Solar, wind, and biomass energy are among the alternative power sources used to produce this type of clean hydrogen. The term yellow hydrogen applies specifically to production via solar power.

9. Remove Blood Stains:Spray hydrogen peroxide directly onto the blood stain to remove it from light-colored fabric. Let it ...

while the remaining 10% are categorised as “blue” hydrogen, involving fossil-based production methods with carbon capture utilisation and storage (CCUS), and “yellow” hydrogen uses waste as feedstock.