• Ammonia NH3 • Methanol CH3OH
Hydrogen carrier fuels are available today in many shades of green. They include ammonia NH3 and methanol CH3OH.
They are three to four times more energy dense than pure gaseous hydrogen, meaning they hold more potential power per volume, often making them better suited for transportation and storage. Supported by the fertiliser industry ammonia is the second most widespread chemical available across the world – but today e-ammonia makes up a small fraction of this. The price, availability and greenness of carrier fuels varies by country and will vary overtime. As the hydrogen economy develops, a flexible approach to sourcing hydrogen will offer a cost advantage.