Cunning plan?
The work sites seem to be moving ever further North where the climate is less hospitable.
For example Lytham St Annes is a lovely place with nice sandy beaches and a mild climate where people go to retire. Sheffield is also a pretty nice place to live.
So are they picking places with low expectations and high unemployment in the hope that existing staff just won't want to move there? Cheap land, cheap labour, development grants?
Nothing against the places named, just the further North you go the shorter the summer.