Civil Engineering Reference
In-Depth Information
Fig. 2
Contribution of each retrofit actions to the GER in brno case study (brewery)
roof, and with 60 mm polystyrene boards for the ground floor, involved a primary
energy saving of 126 MJ/(m
2
y). The introduction of low-e windows saves 123 MJ/
(m
2
y). As indicated in Table
3
, the PV panels provided a yearly electricity pro-
duction of 119 GJ/y. The related primary energy saving was 443 GJ/y (156.5 MJ/
(m
2
y)). The high-efficiency HVAC system involved a yearly electricity saving of
14 GJ/y and a yearly heat saving of 772 GJ/y. The related primary energy saving
was 1,292 GJ/y (486 MJ/(m
2
y) for a total floor area of 2660 m
2
).
Fig. 3
GER compared to the total energy saving in Gol case study (Hol Church)
