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Vermont replacing power plants with home batteries

389 points · 304 comments · devonnull

  1. thelastgallon · · focus · HN ↗
    Or they could use EVs. Require cars to have V2X (Vehicle to Grid, Vehicle to Load) feature. EV batteries are humongous.
    1. 0cf8612b2e1e · · focus · HN ↗
      As a consumer, would you want the extra usage on your battery? Those extra cycles have to cause some additional degradation to the system, but I do not know how much.
      1. _aavaa_ · · focus · HN ↗
        How much would I get paid?
        1. 0cf8612b2e1e · · focus · HN ↗
          Net metering rates are pretty poor, so I would guess not much outside of extreme grid instability. Although, you then might want to selfishly hoard the juice for yourself.
          1. eunoia · · focus · HN ↗
            It would not be selfish to run your home off the car battery during peak rates and therefore cutting peak demand on the grid. Everyone wins.
            1. 0cf8612b2e1e · · focus · HN ↗
              Depends on the nature of the agreement and the need for energy. In a load shedding event, the power company may want to cut useless residential consumers so as to prioritize hospitals. From a maximal good perspective, it is better that the hospital is running than I get to run my AC when the grid is straining.
        2. thelastgallon · · focus · HN ↗
          Tesla Electric customers report making as much as $150 a day: <a href="https:&#x2F;&#x2F;electrek.co&#x2F;2023&#x2F;07&#x2F;05&#x2F;tesla-electric-customers-report-making-150-day&#x2F;" rel="nofollow">https:&#x2F;&#x2F;electrek.co&#x2F;2023&#x2F;07&#x2F;05&#x2F;tesla-electric-customers-repo...

          Car batteries are significantly larger than powerwall.

      2. nicoburns · · focus · HN ↗
        &gt; As a consumer, would you want the extra usage on your battery?

        I feel like this is likely going to be a non-issue in practice. Because these batteries are rated to last at least 10 years either way. And by that time, the cost of replacement will be dramatically cheaper.

        1. bluefirebrand · · focus · HN ↗
          &gt; Because these batteries are rated to last at least 10 years either way

          They are rated to last at least 10 years (under X usage conditions)

          They won&#x27;t last nearly that long under Y usage conditions if Y is substantially larger than X

          1. nicoburns · · focus · HN ↗
            They&#x27;re rated to last that long under a full charge-discharge cycle per day. You won&#x27;t be using them more than that unless you&#x27;re doing something really crazy.
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