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Vermont replacing power plants with home batteries

389 points · 304 comments · devonnull

  1. whartung · · focus · HN ↗
    We have this in CA. I have Tesla batteries and they promote wanting me to enroll my batteries into a larger grid so their capacity can be used during higher load events.

    I thought it was a novel idea when I heard about it.

    1. 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...
      1. senectus1 · · focus · HN ↗
        there is something really wrong with the economics of this.

        it shouldnt be celebrated.

        1. beering · · focus · HN ↗
          What is wrong with this?
          1. senectus1 · · focus · HN ↗
            for single individuals to earn as much as (i assume US$) 150 a day means that the grid is horrendously unbalanced.

            hell if I emptied my 30kw into the grid in my state&#x2F;country at the most expensive time I&#x27;d earn AU$21.00

            to earn US$150 means either HUGE battery capacity (and transmission capacity) or utterly rediculous power pricing... both mean really lousy power supply and grid design. I&#x27;m all for indipendance but the reality is we live in communities and count on the collective to rise us all up together.

            that sort of profit is a clear warning sign of a broken community.

            1. ericd · · focus · HN ↗
              California rate payers are being forced to essentially pay for fire insurance for CA residents who live in tinderbox areas, by way of PG&amp;E rates, and burying lines that serve widely dispersed populations. That&#x27;s the big difference. The vast majority of US residents have much lower utility rates.
            2. epistasis · · focus · HN ↗
              It depends a lot on the market, but before there were lots of batteries this was extremely typical in the Australian grid. You probably just weren&#x27;t exposed to it as a consumer! Massive price fluctuations were the impetus for one of the first large scale grid batteries in Australia, and the batteries worked really well to solve it. It doesn&#x27;t happen often, and nobody is getting paid $150 every day for their home battery. It&#x27;s just for the extreme events.

              As more and more batteries are deployed the price swings will decrease.

              It&#x27;s not a &quot;broken community&quot; it&#x27;s just end consumers being able to help out in times of great grid need and getting compensated fairly for it.

            3. Dylan16807 · · focus · HN ↗
              It&#x27;s more efficient for the grid to be very unbalanced every once in a while, rather than building so much it never happens.

              And it&#x27;s not a sign of a broken community. Those batteries aren&#x27;t making all that much money on a per-year basis. And the earlier batteries into the system are going to make the most money. The more batteries that get built the smaller the profits will be and the better the entire grid will be.

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