Britain likes to tell itself that large-scale infrastructure change has become too difficult: too slow, too fragmented, too politically fraught. But there is a forgotten story that challenges that assumption. In just a decade, Britain converted millions of homes and businesses from town gas to natural gas, replumbed expectations about what heating could be, and built the foundations of modern domestic warmth. Clean Heat by 2040 begins with that history and asks a powerful question: if Britain managed one heat revolution before, why not another?
This is what gives the story its force. It is not really about nostalgia for the old gas age. Quite the opposite. It is about remembering that whole-house warmth, central heating, and reliable energy did not simply appear on their own. They were built through public purpose, long-term investment, coordinated planning, and a system designed around ordinary people’s lives. Britain moved from the age of one warm room to the age of the heated home because the country decided to organise change at scale.
That matters now because the next heat transition is already pressing in on us. Gas is expensive, volatile, and environmentally damaging. Yet much of the alternative is still presented as if every household must solve the problem alone: choose the right technology, find the money, manage the disruption, and carry the risk. This story pushes back against that logic. It argues that clean heat will only happen at the speed required if it is treated once again as infrastructure, not as an individual consumer project.
The vision set out here is practical and system-based. Instead of continuing to burn gas in millions of separate buildings, Britain could use heat networks to connect homes and workplaces to larger, cleaner heat sources: waste heat from industry, energy-from-waste plants, data centres, rivers, mines and sewage works, supported by thermal storage, heat pumps, and renewable electricity. The diagrams on pages 11 and 13 make that future tangible, showing heat transmission “highways” linking districts, towns, and major sources of surplus heat into something much more strategic than today’s scattered schemes.
What makes the story persuasive is its realism about institutions. It does not argue for a crude replay of the past, but it does insist on learning from it. The shift from town gas to natural gas worked because government legislated, financed, coordinated, and protected consumers from the upfront burden. The same principle applies now: people are far more likely to accept change when it arrives as a reliable service – simple, affordable, and clearly organised – rather than as a technical and financial burden dumped on individual households.
There is even a glimpse of how this could happen in practice. The examples of Dutch public-interest heat planning and the Danish town of Holbæk show that a gas-dependent place can move, street by street, towards district heating without chaos or abstraction. It can be phased, structured, and rooted in everyday utility delivery.
That is what makes this such a strong and timely story. It reminds us that clean heat is not an impossible future technology problem. It is a question of ambition, coordination, and whether Britain still believes it can build systems that make life better. The country has already transformed the way it keeps warm once. This argues that it can do so again.
