Viewing profile — kdbeall_
kdbeall_
HN member- Joined
- Thu, Apr 01, 2021, 4:25 AM UTC
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- 22 items
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About kdbeall_
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Recent public activity
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Comment #33556443
> New lower level reserves will be even more expensive to the point where the LCOE of solar is around the raw uranium price. No. From the World Nuclear Association, "doubling the u…
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Comment #33553580
> then you run out of uranium Won't happen anytime soon. There's a lot. We have a century's worth, and the uranium price could easily be three times higher, without hardly an impac…
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Comment #33551704
> A 2022 PERC cell has an EBPT of about 3-6 months Okay, so there's a new solar cell that is slightly better and perhaps can be manufactured a little cheaper. Great! So what? You h…
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Comment #33540437
This is a mostly dumb and gimmicky idea. It will fail. If we want serious climate solutions we need either a massive build-out of nuclear power or wind plus utility-scale battery (…
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Comment #33319064
Oh, so the Dutch government should expropriate their land?
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Comment #32282952
Wow, this was a puff piece
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Comment #31903505
They aren't. See the average EV in China.
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Comment #31073952
Vanadium redox flow batteries have energy densities of ~10–20 Wh/kg. But for grid storage I think even sodium-ion batteries would be a better candidate. Those have energy densities…
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Comment #31056286
Yeah, LFP is arguably good enough for 80% of all EVs is my guess. Arguably it is also good enough for energy storage as well. However, for EVs, LFP doesn't have as high energy dens…
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Comment #31044085
Ask an attorney. I don't think non-compete agreements are valid in some states like California.
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Comment #31043854
These are both pretty bad takes. We as a civilization do not mine the crust for uranium. We mine high-grade ore deposits. I think with our current resources and technologies we cou…
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Comment #31043687
Energy density and availability of materials. Li-S ballpark is 550 Wh/kg while conventional lithium-ion is around 200 Wh/kg. Using nickel, cobalt, and other expensive metals is not…
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Comment #31035281
Depends on what tech comes out. If lithium-sulfur batteries and perovskite solar cells go into mass production I think nuclear will be one of the smaller contributors. Nuclear work…
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Comment #31035255
Nuclear is not suited for peaker plants. It probably never will be. The fuel is a small part of the cost of a nuclear plant. This is why battery tech is key to energy transition. I…
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Comment #31035130
> Because mining nuclear materials is an ecological disaster. Also, guess who's a big exporter of uranium in Europe? Russia. Cameco could easily restart Rabbit Lake and McArthur Ri…
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Comment #30940715
Also, gold content of asteroids is incredibly low. You'd be lucky to find a metallic asteroid with even 1 ppm of gold. Mines here on Earth often have grades above 4 ppm. The highes…
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Comment #30725701
Kind of? Think Chicago — it's hub for all sorts of agricultural commodities.
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Comment #30376393
This mission architecture is kinda cool It could fit in neatly with Starship
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Comment #30376315
I'm not firmly in the terraforming camp, but something I'd like to point out is that humans don't need exactly 1 atm. About 0.5 atm would be sufficient. It's analogous to what is f…
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Comment #30376210
> mars is nothing more than a further, more annoying version of the Moon. This is simply wrong. Mars has had the geological processes necessary for ore formation. Whereas the Moon …
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