SCOTTISH and Southern Energy has sold three wind farms, including two in Scotland, but said it still plans to increase its renewable generation north of the Border.  Perth-based SSE, owner of Scottish Hydro Electric, raised ?173.6 million by selling its 30-megawatt Dalswinton and 36.8MW Minsca facilities in Dumfries and Galloway as well as Slieve Divena, with 30MW of capacity, in Northern Ireland.  The deal doubles the wind energy capacity of buyer Infinis, owned by private equity group T