Councillors have deferred making a decision on a planned extension of Gordonbush Wind Farm in Sutherland until after they visit the site.
Energy giant SSE has sought permission to add 16 more turbines to the 35 that have been operational on the site near Brora since June 2012.
Thirteen of the new turbines would be up to 426ft (130m) in height and the other three 377ft (115m).
They would be taller than the existing 360ft (110m) turbines.
Highland Council’s north planning applications committee agreed to visit the site before taking a decision on whether to support, or oppose the extension.
Planning officers have recommended that councillors raise no objection, subject to several amendments including the removal of one of the planned turbines and reducing the height of another.
The Scottish Wildlife Trust and John Muir Trust have objected to the extension. They say the project would affect blanket bog and wild land.