In 1908 the new power station in Tyssedal was completed. A/S Tyssefaldene provided power for the carbide and cyanide factory that was built in Odda. This signalled a new era.
Having passed well over the bridge across to Sotra you pass an industrial plant surrounded by a budding community; the mineral mill of A/S Norwegian Talc. Some of the buildings seem to have been erected in the early part of the 20th century. They are remnants of a grand industrial plant from the former boom time in the country – the economic upswing after WWI.
As early as 1862 Svein L.Røsseland started a country store and lodging house at Ytre Tysse, and later on he became steamship agent and the first post office manager in Samnanger. However, the decisive change came when F.Mathiessen started A/S Samnanger Uldvarfabrik (woollen factory) in 1886.
Today Tyssedal appears like a classical industrial community, a picture of modern Norway from the turn of the former century until today. A/S Tyssefaldene was established in 1906, and on 1 May 1908 Tyssedal power station was put into operation. The work on the first stage of the facility was completed in a short time, with a work force of 500 men. They built water tunnels, regulation reservoirs, power station, penstocks, harbour, cableways, office buildings, houses and 6 km of power lines in the wild mountains above Odda to provide the new melting plant with power.