ENERGY regulator Ofgem is poised to hand the Scottish renewables sector a substantial benefit by lowering the cost of transmitting the power generated from wind and wave technology.  The proposal, contained in a paper seen by Scotland on Sunday, would mean huge savings for green energy companies and make Scotland more attractive to investors.  a 32-page report produced for Ofgem by consultancy firm Redpoint Energy, will go out for consultation early next month and has already encouraged lobbyists to expect the cost of transmission to come down.  Sign