Potential of renewable hydrogen production for energy supply in Hong Kong

Meng Ni, Michael K H Leung, K. Sumathy, Dennis Y C Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

219 Citations (Scopus)


Hong Kong is highly vulnerable to energy and economic security due to the heavy dependence on imported fossil fuels. The combustion of fossil fuels also causes serious environmental pollution. Therefore, it is important to explore the opportunities for clean renewable energy for long-term energy supply. Hong Kong has the potential to develop clean renewable hydrogen energy to improve the environmental performance. This paper reviews the recent development of hydrogen production technologies, followed by an overview of the renewable energy sources and a discussion about potential applications for renewable hydrogen production in Hong Kong. The results show that although renewable energy resources cannot entirely satisfy the energy demand in Hong Kong, solar energy, wind power, and biomass are available renewable sources for significant hydrogen production. A system consisting of wind turbines and photovoltaic (PV) panels coupled with electrolyzers is a promising design to produce hydrogen. Biomass, especially organic waste, offers an economical, environmental-friendly way for renewable hydrogen production. The achievable hydrogen energy output would be as much as 40% of the total energy consumption in transportation.
Original languageEnglish
Pages (from-to)1401-1412
Number of pages12
JournalInternational Journal of Hydrogen Energy
Issue number10
Publication statusPublished - 1 Aug 2006
Externally publishedYes


  • Hydrogen production
  • Renewable energy
  • Renewable hydrogen

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment


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