Environmental Engineering Reference
In-Depth Information
The fifth segment provides procedures on the breakdown of the building
energy needs and system energy losses, aiming to gain clear insights into
where energy is used.
The sixth segment provides the building energy needs and energy use for
each application (heating, cooling etc.) and the interactions between them.
The seventh segment provides the input data on components, such as ther-
mal transmission properties, air infiltration, solar properties of windows
and energy performance of system components and efficiency of lighting.
FIGURE 7.2
Harmonisation of terms is essential. (From Van Dijk, D. and Khalil, E. E.,
ISO Focus
., 25-27, 2011.)
Building energy performance
Space to make reference to the
certification scheme used
As built
Asset
rating
Very energy efficient
A
B
C
C
D
E
F
G
Not energy efficient
Units used
kWh/m
2
130
Space to include additional information
on building energy consumption
FIGURE 7.3
Example of energy performance certificate. (From ISO publications ISO 23045_2009, January 2009.)
