Gas grid offers potential green power solution

A new project led by Danish TSO Energinet shows that injecting existing gas grids with a certain volume of hydrogen can be done without altering existing infrastructure. The project's results indicate that adding a degree of electrolysis-sourced hydrogen is a feasible storage method and can be utilized for power-to-gas systems, thereby in turn contributing to electricity supply.

From 2 to 12 percent: The TSO's test facility has added increasing volumes of hydrogen with promising results. | Photo: Energinet

Surplus wind and solar power can be converted into hydrogen via electrolysis and stored in natural gas infrastructure – a technology called power-to-gas. It now seems that hydrogen can be added to natural gas grids with minimal system adaption, show results from a project led by Danish transmission system operator Energinet.

Several other domestic players are also involved in the project, including Dansk Gasteknisk Center and IRD Fuel Cells, the latter having replaced company Green Hydrogen during the process.

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