Environmental Engineering Reference
In-Depth Information
power plant. Social indicator will include maintenance cost which is from the
need for cleaning photo modules.
Having
in
mind
definition
of
the
sustainability
indicators
the
Sustainability Index [10] is
ik
Q
w q
(1)
i
1
where
φ - weighting coefficient
q - specific indicator
Resilience Index [11] is integral of the Sustainability Index between time of
sudden change in the respective indicator and time when it resume steady state
value (see figure 2). The resilience index for an energy system is composed of
the following elements: economic, environmental, technological and social the
resilience indicators.
Resilience Index is integral of the Sustainability Index between time of
sudden change in the respective indicator and time when it resume steady state
value. The resilience index for an energy system is composed of the following
elements: economic, environmental, technological and social the resilience
indicators.
tt
ik
1
R
w
100
q dt
j
i
i
i
1
tt
(2)
0
where
j(x) - resilience indicator
q(x)i -indicator
wi - weight coefficient
The resilience indicator is composed of sub-indicators. In the same way
the environmental, technological and social resilience element could be