Stockholm Central Station sees more than 250,000 passengers pass through it every day. And the strange thing is that these people have no idea that their body heat is being harnessed for energy.
The more passengers move around Stockholm’s central station, the more energy they produce. In 2017, engineers at Swedish real estate company Jernhusen figured out how to use this excess energy to heat another building in the same area.
Using body heat to heat a building has been used in crowded buildings such as shopping malls and cinemas in the winter. What is different about Stockholm Central Station is how engineers are collecting the excess heat and transferring the energy between the station and the 13-storey Kungbrohuset office building, located more than 30m away.
The system at Stockholm Central Station works like this. A heat exchanger is installed in the station's ventilation system. It absorbs excess body heat and uses it to warm water in an underground tank. The water is pumped through pipes to another building and fed into the main heating system.
This system helps reduce 25% of the office building's electricity costs.
In other countries like the US, the financial benefits of investing in insulation, pipes and pumps may not be apparent, but in countries like Sweden, where electricity is expensive and winter temperatures are very low, the benefits are clear.
In addition, this method has some other limitations such as the buildings must be located close together to avoid heat loss if it needs to be pumped over long distances.
Discover simple, step-by-step methods to disable Microsoft Teams at startup and unlock better PC performance. Faster boot times, less resource drain—perfect for Windows users seeking smooth operation.
Stuck with Microsoft Teams "Network Error" offline? Discover proven, step-by-step solutions to fix Microsoft Teams network error offline quickly. Get back online fast—no tech skills needed!
Struggling with Microsoft Teams Error 4oggx? Discover proven fixes to resolve sign-in failures, crashes, and connectivity issues fast. Get back to productive calls without frustration!
Encountering the frustrating Microsoft Teams "Remove Account" Data Error? Discover quick, reliable fixes like clearing cache, resetting the app, and more to get back to seamless collaboration without losing data. Updated with the latest solutions.
Tired of the frustrating Microsoft Teams "Layout Error" Sidebar? Follow our proven, step-by-step troubleshooting guide with the latest fixes to get your Teams sidebar working smoothly again. No tech skills needed!
Stuck with Microsoft Teams offline error in 2026? Discover proven troubleshooting steps, common causes, and quick fixes to restore your connection fast. No tech skills required!
Tired of Microsoft Teams crashing with "Error M" memory issues? Follow our step-by-step guide to fix Error M in Teams, clear cache, update software, and boost performance—no tech skills required!
Discover the easiest step-by-step guide to setting up Microsoft Teams Town Hall events. Host massive virtual gatherings effortlessly with pro tips for seamless execution. Perfect for leaders and organizers!
Struggling with Microsoft Teams "Download Error" on PC? Discover proven, step-by-step fixes to resolve download failed issues quickly. Get back to seamless collaboration in minutes—no tech skills needed!
Stuck with Microsoft Teams "Error L" License error? Follow this step-by-step troubleshooting guide to resolve licensing issues quickly, restore access, and boost productivity without IT hassle. Updated with latest fixes.
Tired of Microsoft Teams video call freezing mid-meeting? Follow this proven troubleshooting Microsoft Teams video call freezing guide with quick fixes, advanced tips, and real solutions to restore smooth video instantly.
Frustrated by Microsoft Teams 'Download Failed Due to Unexpected Error'? Discover proven, step-by-step solutions to fix this common issue quickly and get back to seamless collaboration. Updated with the latest fixes for peak performance.
Frustrated because your Microsoft Teams recording failed? Uncover the top common reasons like permissions issues, storage limits, and network glitches, plus step-by-step fixes to prevent future failures and record flawlessly every time.
Struggling with Microsoft Teams "Error B" connection? Discover step-by-step fixes for smooth connectivity. Clear cache, check networks, and more in this ultimate guide to resolving Error B instantly.
Tired of the frustrating Microsoft Teams "Application Is In A Bad State" error crashing your meetings? Discover proven, step-by-step fixes to resolve it quickly and restore smooth teamwork. Updated with the latest solutions.
