Green oxygen: advantages and disadvantages

The water molecule consists of two hydrogen atoms and an oxygen atom (H2O), and during the separation of the latter by the electrolysis process using electric current, it is a chemical process obtained from renewable sources that results in energy without emitting carbon dioxide (CO2).
Advantages
It emits polluting gases, whether defects during combustion or during production.
Easy to store, which allows it to be used later for other purposes and at other indirect times
Versatile: Green hydrogen can be converted into electricity or syngas and used for domestic, commercial, industrial, or transportation purposes
Transportable: It can be blended with natural gas in proportions of up to 20% and use the same gas pipelines and infrastructure
Defects
high cost
High energy consumption
Safety issues

lien : https://www.un.org/ar/observances/ozone-day/science