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Cake day: August 21st, 2024

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  • the article is wrong, it’s not been debated yet. it’s been put forward by the government but hasn’t passed the riksdag. it’s expected to go into effect in july because new laws in sweden always go into effect in january or july.

    Edit: also note that the bill runs contrary to the findings of the committee formed to investigate the possibility, which means support will not be unanimous within the government coalition.


  • …huh? this was last year. it’s not decided on yet, mainly because they have yet to provide a definition of “honest living”. the only news from this week was that they want it to work retroactively, which basically every lawyer instantly struck down. it could make it fail even harder.

    Edit: nevermind it being from this week, state media reported on it at the end of january. the term to look up, for those interested, is the swedish for “non-honest living”: “bristande vandel”












  • you can use an anaerobic digestion system to generate about 100 liters of gas a day, given that you feed it around a liter of 50/50 food scraps and water slurry. you can heat a stirling engine with it to generate 2-300W or so.

    it’s not risk free of course, biogas is explosive, but taking precautions can minimize it. produce and store outside, under low pressure, limit the volume, and use filters and flame arrestors.

    this video is a good intro to the subject.


    another interesting avenue if you have access to cheap wood is syngas. you can run clean syngas in a unmodified internal combustion engine, so the generator part is easy. clean gasification is the hard part, since you need to get rid of the tar and water content. using charcoal is the best method because all that gunk is already burned off. you put it in an airtight container with an inlet and an outlet, light it at the inlet, and pump in a controlled amount of air. the charcoal then goes through a redox reaction and produces syngas at the outlet.

    a syngas generator can produce roughly 10x the energy of a biogas plant of the same size, but involves high temperatures and more preprocessing.

    here’s a video on that too.


    lastly, what’s more important to you? lowering your bills or being energy independent? my housing co-op has a deal with a local electricity company where they installed a load-following battery bank in our basement. it tracks the energy market so it can charge at night, be used by us during the day, and sell the surplus to the grid. it has lowered our energy bills by about a third. a lot less messy than the other two solutions, but also a lot less independent. doesn’t really matter for our situation, since we’re on district heating as well, but your situation may be different.




  • oh i did this with an iceboat as a kid. the speeds you can get up to are insane. i don’t know if the wheeled ones have as low friction as the ones on skates but the learner model i tried easily got up to 80-100km/h without me doing anything. one of the coolest things i’ve ever done.