Mr. Denis O'Sullivan:

Initially, at least, blending hydrogen into the network will be part of the solution. In due course, we will examine dedicated hydrogen networks to justify it as the volume increases. In the UK, especially, much work has been done on hydrogen and heating, while in Japan, for example, a great deal of work has been done to bring hydrogen into the transport sector. Hydrogen is the fastest growing source of transport fuel in that part of the world and certainly has a bright future in that regard. We hope we can expedite that, and advocate for doing so, but we currently consider the timelines we have set out to be realistic.