Eamon Ryan (Dublin Bay South, Green Party) | Oireachtas source

The timeline for the development of our own hydrogen supplies is the end of this decade, but scaling up in the following decade. One of the real questions we have is, where is it likely to be applied? First, it will be in large industrial use, and probably transport next. That is why I keep going back to the Shannon Estuary and Cork Harbour being the potential sites because what we would have to look for in making strategic investment decisions down the line is where would we get the hydrogen production and where would we get the refinery capabilities. There is a limited number of sites for that, usually with a deepwater port and brownfield industrial access sites. It is early in the next decade when we would start to see that happen at scale.