this post was submitted on 09 Apr 2024
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Both of the statements in that screenshot are just so inane.
Frequency has to be maintained on the grid. It’s the sole place where we have to match production and consumption EXACTLY. If there’s no battery or pumped storage storage available to store excess energy, the grid operators have to issue charges to the producers, in line with their contracts, to stop them dumping more onto the grid (increasing the frequency). The producers then start paying others to absorb this energy, often on the interconnectors.
It’s a marketplace that works (but is under HEAVY strain because there’s so much intermittent production coming online). When was the last time you had a device burning out because the frequency was too high?
Turning the electricity grid into some kind of allegory about post-scarcity and the ills of capitalism (when in fact it’s a free market that keeps the grid operating well) is just “I is very smart” from some kid sitting in mom and dads basement.
Usually too low frequency is issue, I can't imagine why even double frequency can damage PSU.
Ok, your particular device may handle a wide band of frequencies. Congrats.
But do we agree that not all devices can? What about sensitive devices keeping patients alive in hospitals?
Those would not be plugged straight into the grid but with a power conditioner inbetween
Oh ok, I guess frequency maintenance on the grid isn’t a problem then and all the pumped storage and battery installations can shut and all the grid planners can go home and the spots markets can close and we can just dump as current as we see fit onto the grid and you’re right and I’m wrong.
All of that matters, but I think the parent post was only calling out the hospital equipment as a bad example. Like how your keyboard and your SSD don’t care what the grid is doing as long as the PSU can handle it.
But back to maintaining the frequency on the grid, along with keeping it within tolerance don’t they also have to make sure that the average frequency over time is VERY close to the target? I believe there are devices that use the frequency for timekeeping as well, like some old plug-in alarm clocks.
Fair enough. I was getting frustrated because I was trying to make a larger point about the fact that the grid can’t endlessly handle production. At some point the grid has to say “it will cost you to dump this onto the grid”. And suddenly I found myself discussing PSUs. I mean, yes, I’m aware there’s equipment on the grid that can handle different frequencies better than others but I felt we were discussing the bark of a single tree when I was trying to talk about the forest.
Also fair enough!
It really is a good point you make though. There’s a large balancing act to produce the right amount of power at exactly the time it’s needed. I think in our daily lives, and especially for non-tech/STEM folks, electricity is just taken for granted as always available and unlimited on an individual scale. I think people don’t envision giant spinning turbines when they plug something in, just like they don’t think of racks of computers in a data center when they open Amazon or Facebook.
Maybe it will be less like that in a couple decades when there is distributed energy storage all over the grid, including individual homes & vehicles.
I mean I envision the data centers. I also envision the turbines. Am I doing it right?