  Relying on the Penrose process mechanism, we study the possibility of energy
extraction from a binary system composed of two extreme electrostatic black
holes (BHs) oppositely charged, separated by a strut described by Bonnor's
metric (BM). We determined and plotted the generalized ergosphere that
surrounds only one of the BH. We demonstrate the existence of non closed orbits
of negative energy outside the event horizon; these orbits allow the
possibility of energy extraction by particle disintegration from a system
described by the BM. Besides we prove that the extraction process can occur
when a charged test particle and the BH have opposite charges; also, we
analyzed the efficiency of the process.
