Energy provider Scottish and Southern Energy (SSE) has offloaded its 100% interest in three UK wind farms for £173.6m.The three sites - Dalwinton and Minsca in Scotand, and Slieve Divena in Northern Ireland - have a total capacity of 96.8 megawatts and have been sold to renewable power generator Infinis (owned by private equity firm Terra Firma)."While we are planning long-term growth of our wind energy portfolio throughout the UK and Ireland, we have always said that we will use disposals and acquisitions to optimise our wind farm portfolio, and this sale is consistent with that," said SSE finance director Gregor Alexander."I believe this is a good deal for SSE and Infinis, two companies with a strong commitment to renewable energy," he said.In May 2010, SSE sold its 100% interest in Ardossan Windfarm Ltd (Scotland) to the same firm for a total of £53.8m.---bc