What is Power-to-Gas?

Power-to-Gas is a process allowing the surplus electricity produced by solar or wind farms to be turned into hydrogen (H2) by the electrolysis of water.

Water actually contains two hydrogen atoms and one oxygen atom (H2O). The electrical current breaks it down so that the hydrogen molecule can be recovered.

This step can be combined with the methanation process which, by combining hydrogen with carbon dioxide (CO2), results in synthetic methane.

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