The business changed hands in 2006, then again ten years later, each time for ten-figure sums – and it is about to come onto the market again.  The Currency understands that the private equity owners of one of Ireland’s leading energy companies are currently lining up advisers to offload their investment. Mergers and acquisitions specialists in Dublin and elsewhere are vying for the job, or to advise potential buyers. The transaction is being readied ahead of the re-opening of government support schemes for green energy generation from the end of this year. The Renewable Electricity Support Scheme (RESS) will make…