With the turbine foundations and all electrical components in place, the Hibaldstow wind turbine installation was able to commence – despite the lousy weather!
The image on the left shows the lower tower section being lifted toward the turbine foundations. Two cranes are visible; the main crane is lifting the upper end of the tower section, with the smaller crane acting to temporarily prevent the lower end from swinging or colliding with other objects on site. Once sufficient height is attained, the main crane takes full control of the lifting procedure.
The centre and right images show the upper tower section being lifted; at first with two cranes, but then with the main crane only as the upper tower section is lowered onto the lower tower section. Once installed, the turbine tower stands 50 metres above the foundations below.
Once the tower was in place, the next step was to install the nacelle. The twilight image below (left) shows the nacelle being lifted into position on top of the upper tower section. The nacelle will enable the rotor blades to be turned into the prevailing wind, maximising the efficiency of the turbine.
The following day the generator and rotor blades were fitted. The image below (right) shows the 30-tonne generator being lifted into position. This will be fixed to the nacelle perched on top of the upper tower section 50 metres above the ground.
With the generator in place the pre-assembled hub and rotor blades were attached, completing the installation. The EWT 500 kW turbine has a rotor diameter of 54 metres and a hub height of 50 metres. It is calculated that the Hibaldstow wind turbine will provide at least a large proportion of, or even match the on-site demand for electricity. This will significantly reduce running costs and improve the environmental sustainability of the enterprise.
Are you considering a wind turbine project?
The first step to develop any wind power site is to conduct a full Wind Turbine Feasibility Study.