Nabralift®
Renewable energies
Nabrawind
Nabralift® is a self-erecting tower formed by a three column structure installed under the uppermost part of a wind turbine generator tubular tower, resulting in a hybrid support steel tower.
Commercialised by
Nabrawind
Pamplona
Avda. de Carlos III el Noble 11, 2 izda, 31002 Pamplona, Navarre, Spain
Sustainable developement goals
Self Erecting Tower, a new technology that breaks the barriers to the growth of the wind turbines hub height
Ultra-low cost (unique selling proposition USP). Fast Installation without large cranes. Logistic barriers removed. Advanced maintenance technologies. Easy integration on WTG. Proven and validated baseline technologies.
The need
New wind farm emplacements are for areas of low force wind. However, the best wind is located at 200 metres, so taller towers must be constructed. They present a challenge from a logistic and economical point of view.
The solution
Nabralift combines a light but rigid steel structure with a self-erecting system. This way, Nabralift solves significant logistical constraints as they can be transported in standard trucks. It also offers a cost-effective option since it avoids the requirement for tall cranes and reduces the foundation required. All in all, Nabralift saves up to 20% in costs when compared with alternative solutions, such as concrete hybrid towers.
The value proposition
- Tower full-cost (also including foundation, logistics and installation) is reduced by a 15/30%.
- Fast installation: installation in three days, even in windy conditions.
- 15m/s average speed. Reduces inefficiency by up to 50%.
- Maintenance free.
- Total cost reduction of up to 20%.