coder543

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841.
by coder543 4y ago
> My understanding is that neither source of energy was winterized to transmit the energy to the grid, not that they were unable to produce. Transmission was not the problem in any of these blackouts that I’m referring to. Powerlines fai
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by coder543 4y ago
My primary point is that renewables are working the way that they say they will work. Certain people refuse to admit that fossil fuel plants struggle in adverse conditions, but then rant about renewables being somehow unreliable. Renewable
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by coder543 4y ago
I agree cold has some effects on batteries, but the main impact on EV range is related to heating, so linking an article on EVs is not very useful when talking about stationary storage. Batteries generate heat when charging and dischargin
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by coder543 4y ago
Until recently, there wasn’t much demand for lithium. That’s the main reason for limited mining, in my opinion. The cost of lithium was 9% of the cost of a lithium ion battery cell according to one analyst last year. Battery packs cost more
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by coder543 4y ago
Many of the geographically-convenient spots to do pumped hydro in are already being used, which makes this hard to scale beyond what we currently have.
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by coder543 4y ago
> Look at the the lowest point of energy demand. That's base load. How big is it relative to the peak of energy demand? Depends on the season, but it's usually 70-80% of peak demand. So, the vast majority of energy demand is in
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by coder543 4y ago
> So it’s disingenuous to say that fossil fuels are responsible for blackouts when it’s the dispatchability of renewables that required fossil fuel burning in the first place. No... as I recall, in the Texas blackouts, the renewables act
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by coder543 4y ago
> I agree with most of what you say, but renewables can’t be counted on, so they can never be blamed. Renewables are fairly predictable, so they can be counted on. The production is variable, but not unreliable or unpredictable. It&#x2
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by coder543 4y ago
> The overwhelming majority of electricity demand is base load. Usually on the order of 70-80% [1]. We don't need "some" base load, almost all our demand is base load. The article you linked doesn't really back this u
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by coder543 4y ago
This was also an interesting and relevant analysis if you want to read more on the subject: https://cleantechnica.com/2023/01/18/the-nuclear-fallacy-why... Like I said, I do hope that SMRs succeed, and I want
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by coder543 4y ago
> Most nuclear plant construction is first-of-a-kind in the country it's being built. These have always cost more. I don't see how this is relevant. The Vogtle reactors are here in the US. The US has plenty of experience buildi
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by coder543 4y ago
> you’re just assuming it is true I'm not assuming it. I'm referring to the very real, major blackouts that have occurred in the US over the past couple of years. These events have plenty of reliable sources that tell exactly w
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by coder543 4y ago
> Wind and solar will probably be cheaper but this kind of tech could still be very useful in quite a few places. I agree, and I would love to see SMRs succeed. But, the latest developments in the cost of NuScale don't get my hopes
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by coder543 4y ago
>> Grids have also repeatedly been shown to handle more renewables than every previous prediction would make, and we haven't hit the limit. > Yes dispatchable generation may fail to materialize at times, but renewables “fail”
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by coder543 4y ago
> Batteries are a nightmare at grid scale from an environmental perspective. Which part[0], exactly? I think most people dramatically overestimate the level of "nightmare", and battery contents are highly recyclable. We don&#
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by coder543 4y ago
To provide more context, wind and solar were both in the low $30's/MWh of LCOE (levelized cost of energy) 3 years ago[0], with that number predicted to continue falling rapidly. Combined cycle (natural gas) is a bit higher[1] than
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by coder543 4y ago
> It's easy to get certified. Really? How many SMR designs have been certified in the last 20 years?
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by coder543 4y ago
Technically, the person you replied to is correct. Energy / time (energy over time) is power. Power * time is energy. If you had a battery with 20kWh and it was empty after two hours, you would know that it was providing 10kW, which is
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by coder543 4y ago
Watts are power, Watt-hours or Joules are energy. 50 megawatts (MW) of power is (perhaps obviously) able to supply 50 megawatt-hours (MWh) of energy every hour. According to a google search, the average US residential customer consumes 886k
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by coder543 4y ago
The problem with the Reddit redesign has nothing to do with missing features or capabilities. Even on an insanely powerful computer with a gigabit fiber optic connection, it is unbelievably slow compared to the old one. It also implements a
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by coder543 4y ago
Now that's a strawman if I've ever seen one.
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by coder543 4y ago
> In other words, `mem::forget` can only be defined in terms of Drop (or default drop behavior for a type) in terms of ownership semantics, because its signature admits no other possibilities. But again, Drop is a destructor trait. It mi
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by coder543 4y ago
I think your second paragraph is a misinterpretation of how Rust works. Everything isn’t implicitly Drop. Drop is an explicit cleanup mechanism that types can opt into. If it helps you to think of it conceptually as everything having an imp
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by coder543 4y ago
The complete function definition is provided in the documentation there, and it isn't defined in terms of Drop. It's just a single line function with an empty body. In fact, mem::drop will accept any value, whether it implements D
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by coder543 4y ago
No, it wouldn't. Thunderbolt versions 3 and 4 are giving you 4 lanes of PCIe 3.0 on an external connector. You can easily get 3GB/s from an NVMe SSD in a Thunderbolt enclosure, which is the same performance as putting a PCIe 3.0 S
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by coder543 4y ago
Obviously using an external drive as your boot drive might not be the best idea in that situation, but that situation does not sound fun at all.
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by coder543 4y ago
CPU throttling and battery issues aren’t necessarily related to software at all, but “battery issues” is very nebulous, and I expect (problematic) CPU throttling to be less of an issue with the more efficient chips and cooling solutions t
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by coder543 4y ago
I’m not recommending any of this for laptop users, at all. If the external drive won’t be connected 100% of the time, there are all sorts of headaches that can occur because Apple doesn’t really design their software to handle intermittentl
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by coder543 4y ago
The point is that you wouldn’t be removing it… ever. It would be your primary OS drive, sitting on the table forever with your Mac mini desktop. How would you wear out a port by leaving something plugged in? I’m not talking about laptops. I
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by coder543 4y ago
> This way there is never any chance unencrypted data is written to the flash. That has nothing to do with the SSD controller. The OS never has to send unencrypted data to the SSD in the first place. Offloading encryption to SEDs (self

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