List of wind turbine types from Enercon

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The list of wind turbines from Enercon includes all types of wind turbines from the Aurich manufacturer Enercon . In addition to technical data on the types, it also includes information on the locations of individual systems.

EP 1 class

E-44

E-44 in the Gütsch wind farm
  • The E-44 is certified for strong wind locations in wind class IEC Ia and is based on the E-48. The nacelle, controls and power electronics are identical to the E-48, but the generator has been modified and delivers 900 kW rated power.
  • The rotor diameter is 44 m.
  • The prototype was built in October 2006 near Izmir / Turkey .
  • By April 2019, 695 systems had been built.
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s

E-48

E-48 in Poland
  • The E-48 is the successor to the E-40, prototypes: June 2004 in India, August 2004 in Campen / East Friesland.
  • By April 2019, 2,066 systems had been built.
  • Gearless system
  • Nominal power 800 kW
  • Rotor diameter 48 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Wind class IEC IIA

E-53

E-53 in Fensdorf

The E-53, like the E-44, was developed from the E-48 for "low-wind locations". With the exception of a few components, the nacelle, control and power electronics are identical to the E-48, as is the rated output of 800 kW. The system has a separate IEC-S certification with slightly higher design loads than wind class IEC IIIA.

  • The prototype was erected in Eggelingen near Wittmund in summer 2006 .
  • By April 2019, 1,535 systems had been built.
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Rotor diameter 53 m

EP 2 class

E-70

Enercon E-70 in the Kandrich wind farm
  • Successor to the E-66, introduced in 2004
  • By April 2019, 3,135 systems (E-70 E4) had been installed.
  • Gearless system
  • Nominal power: 2000 kW / 2300 kW (E-70 E4)
  • Rotor diameter: 71 m
  • Hub height in meters: 57/64/75/85/98/114
  • Wind class: IA / IIA
  • Max. Sound power level: 104.5 dB (A)
  • Switch-on speed: 2 m / s
  • Downwind speed: 30-35 m / s
  • Special features: An E-70 is the highest wind turbine in Europe (as of Oct. 2011). It is at the wind farm Gries am Gries Pass , which connects the Canton of Valais with Italy, m to 2465 level. The highest wind turbine in Germany is also an Enercon E-70. It stands on the Hornisgrinde , the highest mountain in the northern Black Forest at an altitude of 1164 m and was erected in October 2015.

E-82

E-82 near Sommerhausen

There are different versions of the E-82 with different nominal power and wind class suitability. A total of around 5,300 systems of this series had been installed by December 2013.

  • Successor to the E-66; Inland version of the E-70 with 82 m rotor diameter, new rotor blade design and nacelle with aluminum cladding (on the predecessors it was made of GRP)
  • Prototypes: December 2005 in Simonswolde , Ihlow municipality , East Friesland; second system in early 2006, Steinkopfinsel , Magdeburg-Rothensee , market launch in mid-2006
  • By April 2019, 4,006 plants had been installed.
  • Gearless system
  • Nominal power: 2000 kW
  • Switch-on speed: 2.5 m / s
  • Downward wind speed: 28−34 m / s
  • Hub height: 78 m / 85 m / 98 m / 108 m / 138 m

E-82 E2

E-82 E2 in the Neuerkirch wind farm

The E-82 E2 is a variant of the E-82 that has a nominal output increased by 300 kW. The slight increase in performance is made possible by optimizing the air cooling; the cast components were optimized for semi-automated production in Enercon's own foundry. Tower systems, rotor blades and wind class suitability are identical to type E-82 2.0 MW . The prototype was erected in Fiebing in January 2009 , and the system is in series production.

According to Enercon, the primary energy requirement for the life cycle of an E-82 E2 on a 97-m concrete tower is 2880  MWh . Since an E-82 E2 can generate 101,990 MWh on typical inland locations, this results in a harvest factor of 35.4. Near the coast (117,500 MWh) the harvest factor is 40.8, directly on the coast (147,000 MWh) it is 51 Coastal locations 4.7 months. These figures have been confirmed by TÜV Rheinland.

By April 2019, 3,260 E-82 E2 turbines with 2.3 MW had been installed.

  • Nominal power: 2000 kW / 2300 kW
  • Rotor diameter: 82 m
  • Hub height in meters: 78/84/85/98/108/138
  • Wind class: IIA
  • Max. Sound power level: 103.5 dB (A) (2000 kW) / 104 dB (A) (2300 kW)

E-82 E4

Also in January 2010, Enercon announced a new E-82 with 3.0 MW output. This resulted in the E-82 E3 and E-82 E4, which are suitable for the IEC IIA and IEC IA wind classes. Both systems are intended for locations with significantly more wind than the E-82 E1 / E2 2.0 MW or E-82 E2 2.3 MW . Since the rotor area remains constant, the yield should be increased, especially in stronger winds (wind speed greater than 8.5 m / s). The increase in performance is made possible by modifying the generator, which is supplemented by water cooling in the stator in addition to air cooling. This version of the E-82 has essentially the same structure as the E-82 E2 2.3 MW, apart from the water cooling and some details, a reinforcement of the blades, tower and foundation. However, the E-82 E3 differs in terms of cast components and the arrangement of control cabinets from the previously installed water-cooled E-82 E1 with 3 MW, of which well over a hundred systems were installed. Another distinguishing feature is that in the old version E-82 E1 3 MW the heat exchangers for the water cooling were mounted on the roof of the machine house, whereas the heat exchangers of the E-82 E3 are inside the machine house. The component dimensions are largely retained compared to the E-82 2.0 MW and the E-70 . A new 85 m tubular steel tower is to be used at wind class IA locations. The existing 78 m to 138 m towers are to be used for IIA locations. The prototype was built in spring 2010; the system is in series production. For plants in strong wind locations, the main belts in the three rotor blades are made of carbon fiber reinforced plastic . 504 systems have been built so far (as of April 2019).

  • Nominal power: 2350 kW / 3000 kW
  • Rotor diameter: 82 m
  • Hub height in meters: 59/69/78/84
  • Wind class: IA / IIA
  • Max. Sound power level: 104 dB (A) (2350 kW) / 106 dB (A) (3000 kW)

E-92

E-92 in the Asseln wind farm

In April 2012, Enercon presented the newly developed wind turbine type E-92 / 2.3 MW at the Hanover Fair 2012. The system is designed for medium wind conditions (IEC IIA) and, according to Enercon, should increase the energy yield by up to 15% compared to the E-82 due to the larger rotor area. Technically, the wind turbine is based on the E-82, with which it is largely identical, although some minor changes had to be made, e.g. B. on the generator. However, the rotor blades differ in both length and shape from other Enercon machines, making the E-92 better suited to inland locations. The E-92 is offered on towers with a hub height between 69 and 138 meters. The prototype was built near Simonswolde in December 2012. After the performance curve measurement was completed in the first quarter of 2013, series production began. The first commercial project was a wind farm consisting of 17 E-92s, which were built in 2013 in Prados , Portugal .

By April 2019, 1209 plants had been built.

  • Nominal power: 2350 kW
  • Rotor diameter: 92 m
  • Hub height in meters: 69/78/84/85/98/104/108/138
  • Wind class: IIA
  • Max. Sound power level: 105 dB (A)

E-103 EP2

E-103 EP2 being set up in Pougny, France

In November 2015, Enercon announced another evolutionary stage in the 2 MW class with the E-103 EP2. The plant has a nominal output of 2.35 MW and a rotor diameter of 103 m. Two hub heights of 98 and 138 m are available, resulting in a total height of 150 and 190 m. The system is designed for weaker wind locations. Compared to the E-92, it should enable an additional yield of approx. 10%. The E-103 is designed and certified for a service life of 25 years. With an average wind speed of 7 m / s at a hub height of 138 m, Enercon states an annual standard energy capacity of approx. 8 GWh. Two prototypes of the E-103 were built in 2017 in Pougny (Nièvre) in Burgundy . Prototypes were also built in Caulières in Hauts-de-France . Series production started in 2017.

  • Nominal power: 2350 kW
  • Rotor diameter: 103 m
  • Hub height in meters: 78/85/98/108/138
  • Wind class: IIIA
  • Max. Sound power level: 105 dB (A)

EP 3 class

E-101

E-101 at Görmin

The E-101 was the third new announcement in 2010. It is a further development of the E-82 2.0 MW for moderate locations in wind class IIA or weaker. With a water-cooled stator, the system achieves a nominal output of 3 MW. The machine was presented to the public in April 2011 at the Hanover Fair. For the first time in a large Enercon machine, it is no longer possible to climb through the generator to get into the hub. If necessary, the rotor winding can also be liquid-cooled. The necessary heat exchangers (3 pieces) are then mounted on the outside of the hub parallel to the outer skin. The machine house of the E-101 has been greatly enlarged so that fitters can now switch over to the spinner outside the generator.

The length of the nacelle is approx. 15 m with a diameter of around 6.5 m. The liquid cooler for the stator was integrated into the outer skin at the rear end of the nacelle. In the meantime, the design of the liquid cooler has been revised, it is now, like the E-82 E3, in the nacelle and can only be seen through the air inlet and outlet openings. Additional cooling air is now sucked in again (as in the first generation of the E-66) through an opening in the rear of the nacelle. The number of gear motors that turn the nacelle into the wind has been doubled to twelve compared to the E-82. At around 250 t, the nacelle (including the rotor) is considerably heavier than the nacelle of the E-82. Another innovation concerns the so-called spinner module, a mounting plate in front of the hub inside the spinner. All electrical and electronic components of the rotor blade control, including the three large emergency power capacitor cabinets, are housed on it. These were previously installed on the rotor (generator).

The system is offered with a 99, 135 or 147 meter high precast concrete tower and can optionally be equipped with a rotor blade heating system that prevents yield losses due to ice formation in winter. The prototype was erected near Görmin ( Mecklenburg-Western Pomerania ) in mid-June 2011 . Two further prototypes, on which the measurements to obtain the unit certificates will take place until 2012, were made at Haren (Ems) . In August 2011, the first E-101 with a hub height of 135 meters was completed near Kleingladenbach ; it was also the first customer system to be delivered.

In 2019 the production of the E-101 was stopped.

By April 2019, 1,415 systems had been built. As of 2015, the demand for the E-101 is decreasing and is shifting towards the E-115, which is designed for the same locations but enables higher yields due to the longer blades.

  • Nominal power: 3050 kW
  • Rotor diameter: 101 meters
  • Hub height in meters: 99/124/135/149
  • Wind class: IIA
  • Max. Sound power level: 105.5 dB (A)

E-115

E-115 gondola in the Eilerberg wind farm

In September 2012, Enercon announced the E-115 as a new low-wind turbine. With a rotor diameter of 115 meters, a nominal output of 2.5 MW and tower heights between 92 and 149 meters, the system should be designed primarily for inland locations with an average wind speed of less than 7.5 m / s. It was presented to the public at HUSUM Wind 2012.

The prototype was erected in December 2013 in the Lengerich wind farm in Lower Saxony . Contrary to the original information, however, this is equipped with a 3 MW generator and the system type is now designed for medium wind conditions of class IEC 2a. At a location with an average annual wind speed of 6.5 m / s, the E-115/3 MW should deliver around 9.3 GWh of electrical energy per year, which is an additional yield of 14% compared to the E-101/3 MW, which is certified for the same wind conditions. corresponds. According to measured data, the additional yield of the prototype was even 18%. Series production started in mid-2014.

The first three commercially used turbines were erected on a 149 meter high tower in Brandenburg's Feldheim wind farm in August 2014 as part of repowering . The next projects followed in Garrel (1 plant), Brockhausen (3 plants) and Weiskirchen (4 plants).

The E-115 is based on the E-101, with which it shares some components. In contrast to this, however, it has a new generator concept, and the rotor blades have also been completely redeveloped. The E-115 has a split rotor blade made of fiberglass-reinforced plastic, which, according to Enercon, should make the transport of the components much easier. While the outer blade parts are conventionally manufactured using the manual vacuum infusion process, Enercon uses a machine winding technology for the inner blade segments, which is intended to reduce production costs. With a total height of 207 meters (with a 149 m tower), the Enercon E-115 is also two meters higher than the Laasow wind turbine , which was the tallest wind turbine in the world when it was built.

In November 2015, Enercon announced an increase in output from 3.0 to 3.2 MW. Like the 3 MW variant, the higher-performance version is designed for an operating period of 25 years.

  • Nominal power: 3000 kW (E-115) / 3200 kW (E-115 E2)
  • Rotor diameter: 115.7 meters
  • Hub height in meters: 92/122/135/149
  • Wind class: IIA
  • Max. Sound power level: 105 dB (A) (3000 kW) / 105.5 dB (A) (3200 kW)
  • By March 2019, 1,016 plants had been built.

E-115 EP3

The E-115 EP3 has the same rotor diameter as the older E-115 and is available with identical hub heights. This means that locations for the E-115 can be rescheduled for the newer platform. With a nominal output of less than three megawatts, the E-115 EP3 has advantages for the operator in the event of negative electricity prices ( Section 51 EEG ).

In August 2020, Enercon erected the prototype of the E-115 EP3 E3 on a tubular steel tower with a hub height of 92 meters in the Belgian municipality of Leuze-en-Hainaut .

  • Nominal power: 2990 kW / 4200 kW
  • Rotor diameter: 115.7 meters
  • Hub height in meters: 67/87/92/122/135/149
  • Wind class: IA (2990 kW) / IIA (4200 kW)

E-126 EP3

The machine house of the EP3 platform is no longer egg-shaped and only 3.90 meters high, 4.99 meters wide and 14.01 meters long. In contrast to other Enercon systems with blades of this length, the 61-meter-long rotor blades are made in one piece and are made of GRP . Carbon fiber reinforced plastic is not used. The transition from two-part to one-part rotor blades is justified with advances in transport logistics (e.g. the use of self-propelled vehicles ). The system type is designed for a service life of 25 years. An EP3 test vehicle based on the E-115 was installed in the Lelystad test field in April 2018 . The prototype was commissioned in Kirch Mulsow in August 2018 . Series production should then start at the end of the year. Enercon states that the annual standard energy capacity is more than 14.5 GWh at an average wind speed of 8.0 m / s at a hub height of 135 m. The systems will be built on various tower concepts with hub heights between 86 and 135 meters.

  • 1st prototype: August 2018, Kirch Mulsow 2nd prototype: December 2018 Rölvede (North Rhine-Westphalia)
  • Nominal output in kilowatts: 3000/3500/4000
  • Rotor diameter: 127 m
  • Hub height in meters: 86/116/135
  • Wind class: IIA
  • Speed: 4.4-12.4 / min
  • Downwind speed: 24–30 m / s

E-138 EP3

The E-138 EP3 shares a series with the jointly presented E-126 EP3 and has technically similar specifications. Like this, the E-138 EP3 has one-piece rotor blades in GRP construction and a direct-drive generator with aluminum coils, and the nacelle is no longer egg-shaped. The output is also 3.5 MW, the rotor diameter has been increased to 138 m. The generator has the same diameter as the E-126 EP3, but increases the voltage level of the electrical system from 400 to 630 volts. The active rectifiers and new inverters should achieve better network properties and improved efficiency. The system is designed for low-wind locations and an operating period of 25 years. The rotor blade with a length of 66.8 m was tested in a test stand of the Fraunhofer Institute for Wind Energy Systems in Bremerhaven in accordance with IEC 61400-23 . The hub height is between 81 and 160 m, the annual standard energy capacity is more than 13.2 GWh at 131 m hub height and 7 m / s.

The prototype of the series was erected in the Wieringermeer wind test field in the Netherlands and began test operations in February 2019. Series production is scheduled to start at the end of 2019. In September 2018, Enercon announced a version with a nominal output of 4.2 MW under the name E-138 EP3 E2. The prototype of the E2 variant was built in Janneby in Schleswig-Holstein in early 2020 . 201 units of this plant are planned for the Swedish wind farm Markbygden .

  • Prototypes: E1: Wieringermeer wind test field (Netherlands), E2: Janneby (Schleswig-Holstein), Schwennenz (Mecklenburg-Western Pomerania)
  • Nominal power: 3500 kW (E-138 EP3) / 4200 kW (E-138 EP3 E2)
  • Rotor diameter: 138.6 meters
  • Hub height in meters: 81/111/131/160
  • Wind class: IIIA
  • Speed: 4.4-10.8 / min
  • Downwind speed: 22–28 m / s

EP 5 class

In March 2019, Enercon announced a new system platform developed in cooperation with the name EP5. The platform is based on the Lagerwey L136 and follows a similarly compact and cost-optimized machine construction as the EP 3 class. The main technical difference is the use of permanent magnets in the generator. The operating voltage is 690 volts. Systems of the EP 5 platform have a rated service life of 20 years.

E-136 EP5

The E-136 EP5 corresponds to the Lagerwey L136 with a little more rated power under Enercon's E-series designation. The first system of this type was built in 2017 in Eemshaven , the Netherlands .

  • Nominal power: 4650 kW (previously 4500 kW)
  • Rotor diameter: 136 meters
  • Hub height in meters: 109/120/132 (modular steel tower)
  • Wind class: IA

E-147 EP5

In March 2019, Enercon announced the E-147 EP5 as one of the first turbine types in the 5 megawatt segment. It is designed for locations with medium wind speeds. The first E-147 EP5 including a prototype were installed at the end of 2019 on behalf of Energiequelle in the Paltusmäki wind farm in the Finnish municipality of Pyhäjoki . The prototype for the E2 variant is planned for the 2nd quarter of 2020 at a location in Jepua on the west coast of Finland.

  • Prototype: 2019, Pyhäjoki
  • Nominal power: 4300 kW (E1), 5000 kW (E2)
  • Rotor diameter: 147 meters
  • Hub height in meters: 126/132/143/155 (modular steel tower)
  • Wind class: IIA
  • Speed: 3.9-10.4 / min
  • Cut-out wind speed: 25 m / s
  • Annual energy yield: 17.2 GWh at 7.5 m / s and 4300 kW

E-160 EP5

This type of system was announced together with the E-147 EP5. Unlike the E-147 EP5, the E-160 EP5 has a nominal output of 4.6 MW. It is designed for locations with weaker wind conditions. The first prototype was built in 2020 in the Dutch test field Wieringermeer . The second prototype with a hub height of 166 meters is planned for the 2nd quarter of 2020 in the Grevenbroich wind test field . On behalf of the Chilean energy supply company Colbún , the Horizonte wind farm with 132 units of the E-160 EP5 with a total output of 607 megawatts is being planned in the Atacama Desert . In July 2020, Enercon announced a higher-performance version with the name E-160 EP5 E2 . It has a nominal output of 5.5 MW. Enercon plans to build the prototype of the E-160 EP5 E2 at the end of 2020.

  • Prototype: 2020, Wieringermeer (Netherlands)
  • Nominal power: E1: 4600 kW (formerly 4000 kW) / E2: 5500 kW
  • Rotor diameter: 160 meters
  • Hub height in meters: 120/166 (modular steel tower)
  • Wind class: IIIA
  • Annual energy yield: 14.8 GWh at 6.5 m / s and 4000 kW

Earlier plants

E-10

Enercon E-10 at Neumayer Station III
  • Prototype: 11/2007, Aurich
  • Construction time: 2007–?
  • Number of plants built: 3
  • Nominal power: 30 kW
  • Rotor diameter: 10 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

A facility of this type was built in the Antarctic during the construction of Neumayer Station III . Another system was built in 2008 for measurements in the wind test field near Simonswolde , in the immediate vicinity of the A 31 near Emden . The E-10 and E-20 have now been dismantled.

E-12

  • Prototype:?
  • Construction time: 1997-2000
  • Number of systems built: 5
  • Nominal power: 30 kW
  • Rotor diameter: 12 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

The Enercon E-12 was developed to test generators with permanent magnet excitation. With the E-12, as with other manufacturers today, the advantages of weight savings in the generator, machine carrier, tower and foundation were offset by disadvantages in controllability, efficiency, manufacture and maintenance. Of the only five plants built, one is in Lengenfeld , Saxony , and another in Barßel, Lower Saxony . The system in Mindelheim , Bavaria , has now been dismantled.

E-15 / E-16

E-16 to the north
  • Prototype: 1984, Aurich ( Aloys Wobben's private property )
  • Construction time: 1985–1989
  • Number of plants built: 46
  • Nominal power: 55 kW
  • Hub height: 18 m, 23 m / 23 m, 29 m
  • Rotor diameter: 15/16 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gear system with asynchronous generator

The Enercon E-16 was the very first wind turbine developed by Enercon. On May 27, 2015, the prototype system in Aurich was dismantled and brought to the nearby energy, education and experience center as an exhibit .

E-17 / E-18

E-17 at the company's headquarters in Aurich
E-18 in Ibbenbüren
  • Prototype: E-17: 1989, Aurich (after the service life had expired, this was dismantled in May 2019.)
  • Construction time: 1989–1994
  • Number of plants built: 158
  • Nominal power: 80 kW
  • Rotor diameter: 17/18 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gear system with synchronous generator and full converter

The Enercon E-17 / E-18 was widespread in the early 1990s as a yard installation, particularly in Lower Saxony and North Rhine-Westphalia.

E-20

  • Prototype: 09/2006, Aurich-Walle
  • Construction time: 2006–?
  • Number of systems built:?
  • Nominal power: 100 kW
  • Rotor diameter: 20 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

The Enercon E-20 was developed and designed for operation in island networks, especially in hard-to-reach locations with strong winds. Therefore, the uppermost section of the tubular steel tower can be pushed into the second uppermost section for transport in the overseas container and thus be shipped in a space-saving manner. The system is currently not included in the product range. Another E-20 was in Simonswolde on the A31 near Emden.

E-30

E-30 in the Asseln wind farm
  • Prototype: 1994, India
  • Construction period: 1994-2005
  • Number of plants built: 576
  • Nominal power: 230 kW (E-30 / 2.30), 300 kW (E-30 / 3.30)
  • Rotor diameter: 30 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

In 2005 the system was converted to the E-33 model with a new rotor blade profile

E-32 / E-33

E-32 in Dornum
  • Prototype:?
  • Construction period: 1988–1993
  • Number of systems built:
  • Nominal power: 300 kW at 11.5 m / s wind speed
  • Rotor diameter: 32/33 m
  • Cut-in wind speed: 3 m / s
  • Cut-off wind speed: 25 m / s
  • Survival wind speed: 68 m / s
  • Gear system with synchronous generator and full converter

The Enercon E-32 / E-33 was one of the most powerful wind turbines available on the market when it was launched in the late 1980s. The Pilsum wind farm was equipped with them and, from 1989, was Germany's most powerful wind farm. Enercon's first foreign project, the Roggenplaat wind farm in the Netherlands in the immediate vicinity of the Oosterscheldekering , was also equipped with such systems in 1992 (ten Enercon E-33s). These were replaced by four Enercon E-82 E2s in 2011.

E-33

Enercon E-33 in Aurich-Sandhorst
  • Prototype: 2004, Aurich-Sandhorst
  • Construction period: 2004–2012
  • Number of plants built: 84
  • Nominal power: 330 kW
  • Rotor diameter: 33 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

According to the Enercon website, the sale of the Enercon E-33 was discontinued on December 21, 2012. According to the sales department, the demand was too low.

E-40

E-40 nacelle design until 2001 (Freiensteinau)
E-40 in gondola design from 2001 (Mainz-Ebersheim)
  • Prototype: 1993, Krummhörn (as E-36 with 400 kW rated power)
  • Construction time:
    • 1993-2002 (E-40 / 5.40)
    • 2000-2007 (E-40 / 6.44)
  • Number of systems built:
    • 1.887 (E-40 / 5.40)
    • 3,992 (E-40 / 6.44)
  • Rated capacity:
    • 500 kW (E-40 / 5.40)
    • 600 kW (E-40 / 6.44)
  • Rotor diameter:
    • 40 m (E-40 / 5.40)
    • 44 m (E-40 / 6.44)
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

With the E-40 / 5.40, Enercon switched its production completely from gear systems to gearless wind energy systems. Older systems have a gondola with a "collar" instead of the typical Enercon egg shape (see photo). These facilities include a 84-pole synchronous generator and a vollumrichtenden IGBT - inverter . By specifying a controllable capacitive to inductive reactive power , the system is able to adapt to the prevailing network parameters such as network voltage and frequency. The rotor diameter is 40.3 m, resulting in a swept rotor area of ​​1,275 m². The rotor blades are made of GRP and epoxy resin and are adjusted by means of three synchronized pitch motors for power control . The mass of a rotor blade is 850 kg.

The production was switched to the successor model E-48 in 2004/2005. Other versions from 2006 are the E-44 and E-53.

E-58

E-58 in Holdorf
  • Prototype:?
  • Construction time: 1999-2006
  • Number of plants built: 225
  • Nominal power: 1,000 kW
  • Rotor diameter: 58 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

The system type has not been produced since mid-2006, as the E-48 serves the same market segment more cost-effectively.

E-66

E-66 in leeches
  • Prototype: 1995, Aurich
  • Construction time: 1995-2005
  • Number of plants built: 2,486
  • Rated capacity:
    • 1,500 kW (E-66 / 15.66)
    • 1,800 kW (E-66 / 18.70, from 1999)
    • 2,000 kW (E-66 / 20.70, from 2002)
  • Rotor diameter:
    • 66 m (E-66 / 15.66)
    • 70 m (E-66 / 18.70)
    • 70 m (E-66 / 20.70)
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

The wind turbines E-66 and E-70 are identical except for the rotor blades and smaller details. Thanks to a new rotor blade design, the energy yield of the E-70 could be increased by 10-15% with almost the same rotor diameter (depending on the location). The inner / near-hub rotor blade area is also used to generate lift. A number of special systems were also built from the Enercon E-66, such as wind turbines with a viewing platform . In Weißandt-Gölzau , an Enercon E-66 was installed on a former industrial chimney.

E-112

E-112 in the port of Emden
  • Prototype: 2002, leeches
  • Construction period: 2002–2006
  • Number of systems built: 9
  • Rated capacity:
    • 4,500 kW (only the first two systems)
    • 6,000 kW
  • Rotor diameter:
    • 112 m (prototype only)
    • 114 m
  • Switch-on speed 2 m / s
  • Downwind speed 30–35 m / s
  • Gearless

The E-112 was initially the most powerful wind turbine in the world with a nominal output of 4.5 MW. Nine plants of this type were built. Except for the first prototype (112 m), the system produced in Magdeburg has a rotor diameter of 114 m. The rotor blades for the two prototypes in the Egeln-Nord wind farm and in the Jade wind farm were manufactured by Abeking & Rasmussen in Lemwerder . The series production of the E-112 rotor blades then took place from the end of 2002 in an Enercon rotor blade production facility in Magdeburg-Rothensee using the hand lamination process. From there, the rotor blades were delivered by barges across the Elbe or the Mittelland Canal . A rotor blade is around 52 m long and weighs around 22 t. It was the longest rotor blade made in one piece by Enercon. The even longer rotor blades developed in the following years for successor types were constructed in two parts for logistics reasons (as of the end of 2015).

In 2005, the E-112 was further developed by increasing the nominal output to 6 MW. The first example was put into operation in the DEWI OCC test field near Cuxhaven, which was once again the most powerful wind turbine in the world . The ninth and last E-112 was built in 2006 in the Druiberg wind farm . The further development of the E-112 eventually led to the E-126 as the successor model.

EP 8 class

E-126

Construction site of the prototype of the E-126 in Emden
Base of an E-126 system in Georgsfeld

history

At the Hanover Fair 2006, the E-126, the successor to the E-112, was announced for 2007. A revised generator, a larger rotor diameter, a larger hub height and the use of the new Enercon rotor blade profile were intended to further improve economic efficiency. As with the E-82, the cladding of the nacelle is made of aluminum. For the energy yield to be expected at the location of the prototype ( Rysumer Nacken wind farm near Emden , East Frisia), the manufacturer estimated around 20 GWh per year. The manufacture and sale of the E-112 were switched to the E-126. The hub height is 135 m on a tower made up of precast concrete rings and pre-tensioned with steel strands. The prototype was erected in East Friesland in autumn 2007. For the foundation with 64 piles with an average length of 25 m, around 1500 m³ of concrete and around 180 tons of reinforcing steel were used. The nominal output was given by Enercon as 6 MW.

Wind farm 11 × E-126 Estinnes (Belgium) on October 10, 2010, after completion
2 E-126 in Hamburg-Altenwerder , in the background a wind farm consisting of older systems

At the end of 2009, Enercon announced that through slight modifications (mainly to the air cooling of the generator) the output (partly also to the existing systems) can be increased to up to 7.6 MW. These E-126s have since been classified for wind class IA and IB and were the most powerful wind turbines in the world until early 2014, when the prototype of the Vestas V164-8.0 offshore turbine was erected.

The prototype of this 7.6 megawatt E-126 was installed on the Enercon company premises in Magdeburg-Rothensee .

In August 2013, the trade journal Windpower Monthly reported that Enercon was considering offshore use of the E-126. According to this, Enercon is negotiating to set up an offshore-capable prototype onshore in a test field in the port of Le Havre by 2015 . Enercon confirmed the negotiations about the location, but denied the intention to develop an offshore plant. Instead, they want to make it clear that one can generate just as much electricity with a system of the planned type on land as with an offshore system at sea. But stay on land.

The E-126 EP8 is no longer in production. The reason for this is unknown.

Technical specifications

Size comparison: Enercon E-126, Cologne Cathedral and semitrailer with 40 ' ISO container
  • Prototype: Autumn 2007, Emden ( Rysumer Nacken wind farm ), Lower Saxony
  • Drive train: gearless with electrically excited synchronous generator
  • Nominal output: 7.6 MW (first versions 6.0 MW)
  • 95 plants installed so far (as of autumn 2016)
  • Rotor diameter: 127 m
  • Tower diameter on the ground: 16.5 m
  • Hub height: 135 m on a precast concrete tower with a height of 131 m and 35 rings
  • Certification: wind class IEC IC (at 7.6 MW also suitable for wind classes IA and IB)
  • Special features: aluminum nacelle cladding, the world's most powerful wind turbine when it is launched, two-part rotor blades made of steel and GRP , the inner part of the rotor blade is made of sheet steel (length approx. 24 m), the outer part (length approx. 35 m) is made of GRP (infusion construction ) with the typical Enercon aluminum blade tip in winglet design, blade weight approx. 65 t, for comparison: a blade of the E-112 (made of GRP) weighed approx. 22 t
  • Foundation: diameter approx. 29 m, height approx. 4 m, concrete volume approx. 1400 m³, reinforcement steel in the foundation approx. 120 t
  • Mass of the individual parts: foundation approx. 3,500 t, tower approx. 2,800 t, nacelle approx. 128 t, generator approx. 220 t, rotor (including hub) approx. 364 t, total weight of the complete nacelle approx. 650 t
  • Total height: 198.5 m

Established plants

  • The first prototypes of the E-126 with a nominal output of 6 MW were erected in autumn 2007 in the Rysumer Nacken wind farm in Emden .
  • A little later, the second E-126 was set up on the DEWI OCC test field in Groden near Cuxhaven . This system was built on the existing tower of the E-112 (No. 8 see above). The nacelle and rotor of the E-112 were moved to a higher precast concrete tower in the immediate vicinity.
  • The third E-126 was built in February 2008 next to the first prototype on the Knock (Emden).
  • In the first half of 2008, the Walloon Minister for Housing, Transport and Territorial Development, André Antoine, broke ground for a wind farm with eleven E-126/6 MW turbines. The wind farm was built in Estinnes , approx. 30 km west of Charleroi (Belgium). The eleven wind turbines were erected by December 2009 on an area of ​​approx. 3 km × 3 km. Each of them delivers around 17 to 20 million kWh per year.
  • Two more plants were built in the spring of 2009 in Hamburg-Altenwerder . The components of the machine house were assembled in individual parts on the tower. First the gondola was lifted (first day), then the generator (second day) and later the hub with the inner blade parts. In the second system in Altenwerder, the rotor star was preassembled on the ground for the first time and pulled up to the nacelle in one piece (weight approx. 320 t) with the help of a CC 9800 crawler crane from Terex-Demag (max. Load capacity 364 t).
  • Another E-126 was built at the Schneebergerhof in Rhineland-Palatinate and should also generate around 18 GWh per year.
  • In addition to the two E-126s already present in the Georgsfeld wind farm, a third system (year-end 2010) was set up 3 km northwest of Aurich.
  • Fifteen E-126s are located in Mecklenburg-Western Pomerania in the Werder / Kessin wind farm north of Neubrandenburg. Construction work began in spring 2011. The wind farm has a nominal output of 140 MW. Mostly E-126 systems with 7.5 MW each are used. In addition to the wind power plants, a hydrogen storage facility and a block-type thermal power station were built, with the help of which the wind power feed-in is to be stabilized. A total of thirteen E-82s with 2.3 MW each and fifteen E-126s were installed in the Werder / Kessin wind farm.
  • At Neubukow , also in Mecklenburg-Western Pomerania, an E-126 was completed in May 2012.
  • Also in 2012, an E-126 was built in the Neuenfeld wind farm in Brandenburg.
  • In Medemblik 2012, an E-126 was built and put into operation. It is the first E-126 in the Netherlands and is called "de Ambtenaar".
  • In Diepenau in southern Lower Saxony on the border with North Rhine-Westphalia there is a wind farm consisting of two E-126s and one E-115. Construction of the first system began at the end of 2011, and commissioning took place a short time later. The other two systems were also built and commissioned in the course of 2014.
  • In the Netherlands, the construction of 38 E-126 turbines began in early 2012 as part of the Noordoostpolder wind farm . The completion took place in 2017.
  • Two plants with 7.5 MW were put into operation in Potzneusiedl (Austria) by the BEWAG subsidiary AWP in February 2012.
  • In 2013 one was in the wind farm Neuharlingersiel repowering performed by older Enercon systems through four were replaced E-126th

EP 4 class

In December 2014 Enercon announced the development and production of a new system platform with around 4 MW. According to this, three different series for strong wind, medium wind and light wind locations are to be developed on a common basis. The systems are designed for an operating period of 30 years, while conventional wind turbines are usually designed for 20 or 25 years. Enercon expects lower electricity generation costs from the extended operating time .

Compared to the earlier E-126 with 7.6 MW, the diameter of the generator has been reduced from around 12 m to around 9 m. The blade profile is similar to that of the E-115. The rotor blades are coated with a special surface for better dirt repellency, lower erosion wear and lower noise emissions. As with the E-115, they are divided into two segments for easier transport. For the same reason, the generator can be broken down into two 180 ° segments. In addition, the system is quieter than previous series (lower sound power level ).

The EP4 platform is no longer available for sale. The less expensive E-126 EP3 and E-138 EP3 E2 are offered in the same market segment (4MW).

E-126 EP4

E-126 EP4 on 135 m tower, Holdorf

The first model of the EP4 platform was the E-126 EP4 and was initially designed for medium wind speeds (IEC IIA). With a rotor diameter of 127 m, it has a nominal output of 4.2 MW and is available with hub heights of 99 m, 135 m and 159 m.

For the E-126 EP4, Enercon expects electricity production costs of 4 to 4.5 ct / kWh at good IEC II locations. With an average wind speed of 7.5 m / s, the system should generate around 15 GWh of electricity per year. The first prototype of the E-126 EP4 was erected in the wind test field in Lelystad in April 2016 . The second in September 2016 in the Südermarsch wind test field . Series production started in 2016.

E-141 EP4

E-141 EP4 with a hub height of 159 m, Scharmede

In November 2015, a low wind turbine based on the EP4 platform introduced in 2014 was announced. The prototype of the E-141 EP4 was the end of 2016 in Thuringia Bucha - Coppanz near the A4 situated on a 129-meter hybrid tower. After measuring the prototypes, Enercon announced certification to IEC IIA in 2017, so that the system is also suitable for medium-sized locations.

Like the E-126 EP4, the E-141 EP4 has a nominal output of 4.2 MW. The maximum sound level is given as 105.5 dB (A). The system is available at two different hub heights of 129 and 159 m and should produce around 13 GWh of electricity per year at an average wind speed of 6.5 m / s. With a 129 m tower, the annual electricity yield is around 16.4 GWh at 7.5 m / s annual average speed or at 19.2 million kWh at 8.5 m / s. Technically, the E-141 EP4 is largely identical to the E-126 EP4. Among other things, the nacelle, mechanical engineering, generator, electrical system and the inner rotor blade segment are identical.

In 2016, the E-141 EP4 was selected by the trade magazine Windpower Monthly as "Wind Power Plant of the Year" in the "Onshore 3MW-plus" category. Series production started in 2017.

Web links

Commons : Enercon wind turbines  - collection of images, videos and audio files

Individual evidence

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