The address below shows evidence for Scout Moor Windpower Station Inquiry, submitted by Dr. Kaye Little of the Cefn Croes Action Group entitled: 'DAMAGE CAUSED BY WIND DEVELOPMENT INFRASTRUCTURE'. This was written back in 2004 and relates to a Welsh wind farm development, but is still usable.
It would obviously have to be edited and modified to suit the Blackhill Development, but it gives a good basis and lots of good information to use in an objection letter.
http://www.users.globalnet.co.uk/~hills/cc/scoutmoor.pdf
Hope this helps and good luck with objection!