Economic Evaluation of Domestic Window Type Photoelectrochemical Hydrogen Production Utilizing Solar Cells

태양전지를 이용한 국내 Window Type 광전기화학 수소생산의 경제성 평가

  • Gim, Bong-Jin (Dankook University, Department of Industrial Engineering) ;
  • Kim, Jong-Wook (Korea Institute of Energy Research, R&D Policy Research Dept.)
  • 김봉진 (단국대학교 산업공학과) ;
  • 김종욱 (한국에너지기술연구원 정책연구실)
  • Received : 2010.08.30
  • Accepted : 2010.12.17
  • Published : 2010.12.31


This paper deals with an economic evaluation of domestic window type photoelectrochemical hydrogen production utilizing solar cells. We make some sensitivity analysis of hydrogen production prices by changing the values of input factors such as the initial capital cost, the solar to hydrogen conversion efficiency, and the system duration time. The hydrogen production price of the window type photoelectrochemical system was estimated as 1,168,972 won/$kgH_2$. It is expected that hydrogen production cost can be reduced to 47,601 won/$kgH_2$ if the solar to hydrogen conversion efficiency is increased to 14%, the system duration time is increased to 20,000 hours, and the initial capital cost is decreased to 25% of the current level. We also evaluate the hydrogen production cost of the water electrolysis using the electricity produced by solar cells. The corresponding hydrogen production cost was estimated as 37,838 won/$kgH_2$. The photoelectrochemical hydrogen production is evaluated as uneconomical at this time, and we need to enhance the solar to hydrogen conversion efficiency and the system duration time as well as to reduce prices of the system facilities.


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