Commuters' surplus body heat used to warm office building

Did you know the energy people expend dancing can be used to power cellphones and even nightclubs? Swedish Jernhusen, a real estate company has devised a way to use the excess body heat of the more than 200,000 commuters passing through Sweden's Stockholm cenral station. 

The project is scheduled to be completed in 2012 and Jerhusen are aiming to obrtain Green Building certification. So how does it works? Very simply the station's ventilation system includes heat exchangers that convert all that excess warmth into hot water. That water is then pumped to the nearby building, where it reportedly reduces energy costs by as much as 25 percent. Website: www.jernhusen.se . you will have to use Use Google translate the site from Swedish