[[wysiwyg_imageupload:154:height=243,width=353]]Homes built for high efficiency are becoming more attractive to cosumers. Buyers in the USA think first these days about buying homes that are built to save energy, rather than purchasing a home that isn't efficient and then trying to upgrade its efficiency. See the article at http://www.theatlanticcities.com/technology/2012/01/how-home-builders-are-selling-green/1048/