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Tesla has finished building the biggest battery in the world

mashable.com

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Re: Tesla has finished building the biggest battery in the world

#31

Post by caio1982 »

_yewy wrote: post #15

Am I the only one who is completely fed up of this "cult of personality" mentality in tech and tech-related media? The article itself is not that bad, but the title here on HN makes it look like he built the damn thing himself. I know everybody is smart enough to understand that there were tons of people involved, but why put Elon Musk instead of, idk, Tesla. I don't have any problem with any single article on Musk/J…

The original title of the article had been changed. The one I used here was in fact the original one they chose.

Edit: even Musk himself acknowledged that in a tweet — https://twitter.com/elonmusk/status/933576358793318401 — so don't freak out over a poor choice of words that later got updated by the news site... I would be super happy to update it here if that was possible (or mods could do this, please?)

Re: Tesla has finished building the biggest battery in the world

#32

Post by Matt3o12_ »

keenerd wrote: post #18
anovikov wrote: post #13

that's still pricey at almost $400 per kwh of capacity... or about $0.2 per kwh of storage, several times the grid prices.

edit: I too can mix up GW and MW.

I would actually be very surprised if they only lasted for 500 cycles. Apple currently says their devices last 1000 cycles and Tesla is very careful with their batteries. They recommend not charging it below and above a certain percentage in their cars and it would surprise me if it was any different in their battery packs (though I believe they do not have such an option -- they just do it automatically). Furthermore, those packs have dedicated cooling and a low discharge rate, and are made for a lot of discharges (unlike iphones, which are made to be purchased every two to four years).

According to Wikipedia[0], the original Powerwall was rated for 1000-1500 cycles and it would suprise me if Tesla's new powerwalls are not better.

So, they should be even cheaper then your estimate, especially when you consider that they will probably be used well after the 20% capacity lose.

[0]: https://en.wikipedia.org/wiki/Tesla_Powerwall#cite_ref-te201...

Re: Tesla has finished building the biggest battery in the world

#34

Post by marcosdumay »

jakecodes wrote: post #5

I am not a battery expert by any means. But the article says: > with 100 megawatts of capacity. Isn't megawatts the measurement of power? Wouldn't Watt Hours be the measurement for capacity? Sometimes people use Apmere Hours also. Like the Chevy Bolt has 60 kWh of capacity.

Turns out that power output is one of the most important measures for a battery.

On some applications it's even more relevant than capacity. (If you have an internal combustion car, take a look at its battery, odds are power is written in way larger letters than capacity.)

Re: Tesla has finished building the biggest battery in the world

#35

Post by agumonkey »

petecox wrote: post #17
socceroos wrote: post #2

I'm impressed with the pace at which they delivered this. If only all government projects were this efficient.

100 days or it's free was the deal. The urgency was the arrival of summer and an ongoing spat between state and federal politicians.

I hope it's gonna make Australia more friendly to Tesla, they need some cash right now.

Re: Tesla has finished building the biggest battery in the world

#36

Post by frandroid »

fu86 wrote: post #26

I am not sure about that (biggest battery in the world). This looks like a battery "pack" (an array of batteries connected in parallel/series). This looks like just a marketing thing to me, because there is nothing new or special about it. Just "the biggest". Germany is also working on big batteries for years, but with a completely different strategy. A redox-flow battery with polymers and saline solution ( https://w…

Do you understand that the word "battery" means "array"?

Re: Tesla has finished building the biggest battery in the world

#37

Post by qu1mby »

frandroid wrote: post #36
fu86 wrote: post #26

I am not sure about that (biggest battery in the world). This looks like a battery "pack" (an array of batteries connected in parallel/series). This looks like just a marketing thing to me, because there is nothing new or special about it. Just "the biggest". Germany is also working on big batteries for years, but with a completely different strategy. A redox-flow battery with polymers and saline solution ( https://w…

Do you understand that the word "battery" means "array"?

Or the more polite variation: "'battery' actually means 'array', so it's being used appropriately in this case"

Re: Tesla has finished building the biggest battery in the world

#38

Post by _yewy »

caio1982 wrote: post #31
_yewy wrote: post #15

Am I the only one who is completely fed up of this "cult of personality" mentality in tech and tech-related media? The article itself is not that bad, but the title here on HN makes it look like he built the damn thing himself. I know everybody is smart enough to understand that there were tons of people involved, but why put Elon Musk instead of, idk, Tesla. I don't have any problem with any single article on Musk/J…

The original title of the article had been changed. The one I used here was in fact the original one they chose. Edit: even Musk himself acknowledged that in a tweet — https://twitter.com/elonmusk/status/933576358793318401 — so don't freak out over a poor choice of words that later got updated by the news site... I would be super happy to update it here if that was possible (or mods could do this, please?)

I tried to make it as clear as possible that my problem is not with this, or any other, single article :) I just happened to write it here because I've been thinking about it for a bit, read the article and wanted to see what people think about it.

Re: Tesla has finished building the biggest battery in the world

#39

Post by skybrian »

simonh wrote: post #28
_yewy wrote: post #15

Am I the only one who is completely fed up of this "cult of personality" mentality in tech and tech-related media? The article itself is not that bad, but the title here on HN makes it look like he built the damn thing himself. I know everybody is smart enough to understand that there were tons of people involved, but why put Elon Musk instead of, idk, Tesla. I don't have any problem with any single article on Musk/J…

To be fair though, if Tesla build say a giant electic powered jet airplane next year, it will happen because Elon Musk decides he wants an electric jet airplane, not because John Doe in the Tesla workshops is really good a welding. Some people really do make that much of a difference. If none of the other people at SpaceX had existed in 2002 when Elon decided to build the company, so he'd had to hire all different pe…

That's the opposite of being fair. Making decisions (such approving a new, ambitious project) is not doing the work.

Any good manager will make sure that credit goes to the people doing the work. Though it's difficult because the there are so many people involved. The people at the top tend to get too much attention and credit for structural reasons and it's an uphill battle to prevent this.

Re: Tesla has finished building the biggest battery in the world

#40

Post by [deleted] »

caio1982 wrote: post #31
_yewy wrote: post #15

Am I the only one who is completely fed up of this "cult of personality" mentality in tech and tech-related media? The article itself is not that bad, but the title here on HN makes it look like he built the damn thing himself. I know everybody is smart enough to understand that there were tons of people involved, but why put Elon Musk instead of, idk, Tesla. I don't have any problem with any single article on Musk/J…

The original title of the article had been changed. The one I used here was in fact the original one they chose. Edit: even Musk himself acknowledged that in a tweet — https://twitter.com/elonmusk/status/933576358793318401 — so don't freak out over a poor choice of words that later got updated by the news site... I would be super happy to update it here if that was possible (or mods could do this, please?)

[deleted]
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