While modern data center are becoming more and more efficient, as seen with the constantly decreasing Power Usage Effectiveness indicator (PUE), reusing waste heat produced by hardware remains a significant challenge today and for the years to come. Because of its low temperature (30°C-60°C), the aforementioned waste heat is often defined as low-grade. As a result, it is not suitable for many applications like electricity generation and is hard to transport across long distances. It can however be used for many heating applications. Adding waste heat reuse solutions to current data center architectures is also highly complex and comes at a significant cost. One alternative is to distribute the heat source directly where it is needed by tightly integrating computing hardware with the water delivery systems in buildings, like Qarnot does. In addition, the Carbon Facts addon let’s the system precisely determine the carbon footprint of each calculation made on the infrastructure.
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Data centres could be heating millions of homes, so why aren’t they?
Today we know to cool a data centre air cooling solutions are mostly blowing around the air and allowing it to expel into the air.

The challenges of heat refuse from data centres
The topic of energy required to run all digital infrastructure continues to be an important one. Following on from the earlier Digital Infra Network presentation