Publications & Press


  • Scholz-Reiter, B.; Heger, J.; Lütjen, M.; Schweizer (Virnich), A.: A MILP for Installation Scheduling of Offshore Wind Farms. In: International Journal of Mathematical Models and Methods in Applied Sciences, 5(2011)1, pp. 371-378
  • Scholz-Reiter, B.; Karimi, H. R.; Lütjen, M.; Heger, J.; Schweizer, A.: Towards a Heuristic for Scheduling Offshore Installation Processes. In: Maneesh, S.; Rao, R.B.K.N.; Liyanage, J. P. (eds.): Proceedings of the 24th International Congress on Condition Monitoringand and Diagnostics Engineering Management. Advances in Industrial Integrated Asset Management, COMADEM International, Birmingham, U.K, 2011, pp. 999-1008
  • Nollmann, S.: „High & Heavy“: neue Dimensionen fordern Logistiker. VDI/ VDE Fachmagazin „Mensch & Technik“, Ausgabe III/ 2011. S. 24-25.
  • Schweizer, A.; Beinke, T.; Scholz-Reiter, B.: Das Logistiknetzwerk der Offshore-Windenergie – Bewältigung dynamischer Einflüsse. Industrie Management, Ausgabe 6/2011, S. 13-16.
  • Lütjen, M.; Karimi, H.-R.: Approach of a Port Inventory Control System for the Offshore Installation of Wind Turbines. In: Chung, J. S.; Langen, I.; Hong, S. Y.; Prinsenberg, S. J. (eds.): The Proceedings of The Twenty-second (2012) International Offshore and Polar Engineering Conference (ISOPE). Renewable Energy (Offshore Wind and Ocean), International Society of Offshore and Polar Engineers (ISOPE), Cupertino, California, USA, 2012, pp. 502-508
  • Beinke, T.; Schweizer, A.: Standardisierung von Informationsflüssen und logistischen Prozessen in der Offshore-Windenergie-Logistik. In: Pradel, U.-H.; Süssenguth, W.; Piontek, J.; Schwolgin, A. (Hrsg.): Praxishandbuch Logistik – Erfolgreiche Logistik in Industrie, Handel und Dienstleistungsunternehmen. Dt. Wirtschaftsdienst, Köln, 6(2012), S. Kapitelnummer 3.4.6
  • Beinke, T.; Quandt, M.; Schweizer, A.: Offshore-Windenergielogistik: Supply Chain Event Management und Tracking and Tracing Technologien für ein stabiles Logistiknetzwerk. In: Müller, E.; Bullinger, A. (Hrsg.): Intelligent vernetzte Arbeits- und Fabriksysteme. Wissenschaftliche Schriftenreihe des Institutes für Betriebswissenschaften und Fabriksysteme, Chemnitz, 2012, S. 479-486
  • Beinke, T.; Beinker, D.: Lean Management in der Kleinserienfertigung – Effizienzsteigerung bei der Produktion von Windkrafttürmen. In: ZWF – Zeitschrift für wirtschaftlichen Fabrikbetrieb, 7/2012, S. 666-670
  • Beinke, T.; Oelker, S.: Zusammen geht es leichter. In: Logistik heute, 11/2012, S. 64-65
  • Beinke, T.; Görges, M.: Giganten in Bewegung – Betriebsmittel zum Handling von Offshore-Komponenten. In: Hebezeuge Fördermittel, 9/2012, S. 454-456
  • Beinke, T.; Quandt, M.; Schweizer, A.: Developing standardized logistics processes for the offshore wind energy industry. In: Proceedings DEWEK 2012. 10 – Offshore Wind Turbine, DEWI GmbH, Bremen, 2012, 4 pages
  • Oelker, S.; Beinke, T.: Von der Beschaffung bis zur Instandhaltung. In: Offshore-Report – Transport und Logistik 2013, 1/2013, S. 11-15
  • Beinke, T.; Quandt, M.; Schweizer, A.: Planungssicherheit von der Produktion bis zur Montage. In: Offshore-Report – Transport und Logistik 2013, 1/2013, S. 26-27



  • Workshop der Stiftung Offshore Windenergie „Identifikation des Forschungsbedarfs zur Montage und Demontagetechnik großer Offshore-Strukturen für Offshore-Windparks -Logistik“: Entwicklung übergreifender Optimierungsstrategien für das Logistiknetzwerk der Offshore-Windenergie; 29. Mai 2012; Hannover.
  • ISOPE-2012 – 22nd International Ocean and Polar Engineering Conference: Approach of a Port Inventory Control System for the Offshore Installation of Wind Turbines. 17. bis 22. Juni 2012; Rhodes.
  • Hanse-Wissenschaftskolleg Delmenhorst “Sustainable Material Life Cycles – Is Wind Energy Really Sustainable?”: Synchronisation of Material and Information Flows in the Logistics Network of Offshore Wind Energy; 19. und 20. Juni 2012.
  • LOGMS – The 2012 Internal Conference on Logistics and Maritime Systems, 22.-24.08.2012, Bremen; Quandt, M.; Schweizer, A.; Beinke, T.: Scholz-Reiter B.: Improving planning and control of Logistics processes within the Offshore-wind industry by applying Simulation aspects.
  • DEWEK 2012 – German Wind Energy Conference, 07.11. – 08.11.2012, Bremen; Beinke, T.; Quandt, M.; Schweizer, A.: Developing standardized logistics processes for the offshore wind energy industry.
  • VPP 2012 – Fachtagung Vernetzt Planen und Produzieren, 08.11. – 09.11.2012, Chemnitz; Beinke, T.; Quandt, M.; Schweizer, A.: Offshore-Windenergielogistik: Supply Chain Event Management und Tracking and Tracing Technologien für ein stabiles Logistiknetzwerk.
  • Konferenz: Kosten der Onshore- und Offshore-Windenergie senken – Herausforderungen und Chancen für die Branche in Deutschland und Frankreich, 15.11.2012, Paris; Beinke, T.; Bodenstab, M.; Real-time monitoring of transport and cargo handling of components for the offshore installation of wind turbines.
  • Ait Alla, A.; Quandt, M.; Lütjen, M.: Aggregate Installation Planning of Offshore Wind Farms. In: Zaharin, A.; Shang,Y.; Serrano, E, J.; Alharbi, S.; Prepelita, V. (eds.): Recent Advances in Eletrical & Computer Engineering. WSEAS Press, 2013, pp. 130-135
  • Beinke, T.; Quandt, M.: Planung und Steuerung der Logistikprozesse der Offshoe-Windkraftindustrie. In: Tagungsband. 18. Magdeburger Logistiktage – Sichere und nachhaltige Logistik, N.N, Magdeburg, 2013, S. 73-78


Press feedback:

  • BINE Informationsdienst: Sichere Logistik durch Simulation – Optimierte Prozesskette von Offshore-Windenergieanlagen; 10. April 2012.
  • MM Logistik: Logistikprozesse unter der Lupe; 11. April 2012
  • Deutsche Verkehrs-Zeitung: Ein Megaprojekt wird transportiert – Forscher entwickeln Planungsmodell für die Offshore-Logistikkette; Nummer 46, 17.04.2012. Hamburg.
  • Weser Kurier: Bremer Projekt erforscht Offshore-Logistik; 30. April 2012
  • Technologiepark Bremen: Künftig mehr Zuverlässigkeit in der Lieferkette beim Bau von Offshore-Windparks; 08. Mai 2012.


Press release from 05/04/2012                                                       

On the way to series production of offshore wind energy farms / Scientists and industrial  research partners from Bremen optimize logistic chain from manufacturing to installation at sea / New planning instruments

Future increased reliability within the supply chain of the construction of offshore wind parks

Bremen/Hamburg. An increased planning certainty and reliability during the construction of offshore wind energy farms has a large value for component manufacturers, offshore installers and investors. A key element of the installation of offshore wind energy farms is made up by logistic processes due to the complexity of the supply chain and its imponderability. A well-grounded simulation of processes shall maintain a higher certainty in the future. On this matter, the Bremer Institute for production and logistics (BIBA), BLG LOGISTICS GROUP AG & Co. KG (Bremen) and HOCHTIEF Solutions AG (Hamburg) conduct a research project.

The cooperative project “Real-time monitoring of the transport and handling of components for commissioning offshore-wind turbines” (Mon²Sea) has an investment volume of about 2 million Euro and is supported by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) with 860.000 Euro. Within the project-relating research work that started in 2010, the research partners consider the whole process chain starting with the supplier leading to the installation of the components at sea. This happens with regards to knowledge adopted from the construction site logistics and the machine construction.

According to the project manager Dipl.-Wi.-Ing. M.Sc. Thies Beinke from the department for intelligent production and logistic systems (BIBA), “the project serves to develop instruments to establish a better controllability for the complex and sensitive supply chain of the installation of offshore wind energy farms in the future”. The scientist adds that “complex supply chains have to be reorganized to increase the reliability of processes. There is a need for holistic, dynamic logistic concepts and controlling means such as new tools for planning”. Basing on this, processes can be standardized as groundwork for the series construction of offshore wind energy plants.

The lack of only one component can cause impacts to the whole network

The nacelle of a wind energy plant consists of a multitude of parts from different manufacturers. Including the rotor blades, weighing 300 tons in total, it weighs more than an empty Airbus A380, weighing 275 tons. Tripod bases without other components weigh about 600 tons to 900 tons and reach a height of up to 60 meters. Rotor blades are expected to have a maximum length of 90 meters in the near future.

These components have to be manufactured and brought to the shipping port by heavy load transports via road, rail or seaway in time. From thereon, they are brought to the construction site at sea by special construction vessels in the appropriate order with the corresponding parts and experts for the erection of the respective component. The lack of only one component can cause problems for the whole logistics network. Caused by the size and the weight of the component as well as by long distances from the shipping port to the construction site, a quick alternate delivery is often complicated and expensive. There are several other factors that can interrupt this complex process. Occurring problems in the production and logistic processes are often noticed dockside. The port has a central role in the whole installation process because every component to be worked at sea has to pass it.

About 20% of the costs for constructing an offshore wind energy farm are caused by logistics

Due to large investment costs of offshore farms, planning and realization underlie various restrictions. Clients as well as banks demand a higher reliability and security of operation during construction. Dipl.-Ing. Christian Sagert from HOCHTIEF Solutions: „Therefore, planning of logistic processes became focus of project developers and installers. It developed to a key aspect of installation. By simulating the whole supply chain, weaknesses such as supply stoppages or weather influences on transport or installation of components can be identified and counterattacked if necessary. Unfortunately, wholistic simulation and controlling systems applicable for such complex projects are not available today.

“Logistic Costs are an enormous cost driver within the offshore wind energy industry”, Jessica Jobmann M.A. from BLG LOGISTICS adds. “About one fifth of the total costs of an offshore wind energy plant have to be allotted to logistic processes. This amount has to be reduced while taking all parts of the supply chain into consideration.” A base for this is the cooperation of project partners and a process transparency as high as possible.

Mon²Sea: Process Optimization using an IT-based platform, real time monitoring and a planning model

About a year was necessary to map the processes of the logistics network. It included component manufacturers for bases, towers and rotor blades. To complete the logistics, the new system is built up on data from logistic service providers as well as offshore installers currently.

The optimization of the supply chain shall be enabled by an integrated concept of an IT-based research platform, a stochastic planning model and an infrastructure that is based on information and communication technologies. The concept also involves the controlling of transport means that were manufactured for the transport of the respective large components. The information and communication based infrastructure is established regarding the special circumstances of transport means.

The IT-based research platform is programmed to establish a controlling and real time monitoring of components, plant parts and transport means. It lies an aspect on the holistic optimization of processes. It serves as a simulation mean for processes and to conduct different scenario analysis, also including scenarios that were not tested under real conditions.

The last step of the integrated concept is the development of a stochastic planning model for the weather dependent montage and installation planning at sea. It uses the data that was retrieved by the real time monitoring and enables support of the ship capacity planning, stock optimization or the calculation of emergency responses in the case of rush weather changes or schedule problems in the supply chain.

                            (Sabine Nollmann)

Further information and contacts:

Dipl.-Wi.-Ing. M.Sc. Thies Beinke (BIBA)
Phone: 0421 218-500 86, E-Mail:

Michael Görges Dipl.-Wi.-Ing. (BLG LOGISTICS)
Phone: 0421 398-3458, E-Mail:

Stefan Hannen (HOCHTIEF Solutions)
Phone: 0201 824-2960, E-Mail:


Photos connected to the press release (“Future increased reliability within the supply chain of the construction of offshore wind parks“) (04/05/2012) can be found here.

The Photos may be used for publishing only with a reference to the author.

Project Partners:

BLG Logistics