The BBC reports on an innovative green heating initiative in Stockholm:

In Sweden, the Jernhusen company, which owns Stockholm’s central station, is planning to channel passenger warmth to heat a 13-storey office block being built next to the station.

Heat exchangers in the station’s ventilation system will convert the body heat into hot water, which will be pumped into the heating system of the building.

It is not yet certain how effective the technique will be.

But Jernhusen engineers hope it will meet up to 15% of the heating needs of the building, which will provide about 40,000 square metres of space for offices, hotels, restaurants and shops.

Some existing buildings already recycle body heat from people in the building to contribute to heating requirements.

But this is the first time excess heat is to be transferred from one building to another.

Thanks to Dana