I was fortunate enough to visit the construction site of a new wind farm at Perdekop 80 k north of Ceres and just happened to arrive as they were preparing to lift the rotor into position atop a 168 m tower. Just to get some idea of the scale of things.
The smaller of the two cranes, white boom, is at full stretch and is about one third of the Lebherr 1750 monster.. Both lift together, yellow attached to the hub, white the third blade. The black marks on the blade are saddles from which guide ropes are slung.
Lieherr now lifting faster and second crane just keeping the tip off the ground.
White crane now lowering the third blade.
Almost upright..........
.............the guys in the foreground are keeping the blade from hitting the tower with the ropes, those in the background preventing it swinging the other way.
Vertical and white releases.
Ups-a-daisy
Once the blade clears the tower.................
......................the crews on the control ropes walk it around anticlockwise. The last fellow is carrying a 100 litre drum with the rest of the rope in it.
When positioned the crane swivels to bring it closer to the generator.
Can't see them but there must be guys in the housing waiting to bolt it together. Having to climb 168 m to work must make them pretty fit. The red section was obviously added as the 1750 boom is only 150 m long.
Contact - absolutely beautiful to watch.
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