The gas corporation supply management office lowers the natural gas sent from the production base at high pressure to low pressure. The natural gas temperature lowered in the decompression process is heated through a heater and then supplied to the consumer.
In the past, energy due to the pressure difference was wasted during decompression(60 barg -> 8.5 barg). However, KOGAS is conducting research on 'reduced pressure power generation' that uses reduced pressure energy to produce electricity, In addition, with the support of the Ministry of Trade, Industry and Energy, Trigen-fuel cells (electricity, heat, and hydrogen production), contributes to the temperature rise of natural gas and produces electricity and hydrogen to operate a complex energy hub including a hydrogen filling station., is in progress. Through research projects, we aim to improve the efficiency of unused energy and contribute to the national renewable energy policy and supply of hydrogen charging stations.

• Fossil energy is gradually being depleted due to the finite nature of resources, and is emerging as a serious environmental pollution source. As a result, the need for renewable energy to replace them is rapidly emerging.
• Among renewable energy, hydrogen does not emit environmental pollutants and can be converted into energy storage and other forms of energy. For this reason, hydrogen is attracting attention as a future energy source.
• Since 2000, KOGAS has been engaged in research and development related to hydrogen production from natural gas and fuel cells by developing renewable energy technologies.
  ※Fuel cell : A high-efficiency evergy conversion device that uses hydrogen to convert chemical energy into electrical energy(power generation device)
• Development of a hydrogen production device that produces hydrogen from natural gas, empirical research on a hydrogen charging station that supplies hydrogen to fuel cell vehicles, and research on the supply of fuel cells for homes and development of fuel cells for buildings of several tens of kW to establish the basis for supplying fuel cells for buildings, etc. is being actively promoted. Based on this result, we plan to play a leading role in the development and supply to hydrogen/fuel cell technology in the future.

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    Household fuel cell installation (Prime Minister’s office)

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    Hydrogen charging station and HCNG bus

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  Household fuel cell system overview