Therefore considering the location used for this
study (Genoa, Italy) and the exterior wall stratigraphy (internal
insulation with 8 cm thickness) the energy saving for air conditioning
is assumed to be in a range of 10e20%. This percentage has
been subtracted from the annual energy consumption for air condition.
The annual energy demand for air conditioning has been
calculated thanks to a simulation model (Termo Microsoftware) of
the virtual building used in this analysis. For the different green
walls systems, the energy cost saving for air conditioning (from888
to 2017 V/year) is shown in Table 6.