Halsnøy Monastery is situated in the midst of the lush fjord country in Sunnhordland, on one of the old spits, or “necks”, that has given name to the island. Gently sloping fields lead down to the sea on both sides, in the south towards the Kloster Fjord, to the north towards the sheltered Klostervågen.
Tveiti sawmill in Herand is probably the last water-powered sash-saw in the country that has been in regular operation up to our time. There has been a sash-saw here since the 1700s, and on the other side of the river there are remains of an even older saw.
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 large coastal waves that crash down on the islands west in the sea gather their energy from storms and winds all the way out in the North Atlantic Ocean. The most common place of origin is nonetheless the North Sea. When these waves break over the skerries and islets along the shore, or on the rocky outermost islands, their energy is released. This takes the form of turbulence in the water and sea spray up on land. Can the enormous energy contained in the waves be exploited?
As early as 1906 the Matre and Haugsdal waterway was bought up by the businessman Blauuw from Bergen; the first “waterfall speculator” in the Matre area. He immediately resold it to Fr. Hiorth, who transferred all the rights to the company Matrefaldene in 1908. Behind A/S Matrefaldene were German interests, Badische Anilin und Sodafabrik, which wanted to start production of saltpetre fertilizer with nitrogen and electricity.