Windflow

I stood below the huge long-as-an-articulated-truck-and-trailer-unit double blades of the Windflow turbine on the hills above Lyttleton Harbour at the weekend and tried to imagine what it would look and sound like, had the wind been blowing.
It wasn't, and nothing stirred other than the crowd of ECO supporters that had made the trip up the hill to have a look at the impressive turbine.
It looked an uncomplicated machine. One tubular tower, set into a concrete pad, two opposing blades and a nacelle containing the gears and wires and other necessary bits and pieces that the Windflow engineers doubtless understand. I didn't but was impressed nevertheless. I did understand though, why there was climbing gear that had to be clipped on before anyone could climb up the inside of the tower to reach the moving parts at the top - you'd not want to lose your grip and tumble down that tube!