Back to top
Reported by Nabrawind Technologies on 16 January 2019

Design Certificate of 160m Nabralift Self-Erecting Tower awarded by DNV-GL

DNV-GL has awarded Nabrawind with the Design Evaluation Conformity Statement for the first Nabralift Self-Erecting tower design, that was prototyped last summer in Eslava (Spain), with a total hub height of 160m.

(Courtesy of Nabrawind Technologies)

The certificate confirms that the tower frame structure, designed to be used in 3MW turbines, is designed in conformity with the requirements set in the last generation of DNV-GL standards. The strength of the structure has been verified not only for the most critical situations during the operation of the wind turbine, but also during the erection of the turbine under high wind conditions, using Nabrawind’s patented Self-Erecting System.

All the bolted connections of the frame structure are certified as maintenance-free, what removes the expensive maintenance tasks of traditional lattice towers.

This certificate confirms also the steps for the integration of our tower designs into Type Certificates of existing or new wind turbines, setting a clear roadmap for the development and certification of the first commercial Nabralift towers.



Nabrawind Technologies. Press release - Design Certificate of 160m Nabralift Self-Erecting Tower awarded by DNV-GL. URL: [Date Accessed: 16/01/2019].


17 Dec | ACCIONA will extend blockchain traceability to its renewable generation globally

The company has signed an agreement with the start-up FlexiDAO, selected through the open innovation programme I’MNOVATION, for the initial phases of the GREENCHAIN project


07 Dec | Goodbye to the 4-Rotor Concept Turbine at Risø

The 4-Rotor Concept Turbine that was placed at DTU Risø Cam-pus is now dismantled. The testing of the concept is complete.


14 Nov | BP Installs First Battery Storage Technology at U.S. Wind Energy Site

Project highlights BP’s commitment to innovation and transition to a low-carbon future


06 Nov | DNV GL certifies Ingeteam’s 2MW DFIG converter

Ingeteam, the world-leading supplier of electrical conversion equipment, announced today that it received DNV GL’s certification for its Ingecon®Wind stator-equipped 2MW DFIG converter. With this latest achievement, Ingeteam completes the range of its products covered under DNV GL certification, such as the medium voltage full power converters and the statorless DFIG converters; and demonstrates its ability to consistently meet DNV GL’s quality and safety requirements across multiple drive-train topologies.


25 Sep | Nabrawind installs world’s tallest steel wind turbine tower

Nabrawind Technologies has completed the installation of the world’s tallest onshore steel wind turbine tower in Eslava, Northern Spain.