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EPFL Thermal Plant
This lecture explains the operation of the EPFL Thermal Plant (CCT) following the renovation of its heating and cooling facilities on the Lausanne campus. The EPFL has been a pioneer in using energy resources, utilizing lake water for cooling since the 1970s and for heating since the 1980s. The recent renovation involved installing 4 heat pumps with a total power of 24 MW, sufficient to heat all campus buildings. The plant operates in three stages: water pumping from the lake, heat production using ammonia-based heat pumps, and water distribution through the campus. Additionally, the lecture covers the integration of a 1000 m² data center within the plant, hosting up to 200 computer racks and utilizing the heat generated by the racks to improve heat pump efficiency. Various energy-saving initiatives at EPFL, including sustainable food, reduced business travel, and promoting eco-friendly commuting, are also discussed.