ABO Wind also manages the wind farm construction in order to ensure that deadlines, quality standards and cost calculations are met. In other words, ABO Wind plans, coordinates and supervises the construction phases, including:
Access Roads and Installation of the Foundation
Local small and medium sized construction firms are normally used as much as possible to do the construction work. The first steps in wind farm construction are to build access roads and crane hardstandings, and to install the foundations. To minimize disruption, existing access roads are used whenever possible, and improved as required.
Electrical cable to connect each turbine to an on-site electrical control building is usually laid underground parallel to the access roads. By using a cable plough, up to 1,000 meters of cable can be laid daily.
Wind Turbine Construction
The actual erection of a wind turbine takes place within a few days and involves three steps. First, the tower segments are delivered and are assembled using two cranes, one used to lift and the other to steady. Then the nacelle, which houses the electrical generator, is mounted on top of the tower. Finally, the three rotor blades are connected to the hub, which is then lifted by cranes and attached to the nacelle. In some cases, each rotor blade is lifted and connected seperately.