This paper presents a summary of the main results obtained in the firs
t survey of consumers carried out in Brazil on the subject of electric
ity interruption costs. First, the broad idea related to energy restri
ction costs is discussed and the conceptual differences between each k
ind of restriction is reviewed (e.g. interruption costs, deficits cost
s and 'no-billing' costs). The survey methodology is briefly described
and the main results are given. For the sake of comparison, a set of
results from other countries (USA, Canada) are discussed. A numerical
example is given to high-light a practical application. Finally, the c
ombined use of electricity restriction costs is discussed.