Actually, I get the distinct impression that the authors wanted the UK to appear with wind more expensive at the moment.

Whether that was because having wind better all the time would look like it was not a difficult report to write, or would appear biased, or because they had any reason to avoid stating the obvious, ie that it would be a good idea to exploit the biggest wind potential in Europe, it seems odd to have all those assumptions stretched in the same direction, and just enough to get wind to be just more expensive than gas, and only for a short while anyway.

Earth provides enough to satisfy every man's need, but not every man's greed. Gandhi