Analysis of the Spanish industry economical losses due to interruptions in the electricity supply

Authors

. This paper focuses on the evaluation of the

economic consequences of a lack of power quality in the

industrial sector. The term Power Quality includes, in general, a

set of boundary conditions which allow electrical systems

connected to the grid to function in their intended manner,

without significant loss of performance or life. Therefore, the

operation of the power system outside these boundaries directly

impacts on the economic performance of the whole system. The

evaluation of the economical loses derived of this fact has been

matter of several studies, mostly applied to individual cases,

with calculation methodologies either too complicated to be

applicable, either needing a large input of data most dealing

with confidentiality issues or either based on particular cases

and impossible to extrapolate. The methodology proposed in

this paper is relativelly easy to apply, covers a large range of

cases and is based on data directly retrieved from estatistics of

the Spanish government free downladable and free of

confidentiality issues. An example of the application of this

methodology and an analysis of the results is also provided.