x N149/5.x N155/4.x N155/5.x N163/5.x N163/6.x N169/5.x N175/6.x Rated Power (kW) 3,600 3,600 3,900 4,800 4,000–4,500 MW (project specific up to 4,800) 5,000-5,x00 4,000-4,x00 5,000-5,x00 5,000-5,x00 6,000-6,x00 up to 5,500 6,000-6,x00 Cut-in wind speed (m/s) 3 Cut-out wind speed (m/s) 25 25 25 up to 28 20 (project specific up to 26) up to 26 25 25 up to 26 up to 26 24 20 Rotor diameter (m) 116.8 131 131 133.2 149.1 149.1 155 155 163 163 169 175 Tip speed (m/s) 77 81.6 86.2 N/A N/A N/A N/A N/A N/A N/A N/A N/A Swept area (m2) 10,715 13,478 13,478 13,935 17,460 17,460 18,870 18,870 20,867 20,867 22,432 24,053 m2 per MW 2,976 3,744 3,456 2903 ~4,300 ~3,400 ~4,700 ~3,700 ~4,100 ~3,400 ~4,000 ~4,000 Revolutions per minute 7.9–14.1 7.5–13.6 7.9–14.4 N/A N/A N/A N/A N/A N/A N/A N/A N/A Overspeed control Pitch Gearbox 3-stage gearbox (planetary-planetary-spur gear) 3-stage gearbox (planetary-planetary-spur gear) 3-stage gearbox (planetary-planetary-spur gear) high-speed gearbox Type 3-stage (planetary-planetary-spur gear) high-speed gearbox planetary-planetary-spur gear planetary-planetary-spur gear high-speed gearbox high-speed gearbox high-speed gearbox high-speed gearbox Generator double-fed asynchronous generator Grid frequency 50/60 Hertz Hub height (m) up to 134 up to 134 up to 134 project and site-specific up to 164 up to 164 up to 164 up to 164 up to 164 up to 164 111.5 m (initial offering) up to 179

Nordex

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