Ingenieur Vol 76 ingenieur 2018 October | Page 64

INGENIEUR Hydrogen Based Economy – Are We Ready? By Assoc. Prof. Dr Anwar Johari, Dr Mimi Haryani Hassim Institute of Future Energy, Universiti Teknologi Malaysia T he Hydrogen Economy refers to the use of hydrogen in delivering energy. The elements of a hydrogen based economy are similar to that of the conventional fossil fuel based systems where issues such as production of hydrogen, deliver y, storage, conversion technolog y, applications of such systems, safety issues, codes and standards dominate the feasibility and sustainability of the hydrogen based economy. The vision of Hydrogen Economy stems from the need for clean energy, which is energy that does not pollute the environment. The concept has been around for quite some time but has been hampered mostly by economic reasons and relatively little understanding of the benefits of this system. It took decades for the transition from a coal based energy system to the current fossil fuel based one and it is expected that the scenario will not be much different for the hydrogen based economy. The world’s energy landscape is now in transition from a carbon based system to a hydrogen based economy. Leading the way is Japan with its ambitious plans and vision for the creation of a Hydrogen Society. Such a transition requires appropriate planning and solid support from policy makers, public and industry players. Hydrogen and fuel cells are seen as the key solutions to the world’s growing concerns about energy security, energy supply and environmental issues especially greenhouse gas emissions. Malaysia is blessed with a large amount of fossil fuel reserves and it will still remain the dominant energy source for some time to come. 6 62 VOL 2018 VOL 76 55 OCTOBER-DECEMBER JUNE 2013 Nonetheless, efforts in securing other sources of energy, particularly renewable energy, are on- going and actively supported by many Government policies. Hydrogen economy comes into the picture by providing a sense of security to the nation’s energy mix. The Government has also committed to a 40% reduction in the emission of greenhouse gases by 2020 compared to the levels in 2005. The use of hydrogen in fuel- cell systems has proven to be a source of clean technology where the system converts chemical energy from hydrogen rich fuels into electrical power and only emits water as its by-product. The technology has been commercially available but its use is not widespread due to economic consideration, lack of infrastructure and public awareness. Nevertheless, it suits the aspirations of the Government despite the need for a strategic roadmap and the long haul transition to a hydrogen economy and to minimise any disruption to the existing eco-system. The economic point of view is always the deciding factor in any business venture. The production of large quantities of hydrogen for the purposes of transportation and power generation via fuel-cell technology is a very challenging task. In Malaysia, the commercial application of fuel cells in transportation and power generation is non-existent except in some small scale demonstration projects by local universities. Hydrogen itself does not exist naturally but is produced from other sources like biomass and fossil fuels in a steam reforming process and also by splitting water through electrolysis.