Even some traditional cleaning chemicals are high in volatile organic compounds (VOCs) which, when evaporated in the confines of the nacelle or hub, can cause respiratory irritation and trigger asthmatic attacks. (windsystemsmag.com)
In addition, all connective fittings have also been installed, which will be used later to mount the tower with its turbine nacelle and rotor blades. (eon.com)
The blades weigh 35 tons apiece, and the nacelles are some 390 tons each. (masterresource.org)