Pålsbu Hydro-Power Station, in Buskerud by Manthey Kula Architects

The unique geography of Norway makes hydropower an appealing source of energy, and indeed, 99 per cent of the nation’s electricity derives from this source. Nevertheless, new dams are as controversial here as anywhere else, with the Alta conflict in the 1970s and ’80s a pivotal moment in the nation’s history of hydropower, when the proposed relocation of the Sami people from their ancient territory was opposed by a huge mass movement. Although the Alta Dam was eventually built, subsequently opportunities to exploit existing structures have been eagerly grasped. One such project has been undertaken at the extant Pålsbufjorden Dam, to which a new power plant has been added by Manthey Kula Architects. The turbine hall takes the form of a cogged concrete drum, expressing the motion of the water within.