Hydrogen could be billed as a “fix all” for the world’s energy problems. Used with renewable power it is zero carbon, and it has numerous applications across power, transport, industrial use, space heating and energy storage. Widespread adoption of hydrogen could also mean that natural gas has a long-term place in the energy system, while also providing a new lease of life for existing gas infrastructure. However, it is also expensive to produce and use in the current energy system and as a result, is struggling to make significant headway without subsidy. Gas Matters speaks to Graham Cooley, CEO of UK-based ITM Power, which supplies hydrogen and power-to-gas systems to projects across Europe, about the economics of hydrogen in today’s energy system, and the challenges of rapid growth.