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Nabralift

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…

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Nabralift

Why torsional stiffness of Jacket-type structures has a low influence in WTG...

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…

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Products

The Challenges of Designing a Modular Blade

(This is an article released in Indian Wind Power Magazine.) Modular blades are not something new in the wind industry. More than a decade ago, some companies such as Gamesa or Enercon released their own split blades. However, at that…

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Blog

PATENT AS TECHNOLOGICAL INDICATOR IN RENEWABLE ENERGY

When a global, capitalist and changing world, patents are the only proven and reliable technological bulwark. The already patented technologies have passed a broad filter when compared to State of the Art (everything that previously has been published worldwide) that…

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Nabrawind

Blog

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…

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Nabrawind

Blog

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…

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Nabrawind

Blog

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…

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Nabrawind Technologies is dedicated to the design and development of advanced wind technologies for wind turbine components, as well as engineering services advisory.

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