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Stockholm heats office building with excess warmth from busy train station
photo by Michell Zappa (source: Wikimedia Commons)
The central station in Stockholm, Sweden is Scandinavia’s busiest travel hub, serving 250,000 travelers every day. These hurried commuters generate a lot of body heat – and Swedish engineers have come up with a way to transfer this heat to a neighboring office building. It’s a cheap, renewable and innovative solution for the building’s energy needs.
An article in Time magazine’s Going Green section explains:
Using excess body heat to warm a building is not a new concept — the Mall of America in Minneapolis recycles the heat generated from shoppers’ bodies to help regulate the temperature of the massive complex during Minnesota’s dreadful winters. But Stockholm has taken the idea a step further by successfully transferring excess body heat from one building to another.
–Time
For an initial cost of only $30,000 (€22.5k/₤19.5k) a system was installed that pumps water warmed from the heat released from people passing through the station to nearby Kungbrohuset office. This provides 15% to 30% of the office’s heat, with expected annual energy savings of 20%.
Check out the accompanying video from Time:
‘Body Heat: Sweden’s New Green Energy Source’
by Graham Land
Tags: body heat, central, energy, excess, heat, station, Stockholm, Sweden, Time
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