Study of the use of biogas as an energy vector for microgrids.

The review presents the current state of the issue about the structural features of microgrids as potential structural elements of energy networks. By analyzing literature data, microgrids incorporating biogas were studied in more detail. It is noted that modeling methods and software computing tools are actively used to obtain optimal microgrid structures. Various options for using biomass in microgrids are shown, methods for integrating biogas plants into microgrids and features of their operation are presented. The role of individual components of a microgrids incorporating biogas has been studied, theoretical models and features of the conversion of biogas into microgrids have been discussed in detail. It is noted that microgrids with a biogas production capacity of up to 5 MWh/day are mainly considered, and the contribution of biogas in microgrids varies in the range of 1–67 % of the total production capacity. Implemented examples of such microgrids are presented and further prospects for their use are outlined. Features of the use of microgrids incorporating biogas, difficulties for their practical implementation and the need for further in-depth study of this issue are noted. It is noted that the use and implementation of microgrids incorporating biogas will contribute to the energy independence of states and their achievement of sustainable development goals. It is expected that the presented review will help specialists more clearly focus on the problematic issues of microgrids incorporating biogas, and the information presented will allow stakeholders to make informed decisions about the choice of power system structure. [Display omitted] • Integrated use of renewable energy sources led to the development of microgrids. • Analyzed the technical parameters of a number of microgrids using biogas. • Biogas in microgrids is used to produce energy, heating, cooling, cooking. • The most demanded are microgrids with biogas production capacity up to 5 MWh/day. • There are several examples of the practical realization of microgrids using biogas. [ABSTRACT FROM AUTHOR]