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Press Release

Herausgeber: ENERTRAG Betrieb GmbH

ENERTRAG Operation takes over technical management of the Krummendeich wind energy research park

Operations manager Christian Nagel<br />
© ENERTRAG Betrieb GmbH
Operations manager Christian Nagel
© ENERTRAG Betrieb GmbH
Krummendeich (renewablepress) - How can wind be used most effectively to generate electricity? What do the turbines need to look like and can wind turbines actually be quieter? The Krummendeich Wind Energy Research Park in the district of Stade will be investigating these questions scientifically in future. The operator is the German Aerospace Center (DLR). The technical service provider ENERTRAG Operation won a public tender for the technical and commercial management and will be responsible for this for the next few years. Commercial management will be handled by partner GP JOULE Service.


WiValdi at the Krummendeich Research Park

The WiValdi research park (www.forschungspark-windenergie.de) is located at the Krummendeich site in the district of Stade in Germany, directly at the mouth of the river Elbe. Steady winds from the main wind direction west-southwest characterize the location of the research park. Two wind turbines were deliberately built one behind the other for research purposes. OPUS 1 and OPUS 2 are two identical Enercon E-115 EP3 wind turbines, each with an output of 4.26 MW, a height of 150 meters and a rotor diameter of 116 meters. Each turbine has around 1,300 sensors that provide detailed information, particularly about the rotor blades. These turbines are unique worldwide in their comprehensive measurement technology, which extends from the base to the tip of the blade. In addition to the permanently installed sensors, further sensors can be added to validate and compare data.

For research purposes, the spatial arrangement of the two wind turbines is a welcome field for collecting data, as it is important to install as many turbines as possible in the smallest possible space in order to achieve the expansion targets for wind energy in the future. The measurement of the direct wake behind the first turbine and the power measurements of the second turbine in conjunction with the metereological measurements are particularly interesting. This provides information on how efficient the turbines can be when they are installed as close together as possible.

Technical operations management monitors both the performance and the acoustics of the research facilities. In addition to some noise reduction measures on the rotor blade, which can be achieved via the design, profiles or edge modification (for example with serrated edges), it is primarily a matter of clever control.

Andre Reichert, Head of Operational Services at ENERTRAG Operation, explains: "The challenge is to operate the plants in such a way that the highest possible output can be achieved during and despite the research campaigns. This must be supported by skillful operational management. Optimum cooperation between researchers, monitoring, operations managers and our Powersystem operations management software is crucial here."


Research focus: Measurement of the turbulent wake

The configuration of the two wind turbines (one behind the other in the main wind direction), which is unfavorable from a commercial operator's point of view but interesting from a research perspective, allows for investigations and experiments in the wake. In order to record the properties of the turbulent wake in detail, a total of five meteorological measuring masts have been erected on the research park. A 150 meter high, IEC-compliant measuring mast is located in the main wind direction in front of OPUS 1. The sensors on this measuring mast accurately record the incoming wind field. As soon as the wind field hits OPUS 1, a complex, turbulent wake is created.

This wake is recorded by the measurement mast array, consisting of three measurement masts (100 m, 150 m and 100 m), which is positioned directly in front of OPUS 2 in the main wind direction. The array allows the turbulent wind field to be recorded over the entire rotor area of OPUS 2 before it hits OPUS 2. With this configuration, it is possible to investigate the effects of the wake and to validate methods for reducing or deflecting the wake to increase the effectiveness of the entire wind farm.


About ENERTRAG Operation

ENERTRAG Operation is a subsidiary of ENERTRAG and bundles the technical expertise in the operating phase of renewable energy projects under its umbrella. The company currently manages over 1,200 energy plants. Over 100 employees at six locations ensure safe and profitable plant operation.

betrieb.enertrag.com


About ENERTRAG

ENERTRAG is a leading company in the field of renewable energies in Germany and worldwide. With extensive expertise in the development, construction and operation of integrated wind and solar power plants, as well as a wide range of self-owned plants, the company generates over 2 terawatt hours of electricity annually from its own plants.

A dedicated team of more than 1,000 employees drives projects with a capacity of over 15 gigawatts in nine countries and pursues a holistic approach to integrated power plants, including wind, PV and electrolysis plants as well as grid infrastructure. The company's core objective is to efficiently generate, combine and deliver renewable energy to customers worldwide.

www.enertrag.com


About Deutsche Zentrum für Luft- und Raumfahrt (German Aerospace Center)

DLR is the aeronautics and space research center of the Federal Republic of Germany. We conduct research and development in the fields of aeronautics, space, energy, transport, security and digitalization. The German Aerospace Center at DLR is responsible for the planning and implementation of German space activities on behalf of the Federal Government. Two DLR project management agencies oversee funding programs and support the transfer of knowledge.

Climate, mobility and technology are changing globally. DLR uses the expertise of its 54 institutes and facilities to develop solutions to the resulting challenges. Our 10,000 employees have a common mission: we explore the Earth and space. We develop technologies for a sustainable future and contribute to strengthening Germany as a center of knowledge and business through technology transfer.

www.dlr.de

Download press photos:

https://www.iwrpressedienst.de/bild/enertrag-betrieb/8600b_Operations-manager_Chr_Nagel-1.jpg
Caption: Operations manager Christian Nagel
© ENERTRAG Betrieb GmbH

https://www.iwrpressedienst.de/bild/enertrag-betrieb/8600b_Team_ENERTRAG_Operation-1.jpg
Caption: Team ENERTRAG Operation during instruction at research park
© ENERTRAG Betrieb GmbH


Krummendeich, den 06 February 2024


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