The current problem of searching for the optimal structure of equipment of energy
sources with a high level of technical and economic indicators is based on the construction
of the redundant scheme. A description of the mathematical formulation of this problem
is given, methods are proposed for solving it, based on the preliminary formation
of the redundant scheme, including various options for equipment for energy sources.
For the construction of redundant circuits, the methodical approach to the problem
being solved is adapted on the basis of P-graphs.