this post was submitted on 06 Feb 2024

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Nuclear fusion reaction releases almost twice the energy put in (www.newscientist.com)

submitted 2 years ago by throwaway389430@lemmy.cafe to c/news@lemmy.world

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[–] aidan@lemmy.world 27 points 2 years ago (3 children)

It's not efficient, a huge amount of it gets diffused or absorbed

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[–] Knock_Knock_Lemmy_In@lemmy.world 21 points 2 years ago (1 child)

It doesn't need to be efficient. Capture all the light that hits earth for 5 minutes and that's the world energy demand for a year.

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[–] pinkdrunkenelephants@lemmy.cafe 5 points 2 years ago (3 children)

How would you store it though?

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[–] rickyrigatoni@lemm.ee 9 points 2 years ago (1 child)

solar george

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[–] bingbong@lemmy.dbzer0.com 2 points 2 years ago (1 child)

Solar Robert

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[–] WalrusDragonOnABike@reddthat.com 1 point 2 years ago

Stéphane Robert

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[–] Cryophilia@lemmy.world 4 points 2 years ago

Black hole

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[–] Knock_Knock_Lemmy_In@lemmy.world 4 points 2 years ago

Usually In plants and algae.

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[–] CosmicCleric@lemmy.world 13 points 2 years ago

It’s not efficient, a huge amount of it gets diffused or absorbed

The amount that's left over though is more than enough, especially with today panels which only convert a very small percentage of that remaining energy.

As the panels improve even more they'll be a very large energy surplus, even with how much solar light actually gets through the atmosphere.

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[–] Furbag@lemmy.world -1 points 2 years ago (2 children)

Wow, you're right! We should just build a Dyson sphere around the sun. 100% efficiency achieved. What could possibly go wrong?

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[–] GojuRyu@lemmy.world 8 points 2 years ago (1 child)

Did you understand the person you respond to as saying its inefficient because the sun shines in other directions than the array proposed?
I'm pretty sure the person talked specifically about the beam from the array to earth being inefficient.

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[–] Furbag@lemmy.world 4 points 2 years ago

I was joking, but apparently nobody picked up on my snarky sarcasm. Disregard.

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[–] aidan@lemmy.world 8 points 2 years ago

Where did I say that?

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