Velux, a Denmark based building company, has started construction on six different model homes that are aiming to showcase “climate-neutral construction” and “optimal indoor comfort” by making the most of natural sunlight and fresh air. Two of the homes will be built in Denmark, with one each in Austria, France, Britain, and Germany. The homes will be vacant for the first 6-12 months after their construction, but once they are inhabited, detailed monitoring of each of the home’s power usage will serve to decide just how much is being saved by living sustainably. Check out the Veluxand Velfac websites to see some of their previous projects, and some of the cool ways they already take advantage of skylights and open concept areas.