scholarly journals Economic Value of Improving Natural Gas Supply Reliability for Residential Consumers in South Korea

2019 ◽  
Vol 11 (2) ◽  
pp. 515 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Sung-Min Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
Natural Gas ◽  
Economic Value ◽  
Time Of Day ◽  
Economic Damage ◽  
South Korean Government ◽  
South Korean ◽  
Day Of The Week ◽  
Gas Supply ◽  
Supply Reliability ◽  
Residential Consumers

An interruption to residential natural gas (NG) may cause considerable economic damage of the entire country. Thus, the South Korean government requires information about the economic value of improving residential NG supply reliability for planning NG supply. This article aims to measure the value using a specific case of South Korean residential consumers. The choice experiment (CE) approach was adopted for this purpose. The selected four attributes are the duration of interruption, the season of interruption, the time of day, and the day of the week. The value trade-off works among the four attributes and price attribute were sought and completed in a nationwide CE survey of 1000 households. The respondents revealed statistically significant willingness to pay for a decrease in the duration of interruption, avoiding interruption during winter rather than non-winter, and preventing interruption during off-daytime (18:00 to 09:00) rather than daytime (09:00 to 18:00). For example, they accepted a 0.10% increase in the residential NG bill for a one-minute reduction in interruption during NG supply interruption, a 5.16% increase in residential NG bill for avoiding interruption during winter rather than non-winter, and a 2.94% increase in residential NG bill for preventing interruption during off-daytime rather than daytime. However, they placed no importance on the day of the week. These results can be useful for policy-making and decision-making to improve residential NG supply reliability. It is necessary to conduct a study at regular intervals on the value of NG supply reliability because regarding NG supply reliability, it is difficult to maintain a specific value.

Potential Risks of the Russia-North Korea-South Korea Gas Pipeline

Asian Survey ◽  
2013 ◽  
Vol 53 (3) ◽  
pp. 584-606 ◽  
Author(s):  
Yusin Lee
Keyword(s):  
South Korea ◽  
North Korea ◽  
Liquefied Natural Gas ◽  
Gas Pipeline ◽  
South Korean Government ◽  
Supply Disruptions ◽  
South Korean ◽  
Contingency Plans ◽  
Potential Risks ◽  
Gas Supply

This paper analyzes the potential risks of the Russia-North Korea-South Korea (RNS) gas pipeline, comparing it with the Russia-Ukraine-Europe (RUE) pipeline. I argue that the possibility of disputes is much higher in the RNS case. Furthermore, I propose that the South Korean government opt to import liquefied natural gas by ship directly from Russia if contingency plans in the case of gas supply disruptions in the RNS pipeline are not available.

Small-scale technology solutions to eliminate flaring

2016 ◽  
Vol 56 (2) ◽  
pp. 612 ◽  
Author(s):  
James Brown ◽  
Chiew Yen Law ◽  
Katherine Fielden ◽  
Ceri-Sian Dee ◽  
Neil Pollock
Keyword(s):  
Natural Gas ◽  
Economic Value ◽  
Cost Effective ◽  
Oil Fields ◽  
Small Scale ◽  
Well Testing ◽  
Associated Gas ◽  
Future Technologies ◽  
Gas Supply

Five percent of the world’s gas supply is wasted by being flared or vented into the atmosphere, leading to a huge loss of potential revenue, not to mention a significant impact on the environment. This is equivalent to 150 billion cubic metres of natural gas per year and the release of 400 million metric tons of CO2 equivalent. The industry does this for a variety of valid reasons, including well testing, emergencies, commissioning, maintenance, or simply because an economic solution for capturing and using the gas has not been discovered. Capture of flared gas, therefore, presents an economic and environmentally beneficial opportunity to create new value chains that can benefit not only the industry but also people’s quality of life. This extended abstract draws on a recent DNV GL project to assess existing and future technologies and concepts for capturing small volumes of associated gas that are normally flared from oil fields, both onshore and offshore. The following four technology options that can be used to capture associated gas, convert it, and either utilise the product onsite or transport it to market for consumption are considered. Using more cost-effective ways of transporting natural gas where there is no existing pipeline. Converting gas into products with a higher economic value through chemical processes. Novel concepts—bringing the solution closer to the source of gas flaring. Other solutions. The extended abstract then focuses on cost-effective ways of transporting gas, in particular the use of micro-LNG solutions

Gas Supply Reliability Analysis of a Natural Gas Pipeline System Considering the Effects of Demand Side Management

2021 ◽  
Vol 143 (4) ◽  
Author(s):  
Yichen Li ◽  
Jing Gong ◽  
Weichao Yu ◽  
Weihe Huang ◽  
Kai Wen
Keyword(s):  
Natural Gas ◽  
Demand Side Management ◽  
Gas Pipeline ◽  
Classification Rule ◽  
Pipeline System ◽  
Demand Side ◽  
User Classification ◽  
Natural Gas Pipeline ◽  
Gas Supply ◽  
Supply Reliability

Abstract At present, China has a developing natural gas market, and ensuring the security of gas supply is an issue of high concern. Gas supply reliability, the natural gas pipeline system's ability to satisfy the market demand, is determined by both supply side and demand side and is usually adopted by the researches to measure the security of gas supply. In the previous study, the demand side is usually simplified by using load duration curve (LDC) to describe the demand, which neglects the effect of demand side management. The simplification leads to the inaccurate and unreasonable assessment of the gas supply reliability, especially in high-demand situation. To overcome this deficiency and achieve a more reasonable result of gas supply reliability, this paper extends the previous study on demand side by proposing a novel method of management on natural gas demand side, and the effects of demand side management on gas supply reliability is analyzed. The management includes natural gas prediction models for different types of users, the user classification rule, and the demand adjustment model based on user classification. First, an autoregressive integrated moving average (ARIMA) model and a support vector machine (SVM) model are applied to predict the natural gas demand for different types of users, such as urban gas distributor (including residential customer, commercial customer, small industrial customer), power plant, large industrial customer, and compressed natural gas (CNG) station. Then, the user classification rule is built based on users' attribute and impact of supplied gas's interruption or reduction. Natural gas users are classified into four levels. (1) demand fully satisfied, (2) demand slightly reduced, (3) demand reduced, and (4) demand interrupted. The user classification rule also provides the demand reduction range of different users. Moreover, the optimization model of demand adjustment is built, and the objective of the model is to maximize the amount of gas supplied to each user based on the classification rule. The constraints of the model are determined by the classification rule, including the demand reduction range of different users. Finally, the improved method of gas supply reliability assessment is developed and is applied to the case study of our previous study derived from a realistic natural gas pipeline system operated by PetroChina to analyze the effects of demand side management on natural gas pipeline system's gas supply reliability.

The South Korean public’s evaluation of the mix of power generation sources: A choice experiment study

2019 ◽  
Vol 31 (7) ◽  
pp. 1181-1190 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Seul-Ye Lim ◽  
Seung-Hoon Yoo
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Natural Gas ◽  
Choice Experiment ◽  
Nuclear Power ◽  
Energy Transition ◽  
The South ◽  
South Korean Government ◽  
The Public ◽  
South Korean

The South Korean government is pursuing an energy transition, which means a reduction in nuclear power and coal-fired power generation, and an expansion into renewable energy. This study seeks to evaluate the South Korean public’s preference for a mix of power generation sources. For this purpose, 1000 households throughout the country were randomly selected and a choice experiment survey of them was undertaken in March 2018. We considered four attributes: the ratio of nuclear power, the ratio of coal-fired generation, the ratio of natural gas-fired generation, and the ratio of renewable energy. An increase in the monthly electric bill was also considered as an attribute. The results of applying the choice experiment approach show that households were willing to accept an increase in their monthly electric bill by KRW 192 (USD 0.17) and KRW 165 (USD 0.15) for reducing the proportion of nuclear power and coal, respectively, by 1%p. They were willing to pay KRW 159 (USD 0.14) and KRW 409 (USD 0.38) for raising the ratio of natural gas and renewable energy, respectively, through an increase in the monthly electricity bill. The findings reveal that the government’s energy transition has overall support from the public.

Gas supply reliability analysis of a natural gas pipeline system considering the effects of underground gas storages

2019 ◽  
Vol 252 ◽  
pp. 113418 ◽  
Author(s):  
Weichao Yu ◽  
Jing Gong ◽  
Shangfei Song ◽  
Weihe Huang ◽  
Yichen Li ◽  
...  
Keyword(s):  
Natural Gas ◽  
Reliability Analysis ◽  
Gas Pipeline ◽  
Pipeline System ◽  
Natural Gas Pipeline ◽  
Gas Supply ◽  
Supply Reliability

scholarly journals Analysis of COVID-19 Impact on Natural Gas Supply Reliability

2021 ◽  
Vol 56 (6) ◽  
pp. 994-999
Author(s):  
Yichen Li ◽  
Weichao Yu ◽  
Zihui Han ◽  
Shuang Shi ◽  
Weihe Huang ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Supply ◽  
Supply Reliability

A Systematic Methodology to Assess Hydraulic Reliability and Gas Supply Reliability of the Natural Gas Pipeline Network

2021 ◽  
Vol 143 (4) ◽  
Author(s):  
Weichao Yu ◽  
Jing Gong ◽  
Weihe Huang ◽  
Hongfei Liu ◽  
Fuhua Dang ◽  
...  
Keyword(s):  
Natural Gas ◽  
Indicator System ◽  
Gas Pipeline ◽  
Hydraulic Characteristic ◽  
Market Demand ◽  
Pipeline Network ◽  
Natural Gas Pipeline ◽  
Gas Supply ◽  
Hydraulic Reliability ◽  
Supply Reliability

Abstract Reliability of the natural gas pipeline network is related to security of gas supply directly. According to the different required functions of the natural gas pipeline network, its reliability is divided into three aspects, namely mechanical reliability, hydraulic reliability, and gas supply reliability. However, most of the previous studies confused the definitions of the hydraulic reliability and gas supply reliability. Moreover, the uncertainty in the process of supplying natural gas to the targeted market and the hydraulic characteristic of the natural gas pipeline network are often ignored. Therefore, a methodology to assess hydraulic reliability and gas supply reliability of the natural gas pipeline network is developed in the study, and the uncertainty and hydraulic characteristic of the natural gas pipeline network are both considered. The methodology consists of four parts: establishment of the indicator system, calculation of the gas supply, prediction of the market demand, and assessment of the hydraulic reliability and gas supply reliability. Moreover, a case study is applied to confirm the feasibility of the methodology, and the reliability evaluation results provide a comprehensive picture about the abilities of the natural gas pipeline network to perform the specified gas supply function and satisfy consumers' demand, respectively. Furthermore, a comparison between these two types of reliability is presented. The results indicate that the natural gas pipeline network may not be able to meet the market demand even if the system completes the required gas supply tasks due to the impact of the market demand uncertainty.

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