7
EVALUATION OF ENERGY EFFICIENT USE AT THE LEVEL OF NATIONAL ECONOMY
Authors: RUGINĂ V., BADEA A.
Number of views: 344
The paper presents the importance of
evaluating energy efficient use that is explicitly
stipulated in the strategic and legislative documents
adopted at the national and international level,
including the Directive 2012/27/EU and the Law
121/2014. Energy intensity frequently that is used in
international evaluations and comparisons of energy
efficient use is also used in Romania. The topic is
approached both by specialists and politicians,
newspapermen, representatives of the public opinion
etc. This indicator has acquired axiomatic valences
and its values are presented as unquestionable
arguments for incontestable truths. Nevertheless,
besides correct and well-balanced approaches one
may come across distorted presentations and
exaggerations resulting from superficially knowing
the problem. The information and data presented in
the paper can bring clarifications on this field.
In the first place, energy intensity characterizes the
economic efficiency of energy utilization and only to
little extent the technical efficiency. Its value is
directly linked to macroeconomic parameters, among
which the parity between the national currency and
the currencies in international circulation, the
structure of the national economy etc.
The paper presents different variants for the
interpretation and calculation of the energy intensity
indicator value, including the corresponding
mathematical models. Based on the primary
information obtained from reliable sources (National
Institute of Statistics, EUROSTAT data base) values
of this indicator are calculated in different variants
that are considered and comparisons between the
obtained results are made.
Choosing the variant for defining and calculating
energy intensity, respectively, depends on the purpose
of the analysis to be carried out and needs to be
explicitly presented together with the results
obtained.
The paper includes recommendations on how the
calculation variants and the results obtained by
carrying out these analyses according to their purpose
(carrying out international comparisons, analyzing
the evolution of internal situation in a certain period
of time etc) should be used.