SOUTH REUNION HOSPITAL
AIR COOLING

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Genesis of the project :

A major consumer of electricity, in particular for the production of cold necessary for the air cooling of all of its premises, the CHU Sud Réunion Hospital has been identified by EDF (Electricité De France) as an interesting site for the development of a SWAC project.

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Initial studies have been carried out, in collaboration with EDF and with the support of ADEME, for the integration of this technology on the site.

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These studies were deemed sufficiently conclusive for the CHU, still with the support of EDF, ADEME and the La Réunion Island Region, to launch a competitive dialogue procedure in June 2017 to implement this solution and reduce its energy bill.

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Not wishing to bear this investment itself, the CHU preferred the solution of a cold supply contract over 20 years, by imposing on candidates a solution with an EER greater than 10, the EER (or Energy Efficiency Ratio) being the indicator for measuring the energy efficiency of air cooling solutions. An EER of 10 means that it only takes 1kWh of electricity to produce 10kWh of cold.

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This performance requirement is a real commitment of the CHU in favor of the energy transition, since it constitutes a real break with the average efficiency of conventional air cooling systems (EER generally between 2.5 and 3.5).