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Joined 4 months ago
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Cake day: June 5th, 2026

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  • 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.



  • True, that’s what they propose in the article, but it’s not like you get pure wood powder back, it’s a wood-epoxy powder mixture. To which you then add epoxy to make new stuff… at some point you just have a mass of epoxy with traces of wood. That’s downcycling at best.

    Not sure how serious/scientific the author of the article is, as they also propose using the powder as mulch, which sounds like an ecological nightmare when considering that it’s mixed with epoxy. But that might not have been the idea of the engineers who designed the wooden blades.

    I’m not saying this technology is bad, even if the wooden blades get burned in the end at least they are not left as landfill like the ones right now.








  • Yes and no. It is possible for someone earning 70k/year to emit below the average (let’s also keep in mind that the goal is not to be below the average, but to be at 0 emissions/impact), but everything you can buy has a CO2/environment-cost related to it.

    As soon as you spend more, you have a higher impact. Of course there are more and less impactful ways of consumption, so you do raise a good point, but we’re not going to consume our way out of this misery.

    A really nice book I shove down the throat of every single one of my friends who’s not running away fast enough is The Day the World Stops Shopping, in case you have way too much time at hand ^^






  • Then I misunderstood that, but I still don’t agree. The “surplus energy” of the renewables is not really there. Granted, in some regions (not really sure about the USA, though, I don’t have data on that), renewables can provide > 100% of the required electricity for a few hours per day, but that’s not really a lot of surplus energy. If it was, they wouldn’t have to build power plants just for the data centers.

    You even kind of mention that with

    because this demand is outstripping even the excess supply

    Electricity price definitely is a factor for data centers, but having electricity 24/7 is even more important to them. Also, what made AI feasible was the usage of GPUs or even more specialized hardware, that is tailored to those tasks. Machine learning as a concept has been around since the 1980s or even earlier, not just the last 20 years. Paradoxically, that increase in efficiency caused a drastic increase in total power consumption for AI.




  • I also can’t really come up with reasonable uses for excess power, there is only so much a household can use.

    I just looked up the law and it’s even more fucked up than I remember. It only applies to installations with > 2 kWp, so the famous Balkonkraftwerke are not affected.

    As long as you don’t have a smart meter (only about 5% of homes in Germany have a smart meter yet, disregard the 23.3% “Pflicht-Rollout”, they are misleading)), you are only allowed to feed up to 60% of the installed power back to the grid (e.g. if you have 10 kWp installed, and you generate an excess of more than 6 kW, you have to limit its output so that you only feed 6 kW to the grid).

    The regulations for installations with a smart meter also changed, the details are too convoluted for me to really care, but in the end the new law aims to reduce solar power output during “noon”/peak production hours.

    There are several reasons this annoys me, but the worst is, that the grid is not really “overloaded”, it’s mostly just that coal/oil/gas power plants don’t get regulated down as much.

    Take, for example, this months electricity generation in Germany (You can click on the legend below to filter out generation types) - even though solar, wind and biomass is regularly able to provide enough power to meet demand for several hours a day, fossil fuel power plants are running during those times. Even gas, which supposedly is so flexible and only there to provide power when necessary.

    Anyway, this is getting way too long already - the blame is put on solar and renewables, when it is also fossil fuel power plants that are not properly regulated.


  • That’s an interesting concept, sounds similar to the german WG (Wohngemeinschaft), but that’s, to my knowledge, also mostly used by younger people that are still studying or similar.

    Should have mined bitcoin.

    And since we’re already straying off topic, germany “recently” introduced a law where you have to limit rooftop solar production to 60% of the installed peak power (you’re not allowed to feed more than that back to the grid). Now I’m wondering whether I should start mining bitcoin at my parents place, despite my disgust for bitcoin. I’ll have to see whether I can get some E-waste to put together an appropriate rig, I’m definitely not getting new hardware for that, if at all.