this post was submitted on 06 Feb 2026
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Science Memes

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If God had wanted us to have nearly unlimited clean energy, He would have placed a fusion reactor into the sky. (feddit.org)
submitted 5 months ago by mxeff@feddit.org to c/science_memes@mander.xyz
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[–] A_Chilean_Cyborg@feddit.cl 5 points 5 months ago (4 children)

Idk, my country just inaugurated a gigantic one of these.

Also, fotovoltaic pannels decay with time and have to be replaced, 15 years I think? Their manufacturing isn't also the greenest thing on earth.

You build one of these, and you can run it for a long long time.

[–] drosophila@lemmy.blahaj.zone 28 points 5 months ago

15 years I think

This number gets lower every time I see it.

First, manufacturers typically guarantee their panels for 25 to 30 years.

Second, while we can extrapolate from existing data and perform accelerated aging tests, we're actually not completely sure how long PV panels last in the real world because the oldest ones from 1987 are still going.

[–] asg101@lemmy.blahaj.zone 10 points 5 months ago

fotovoltaic pannels decay with time and have to be replaced, 15 years I think?

much longer: https://www.slashgear.com/1989112/solar-panel-lifespan-longer-new-study/

[–] psud@aussie.zone 8 points 5 months ago* (last edited 5 months ago)

The usual warranty period is 20 years generating 80% of the nameplate generating Watts

They keep generating reasonable amounts of power 50 or 100 years later, though they tend to get overtaken by new technology in 10 to 20 years, and since they pay for themselves in about 4 years in my area they get replaced while still working well

I think we export our obsolete panels to developing nations

[–] untorquer@lemmy.world 7 points 5 months ago

Lies! Well the thermal plant is also fine but photovoltaics are really, really good.

https://www.youtube.com/watch?v=KtQ9nt2ZeGM