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Joined 1 year ago
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Cake day: July 9th, 2023

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  • What is the breaker box in your analogy? Breaking legs?

    lol I meant a [circuit] breaker box (aka power/ac panel, breaker panel, distribution board, etc)

    So how do you suspend a license that the guy didn’t have?

    It’s just a minor legal misnomer. If a defendant happens to not have a driver’s license in the first place, suspension could be more accurately termed “prevention.” Logistically speaking, the state probably just generates a stub file/account with a valid license number then just adds the suspension to that empty driving record.





  • 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.


  • 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.


  • 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.