Green Hydrogen Pilot Plant Opens in Dubai
Dubai Electricity & Water Authority, Expo 2020 Dubai and Germany’s Siemens Energy’s JV has inaugurated the AED 50 million (USD 14 million) green
Dubai Electricity & Water Authority, Expo 2020 Dubai and Germany’s Siemens Energy’s JV has inaugurated the AED 50 million (USD 14 million) green hydrogen plant at Dubai’s Mohammed bin Rashid al-Maktoum solar park in Dubai in UAE. The integrated facility is developed for electrolysis, storage and re-electrification capabilities. Daylight solar power from the MBR park will enable the pilot project to produce about 20.5 kilograms an hour of hydrogen at 1.25MWe of peak power. The plant has been built to accommodate future applications and test platforms for the different uses of hydrogen, including potential mobility and industrial uses
Electrolysis of water is the separation of water into oxygen and hydrogen using an electric current. A DC electrical power source is connected to two electrodes, which are placed in the water and separated by a Proton Exchange Membrane. The membrane allows the transfer of Hydrogen ions (Protons) produced by the electrochemical water splitting from the anode to the cathode. Protons will recombine with the electrons flowing through an external circuit to produce H2 molecules in gaseous form. Oxygen gas will appear at the anode through this electrochemical reaction. This technology allows the storage of large amounts of energy for long periods. Hydrogen can be used for re-electrification through gas motors, gas turbines and fuel cells. It can also be used as a feedstock for the chemical industry (e.g., ammonia, syn-fuels, green-chemicals, etc.), as fuel for transportation, a reducing agent for the steel industry, to produce heat for industrial processes, or as gas for residential heating and cooking purposes, and also as energy for export.