If you are curious as to whether hydrogen might replace gas one day in our homes, take a look at the latest London Energy Transformation Initiative (LETI) guide, 'Hydrogen: A decarbonisation route for heat in buildings?', available for free here. There is also a webinar recording here.
(Spoiler alert: It is way more efficient to use the renewables on the grid to power heat pumps in homes than make hydrogen. So in short – heat pumps are the answer – hydrogen is not! Save the hydrogen for industry and heavy vehicles.)