Whether it be lifting tools or shifting components in order to maintain the modern day wind turbines which are rapidly popping up just about everywhere, the Electric Chain Hoist is perfectly suited to the job, however not just any hoist, only few will do!
The one of two that fits the bill is the Lodestar Electric Chain Hoist, the second of the two is a GIS Electric Chain Hoist (GIS also offer a special GCH WIND model hoist which is actually designed for the wind turbine market) the Swiss manufactured hoist is a favourite among many in the market (The Lodestar is manufactured in Virginia, USA).
A hoist to fit the requirement will need to run three phase power (you can run single phase but you will have to take many breaks as the motor gets hotter faster- you have a lower duty rating with single phase hoists) the hoist will need long heights of lift maybe up to 120m, dual speed hoisting operation with hook suspension (or other depending on the application). Many will request stainless chains but this is not necessary and is very expensive/impossible at this height of lift, simply lubricate and you will be fine.
An idea for cost, something like this will most likely be in the region of £2,500.00-£5,000.00 per unit ($4,215.00-$8,430.00).