Just repurposing that gas used for heating to generating electricity for heat pumps is a big step forward, delivering more heat for less gas and synergises well with wind and batteries which further reduce gas usage.
Gas boilers are now the leading source of NOx pollution in London since they've made so much progress on traffic sources.
Well sure, but if the premise is that we're going to replace everything with solar and batteries, that one's the hard one.
Whereas heat pumps powered by nuclear reactors work pretty well, if you could get the cost of nuclear reactors under control by getting mass production going.
Gas boilers are now the leading source of NOx pollution in London since they've made so much progress on traffic sources.