If he is, he better start investing in grid scale energy storage solutions. The problem with wind and solar is that they are inherently peaky supplies of energy. Wind provides power when... the wind is blowing. Solar, when the sun is shining.
The same applies to power demand - the amount of energy being drawn from the grid depends on a bunch of factors, including the time of day and the weather. In the UK, where air conditioning is a relatively unusual amenity, power demand tends to be lowest during summer days, and highest during winter evenings.
The peak in supply rarely coincides with the peak in demand in this country. To support this, you typically need a different energy source to provide base load - something that isn't dependent on the weather. In the UK, this is from nuclear, gas and, during the winter, coal (coal is restricted as it's highly polluting, so the energy companies prefer to use it during the winter when prices are highest)
What this all boils down to is that, while Scotland (and the UK as a whole) has huge potential reserves of wind energy, without grid storage solutions it's not necessarily going to make a huge amount of money.
Thank you for that explanation. It would seem though that Salmond has every intention of pursuing his cherished idea of wind farms -http://www.telegraph.co.uk/news/uknews/scotland/10760835/Scotland-has-more-than-half-the-UKs-wind-turbines.htmlhttp://www.heraldscotland.com/news/home-news/wind-farm-extension-plans-approved.1406131387