The monograph is devoted to physical and electrodynamic methods of studying multilayer structures. The seventh part of the monograph presents the energy characteristics of wave propagation in a conducting medium, across the boundaries of the partition of media with complex parameters, when falling on a conducting plate surrounded by a conducting medium and through multilayer structures. The energy characteristics of the propagation of unidirectional and oncoming waves through single-layer and multilayer structures from an environment with arbitrary complex parameters. are considered. The coefficients of reflection, passage and absorption along wave amplitudes. are obtained. It is shown that the use of traditional definitions of reflectivity and transmittance leads to a contradiction with the law of conservation of energy .. Proposed a new definition of energy coefficients of reflection, passage, localization, reactivity and absorption for environments with complex parameters. The monograph will be useful for students and graduate students of physical specialties of universities and institutes, as well as teachers, engineers and researchers in the field of technical sciences .