Massileo is a renewable energy production system designed by Optimal Solutions, a subsidiary of Dalkia (EDF Group). By recovering sea water calories using a warm water loop, this grid is able to simultaneously produce heating, air conditioning and domestic hot water, thanks to heat pumps. This 100% renewable local energy allows Marseille’s housing, offices and shops to trade their calories and to be as much a consumers as a producers of energy. An example of this is the Smartseille eco-district, where Massileo has been operational since 2017.
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