Frequently Asked Questions
What is hydrogen?
Hydrogen is the most abundant element in the universe and is 14 times lighter than air, making it the lightest atom on Earth. Hydrogen has two main characteristics: it is invisible and odorless. Hydrogen emits no CO₂ while burning, and it can be produced 100% from green electricity. Hydrogen can be stored as a gas under pressure, typically at 350 bar or 700 bar, or as a liquid when cooled down to -253°C.
