What is needed on planet Earth to produce Hydrogen?
Sun light + Water.
There are more then one way to produce Hydrogen.
Since on Earth there is Water, and Water consist of two Hydrogen and one Oxygen Molecule, Water is a source for Hydrogen.
To split the Hydrogen from the Oxygen Molecule, electrical direct current is used.
The Electrons flow through the water and split the two Molecules, and Hydrogen and Oxygen gas is obtained.
To power the electrical needs, the Sun is the delivery source. The Sun light is fetched via Solar Panels, and converted into direct current.
How can I produce Hydrogen my self?
1. Take a plastic cup
2. Put in tap water.
3. Mix the water with Sea Salt
4. Take a 9 volt battery + put the battery into the cup, in order to have the connectors fully in the water.
Hydrogen will form on the negative pole, Oxygen on the positive pole, as bubbles.
Edit: 2017 08 23