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The research deals with problems of animal waste potential usage in order to produce biogas for energy generation in Ukraine. Although there are favorable conditions to develop biogas sector based on animal waste, the share energy, produced from it, is extremely low. The paper analyzes energy potential of agricultural biomass in Ukraine, economic tools, aimed at stimulating electricity generation from biogas based on animal waste, the results of their impact on biogas plants deployment. Among a number of barriers, which inhibit the development of this sector in Ukraine, the main ones are the need for significant initial investments to construct profitable biogas plants and a large amount of raw materials for their uninterrupted operation. Given the fact that 48.2% of farm animals are concentrated in small-scale farms and households, which cannot individually implement biogas projects, it is proposed to combine their financial and raw material resources within energy co-operatives. Economic benefits, which may be gained by small-scale farms within energy co-operative through the sale of electricity, generated from biogas, by feed-in tariff are calculated. It is discussed that in addition to economic benefits for small-scale farms owners, realization of the co-operative model in the bio-energy sector will let to obtain a number of ecological and social benefits both for territorial communities, and the state as a whole. International Journal of Sustainable Energy Planning and Management, Vol 18 (2018)

The relevance of this study is to solve the basic task for society to ensure sustainable management by improving the spatial management system of natural resource assets, increase their usage efficiency and ensure sustainable socio-economic development of Ukraine on this basis. At all levels of the state government, there appeared a need to ensure spatial management and transform the organizational structure of natural resource management on the basis of the introduction of a modern system of territorial natural entities with the change of relevant functions, mechanisms and powers in the direction of increasing the ecological and economic effect in various spheres of economic activity. Aim of the research: identification of the highest priority, to ensure sustainable management in resource constraints, the composition of threats and risks and their grouping; development of a closed scheme of permanent clarification of the most important, for spatial sustainable development, threats and risks. The methodological basis of the study is the work of domestic and foreign scientists on spatial management of natural resources, sustainable spatial development and economic security, regulations, analytical and statistical materials of ministries and departments, international organizations, other scientific and information materials. The study involves the use of a number of interrelated methods, including methods: analysis and synthesis; system analysis; economic and mathematical; expert assessments; graphic, etc. The scheme of grouping of organizational and economic mechanisms of realization of spatial model of management of sustainable management within a certain state formation is constructed. According to which a universal, for three stages of implementation of the corresponding type of macro- model (initiation, consolidation, incorporation) spatial management of sustainable development, algorithm is developed. The use of the latter involves: continuous grouping and identification of the most significant threats and risks (in a closed cycle of management, organizational and economic, forecasting, analytical and econometric procedures); development of measures to eliminate the consequences of turbulent shifts.

The article is aimed at researching priority sectors of investment in the energy sphere. The share of global investments in electric energy, oil, gas, development of renewable energy sources, and also in energy efficiency is analyzed. It is indicated that global investments in energy sector have decreased somewhat, in particular the investments in renewable energy sources have reduced the most. Energy investments of the world countries where the largest investors are the countries with the developed economies, namely China and the United States of America, are researched. Investment trends in the energy sector of both developed and developing countries are defined. The role of renewable energy sources in increasing access to electricity and promoting investment in electric energy decentralization technologies is allocated. The general investments and investments of the exchange market in renewable energy sources are analyzed, their priority sectors are defined. The risks that can reduce investments in energy in general and in renewable energy sources in particular are indicated.

Sustainability is a concept and practice within the plans for managing of people, organizations, corporations and even governments for the common development path of the present and future generations in the process of search of a better quality of life. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/30876

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Chowdhry, M. u hammad Aslam Uqaili, Design and implementation of intelligent energy efficient conveyor system model based on variable speed drive control and physical modeling, International Journal of Control and Automation 9 (2016) 379\u2013388. URL: https://doi.org/10.14257/ijca.2016.9.6.36. doi:10.14257/ijca.2016.9.6.36"]} The article considers the synthesis of an optimal discrete control algorithm for the conveyor belt speed, based on the use of Time-Of-Use tariffs. Methods have been investigated that reduce the consumption of electricity required to transport material from the extracted place to the place of processing. It is shown that the uneven distribution of material along the transportation route for long multi-section conveyors leads to a significant increase in the share of transportation costs among the total costs of material extraction. The systems for controlling the flow parameters of the transport system are analyzed to ensure uniform distribution of material along the transport route and reduce the cost of transporting material. It has been demonstrated that energy management methodology is an effective tool to reduce the cost of material transportation. Analyzed the common classes of tariffs using electricity by industrial enterprises, which can be successfully used in the design of control systems for flow parameters of the conveyor line. When synthesizing algorithms for regulating the speed of the belt, the model of primary friction and the assumption of the absence of a stress wave in the belt during instantaneous switching of the speed modes were used. An analytical model of the conveyor is presented in a dimensionless form, taking into account the transport delay. The problem of optimal control of the speed of the conveyor belt at fixed energy consumption for the considered control interval is formulated. The ranges of variation of the model parameters are estimated. An algorithm for optimal regulation of the belt speed using the coefficients Ukraine – TOU periods is synthesized. The influence of the initial conditions on the belt speed control modes is analyzed.

Ukraine is an agricultural country with great agricultural potential for biogas production, which is the key to fertile soils and favorable climatic conditions for energy crops, including corn. The article analyzes the experience of using biogas in Ukraine and the world, its mechanism of production. The leader in biogas production in the world is the European Union in general and Germany in particular. The total number of biogas plants in Europe exceeds 11 thousand, of which 7.2 thousand in Germany. Іnstalled biogas, which is released in the process of complex fermentation of organic waste, consists of a mixture of gases: methane – 55–75%, carbon dioxide – 23–33%, hydrogen sulfide – 7%. An important sector of renewable energy sources in biogas production is presented and the prospects for its use are determined. The energy dependence of our country on the volumes of imported natural gas is analyzed. The main aspects of biogas production are explored using renewable energy sources that are inexhaustible in our crane and the phased operation of the biogas plant is investigated. The real advantages of the need for biogas production and use in our country are outlined. Problems aimed at the development of alternative energy have been proved in order to detect environmental pollution. It has been established that in Ukraine the use of corn silage to improve the efficiency of biogas production at existing biogas stations has not been used so far. The problems of increasing the yield of corn plants have been proved not only by breeding and genetic methods, but also by cultivation technology.

The observed growth of aviation economy sector leads to increasing final energy consumption by both the air transport and airports. Nowadays, airports by their level of energy consumption are comparable to small towns with populations up to 50,000, which are integrated into the structure of megacities and urban areas.Comprehensive assessment of ener gy efficiency of aviation economy sector must include effectiveness of operation and maintenance of air transport services, ground services and efficiency of energy consumption by airport’s terminals and facilities. For reliable forecasts of energy costs and adequate decision-making, it is required to improve a system analysis. A hierarchical system “Sustainable Airport” is offered as a methodological approach to reduce energy consumption and CO2 emissions by improving energy and fuel efficiency.The key levels of hierarchical system “Sustainable Airport” are considered. An intelligent platform based on Smart technologies for air terminals, engineering processes, and related services in airports is proposed as a part of system’s tech nical level.

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