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Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water.
An electrolyser is a device which splits water into hydrogen and oxygen using electrical energy.

When the electrical input comes from a renewable source, hydrogen has no carbon footprint. This is the only practical way to generate a zero carbon fuel supply.

There are many sizes of electrolysers which is dependent on the amount of Hydrogen that is produced by the Electrolyser;

H2 PRODUCTION OUTPUT PRESSURE WATER CONSUMPTION H2 PURITY POWER REQUIREMENT per hour INPUT VOLTAGE TECHNOLOGY USED LIFESPAN HRS Continuous use
1nm3/hr 30bar (437psi) 0.8l/hr 99.940% 4kW AC (240V) or DC AES 10000
2nm3/hr 30bar (437psi) 1.6l/hr 99.940% 8kW AC (240V) or DC AES 10000
1nm3/hr 0-7.9bar (0-115psi) 1l/hr 99.998% 6.7kW AC (240V) or DC PEM 30000
2nm3/hr 0-7.9bar (0-115psi) 2l/hr 99.998% 13.4kW AC (240V) or DC PEM 30000
10nm3/hr 4-10bar (58-146psi) 15-20l/hr 99.998% 54kW 3phase AC IMET 60000
15nm3/hr 4-10bar (58-146psi) 22.5-30l/hr 99.998% 81kW 3phase AC IMET 60000
30nm3/hr 4-10bar (58-146psi) 45-60l/hr 99.998% 156kW 3phase AC IMET 60000
45nm3/hr 4-10bar (58-146psi) 67.5-90l/hr 99.998% 234kW 3phase AC IMET 60000
60nm3/hr 4-10bar (58-146psi) 90-120l/hr 99.998% 312kW 3phase AC IMET 60000
220nm3/hr 4-10bar (58-146psi 200-220l/hr 99.998% 1MW 3phase AC PEM 60000

ActaThe main advantages of Hydrogenics’s electrolysers are:

  • low cost due to absence of noble metals
  • can be connected directly to intermittent power supply (renewables)
  • use with filtered rainwater
  • user-friendly containing no dangerous caustic electrolyte
  • directly compressed hydrogen
  • safe, reliable and efficient
  • easy to integrate