Nabralift decommissioning process: a case comparison to hybrid towers
Today, there are more than 34.000 onshore wind turbines which are 15 years or older, with a total capacity of 36 GW (WindEurope, 2020). Among those, 9 GW belong to turbines that are 20 to 24 years old and 1 GW to turbines that are 25 years or older. The average life expectancy of a […]
Why torsional stiffness of Jacket-type structures has a low influence in WTG dynamics
Wind turbine towers are traditionally based on steel tubes of large diameter and thickness. This configuration provides an excellent torsional stiffness, and therefore torsional modes are very fast (usually allocated between the 3P and the 6P excitation frequencies band) and torsional deflection on tower
IV SME Award Internationalization Category 2020
Source: Diariodenavarra.es En la Navarra de hace 20 años apenas se oía hablar de la industria farmacéutica. Pero con Cinfa como locomotora en un corto espacio de tiempo fueron surgiendo otras compañías con dimensión industrial, ligadas a la innovación y a la tecnología que han aportado cons
Breaking the logistic barriers in XXL blades industy
MODULAR BLADES MARKET The growth of the wind market, together with the low availability of sites with optimal wind conditions, is creating a rapid increase in the size of turbines and therefore the diameter of some rotors that work at specific low power levels. This leads to the need for longer blades who
WTG dynamics in soft & stiff towers beyond 160m hub height
The latest generation of wind turbines announced by the leading OEMs will shift wind turbines to rotor diameters of 150m and blade tip heights above 240m. As a consequence of this, the transport and installation ofmassive blades and towers becomes one of the great challenges in the renewable energy indust
Nabrawind Technologies: a solution for wind turbing scaling
Nabrawind Technologies was founded in 2015 by veterans of the renewable industry with decades of experience in development of innovative technologies. The team currently consists of 20 engineers, who have spent the last 20 years working with the major global manufacturers of wind turbines The headquarters