Agricultural and agro-processing production facilities, storage warehouses and logistics centers for the distribution of products require an increase in the efficiency of generation and energy consumption. The authors suggested using ORC technology based on an advanced Li-Br absorption refrigerator with solar collectors and a contact heat exchanger for greenhouse gas capture. The work was devoted to the option of intensifying heat exchange processes in convective chimneys, which will reduce the consumption of natural gas, increase the share of using unconventional and circulating energy resources and reduce the amount of harmful emissions into the atmosphere. The authors showed that the development and application of the technology of energy-technological combination of existing power systems on organic fuel and environmentally friendly “green” technologies for the utilization of the heat of condensation of water vapor of exhaust gases at a certain partial pressure are becoming relevant. The results of the study can also be used to increase the productivity of gas-piston and gas-turbine mini-CHP (combined heat and power) plants and boiler houses of agricultural enterprises. In this article, it is proposed to increase the energy characteristics of steam and hot water boilers while simultaneously improving the environmental situation in agricultural complexes by reducing greenhouse gas emissions into the atmosphere. Most of the triatomic vapors go into the environment, and the disposal of these gases is a complex procedure. In order to increase efficiency, a research methodology was developed, and an analysis of the flue gas cooling method was carried out. The methodology for assessing the possibility of using a flue gas utilization system, in particular contact heat exchangers, Li-Br absorption refrigerating machines, heat pumps and the organic Rankine cycle, in agricultural systems with high energy consumption, as well as at low-power mini-CHP plants, is presented for the first time. This technique is interesting because it can be integrated into the exergoeconomical analysis of the efficiency of using the heat of the soil and groundwater as an energy source.