a SECRETIVE Canadian millionaire who campaigned against the controversial Beauly/Denny transmission line may be forced to give those building it access to his land.  Scottish and Southern Energy (SSE) yesterday confirmed it had applied to the Scottish Government for a Compulsory Purchase Order (CPO) in respect of a small piece of land, 245 square metres, on the Eilean aigas Estate near Beauly.  SSE said it needed access to the land so minor road the C1108 could be widened to ensure the safety for construction traffic and people in the area. The land is owned by Brendan Clouston, the former executive vice-president of Tele-Communications Inc.  Mr Clouston, whose estate house is on Eilean aigas, an island in the River Beauly, has been an opponent of SSE s plans for the 137-mile line, which will transmit green electricity generated in the Highlands and Islands to Denny on 600 giant pylons. He helped finance the campaign against the ?350 million project.  Four years ago he argued an underground line would cost half as much as has been claimed by SSE and would prevent damage to some of Scotland s most beautiful scenery.  a spokeswoman for SSE said  We do not undertake CPOs lightly. It is the last option for us and in the vast majority of cases we get a voluntary agreement.