Power to Gas

August 2020

One intriguing idea for how to store excess energy produced by renewable sources for when it is needed is power-to-gas technology. It converts electricity into hydrogen via electrolysis, which is then introduced into the natural-gas network.

Measuring over 500,000 kilometers, the German gas pipeline network has enormous storage potential. That’s the thinking of Stuttgart’s Netze BW, the largest electricity, gas and water utility in the southern German state of Baden-Württemberg. It’s taking part in a pilot power-to-gas project.

“Our natural gas distribution network can also transport a mixture of natural gas and hydrogen consumers can use just as easily as pure natural gas,” explains Netze BW Technological Director Martin Konermann.

The mixture delivered in the project contains thirty percent hydrogen.

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