At that time, how far did you have to go to clear the construction sites?
Looking at the maps there's turbines planned right next to where you camped.
http://sse.com/media/411271/Glendoe_And_Stronelairg.pdf

EDIT:
This map doesn't help either
http://www.arcgis.com/apps/webappviewer/index.html?id=5ec04b13a9b049f798cadbd5055f1787

But then again that's old info but still interested as I missed that when planning my campsite. It's not a problem hiking longer but then again hard to tell how many viable spots there are east toward Cairn Ewen for example.

They stopped about 2km from where I camped but there may be more now. Seriously, it’s horrible. I’m sure someone else will have more up to date information. I’d rather do the Corrieyairick and get onto the ridge via Geal Charn the next day. Fair bit longer but you’d avoid hell.