Qualla: HVDC DolWin2 https://qualla.com/hvdc-dolwin2 en-us © 2026 Bendyline Mon, 20 Jul 2026 10:21:34 GMT Qualla serial false Qualla support@bendyline.com yes https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/hero-small.webp Qualla: HVDC DolWin2 https://qualla.com/hvdc-dolwin2 HVDC DolWin2: Introduction https://qualla.com/hvdc-dolwin2/ Photo credit Sten Dueland from Haugesund and Stavanger, Norway, CC BY-SA 2.0. DolWin Beta was built on the wrong side of the world. The platform — a 23,000-tonne steel topside that would eventually anchor Germany's second DolWin grid connection — took shape inside the Drydocks World yard in Dubai, far from any wind farm or salt-stung Northern coast. It crossed three seas, was fitted out at the Aibel yard in Haugesund, Norway, then sailed itself into position in the German Bight on 1 August 2015 using a floating, self-installing design no one had tried before on an HVDC project. Ten days later, it was the most powerful offshore converter platform in the world.

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Image: Sten Dueland from Haugesund and Stavanger, Norway | CC BY-SA 2.0

]]> Sun, 17 May 2026 00:00:00 GMT https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/u1sg-hvdc-dolwin2-intro.mp3 0:06 1 full HVDC DolWin2: A Globalised Piece of Infrastructure https://qualla.com/hvdc-dolwin2/ Photo credit Sten Dueland from Haugesund and Stavanger, Norway, CC BY-SA 2.0. The supply chain is worth pausing on. The platform was designed by Aibel, a Norwegian company whose roots are in offshore oil. It was fabricated in the United Arab Emirates by Drydocks World, a Dubai government-owned yard that had spent decades building offshore vessels for the G...

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Image: Sten Dueland from Haugesund and Stavanger, Norway | CC BY-SA 2.0

]]> Sun, 17 May 2026 00:00:00 GMT https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/u1sg-hvdc-dolwin2-a-globalised-piece-of-infrastructure.mp3 0:06 2 full HVDC DolWin2: The Self-Installing Trick https://qualla.com/hvdc-dolwin2/ Photo credit Sten Dueland from Haugesund and Stavanger, Norway, CC BY-SA 2.0. Most offshore platforms are lifted onto fixed jackets by purpose-built heavy-lift vessels — slow, expensive operations that depend on calm weather and tight scheduling. DolWin Beta dispensed with that ritual. The platform was floated to its position on its own buoyancy, then lowe...

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Image: Sten Dueland from Haugesund and Stavanger, Norway | CC BY-SA 2.0

]]> Sun, 17 May 2026 00:00:00 GMT https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/u1sg-hvdc-dolwin2-the-self-installing-trick.mp3 0:06 3 full HVDC DolWin2: 900 Megawatts, Three Wind Farms https://qualla.com/hvdc-dolwin2/ Photo credit Sten Dueland from Haugesund and Stavanger, Norway, CC BY-SA 2.0. Once handed over to TenneT in 2017, DolWin2 became the gathering point for an entire neighbourhood of turbines: 332 megawatts from Gode Wind I, 252 megawatts from Gode Wind II, and 332 megawatts from Nordsee One — a combined 916 megawatts of generating capacity, more than DolWin2...

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Image: Sten Dueland from Haugesund and Stavanger, Norway | CC BY-SA 2.0

]]> Sun, 17 May 2026 00:00:00 GMT https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/u1sg-hvdc-dolwin2-900-megawatts-three-wind-farms.mp3 0:06 4 full HVDC DolWin2: What Direct Current Solves https://qualla.com/hvdc-dolwin2/ Photo credit Sten Dueland from Haugesund and Stavanger, Norway, CC BY-SA 2.0. It is worth understanding why all this trouble was worth taking. AC transmission over long subsea distances loses power to capacitive charging — past about 80 kilometres the losses become prohibitive. HVDC eliminates that problem by sending current in one direction, but it requir...

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Image: Sten Dueland from Haugesund and Stavanger, Norway | CC BY-SA 2.0

]]> Sun, 17 May 2026 00:00:00 GMT https://qualla.com/_m/u/1/s/g/hvdc-dolwin2-wp/u1sg-hvdc-dolwin2-what-direct-current-solves.mp3 0:06 5 full