Norsk bokmål: Tyssedal Power Plant is a hydroelectric power statoin. It is a conservated, technical and industrial heritage in Tyssedal in Odda municipality in Hordaland. The power station was northern Europe's first high pressure systems. The plant is the world's oldest intact surviving high pressure systems. It used a drop of about 400 meters in the lower part of Tyssovassdraget from Vetle water down to Sørfjorden and water tray behind Ringedalsdammen. When the plant was completed in 1918, it was installed 15 units with Pelton turbines totaling 100 MW. The station produced alternating voltage with a frequency of 25 Hz and had an average annual production of 700 GWh. The 15 generators represented in the 1920's about 10% of the total electricity production in Norway. The plant differed not only as a technological cutting edge technology, the architecture and the building's location by the bay is also remarkable. The two architects Thorvald Astrup and Victor Nordan inspiration from Italian churches and cathedrals, and the result is an industrial building that is very strong aesthetic.

It remained in operation from 1908 to 1989. As one of the largest protected plants in Northern Europe, it was protected in 2000.

19. June 2009 Tyssedal power plant with Odda smelting and industrial sites Rjukan / Notodden listed on Norway's tentative list to UNESCO.