New built private collective housing: collective hot water production by solar heat pump.

This new built private housing is located in Marseille, in South-East of France. Climate and sunshine are very favorable to the installation of a “solar heat pump” which means that the cold source consists of unglazed solar panels installed on the building roof.

Key facts

Building Heat pump and source
Location Marseille, France Number of HP 2
Construction 2015 Installed power 2 x 12kW
DHW production collective heat pump
Operation mode DHW only
Heated area 2833 m² living Heat source unglazed solar panels 100 m²
Level of insulation BBC-Effinergie label
Heating system Domestic hot water
Heat demand unknown Type of system central
Heating temperature unknown Max. temperature 60 °C
Hot water storage 2 x 2000 l
Other information
Annual COP 3.6
Renewables part 70%
Electrical part and elctrical backup 97% and 3%

Description of the technical concept

The system consists of :
– 2 x 12 kW Brine/Water heat pump Solerpac®
– 2 storage tanks with a 2000 liters capacity each
– 100 m2 unglazed solar panels
Heliopacsystem® is a domestic hot water production technology for collective applications. It uses specific solar panels able to collect energy from both sun and air.
Here, heat is collected on the roof by 100 m2 unglazed solar panels. Brine heated in these panels is sent in the evaporators of the heap pumps.

Case Studie Sheet FR Marseille