It also covers all forms of energy saving such as district heating in cities – something I hope for warmly, the right word in the circumstances. In fact, a lot of energy can be saved with district heating, because a single boiler can heat the homes of ten, twenty, a hundred, a thousand city dwellers.
On peut économiser beaucoup d'énergie avec le chauffage urbain, parce qu'une seule chaudière permettrait de chauffer les habitations de dix, vingt, cent, mille personnes.