Buech Energy Center: How a Large-Scale Geothermal Probe Field Will Transform Bern’s District Heating Introduction: A new chapter for urban heat supply in Bern In western Bern, the Buech energy center is pioneering a smart, circular approach to urban heating: capturing excess waste heat, storing it underground during warm months, and returning it to the district heating network when buildings need warmth. The recent completion of pilot geothermal probes, deep exploratory boreholes, and groundwater monitoring marks a major step toward a planned geothermal probe field of roughly 1,100 probes drilled to about 300 meters. This project demonstrates how geothermal probe fields and seasonal heat storage can unlock major efficiency gains when combined with waste heat utilization and a modern district heating system. Why Bern’s approach matters: combining waste heat utilization with seasonal storage Municipalities increasingly face two parallel challenges: reducing fossil fuel dependence and mak...
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