Specific actions relating to hydrogen are set out in the Annex of Actions to the Plan and include testing the technical feasibility of safely injecting green hydrogen blends in the gas grid, assessing the potential for system integration between the electricity and gas networks, which will include the production, storage and use of green hydrogen, and progressing research and pilot studies regarding the use of hydrogen in the transport sector. There are also a number of other actions, such as those concerning renewable energy in the heat sector, where hydrogen is a relevant factor.