Nabrawind Technologies

Nabrawind has developed and patented a wide product portfolio with the objective of reducing the LCOE of wind projects.

In detail, Nabrawind has developed five products that, in summary, are:

1. Nabalift. A Self-erecting Tower that breaks all the barriers that are restraining the growth of the wind turbines hub height. Nabralift consists on a three-columns structure installed under the uppermost part of a WTG tubular tower and integrates a Self-Erection System (SES) that allows the installation of a full WTG (tower, nacelle, rotor) without using large-size cranes regardless of the final hub-height.

2. Nabrajoint. Nabrawind Modular Blade System is a technology applicable to any wind turbine blade (existing or new) that allows manufacturing blades in two or more parts that are transported separately and assembled on site. Nabrajoint technology is based on a bolted connection between blade modules with conventional, controlled and robust assembly methods.

3. Nabrabase. A very cost competitive alternative in wind farms where the concrete supply may represent a challenge. It is a new wind tower elevation foundation that consists of a tripod installed under the tubular tower, resulting in a hybrid support structure. 

4. BladeRunner. It is a blade’s maintenance and installation system. It is based on the installation of small pieces of equipment on the hub of the wind turbine with which the blade is directly manipulated and ascends and descends in a vertical position. The system is connected directly to the blade root inserts or T-Bolts, which avoids applying force on its aerodynamic surface, thus eliminating the risk of cracks appearing in the handling area.

5. Skylift. It is a craneless wind turbine installation system. It is compatible with any kind of standard wind turbine. The system is integrated by two components. First, a Self-erecting System, capable of installing both nacelle and tower even in extremely high wind conditions (wind speed up to 15 m/s). After that, the BladeRunner installs the rotor also without the need of any kind of crane.