D2.2 Definition of use cases and KPI framework for the CoolHeatDC project

The need for data centres is critical, and they are a rapidly growing component of Europe's digital infrastructure. Currently, most data centres reject the large volumes of excess heat generated by their cooling systems to the atmosphere. The project "Two-phase Immersion Cooling with Integrated Heat Upgrade in Data Centres" (CoolHeatDC) addresses this issue by developing two-phase immersion cooling systems with integrated heat pump technology, which can efficiently cool high-density data centres and recover upgraded excess heat for external use. This deliverable presents the results of Task 2.2 and T2.3: The first task is geared at defining sets of key performance indicators to support the evaluation of the CoolHeatDC concept at different stages of the project, including theoretical assessments, experimental investigations, and techno-economic and business case analyses. The second task aims at defining large-scale use cases for the application of CoolHeatDC solutions in Austria, Poland, and Norway.