page_title: Rjukan–Notodden Industrial Heritage Site
section_title: The move to Notodden
hierarchical_section_title: Rjukan–Notodden Industrial Heritage Site / History / The move to Notodden
caption_attribution_description: Norsk bokmål: Tinfos I kraftverk (nedlagt)
context_page_description: The Rjukan–Notodden Industrial Heritage Site is a World Heritage Site in Vestfold & Telemark county, Norway, created to protect the industrial landscape around Lake Heddalsvatnet and Vestfjorddalen valley. The landscape is centered on the plant built by the Norsk Hydro company to produce calcium nitrate fertilizer from atmospheric nitrogen using the Birkeland–Eyde process. The complex also includes hydroelectric power plants, railways, transmission lines, factories, and workers' accommodation and social institutions in the towns of Notodden and Rjukan.
  This site, along with the Odda–Tyssedal Industrial Heritage Site, was placed on the tentative World Heritage list on 19 June 2009. On 5 July 2015, it was placed on the World Heritage list under Criteria II and IV with the following description of the Outstanding Universal Value:
  Located in a dramatic landscape of mountains, waterfalls and river valleys, the site comprises hydroelectric power plants, transmission lines, factories, transport systems and towns. The complex was established by the Norsk-Hydro Company to manufacture artificial fertilizer from nitrogen in the air.
context_section_description: After creating an adequate process, Birkeland and Eyde founded the Norsk Hydro-Elektrisk Kvælstofaktieselskab (lit. Norwegian Hydroelectric Nitrogen Share-Company) to commercialize it. This undertaking was partially financed by the Wallenbergs, an influential Swedish family. Norsk Hydro also entered into an agreement with Banque de Paris et des Pays-Bas S.A. in 1905. 
  By the time Norsk Hydro secured financing, some of Birkeland's arc furnaces were already present in the Notodden facility, powered by the Tinfos I Hydroelectric Power Station. This station was leased from the company Tinfos AS.  The researchers moved the arc furnace at Vassmoen to the Notodden site in order to test the effect of electric power on fertilizer yield. After determining what type of furnace was the best choice for mass production, Eyde's previous company Elkem was placed in control of the factory.
caption: Tinfos I Hydroelectric Power Station in Notodden, Norway.
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