this post was submitted on 28 May 2025
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(page 3) 11 comments
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[–] [email protected] 250 points 1 week ago (26 children)

What is this publication and who finances it because this section is incredibly sus:

Copper use is not carved in stone. Hybrid cars, which pair small batteries with gasoline engines, need far less of the metal than fully electric vehicles.

Power grids that mix nuclear, wind, solar, and a pinch of natural-gas backup can slice the copper bill dramatically compared with battery-heavy systems.

“First of all, users can fact-check the study, but also they can change the study parameters and evaluate how much copper is required if we have an electric grid that is 20% nuclear, 40% methane, 20% wind, and 20% hydroelectric, for example,” Simon said. “They can make those changes and see what the copper demand will be.”

Like you think we can transition to an increasingly electrified world, where all power comes from electric utility lines, and you think our copper usage will be ... just in renewable power plants?

This reads like straight fossil fuel propaganda. In an electrified future the majority of copper use comes from distribution lines and products that use electricity not the type of power plants generating electricity.

[–] [email protected] 61 points 1 week ago (6 children)

I'm not defending the article, but I think most overhead power lines are aluminium, which is probably good as it's abundant compared to copper.

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[–] [email protected] 12 points 1 week ago (4 children)

I remember when phone lines were made of copper. We were sure that it would be impossible for everyone to have a phone.

[–] [email protected] 11 points 1 week ago

Only in first-world countries did everyone have a phone and the Earth's population was half what it is now.

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[–] [email protected] 23 points 1 week ago (3 children)

Perhaps it’s time to start researching alternative materials.

[–] [email protected] 40 points 1 week ago (4 children)

That alternative material is aluminum. It's like a top four abundance material in the crust. It's just super fucking hard to refine from minerals that don't like to give it up without oodles of energy. Like, turn minerals into plasma levels of energy. So the irony is, to grow our energy economy past the need for copper, we will first need to grow our energy economy.

Should fusion ever actually meet its promise, then this is one of the likely things we could do with this level of energy.

If we ever become a spacefaring civilization, it'll almost certainly be necessary during the colonization of other planets/moons/asteroids, since the geological processes that concentrate copper on the earth are not present in those places. Whereas aluminum is plentiful any place rocky.

[–] [email protected] 21 points 1 week ago (2 children)

Recycling aluminum, however, is much more energy-efficient!

[–] [email protected] 15 points 1 week ago

Very true. However, it doesn't add new material to the equation. If we need it to build electrical infrastructure, recycling won't suffice.

Recycling aluminum is actually literally the best thing you can recycle in terms of environmental impact and cost efficiency. There are other things we recycle, but nothing pays off nearly as well.

[–] [email protected] 4 points 1 week ago

Recycling? What about the mining economy? We're going to need our investors in order to make it to Alpha Centauri.

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[–] [email protected] 11 points 1 week ago (4 children)
[–] [email protected] 4 points 1 week ago

Drone miners with streaming cameras yes please

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