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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Hydrogen successfully injected into the German gas grid
An electrolyser has produced hydrogen which has been injected into the German gas distribution network in a significant step forward for a project whose aim is create a viable power-to-gas conversion system, to help with the storage of intermittent renewable energy.
The project, a collaboration between the UK energy storage and hydrogen company ITM Power, Mainova Aktiengesellschaft and Netzdienste Rhein-Main, uses an ITM Power rapid response electrolyser plant to make the hydrogen. The compliance and permitting work has been completed to enable the incorporation of hydrogen into the grid via a compliant mixing plant.
A statement from the project coordinator the Thüga Group said: ‘During the current commissioning phase of the Thüga Group’s power-to-gas demonstration plant, the system injected the first ever electrolytically generated hydrogen into the Frankfurt am main gas distribution network.’
By the end of 2016, the partners hope to have gained experience of how the system works under real-world conditions. The system works with an ITM Power proton exchange membrane electrolyser, which converts electrical energy into chemical energy, which in turn facilitates the storage of electricity.
A gas mixing plant ensures that the proportion of hydrogen in the natural gas stream does not exceed 2% by volume – the technically permissible maximum value when a natural gas filling station is situated in the local distribution network. The electrolyser supplies the hydrogen-methane mixture at the same pressure as the gas distribution network – 3.5 bar – so a compressor is not needed.
News Item details
Journal title: Energy World
Countries: Germany -
Subjects: Hydrogen, Natural gas, Electricity storage
