Tech.

Heat-pumps are no longer a single-family home story. From Stockholm’s district networks to a 9,000-flat retrofit in Hamburg, the technology is quietly displacing gas at city scale.

From the dyke road at Hoek van Holland, the two gates lie open against either bank of the Nieuwe Waterweg like the jaws of something that has not yet decided to bite. They are painted a flat industrial white, and at l…

On a cold Tuesday in a Pankow side street, the electrician fitting a heat pump to the back wall of a 1930s terrace pauses over a form he did not have to fill in two years ago. Below the unit's rating plate — nine kilo…

At a bus stop on Waterloo Road, the dot-matrix sign says the 59 is four minutes away. So does the phone of the woman standing under it, and the phone of the man twenty metres on who never looks at the sign at all. The…

On a July afternoon in the inner districts, the difference between two streets is a number you can feel before you can read it. Step out of the shaded courtyard of a Görögkertváros-era block onto the …