In Stockholm, Sweden, a new eco-friendly office building is to be built harnessing human body heat from commuters of a neighboring railway station generated by about 250,000 people who use the Stockholm Central Station.
Designers will use standard heat exchangers in the ventilation system to convert excess heat generated by commuters to hot water and then pump it to the nearby Kungsbrohuset office block. It is hoped that this source will meet 5-15% of the building’s requirements, although the precise effectiveness of the method is unknown at this time.
The Kungsbrohuset is expected to be completed in 2010 and will provide 40,000 m2 for office, hotels, shops and restaurants. Its passive design is hoped to minimize mechanical heating or cooling, which will rely mostly on the sun and human heat.