• 0 Posts
  • 639 Comments
Joined 1 year ago
cake
Cake day: June 11th, 2023

help-circle














  • Just for another angle on the problem: baseload generation (nuclear) is most efficient at its highest possible output, but it has to maintain that output 24/7. It can’t ramp up and down fast enough to match the demand curve, and it can’t be ramped up above the minimum overnight demand.

    To increase its efficiency, utilities push large scale consumers like steel mills and aluminum smelters to overnight shifts. This artificially increases the overnight demand, allowing the baseload generators to ramp up their relatively efficient production. This reduces the need for less-efficient peaker plants during the day.

    That overnight demand can’t be met with solar, and wind generation tends to fall overnight as well.

    What nuclear can do is help level out seasonal variation, between the short days of winter and long days of summer. If you want to contemplate a truly pie-in-the-sky scenario, there are provisions for tying large ships, (like aircraft carriers and hospital ships) to shore power, and backfeeding the local grid to support disaster relief efforts.

    Imagine a fleet of nuclear generation ships, sailing to northern-hemisphere ports from November to April, and to southern-hemisphere ports from May to October.

    Pumped storage is also essential, but extraordinarily limited. We can probably run essential overnight loads on pumped storage, but it does not make sense to keep an overnight load on pumped-storage that can be shifted to solar/wind directly.

    We need to take a look at demand shaping rather than supply shaping. We need to shift load to times we can produce, rather than shift production to times of demand.




  • Rivalarrival@lemmy.todaytoTechnology@lemmy.worldWhat the hell Proton!
    link
    fedilink
    English
    arrow-up
    54
    arrow-down
    2
    ·
    1 month ago

    They need to advertise a legitimate use for their service.

    If they don’t have a threat from public wifi or other security concerns to remedy, then the only purpose for their service is to bypass region limits and block infringement notices. They would be considered complicit in such infringement.

    That their service also hinders efforts to stop pirates needs to be an “unintended” and “unavoidable” side effect.


  • We have incentivized night time consumption. Base load generation (nuclear, coal) can’t ramp up and down fast enough to match the daily demand curve. They can’t produce more than the minimum overnight demand, but they have keep producing that around the clock. To minimize the need for “peaker” plants during the day, they want the overnight demand to be as high as possible.

    So they put steel mills, aluminum smelters, and other heavy industry on overnight shifts by offering them extraordinarily cheap power.

    That incentivized overnight load needs to be shifted to daytime, so it can be met with solar and wind. Moving forward, we need to minimize overnight demand.


  • Because it is not cost effective. Simple as that.

    The problem is that we don’t have enough demand shaping to shift night time loads to day time, and we don’t have enough storage to shift production to overnight. The result is that daytime generation is regularly going into negative rates (you have to pay to put power on the grid, which melts the returns on your investment into solar.

    As far as problems go, it’s a good one to have, as it will eventually result in lower prices for daytime generation.