Skip Navigation
With self-install solar panels, and a €150 plug-in adapter that feeds power directly into electricity sockets; a DIY home power system is becoming popular in Europe.
  • Agreed, there are engineering challenges. I don’t have such a nice power delivery network yet, just static lines. Also don’t have a separate power station for each device, just by room.

    My gripe is mainly that there are few if any codes for this. I had to follow marine spec to have household DC. I’ll have to remove the secondary system to sell the place, because an inspector wouldn’t know what to make of it.

    The greatest missed opportunities IMO belong to EV and HVAC manufacturers. These are the largest power draws in the common solar household, and both use DC internally, yet few offer any consideration for DC-DC consumption, likely due to the same regulation lag.

    Maybe GaN inverters and power supplies will change my mind, but right now it’s a pet peeve.

  • Trump Legal Team Pins Hopes on Hung Jury
  • This got me good. I’m imagining a bro from Staten Island stuck in a dusty quiet room with bad coffee and New Yorkers from every borough 100% ready to cook.

    He can’t log off. He can’t flee to his safe spaces. He can’t feed himself reassuring 4chan memes. He’s exposed. These are his neighbors. There’s nowhere to run. Will his fear and adoration of a wannabe dictator sustain him? Tune in next week to find out.

  • [US] I'm hesitating launching my own business because I'd lose health insurance for my family. What are my options?
  • If you are a disregarded entity, are not currently and do not in the next 6 or 12 months expect to make enough profit for an AGI above a certain percentage of the FPL, and your state has Medicaid, you can apply for Medicaid with dependents using recent profit and loss reports to substantiate your effective self-employment income.

  • With self-install solar panels, and a €150 plug-in adapter that feeds power directly into electricity sockets; a DIY home power system is becoming popular in Europe.
  • Well it’s not standardized yet to my knowledge, but for example if we used something like the USB-PD protocol it could be a baseline 5 volts, with device negotiated step up to 9, 12, 15, 24, 28, 36, and 48. Higher voltage isn’t out of the question; EV systems safely run closer to 400 and a number of home batteries range up to 600, but I’d be iffy on the idea of the average contractor putting that voltage in the walls of the average home.

    It’s true the copper for longer, higher current, or lower voltage DC runs could get very expensive, but even without HV for distance, thoughtful distribution of storage to expected points of delivery would limit the number of heavy lines needed for current spikes.

    Long short, I’m not talking about switching entirely from AC, or pumping DC power through existing residential circuits. I’m talking about adding a secondary system that’s a more integrated version of the ubiquitous portable power station / “solar generator” batteries. It would be a home modernization upgrade, similar to running Ethernet to PoE enabled jacks in each room, installing a fancy intercom system, or what have you.

  • With self-install solar panels, and a €150 plug-in adapter that feeds power directly into electricity sockets; a DIY home power system is becoming popular in Europe.
  • These micro inverters are a cool near-term portable solution for those looking to dip their toes into home energy storage. Ultimately, I hope we see residential DC electrical become more commonplace soon. That will make the grid integration that this tackles a non-issue for most (i.e. those who aren’t selling their excess solar capacity) but will ultimately be simpler and more efficient for the grid as a whole.

    The average home has only a few devices left that still use AC internally (mostly large or old appliances) and home storage systems lose energy to power conversion overhead in both directions at multiple stages. Since each conversion represents a loss of up to 20%, the AC standard introduces an increasing amount of unnecessary friction close to the point of delivery.

    Illustration: if your home charges from the grid, that’s one conversion AC —> DC. If you then use that power to charge an electric vehicle, that’s two additional conversions AC —> DC —> AC —> DC (currently few EVs support DC charging unfortunately). If you then charge your laptop in the car using the official charger, that’s two more conversions AC —> DC —> AC —> DC —> AC —> DC. Altogether this requires about 3x as much power than necessary with residential DC electrical, since then the power can go from solar to storage to car to laptop without the need for power inverters.

  • Massive issues with sleep and desperate for a solution.
  • Go camping together. Nothing fancy, just a weekend at a park with a small tent and backpacks.

    Let your team know you’ll be unreachable. Once there, phones off. No working. Just walk and talk, rest and eat, explore your surroundings, focus on what and who is in front of you.

    You may not sleep well on night 1, but you will on night 2, especially if you covered some ground that day. The morning after night 3, however, will be the most well-rested you’ve felt in a some time. The effect carries to subsequent nights, then eventually wears off, but can give you the chance to restructure your days for better sleep in the long term. Use as needed.

  • Polisci
  • My colleague in physics doesn’t understand quantum complexity, but I couldn’t tell you much about condensed matter, and we both know little of our political science colleague’s work modeling rational agents.

    We try not to diss eachother in print.

  • Same day shipping
  • […] verbally abused, then physically assaulted […]

    Agree, just a note: the verbal part was already assault. The physical part was battery, a separate offense that often isn’t required for a charge of simple assault. Any act that causes reasonable apprehension of harm is assault. Verbal threats with hate speech would easily qualify.

    Info worth passing along I think, since many don’t realize physical contact is in fact the second criminal offense, and aggressive behavior itself is the first.

  • How can you push agendas if you don't have one?
  • In case you’re interested, NB as an umbrella term is pointedly not restrictive.

    A common misconception is that it’s the traditional third-option to M/F, like neuter or gender-neutral, but it’s usually more about flouting the rules of gender than avoiding gender expression entirely.

    For example, I’m gender non-conformist, a type of non-binary. I tend to borrow gender expression indiscriminately and switch it up when it gets boring. While subtle forms of gender rebellion are my cup of tea, I don’t care about pronouns and never changed my name. You can’t really misgender me, and that’s fairly common among NB folks I’ve met.

    So yes, in theory Yakko Wacko (whoops) can easily be the NB Warner Brother. He could just wear dresses or makeup in some episodes and be considered demonstrably NB, but even that isn’t a strict requirement.

  • Do you think the good in Humankind can prevail?
  • It has. Often. More often than not, in fact. But not always, everywhere, and for everyone. Sometimes good does not prevail, but that tends to increase the chance it will again.

    The trend of good’s prevalence is a matter of history. It’s been called the zeitgeist (Hegel) which evolves over time, a trajectory we can evaluate in hindsight.

    In particular, knowledge, the value of life, our collective moral understanding and enumeration of human rights all trend upward over time.

    But if by “prevail” we mean a kind of universal perfection, where all forms of suffering are eradicated and only joy and pleasure remain, then no, good cannot prevail. If it did, good would cease to exist, denied its fundamental nature as an evolving concept.

  • Exercise bike that can store 2KWh of electricity
  • True, I only included kJ equivalent because some countries use kJ on nutritional panels instead of Calories. Actual conversion rate of human energy stores to usable power is, at a guess, more like

    Calories * 0.25 * 0.6 * 0.8 - dt

    where t is time, d is the self-discharge rate of the battery, 0.6 is the efficiency of the generator, and 0.8 is the efficiency of the battery.

    So, user better eat their wheaties.

  • InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)SE
    Septimaeus @infosec.pub
    Posts 0
    Comments 253