Body heat from commuters passing through Sweden’s Stockholm Central Station will heat a new office building nearby.

A project from the Swedish state-held property administration company Jernhuset is planning to use the body heat from hundreds of thousands of people who pass through the Stockholm Central Station each day to heat a new office building nearby.

More than 125,000 people hustle through the station from their commutes each day. The rising temperature in the area once thought to be a nuisance will now be captured and put to use.

According to, apparently the system is fairly simple: "Just a bunch of pipes that will collect the heat and pump it out of the too-warm train station and into the office building being built nearby."

Body heat from Stockholm Central Station will provide roughly 20 percent of the heat for the new building. The system will only cost about $30,000 to build.