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Vemork

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Coordinates:59°52′16″N8°29′29″E / 59.87111°N 8.49139°E /59.87111; 8.49139

From Wikipedia, the free encyclopedia

Hydroelectric power plant in Norway

59°52′16″N8°29′29″E / 59.87111°N 8.49139°E /59.87111; 8.49139

Vemork is ahydroelectric power plant outside the town ofRjukan inTinn Municipality inTelemark county,Norway. The plant was built byNorsk Hydro and opened in 1911, its main purpose being to fixnitrogen for the production of fertilizer. At opening, it was the world's largest power plant with a capacity of 108megawatts (145,000 hp).^[1]

Vemork was later the site of the first plant in the world to mass-produceheavy water developing from thehydrogen production then used for theHaber process. DuringWorld War II, Vemork was the target ofNorwegian heavy water sabotage operations. The heavy water plant was closed in 1971, and in 1988 the power station became theNorwegian Industrial Workers Museum.

A new power plant was opened in 1971 and is located inside the mountain behind the old power plant.^[2]

History

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In 1906, the then newly foundedNorsk hydro-elektrisk Kvælstofaktieselskab started construction of what was to be the world's largest hydroelectric power plant. The 108-megawatt (145,000 hp) Vemork power station at theRjukan Falls was the world's largest power plant when it opened in 1911, after four years of construction.^[1] The project was so expensive that the works had to be financed by overseas sources. The plant became the corporate precursor to Norsk Hydro. Ten 6-megawatt (8,000 hp) T/G sets were supplied byVoith andAEG (units 1–5) andEscher Wyss andOerlikon (units 6–10).

In 1911, construction was complete. The plant itself, was built to power a factory producing artificialfertilizer by a new method invented byKristian Birkeland. Later, Norsk Hydro developed and realized another project: the production ofheavy water by means of electrolysis. The company built a unit for producing high concentrations of heavy water at theVemork plant at Rjukan, although for what purpose was not stated. Production started in December 1934.

Heavy water sabotage

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Main article:Norwegian heavy water sabotage

The plant in 1947 or 1948. The heavy water was produced in the front building, the Hydrogen Production Plant.

In 1940, the French Government purchased the entire stock, then available, of heavy water from Norway. The Germans had also offered to purchase it, but the Norwegian Government was told of its possible military use and gave it to a French agent, who smuggled it to France via England. That supply eventually went back to England. (seeTube Alloys#Paris Group)

During the German occupation of Norway inWorld War II, the production of heavy water was judged to be a serious enough threat that at least five separate attacks were launched^[3] in order to prevent the Germans from making anatomic bomb.

On 18 October 1942, four Norwegian SOE (Special Operations Executive) agents were parachuted in on a reconnaissance operation code-named 'Grouse'.
On 19 November 1942,Operation Freshman was conducted by the British as a Combined Operation involving the RAF and the Army, using two Halifax bombers, each towing a glider. Three of these aircraft crashed, and the survivors were captured and executed by the Germans.
In February 1943, SOE's Operation 'Gunnerside' parachuted another six Norwegian agents into the area, to join forces with the four from 'Grouse'. They successfully attacked the Rjukan electrolysis plant on the night of 28 February-1 March 1943, with the loss of 500 kg of heavy water and destruction of the heavy-water section of the plant.
On 16 November 1943, an American air raid took place, but there was minimal damage to the electrolysis building.
On 20 February 1944, a successful attack by Norwegian resistance sank the ferry "D/F Hydro" that was taking a shipment of heavy water to Germany.

It was later discovered that the Germans were not as close to making an atomic bomb as had been initially feared.

Today, the original power plant is an industrial museum. Its exhibitions cover both the heavy-water sabotage operations and the early Norwegian labor movement.

Other media

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A Norwegian movie about the sabotage operation against the heavy water power plant was made in 1948, starring several of the original saboteurs, titledOperation Swallow: The Battle for Heavy Water (USA).^[4]

In 1954, a non-fiction account of the operation by one of its operatives, Knut Haukelid,Skis Against the Atom, was published by Willian Kimber, later revised by Fontana Books in 1973, and then by North American Heritage Press in 1989.

In 1965, directorAnthony Mann made a rather less accurate film version of the story entitledThe Heroes of Telemark,^[5] starringKirk Douglas andRichard Harris.

In 1975, a non-fiction book by Thomas Gallagher calledAssault in Norway was published byHarcourt Brace Jovanovich.^[6] The book's cover states that the book is "the true story of the secret mission that blasted Hitler's dream of an atomic bomb."

Swedish metal band Sabaton put the song "Saboteurs" on the Coat Of Arms album in 2010 which tells the story

In 2003, British survival expertRay Mears made a BBC documentary series and book calledThe Real Heroes of Telemark^[7] giving a more realistic view of the difficulties encountered in the mission to sabotage the heavy-water power plant.

In 2015,Håkon Anton Fagerås made a statue in bronze ofJoachim Rønneberg on commission. It was unveiled byPrincess Astrid in Ålesund.^[8]

In May 2016, a book byNeal Bascomb,The Winter Fortress: The Epic Mission to Sabotage Hitler's Atomic Bomb, was published byHoughton Mifflin Harcourt.^[9] Bascomb also wrote a young adult book,Sabotage: The Mission to Destroy Hitler's Atomic Bomb, published May 2016 by Arthur A. Levine Books.^[10]