Moving Bodies Help Warm Stockholm Building  About 220,000 people
make their way through Stockholm's Central Station each day.
Down the block from the station construction is about to start
on a 13-story building called Kungsbrohuset that will depend on
the heat of those travelers' comings and goings to keep it least
partially.  The idea is not new (read our earlier take on it
here) but borrowed from the passive building concept. Among
Kungsbrohuset's other green plans, detailed below, is a very big
heat exchange system that, instead of venting extra heat
generated from travelers, will recover it, exchange it to a
water medium and pump it to the neighboring new building. When
finished, Kungsbrohuset is set to conform to three environmental
standards: the EU's GreenBuilding Programme, a voluntary system
requiring buildings to strive for 25% lower energy usage than
conventional standards; the local P-märkning, which includes
quality specifications for indoor air and energy use; and a new
standard, Byggabo, which