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A Study on the Discrepancies of Gas Measurement and the Solution Measures between Suppliers and Consumers in South Korea  

Park, Sang-Chul (Dept. of School of Knowledge-based Technology and Energy, Korea Polytechnic University)
Bang, Sun-Hyuk (Director of Korea Gas Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.14, no.3, 2010 , pp. 26-34 More about this Journal
Abstract
KOGAS, established in 1983 by law to ensure stable gas supply to the public, is responsible for the wholesale distribution to 30 city gas companies that deal with the retail distribution of natural gas in their geographic areas. The gas imported by KOGAS is measured by checking the level difference of LNG shipped in tankers before and after unloading. The analysis of gas composition is essential because the imported gas price is determined by its calorific value. The turbine meter is widely used for measuring the gas sold to city gas companies. Unlike the metering system for power plants, there is no gas chromatograph since the custody transfer of gas to the city gas companies is not billed by calorific value, but by volume basis. The gas quantity that a city gas company has bought from KOGAS is not equal to the quantity that the company sold to its customers. There have been some discrepancies between the wholesale gas meter readouts and retail ones due to some inherent errors of meters and some operational issues of the meters. This paper investigates the controversies regarding the real quantity of gas between distributors and consumers. It will discus and suggest desirable policies, both technically and economically, in order to solve the discrepancies of gas measurement.
Keywords
natural gas; discrepancy; gas measurement; solution measure; LNG market;
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