Thüga Power-to-Gas Plant

The plant converts electrical energy into chemical energy and thus facilitates the storage of electrical energy and is deployed in Frankfurt am Main.

Thirteen companies of the Thüga group have combined their know-how and capital in a project platform to jointly invest in the development of Power-to-Gas storage technology. The focus is on testing the practicality of Power-to-Gas technology.

Absorbing excess renewable energy to generate hydrogen gas to de-carbonise gas networks.

The project is supported by the Hessian Ministry for the Environment, Energy, Agriculture and Consumer Protection. Following the first phase of the project, the participants are considering a second project, which would use hydrogen and carbon dioxide to produce synthetic natural gas to be subsequently stored.

The plant converts electrical energy into chemical energy and thus facilitates the storage of electrical energy. The gas mixing plant ensures that the mixture of hydrogen in the gas distribution network does not exceed 2% by volume.That means, when too much power is on the electrical grid, at the request of the transmission system operator (TSO), the load of the electrolyser will be increased. In this case, the plant absorbs the excess power and converts it into hydrogen. This also contributes to the stability of the electricity grid.

At the end of 2013, the plant injected hydrogen for the first time into the Frankfurt gas distribution network becoming the first plant to inject electrolytic generated hydrogen into the German gas distribution network. Final acceptance of the plant was achieved at the end of March 2014, which reflected the timely achievement of all milestones set.

Inside a ITM Power HGas unit

Dr Simon Bourne, Chief Technology Officer, ITM Power inside the
Thüga Group’s Power-to-Gas plant in Frankfurt am Main, Germany

Thüga Power-to-Gas Inauguration Ceremony

Project partners
Badenova AG & Co. KG, Erdgas Mittelsachsen GmbH, Energieversorgung Mittelrhein GmbH, Erdgas Schwaben GmbH, ESW E Versorgungs AG, Gasversorgung Westerwald GmbH, ITM Power plc, Mainova Aktiengesellschaft, Stadtwerke Ansbach GmbH, Stadtwerke Bad Hersfeld GmbH, Thüga Energienetze GmbH, WEMAG AG, e-rp GmbH and Thüga AG
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