Part of the energy resources used by most states in the world are exhaustible and their reserves are gradually exhausting, so more and more countries are thinking about switching to alternative sources. The use of biogas is one of such options, and the advantage of this technology is not only obtaining a relatively cheap biogas, but also processing biological waste. The biogas plant is widely used in a number of countries and is gaining popularity in Russia. It can be bought ready-made or assembled from the necessary components using one's own resources. Also there is a huge selection of installations depending on their size: from compact home to huge industrial. Biological wastes processed at the plant can also be different. In the installation in question, in addition to directly biogas, it is possible to obtain a qualitative fertilizer, which in its value is equal to mineral fertilizer. Therefore, the economic benefits of using the biogas plant are undeniable. In this article, we will consider the possibility and economic feasibility of using such an installation in agriculture.