The purpose of this study is to consider a passive balancing system for battery storage which in the future will increase their reliability, reduce maintenance costs, reduce wear and tear and increase service life, as well as to study a new method of quasi-opposition search for harmony in order to stabilize the supplied electricity. To this end, various theoretical methods of scientific study (analysis, concretization, comparison, generalization) were applied. The method considered in this article for improving the performance of batteries using a passive balancing system, using the example of a typical structural diagram of an autonomous hybrid power plant presented here, would increase the efficiency of pre-project work on the development of highly efficient design and circuit solutions and increase the battery life. The new method of quasi-opposition searches for harmony for hybrid power plants based on renewable and traditional energy sources, taking into account features of their design and operation, would make it possible to stabilize the load frequency of the consumer at the time of switching the station between power sources. This study can be useful for the circle of people associated with energy, for students studying renewable energy in higher education institutions, as well as their teachers, in order to familiarize themselves with the problems of hybrid stations and find options for their solutions.