Low temperature district heating grid in Brunnshög, Lund

Brunnshög – where science heats the city! The world’s largest low temperature district heating grid was inaugurated in Lund, Sweden, in the fall of 2019. The grid is owned by Kraftringen and is based on fossil free energy from recovered waste heat.

The research facility MAX IV Laboratory generates a considerable amount of residual heat through its processes. To make sure that energy is put to good use, the city of Lund and Kraftringen committed to building a next-generation low temperature district heating (LTDH) grid in Brunnshög. The system provides heat for the entire city district through innova¬tive technical solutions as well as novel business models.

The production site has an estimated technical lifetime of 25 years and the infrastructure consisting of district heating pipes has an estimated lifetime of 70 years. In addition to the technical service lifetime, the specific reinvestment rates of the various materials and components are included in the assessment.