The objective of the project is to evaluate and validate the technical and economic relevance of home energy solutions using a natural gas and hydrogen component.

Launched in 2014, GRHYD is a project to inject hydrogen into the territory’s natural gas distribution network in order to meet the needs of the residents of the new neighborhood of Cappelle-la-Grand in terms of heating, hot water and cooking. Approximately 100 homes are supplied with a mixture of hydrogen and natural gas, in variable proportions of hydrogen and less than 20% by volume. The objective of the project is to evaluate and validate the technical and economic relevance of home energy solutions using a natural gas and hydrogen component.

GRHYD is coordinated by ENGIE in association with 10 other partners, it’s supported by the government as part of the Future Investment Program operated by ADEME and labeled by the Tenerrdis competitiveness cluster.

As the first Power to Gas demonstrator in France, GRHYD represents a large-scale demonstration stage, which is the necessary transition between the previous experiments and the ambition of future industrialization of this process.

Inaugurated in 2018, the experimentation ended in 2020.