Hydrogen storage (whether in metal vessels or underground including salt caverns) is a key enabler for the advancement of hydrogen and related fuel cell technologies throughout the world. Cost effective hydrogen storage is required to support the use of hydrogen in current and future industrial applications including transportation, portable and stationary power. While hydrogen has the highest energy per mass of any fuel, its low ambient temperature density results in a low energy per unit volume. This makes it important to develop advanced storage methods that have potential for higher energy density.
Physically, hydrogen can be stored as either a gas or a liquid. Storage of hydrogen as a gas typically requires high-pressure tanks (350–1000 bar tank pressure). Storage of hydrogen as a liquid requires cryogenic temperatures because the boiling point of hydrogen at one atmosphere pressure is −252.8°C.
Howden has extensive experience in offering cost-effective compression solutions for the hydrogen storage across different applications. Our solutions offer our customers exceptional performance, high availability and reliability which result in reducing the total cost of ownership of their operations.