Wind Turbine Platforms in Leith Dock

These huge yellow platforms keep popping up in Leith harbour.  In fact, when we were up in Banffshire last weekend, we saw a tug towing two of them into the North Sea.  I believe they come up from Newcastle, stop over in Leith for some reason, then go North. It must be a massive wind farm that is being built.
I thought the incongruous juxtaposition of the platforms shining in the sun and the pantile roof of 17th century Lambs House was striking.