According to the General Administrative Regulation (German: AVV) for the marking of aviation obstacles, infrared light will be mandatory for many wind turbines as additional navigation lighting. The infrared light developed for this purpose by former REETEC, now ROBUR WIND, has been certified by the responsible authorities.

BNK conversion by ROBUR WIND also possible at any time during times of Corona

Due to comprehensively implemented safety precautions – beyond the COVID-19 occupational safety measures ordered by the Federal Ministry of Labour and Social Affairs and local authorities – ROBUR WIND is able to carry out orders for the retrofitting of aviation aid systems in a speedy manner even during these times.

The enactment of the new AVV now provides legal certainty. In order to secure the high demand for BNK-retrofit solutions until the deadline of 30.06.2021, ROBUR WIND is currently implementing the following measures, among others:

ROBUR WIND has already implemented interfaces to many existing BNK-systems in aviation aid system controls – those to new suppliers are currently being tested. The aim of the measures is to offer interfaces for all BNK-systems approved in Germany and thus ensure the operation of all plants after June 30, 2021 with regard to the new AVV-specifications. Customers have planning security: aviation aid systems can already be installed today and later configured for the connected BNK-system via the modular operating software respectively software update.

ROBUR WIND infrared lamp certified

After the successful certification by the Department of Traffic Engineering of the Waterways and Shipping Administration, the series production of the infrared (IR) lamp with various market-relevant options is currently being prepared:

“Even during the exceptional COVID 19 situation, we guarantee our customers a speedy BNK-conversion in accordance with the new AVV, so that operators of the approximately 17,500 wind turbines affected in Germany can meet the set deadline – provided, of course, that the work is commissioned promptly. In addition, we offer ICAO A, B and C certified aviation aid systems and retrofit solutions for the international market,” says Claus Sejersen, Head of Innovative Services ROBUR WIND GmbH.

About ROBUR Wind GmbH (ROBUR):

ROBUR WIND is part of ROBUR and combines all competences and services around onshore and offshore wind turbines. With now almost 1,000 colleagues in Europe, North and South America, ROBUR WIND offers its customers the complete range of services for the long-term economic success of their plants onshore and offshore. A high degree of commitment to innovation, manufacturer-independent technical knowledge and proven expertise characterise ROBUR WIND – not least thanks to its profound know-how in the field of prototype construction. As an independent service partner for manufacturers, owners and operators, we also contribute to ensuring that onshore and offshore wind turbines throughout Europe produce a reliable total output of over 160 GW, thus securing ecological energy production and the protection of our planet for future generations.

For questions please contact: Melina Matz
Project Manager
+49 160 93 16 53 37

Further information ROBUR:

ROBUR WIND GmbH takes over the business of REETEC GmbH with effect from July 1, 2020 and continues the operations at the location in Bremen. With now almost 1,000 colleagues in Europe, North and South America, ROBUR WIND offers its customers the complete range of services for the long-term economic success of their wind turbines, on- and offshore.

“When ROBUR was founded in 2015, we focused on the ecological change in the industry and consistently advanced the expansion of the wind group in ROBUR,” explained Jan-Jörg Müller-Seiler, CEO and Managing Partner of ROBUR. “The service and the experience of the almost 120 colleagues at REETEC strengthen our leading position in wind in Europe as well as in North and South America and helps us to grow further, together with our customers.”


“ROBUR WIND unites all competences and services around on- and offshore wind turbines. Together with our almost 1,000 colleagues, we provide all services from inspection, maintenance, repairs and replacement of large components to optimization for the safe and economically successful operation of our customers’ wind turbines,” explains René Psarski, Managing Director of ROBUR WIND.

“Safety, quality, commitment and speed of reaction characterize REETEC as a highly specialized wind energy service provider for on- and offshore since 1996. We complement the ROBUR WIND portfolio perfectly in the sectors of operation and maintenance services (O&M), major component replacement and repair, rotor blade and tower services, electrical and mechanical assembly, electrical engineering to qualification and training. And we are adding an important component to it with our core competence of aviation aid systems. Especially with regard to the legally required on-demand night-time marking (German: BNK) conversion by summer 2021,” added Detlef Lindenau, Managing Director of REETEC.

“ROBUR is always striving to further expand our solutions for high-quality industrial services and our range to support our customers’ digital transformation and ecological change. Therefore, REETEC helps us to position ourselves even more broadly in the wind and to develop further innovations in the wind turbine service for our customers,” concluded Florian Kopp, Co-Founder and Managing Partner of ROBUR.

About the ROBUR Industry Service Group GmbH (ROBUR):

Founded in 2015 in response to the changing challenges of high-quality and becoming more digital industrial services, ROBUR is now with meanwhile 20 companies and approximately EUR 200 Mio. turnover in 2019 one of the top 10 industrial service providers with global presence in Germany. Both the financing and the management of the group are based on partnership and entrepreneurial spirit. The companies benefit from the size and the internationality of the group and can make use of the synergies in sales, capacity and management. Approximately 2,500 colleagues work in the wind, water, energy, industrials and process industries and create holistic solutions as expert partners. From planning to implementation, to operation and maintenance, to relocation and decommissioning. They support the design of the digital transformation with solutions in digitization, automation and data-insight. The challenges of ecological change are the drive for creating efficient, optimized and holistic solutions for the benefit of our customers, the environment and the future generations.

About REETEC (now a member of ROBUR WIND GmbH):

REETEC was founded 1996 in Bremen and is one of Europe’s leading independent service providers for onshore and offshore wind energy. The comprehensive service portfolio ranges from operation and maintenance services (O&M), major component replacement and repair, rotor blade and tower services, electrical and mechanical assembly, electrical engineering, qualification and training to aviation aid systems.

For questions please contact: Tobias Gärtner
Project Manager
+49 89 54843970

Further information ROBUR:

The General Administrative Regulation (German: AVV) for on-demand night-time marking (German: BNK) was approved by Federal Council resolution. This gives operators of wind turbines planning security for the necessary conversion. More than 40 corresponding BNK-retrofits by REETEC have already been put into operation.

As part of its comprehensive aviation aid portfolio, REETEC offers customised solutions for retrofitting wind turbines both for on-demand night-time marking as well as the newly added requirement for equipping them with infrared light on top. The following detection systems for air vehicles are supported:

Since the law affects new and existing plants equally, REETEC’s offer includes both retrofit solutions and complete replacement systems. All RE-LED2 aviation aid systems are already prepared for BNK-retrofitting, but older REETEC systems also become BNK-compatible via easy-to-install upgrades. The same applies to the REETEC infrared lamp – due to its compact design it can be retrofitted with little effort even to older REETEC aviation aid systems. In addition, REETEC offers turn-key solutions for systems that cannot be refurbished.

“With the passing of the AVV, operators of wind energy plants – we are talking about approximately 17,500 here – finally have the necessary planning security. REETEC has already delivered and commissioned BNK-retrofit kits for more than 40 installed turbines in five wind farms. The flexible concept we developed in foresight has now also proven itself in the field: it meets all requirements of the new AVV and we can start immediately so operators meet the deadline of June 30, 2021,” says Claus Sejersen, Director Sales and Marketing at REETEC.

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