Environmental Engineering Reference
In-Depth Information
in the system is the neg-entropy as the result of the change in the structure of
the system leading to better performance.
SUSTAINABILITY INDEX
Ecological
Social
Technical
Economical
Figure 1. Sustainability Index Structure.
2.3.
R
ESILIENCE
M
ETRICS
The safety of an
energy system is the immanent property to any system. It
reflects the quantitative measure of degradation of the system
.
It may be seen
as the potential property predicting total degradation of the system. It is
commonly known that any degradation of the system proceeds with changes of
the main properties of the system. Since the sustainability index is a complex
property of the system it will lead to the possibility to define those rates of
change, which may have different consequences [9].
The resilience of an energy system is defined as the capacity of an energy
system to withstand perturbations from e.g. climatic, economic, technological
and social causes and to rebuild and renew itself afterwards. In this respect, the
quantification of the resilience capacity can be used as the merit for
withstanding differing events leading to potential damaging consequences. So,
