3.4 Energy Saving Potentials and Energy Efficiency in Manufacturing
65
with E used consumed energy in defined period of time
x
quantity produced in defined period of time
In order to be able to carry out a holistic cost-related assessment of the energy
efficiency measures, it is necessary to take the traditional production KPIs into
account to a certain extent, e.g., when evaluating the costs of load optimizations
that might lead to production quantity shifts into the night shift or the shortterm build-up of buffer stocks to be able to change machine run times. For a
derivation and a detailed description of the classic production KPIs are omitted
in this thesis 13 .
At this point it should be noted that the development of an EnPI system for
the practice partner will not be done in the context of this work. The increase in
efficiency is only measured by the kilowatt hours actually saved.
13 For further reading on KPIs please refer to the authors Nyhuis and Wiendahl [NW2012,
p. 17 ff.] or Kletti and Schumacher [KS2011, p. 65 ff.].
65
with E used consumed energy in defined period of time
x
quantity produced in defined period of time
In order to be able to carry out a holistic cost-related assessment of the energy
efficiency measures, it is necessary to take the traditional production KPIs into
account to a certain extent, e.g., when evaluating the costs of load optimizations
that might lead to production quantity shifts into the night shift or the shortterm build-up of buffer stocks to be able to change machine run times. For a
derivation and a detailed description of the classic production KPIs are omitted
in this thesis 13 .
At this point it should be noted that the development of an EnPI system for
the practice partner will not be done in the context of this work. The increase in
efficiency is only measured by the kilowatt hours actually saved.
13 For further reading on KPIs please refer to the authors Nyhuis and Wiendahl [NW2012,
p. 17 ff.] or Kletti and Schumacher [KS2011, p. 65 ff.].