Hydrogen is:
- is the lightest element in the periodic table - fourteen times lighter than air; 1 Nm3 (normal cubic meter) of hydrogen gas weighs 90 grams;
- is colourless, odourless, and non-toxic;
- is not an energy source, but an energy carrier;
- can be produced of a wide variety of resources;
- has an enormous capacity for energy storage, even in small quantities;
- can be stored
