Civil Engineering Reference
In-Depth Information
Category I.
This category includes load matching indicators that do not
need any additional information besides the load and generation profiles.
The first four, namely the
load match index
, the
solar fraction
, the
cover
factor
, and the
self-consumption factor
, contain essentially the same
information(thefractionoftheloadcoveredbyon-sitegeneration),butthey
differ slightly on the mathematical formulation or simply in the name. For
example, the load cover factor (example shown in
Figure 6.5
)
is defined as
(6.5)
Fig. 6.5
Mean hourly values of load cover factor for different months in the
year in an all-electric Net ZEB
Category II.
This category collects indicators used to describe the grid
interaction of a building using only
on-site
load and generation profiles. The
grid interaction index
shows the variability of the amount of purchased or
delivered energy for a given time resolution (
i
), normalized by the highest
absolute value in a given period.
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