Green hydrogen is made through the electrolysis of water powered by renewable electricity. Green hydrogen reduces carbon emissions to zero when replacing fossil fuels in processes of hard-to-abate sectors.

We use electrolysers to produce our green hydrogen. There are a number of different electrolyser technologies (e.g. Proton Exchange Membrane (PEM) electrolyser, Anion Exchange Membrane (AEM) and Solid Oxide Electrolyser (SOEC)) at different levels of maturity. We currently use PEM electrolysers and continue to review the most suitable technology for each project.

We supply green hydrogen for hard-to-electrify processes to:

• displace grey hydrogen in existing industrial process. For example, using green hydrogen in the Haber-Bosch process to produce ammonia.
• displace other fossil fuels in existing industrial process. For example, replacing coke with green hydrogen in the direct reduction of iron (DRI) process, part of the production of iron and steel.
• displace other fossil fuels in existing process. For example, combining green hydrogen with biogenic carbon dioxide in the Fischer-Tropsch process to produce e-kerosene (or sustainable aviation fuel).
• play a bridging role from natural gas to electrification for medium and high temperature heating. This is where the economics are not currently viable or the electrification technology is immature.

HYRO commits to only supply green hydrogen and is happy to share with customers the data showing the carbon intensity of the electricity used in the production process. The UK is developing a low carbon hydrogen certification scheme to give confidence to companies buying hydrogen in the UK.

In the UK, green hydrogen will cost at least the month ahead natural gas price, when it is subsidised under the Hydrogen Production Business Model.

The Hydrogen Production Business Model (or HPBM) is a type of Contract for Difference that pay a subsidy to hydrogen producers as the difference between the cost of producing low carbon hydrogen and the price they can sell this hydrogen for.

We generally develop green hydrogen projects as part of the UK’s Hydrogen Allocation Rounds (HAR). The HAR process tends to take a year and a half to conclude with a subsidy contract awarded to successful projects at the end. Construction is then expected to take approximately 18 months, depending on the size of the project. These timelines are subject to change and we would discuss your optimal timeline with you when starting the development process.