https://arstechnica.com/science/2024/07/iters-timeline-for-fusion-stretched-out-even-further/
A project that costs tens of billions of dollars and takes decades to build and the work is divided up among several different countries. Maybe they'll finish it by 2100.
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Video explaining ITER construction
!engineering !ifrickinglovescience
All mega projects are destined to be over the budget because there so many parts and things that can go wrong which are impossible to account in the budget. In the case of ITER they're building an experimental reactor without previous know-how, in other words, they're learning to build a fusion reactor (one which can produce more energy output than it's input) and the biggest problem is with magnetic plasma confinement which our !physics friends can explain better but it's the hardest part to design and build. The more a project get's delayed the more expensive it gets either because of inflation, or because materials price and shipping rises and because you gotta keep paying the contractors during the delays.
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