Forms of city gas supply system and development of natural gas market in China

Author(s):  
Zhanying Ren ◽  
Renshu Yang
2021 ◽  
Vol 2021 (1) ◽  
pp. 25-37
Author(s):  
Roman Yukhymets ◽  
◽  

The article considers the main reasons that have led to the debt crisis in the natural gas market of Ukraine due to the accumulation of debt from gas supply and gas distribution companies. The purpose of the study is to identify the main prerequisites for the formation of debt in different segments du-ring the reform of the natural gas market through partial implementation of the requirements of European energy legislation. Having chosen the European vector of development Ukraine is interested in meeting the requirements of European policy within the framework of its international obligations and aspirations for European integration. This necessitates adaptation of the national institutional environment to the basic requirements of the Second and Third energy packages. According to the existing international obligations, the national natural gas market is undergoing significant changes towards liberalization and development of competitive environment. However, in the segment of retail market and supply of natural gas to household consumers for a long time the necessary changes in the institutional environment did not occur or temporary decisions were made, which did not contribute to solving the sector’s crisis, but only froze the existing model of relationships between various market participants. Reluctance to implement unpopular solutions in the supply of natural gas to household consumers and attempts to shift the increase in the cost of gas supply tariffs for the needs of the household consumers to other categories of consumers led to a constant redistribution of monopolistic influence and accumulation of significant debt between market participants. The article analyzes the causes of debt between various participants in the retail segment of the natural gas market, which makes it possible to identify the main factors of such debt. These factors include: the lack of a sufficient level of transparency in the tariff for natural gas supply and transportation services; the absence of a 100% accounting for various categories of consumers, which makes it necessary to establish consumption standards, which later become the object of significant abuse; the existing model of public service obligations, which, given the significant redistribution of natural gas, results in significant market distortions; and the imperfect approach to calculating the costs of gas distribution companies in terms of temperature coefficients in the tariff, provided that gas metering exists not in energy units, but in cubic meters. Based on the results obtained in the article, the author sets forwards various recommendations for the implementation of measures, whose main content is to eliminate the institutional prerequisites that lead to the risks of market failures, which may cause debt.


2021 ◽  
Vol 2021 (1) ◽  
pp. 32-48
Author(s):  
Roman Yukhymets ◽  
◽  

The article considers the main reasons that have led to the debt crisis in the natural gas market of Ukraine due to the accumulation of debt from gas supply and gas distribution companies. The purpose of the study is to identify the main prerequisites for the formation of debt in different segments during the reform of the natural gas market through partial implementation of the requirements of European energy legislation. Having chosen the European vector of development Ukraine is interested in meeting the requirements of European policy within the framework of its international obligations and aspirations for European integration. This necessitates adaptation of the national institutional environment to the basic requirements of the Second and Third energy packages. According to the existing international obligations, the national natural gas market is undergoing significant changes towards liberalization and development of competitive environment. However, in the segment of retail market and supply of natural gas to household consumers for a long time the necessary changes in the institutional environment did not occur or temporary decisions were made, which did not contribute to solving the sector’s crisis, but only froze the existing model of relationships between various market participants. Reluctance to implement unpopular solutions in the supply of natural gas to household consumers and attempts to shift the increase in the cost of gas supply tariffs for the needs of the household consumers to other categories of consumers led to a constant redistribution of monopolistic influence and accumulation of significant debt between market participants. The article analyzes the causes of debt between various participants in the retail segment of the natural gas market, which makes it possible to identify the main factors of such debt. These factors include: the lack of a sufficient level of transparency in the tariff for natural gas supply and transportation services; the absence of a 100% accounting for various categories of consumers, which makes it necessary to establish consumption standards, which later become the object of significant abuse; the existing model of public service obligations, which, given the significant redistribution of natural gas, results in significant market distortions; and the imperfect approach to calculating the costs of gas distribution companies in terms of temperature coefficients in the tariff, provided that gas metering exists not in energy units, but in cubic meters. Based on the results obtained in the article, the author sets forwards various recommendations for the implementation of measures, whose main content is to eliminate the institutional prerequisites that lead to the risks of market failures, which may cause debt.


2019 ◽  
Vol 6 (2) ◽  
pp. 56-63
Author(s):  
L. D. Pylypiv ◽  
І. І. Maslanych

There are investigated the influence of operating pressures in the gas supply system on the level of such energy indicators as efficiency, gas flow and gas overrun by gas equipment in residential buildings. There is established a relationship between the values of operating pressures in the gas supply system and the gas consumption level of household appliances. The causes of insufficient pressure in the gas networks of settlements are analyzed in the article. There is also developed an algorithm for calculating the change in the efficiency of gas appliances depending on the operational parameters of the gas network. It has been found that the most efficient operation of gas appliances is observed at an overpressure at the inlet of gas appliances of about 1200 Pa.To ensure the required quality of natural gas combustion among consumers and minimize gas consumption there are justified the following measures in the article: coordinating a domestic regulatory framework for assessing the quality of natural gas with international norms and standards; improving the preparation of gas coming from local wells before supplying it to gas distribution networks; auditing low pressure gas pipelines and reconstructing areas affected by corrosion; ensuring standard gas pressure in the network for the normal operation of domestic gas appliances; stating quality indicators of natural gas combustion by gas sales organizations.


2019 ◽  
pp. 64-72
Author(s):  
G.G. Arunyants

The results of analysis of problems of regulation of gas supply complex of Kaliningrad region and main ways to increase its efficiency, as well as basic solutions for creation of a software complex Т-GAZ-2 automated calculation of natural gas tariffs for ACS of gas supply system subjects, geographically distributed and information connected to the regional automated information and control system (RAIS).


Energy Policy ◽  
2021 ◽  
Vol 155 ◽  
pp. 112380
Author(s):  
Jian Chai ◽  
Xiaokong Zhang ◽  
Quanying Lu ◽  
Xuejun Zhang ◽  
Yabo Wang

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