For autonomous power supply it’s suggested to use microCHP (micro combined heat and power plant) based on the Brayton microturbine with the changed order of processes (reversed Brighton cycle). The paper presents the characteristic ranges of thermal and electric power of autonomous consumers in various climate zones and thermodynamic calculations for the two types of microturbine. In the first case, the parameters of the turbine unit are set according to the characteristics of modern vehicles turbochargers, in the second based on the parameters of modern gas microturbines. The work of microCHP based on the microturbine with the changed order of processes was considered for both traditional and low-temperature heating systems. The electric power of microCHP ranges from 2 to 15 kW, thermal power - from 45 to 160 kW. The peculiarity of MicroCHP is combustion of fuel at atmospheric pressure, which allows the use of natural gas from low-pressure networks, solid fuel, and garbage. It is concluded that this turbine unit is able to solve the problem of electricity and heat supply to most isolated consumers in various climate zones.