Insulation alone is not the answer (although it is a big part of it), but Pilkington would say that wouldn't they - THEY PRODUCE INSULATING GLASS. If you listen to Tate & Lyle sugar isn't bad for you, either. You need to be able to quote independent sources, not biased ones.
Ireland is currently undergoing a massive wind turbine construction plan and the gov't here recognise that it's just not big enough. At the moment about 11% of Ireland's electricity comes from wind and that should grow to about 25% in the next ten years. SOme of the Scandinavian countries have over 30% of their power from wind already (circa 1999 figures).
The thing is we need two things. We need more electricity now and we need to replace the fossil fuel sources very, very quickly. We need to do this NOW! There's no time to look for alternatives. It's that simple.