Like many Finns, Panu Kurronen has a cottage in the countryside. His is 80 km from Lappeenranta, where Yaskawa Environmental Energy/The Switch is based, and he goes as often as he can.

"It’s kind of a stereotype," he said of the cottage — and the national tradition of relaxing in a sauna.

But it is not all relaxation. Kurronen has been renovating the place and looks after 20 hectares of land.