• teyrnon@sh.itjust.works
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    6 days ago

    The article doesn’t explain the battery, making it a bullshit site if you ask me, here is what they are talking about:

    https://en.wikipedia.org/wiki/Vanadium_redox_battery

    'The vanadium redox battery (VRB), also known as the vanadium flow battery (VFB) or vanadium redox flow battery (VRFB), is a type of rechargeable flow battery which employs vanadium ions as charge carriers.[5] The battery uses vanadium’s ability to exist in a solution in four different oxidation states to make a battery with a single electroactive element instead of two.[6]

    For several reasons, including their relative bulkiness, vanadium batteries are typically used for grid energy storage, i.e., attached to power plants/electrical grids.[7] ’

    • Echo Dot@feddit.uk
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      6 days ago

      I don’t think I understand any better what the battery is then I did before. As per usual Wikipedia sucks at explaining concepts that you don’t actually already understand.

      • SirEDCaLot@lemmy.today
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        6 days ago

        Here’s the short version.

        A normal battery is a sealed cell. It has a positive and negative electrode, with an electrolyte between them. Usually many layers of this. When you charge it, a chemical change happens. When you discharge it, that chemical change is undone.

        A redox flow battery uses fixed electrodes, but a liquid electrolyte that can be pumped and stored. This means you can increase overall storage capacity simply by adding more electrolyte tanks, without needing more electrodes. Think of it like a generator with a bigger gas tank.

        The whole vanadium thing is just one of the metals used in the battery. There’s a few kind of redox flow batteries using different chemistries

        • teyrnon@sh.itjust.works
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          6 days ago

          Also there are hundreds of chemical combinations that produce electricity that we know about, and only a handful have been worked on for batteries. As reported in Harper’s Magazine many years back, that is not indexed to enshitified search engines, because fuck you (us, google, et al talking.)

          • Knock_Knock_Lemmy_In@lemmy.world
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            6 days ago

            The downside is that does batteries are not be energy dense. Perfect for grid storage but useless for car batteries (where the bulk of battery R&D money goes).

          • SirEDCaLot@lemmy.today
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            6 days ago

            Yes exactly. If you need more total capacity you add more tanks, if you need more instantaneous output power you add more electrodes. And thus you can scale either one without messing with the other.

      • teyrnon@sh.itjust.works
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        6 days ago

        Yeah wikipedia is hit or miss, especially as technical people like to show off their fancy words and explain things in ways only technical people understand.

        But it’s Vanadium, and you can look that up elsewhere. The first large industrial vanadium battery (if I recall,) was some years back, I think in WA State.

        • Sylvartas@lemmy.dbzer0.com
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          6 days ago

          If I really want to feel stupid, I go to the Wikipedia article for some simple maths concept I thought I understood

          • frongt@lemmy.zip
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            6 days ago

            Yeah I think people who enjoy math and formulas and proofs also enjoy writing Wikipedia articles in the same way. I usually go to the Simple English Wikipedia for any math topics. And I got as far as calc 2 in college, so I’m no ignoramus.

      • Aniki@feddit.org
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        6 days ago

        source: wikipedia (link above)

        As per usual Wikipedia sucks at explaining concepts that you don’t actually already understand.

        but it’s true, i have encountered exactly this phenomenon many times :/

    • Vex_Detrause@lemmy.ca
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      6 days ago

      If I heard this on a different situation I would have thought this is an AI hallucination.

    • Orygin@sh.itjust.works
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      6 days ago

      I think that’s the same kind of battery technology as explained in this video. Most certainly not the same chemistry used, but same in principle

    • teyrnon@sh.itjust.works
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      7 days ago

      I read some years back about I think the first big heavy industrial vanadium battery being built for some washington state company if I recall.

  • squaresinger@lemmy.world
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    6 days ago

    The headline looks wrong, but it actually isn’t.

    The article specifies:

    • Total capacity: 2.1GWh
    • Peak output: 1.2GW
    • Ramp up time: a few milliseconds

    That’s what the “within milliseconds” in the title refers to.

    Every power generator has a ramp up time. Think the time it takes to start the engine in a diesel generator, until it spins up and is able to output peak power.

    Nuclear reactors can hare ramp-up times of hours, in some conditions even days.

    This thing here can go from zero to peak output within almost no time, which makes it perfect to balance the sometimes erratic and unpredictable generation fluctuations of renewable energy production.

    For comparison, coal or gas power generators usually have large flywheels that, once spinning, react almost instantly to power fluctuations in the network by converting their motion to electricity or the other way round. If these coal or gas generators aren’t running, they can’t be used to balance the fluctuations in the network, so battery solutions like the one in OP are required to actively manage the network stability.

  • Aniki@feddit.org
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    6 days ago

    this will be by far the largest vanadium flow battery in the world, especially outside china

  • Greyghoster@aussie.zone
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    6 days ago

    The Swiss are on the frontline of climate change seeing that it is destroying their mountains which in turn are destroying their villages. Sad times.

      • squaresinger@lemmy.world
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        7 days ago

        1.2GWh within milliseconds would be exploding.

        Read the headline again, it only talks about GW not GWh. That means it can output 1.2GWh per hour, but it can ramp up to 1.2GW within milliseconds. And it likely can only keep that output for a very short time, which is exactly what you need to balance the fluctuations of renewable energy production.

  • Kazumara@discuss.tchncs.de
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    7 days ago

    They just had the first stone laying ceremony so that explains the new wave of publications on the project.

    They are using a Vanadium flow battery by the company Invinity Energy Systems which is British-Canadian.

    I’m a little unsure whether it’s a good idea to combine this with a datacenter, I hope the datacenter bubble popping won’t jeopardize the whole project.

  • cley_faye@lemmy.world
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    7 days ago

    Asked for comments, they kept saying “Rest assured there is no death ray plans”

    (/j)

    • squaresinger@lemmy.world
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      7 days ago

      The headline is most likely a misunderstanding, but “Output X Watt in Y time” isn’t all that wrong, since it would be talking about how quickly the power supply can respond to demand.

      Every power supply has a ramp-up time, and the way the headline is worded hints to a very short ramp-up time, which would be very helpful for network stabilization.

      But yeah, it’s likely the headline writer just misunderstood something.