Much rain, a steep drop and nearness to Bergen meant that the power-making potential of the Samnanger water system was exploited early. Samnanger was thus one of the first power-producing municipalities in western Norway. With its subsequent expansion and new power stations, about 400 gigawatts of electricity per hour were produced on average each year. This is enough to meet the energy needs of 25,000 households.
The fishnet shed at Notaholmen stands as a reminder of the days when people used to row out on the fjord to set their nets. On Notaholmen the nets were dried, repaired and tanned. And it was a great advantage to store them in a place inaccessible for rats and mice.