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[-] Chaf@slrpnk.net 1 points 1 day ago

I'm gonna be a bit nit-picky here. You linked the "Low-carbon" source, which includes nuclear energy. Granted, long discussions can be had, whether nuclear counts as green energy, but besides that, I'd argue that nuclear should not be used to generate hydrogen - if at all it should be used the same as hydrogen would be used: to bridge gaps when not enough renewable energy is available.

If you switch to renewables-only in the source just above that graph, the world is, according to latest data (2025), at 33.76% electricity generation from renewables. So when it comes to share of electricity generation with renewables we're on par with sometime around the 1950s. If you switch that graph to absolute generation and fossil fuels, you can see that electricity generation from fossil fuels has not yet started to decline.

On top of all that, this is electricity generation, not primary energy use. For primary energy use we're currently at 8.59% world-wide.

I'm not saying this to make us give in, I'm just saying that there is a long way to go - 100 years are (hopefully) a bit too much, but it's definitely not around the corner. And as an aside maybe also highlight that reductions in (primary) energy consumption are as important as ever.

[-] Skasi@lemmy.world 1 points 1 day ago

nuclear should not be used to generate hydrogen - if at all it should be used the same as hydrogen would be used: to bridge gaps when not enough renewable energy is available

Nuclear power can definitely not fill this role of a fast switching on and off tool, it works most efficient as a steady long term output. Technically it can stop sending electricity to the grid, but that wastes all the heat that keeps being generated and is immensely inefficient. Heat storage in liquid salt seems to be an upcoming thing for nuclear power, but is not used there yet.

this post was submitted on 10 Sep 2026
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