this post was submitted on 05 Jun 2026
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Commonwealth Fusion Systems (CFS) has verified the core plasma physics assumptions for its upcoming ARC fusion power plant following a peer-reviewed study published in the Journal of Plasma Physics.

The research confirms the ARC reactor design aligns with known physics, allowing the company to shift its focus toward detailed hardware engineering...

According to the validated models, the ARC plant will produce approximately 1.1 gigawatts (GW) of fusion power to generate 400 megawatts (MW) of net electricity for the grid...

CFS engineers are using this simulation framework to optimize upcoming design iterations, adjusting dimensions like tokamak width and divertor length to refine reactor performance before manufacturing begins.

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[–] ramble81@lemmy.zip 1 points 2 weeks ago (2 children)

So that’s, what, a 36% efficiency? What are the values of some other sources such as nuclear and solar. Or am i misunderstanding the values supplied?

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[–] DarrinBrunner@lemmy.world 1 points 1 week ago

1.1 Jiggawatts? Pshaw, not even one lightning bolt.

[–] TheDemonBuer@lemmy.world -3 points 2 weeks ago* (last edited 2 weeks ago) (18 children)

Extremely complex and expensive engineering and technology development for 400 MW of net electricity generation. Why not just build a 400 MW solar farm (with battery shortage, of course)? There's a massive, natural fusion reactor in the sky blasting the Earth with petawatts of energy every day, for absolutely free.

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