Dispute over Cairngorms wind farm plan
22 October 2012 Last updated at 14:48 BST
The renewable energy industry has published figures which, it claims, show Scotland is producing enough low carbon electricity to offset emissions from Longannet power station in Fife.
Anti-wind farm campaigners have said the figures are misleading and do not show the true picture.
It comes as a public inquiry into plans for a large wind farm near Cairngorms National Park gets under way.