During electrolysis, water molecules are broken into their constituent parts using QSI nanometal (such as Nano Ni) electrodes to produce Oxygen (O2) and Hydrogen (H2). The Hydrogen can be used to power Fuel Cells (See How Hydrogen Creates Electric Power In A Fuel Cell); the oxygen can be stored or vented as desired. In this diagram, the electrolysis process is powered by Solar Panels made using Nano Ni, but conventional sources of electricity may also be used.

• Enhanced Performance Characteristics:
• Direct, Low-Cost Replacement for Platinum Catalyst, Huge Surface Area and Greater Surface Energy Combined Equals Orders of Magnitude Increase in Reactive Performance, Green Method of Generating Hydrogen Fuels.
  
• Uses:
• Generates Pure Hydrogen Cheaply
  
• QSI-nano™ materials used:
• Nickel
• Proprietary Alloys

Nanonickel can be made into electrodes (as a platinum replacement) for the electrolysis of water into its component elements (hydrogen and oxygen). 

• The only by product that is generated from this process using the nanonickel electrodes is heat. 
• No greenhouse gases are generated, unlike steam reformation of hydrocarbons which produce 4 lbs. of carbon dioxide for every 1 lb. of hydrogen produced (and this is for methane, the most efficient hydrocarbon for hydrogen generation by steam reforming).

Water electrolysis can be used to generate hydrogen from sea water which can then be stored (liquefied or as a compressed gas) and used to power fuel cells which generate electricity and fresh water as a by product.