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SOLUTION<br />
TEXT Randel Wells | PHOTOS Siemens<br />
4 HIAB METHOD<br />
Dedicated design brings<br />
long-term cooperation<br />
Cargotec has entered<br />
into a long-term frame<br />
agreement with Siemens<br />
Wind Power A/S, one<br />
of the world’s leading<br />
suppliers of wind power<br />
solutions. Cargotec will<br />
supply custom-made<br />
cranes for new Siemens<br />
wind turbines.<br />
Wind is fast be<strong>com</strong>ing a serious, successful<br />
clean energy alternative. The Global Wind<br />
Energy Council (GWEC) estimates as much as<br />
22 percent of the world’s energy could be met<br />
by wind by 2030.<br />
According to the 2010 Global Wind Report<br />
put together by the GWEC, the wind energy<br />
market slowed for the first time. Hit by the<br />
global economic recession, the market grew a<br />
mere 22.5 percent in 2010 – still very healthy.<br />
With a spike in investments and huge orders<br />
placed for new turbines around the world during<br />
2010, the forecast is for strong growth over<br />
the <strong>com</strong>ing years.<br />
Wind turbines need to be serviced on a reg-<br />
ular basis, usually at least once a year. Maintenance<br />
requires hoisting tools and eventually<br />
spare parts to great heights from a very confined<br />
space, namely the wind turbine nacelle.<br />
On average these nacelles are 90–100 metres<br />
in the air, and equipment may need to be<br />
hoisted or lowered from the ground or ship<br />
decks at offshore wind farms.<br />
Each individual wind turbine therefore<br />
needs its own hoisting device, tucked neatly<br />
into the nacelle. Before Cargotec came on the<br />
scene, Siemens Wind Power was using more or<br />
less standard cranes with some minor modifications.<br />
But there were a few design changes<br />
required, and Siemens took the opportu-
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