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Annotation The thermal and thermodynamic calculation of closed and open loop individual systems of coal preparation at TPP with different types of mills reveals the possibilities of increasing the efficiency of the technological scheme by utilizing the heat removed from the system and thus increasing the thermodynamic efficiency.

Nowadays renewable energy sources are actively promoted as the most sustainable types of power to drive electricity generation of the future. Distributed generation with the use of wind turbines, solar panel, and biological fuel may become an answer to the numerous challenges which large power grids are facing. But integration of renewable energy based generation facilities requires not only availability of special technical means but also establishing of new types of trading patterns and platforms are necessary. This article provides the concept of smart billing system which allows to involve single households to the progressive type of energy consumption and generation and creates the new type of energy system and market participantprosumer. Two types of billing approaches are suggested for households equipped with renewable energy sources based generation facilities. The first one implies that generated energy is consumed by the household itself and the second one implies that surplus of generated energy is sold to the grid. As calculation has shown the first pattern is beneficial for small facilities which in overall don't have a large surplus in generation over consumption. And the second one is beneficial for those who generate more than they consume.

Modern trends in the development of technology are based on the need for experimental studies of the equipment being developed in laboratory conditions with the maximum approximation of the operating modes to real ones. Such studies are impossible without the development of specialized stands with test automation systems. Automation of processes involves the organization of measuring channels as part of a stand using analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), digital-todigital conversion (DDC) and the development of a hardware-software complex (HSC) based on high-speed computing devices. As part of the project to create new high-tech equipment, the specialists of FSBEI HE “KSPEU” and JSC “ChEAZ” developed and created an experimental stand designed to verify and confirm the correctness of the selected structural and circuit solutions used in the design of a synchronous valve electric motor (SVEM) and rod control station borehole pumping unit (RC SBPU). The object of experimental research was the prototype and prototype electric drives of oil pumping units, as well as their components: SVEM and RC SBPU. The article discusses the ways of organizing the measuring and control channels of the measuring and information system of the experimental bench, which allows to study samples of synchronous valve motors and control stations of the sucker rod pump unit in the regimes that are as close as possible to real field conditions simulating the operation of the oil pumping unit of the sucker rod pump unit. Thus, in the experimental stand, analog, discrete and digital control and control channels are implemented.

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