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Joined 21 days ago
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Cake day: March 22nd, 2026

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  • As a result, all the benefit of wind and solar goes to the people owning the generation capacity, rather than retail utility customers.

    Building out solar/wind still helps the consumer, because reducing the number of days or the number of hours per day the price is set by the marginal fossil fuel kWh will still bring down monthly averages.

    And even for the hours where the price is set by a fossil fuel producer, it’s still generally better for the consumer when that particular hour needs to bid for the cheapest 100 MWh versus 500 MWh that may include even more expensive sources.


  • they could have bought a <$25k used EV last year and saved $4k with the EV tax rebate.

    The people who were in the market for a car last year are by and large not the same people who are in the market today.

    Plus let’s not forget, the actual EVs on the used market 12 months ago were different than today’s. Someone looking to buy a 3-year-old car today has to look for something originally sold in 2023, whereas 12 months ago they were looking at 2022 vehicles, with fewer models available and significantly fewer vehicles actually manufactured and sold.



  • There really was a huge increase in the number of EV models available between model years 2018 and 2023.

    So now, when you’re looking to buy a 3-year-old car, you have so many more EV options to choose from even compared to just 2 years ago.

    You can choose different form factors (small cars, sedans, wagon/crossover/small SUVs, medium SUVs, literal pickup trucks), and basically any price tier from economy to ultra luxury high end.

    Not every ecological niche was filled in the past 5 years, and some still need a bit more competition, but even with some pullback over the last year there are still plenty of new EVs hitting new categories (e.g., true three-row SUVs and minivans) that will feed into tomorrow’s used market.

    And not every model will survive. The future of all-electric full size pickups looks pretty grim. Some entire companies might not survive the EV transition (looking at you, Honda). But overall, the used market will fill out with what was hitting the new market 5-10 years ago, and we’ll start to see a lot of consumer preferences start showing what the future of cars will look like.










  • I think they’re allowed to, but just can’t hook it up to the grid. The Alabama Power fee looks to me like it applies only to generation capacity that is actually connected to the grid, under an interconnection agreement with the utility.

    I can imagine a completely separate circuit, not at all connected to the rest of the electrical system, that only powers things that don’t need grid backup: EV chargers, HVAC equipment, other heating or cooling equipment, etc. You’d probably want a decent amount of battery backup, though, to make the best use of that equipment.



  • It’s possible, but needs to be engineered for safety, and that design/testing/certification will increase the cost and complexity.

    You can have solar panels and a battery totally off grid, where the big battery just acts as a generator, with its own inverter creating AC power for anything you plug in. That’s really simple and cheap, but isn’t safe for connecting to and powering a grid-connected house circuit. So anything you want to power with one of these systems needs to be plugged into outlets that only get their power from these batteries.

    You can add a grid-following inverter that safely matches the grid frequency AC, so that you can use the solar power you collect in your own normal home circuit, to power your own household appliances. But the simplest design here is a grid following inverter that doesn’t work when the grid isn’t connected. It can only add to something that already exists and can’t do things on its own.

    If you want to do both, where it can work without grid power and it follows the grid when the grid power is on, you’ll have to design a system that can switch between the two modes without delivering power where it’s not expected or generating power that conflicts with the grid’s AC waveform. Making it automated, like an UPS system, is even more complicated.

    It’s not impossible, or even that difficult, it just does add complexity and the engineering tradeoff is always the question of “what problem does this solve, and is solving that problem important enough to devote these resources to it?” For anyone on a reliable electric grid where power outages are rare, the answer is usually no.


  • I read the article’s main point as being that waste heat is all around us, and in places that get cold (like the Great Lakes region), that heat can be moved to where it is useful.

    I’m thinking of the brain meme where each level represents something better:

    1. Electric power is used to generate heat in places that need to be heated, using resistive heat.
    2. Electric powered heat pumps move heat from air where it’s not needed to places that do need heat, using heat pumps that draw heat from ambient air.
    3. Heat is transferred from places that actively need cooling to places that need heat.

    The main point in the article is that if we’re using electricity to cool a place while also using electricity to heat a place, can we just use less electricity to move the heat from the place where it’s not wanted to the place where it is wanted?

    So seen in that light, it’s not so much about how much thermal efficiency a power plant achieves, but rather a question about whether there is something better that can be done with that heat that doesn’t become electricity.


  • It might be cheaper in some settings.

    For certain food styles, I buy bulk spices sometimes because I don’t like to pay for an entire jar I won’t use, knowing that most of it will go stale by the time I’m through the jar. Being able to buy tiny quantities is sometimes way cheaper.

    I’m also mismatched in my conditioner and shampoo remaining where I can buy the matching set and let the difference persist, or I can try to buy a single catch-up bottle of whatever I have excess of, to hope that they even out by the time I get to the bottom of a bottle.

    Basically, I can imagine where it might be preferable (for both cost and convenience) to buy an arbitrary amount of something rather than buy a fixed factory container of that thing. I know I already do it for certain things.