

Germany's Wildly Complex Fusion Reactor Is Actually Working

The Wendelstein 7-X reactor, which uses a complex design called a stellerator, is performing just like it was predicted to.

Wendelstein 7-X Nuclear Fusion Reactor
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Last year, Germany completed and turned on the Wendelstein 7-X nuclear fusion reactor. This amazing piece of technology uses a complicated design called a stellerator, and scientists have finally managed to verify that the design works like it's supposed to.

Nuclear fusion is a reaction like the type that powers the Sun and other stars. Unlike the nuclear fission underway at our current nuclear plants, fusion generates far more energy without any harmful waste products. Theoretically, fusion reactors are capable of producing nearly limitless energy using nothing but seawater as fuel.

Theoretically. Fusion requires the kinds of temperatures and pressures found inside the cores of stars, and generating those conditions on Earth is extremely difficult, which is why the tech seems perpetually five or ten or twenty years away. Most designs involve giant magnets and lasers and can get complicated, to say the least.


The standard design of fusion reactor is called the tokamak reactor, and it involves a ring of magnets that force the nuclear material to travel in a large circle. The stellerator design used by the W7-X reactor adds several twists to the ring to increase stability.



Unfortunately, current fusion reactors, including the W7-X, are still not efficient enough to produce more energy than they use. However, the success of W7-X gives the researchers hope that the next generation of fusion reactors will be able to reach that limit.

Source: ScienceAlert

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