I have no idea about smaller cables but HV power cables (grid / offshore renewables etc) are consistently designed and produced using aluminum conductors. If you want to get really fancy I think you can even buy them with aluminum produced from geothermal power in Iceland (could just be an industry story though).
Not saying it’s not a problem but may not be as challenging as thought (and in debt-financed infrastructure land the price stability of aluminum is as much of a benefit as its low cost).
duskwuff•17m ago
(The same appears to be true of everything else on the site. The graphics for the "2000 Dot-Com Bubble Burst" article highlighted in the sidebar are particularly sloppy.)