  The possibility in principle of the existence of Casimir electromotive force
(EMF) is shown for nonparallel nanosized metal plates arranged in the form of a
periodic structure. It is found that EMF does not appear in strictly periodic
structures with parallel plates. However, when the strict periodicity is
disturbed in nonparallel plates, EMF is generated, and its value is equal to
the number of pairs of plates in a configuration. Moreover, there are some
effective parameters of the configuration (angles between plates, plate lengths
and length to length ratios), at which the EMF generation per unit of the
length of the periodic structure is maximal.
