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Elon Musk on How to Build the Future

(www.ycombinator.com)
1106 points sama | 8 comments | 15 Sep 16 18:05 UTC | HN request time: 0s | source | bottom
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iMuzz ◴[15 Sep 16 18:20 UTC] No.12508474[source]▶
Question/Answer I found interesting:

Sama> How should someone figure out how they should be useful?

Elon> Whatever this thing is you are trying to create.. What would be the utility delta compared to the current state of the art times how many people it would affect?

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milkytron ◴[15 Sep 16 18:55 UTC] No.12508769[source]▶
Certainly very interesting, in fact I wrote this down when I heard it. And if you look at the projects he's working on (Renewable energy, cars able to powered by renewable energy, and preserving life outside of Earth), they all affect a great portion of humanity, and have a very large affect.
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soufron ◴[15 Sep 16 19:20 UTC] No.12508992[source]▶
Affect like how? As of today they're useless, except for Tesla who's motivating car automakers to go towards autonomous cars - but they had the tech before.
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1. marvin ◴[15 Sep 16 19:35 UTC] No.12509111[source]▶
Tesla's energy storage enables people to use solar energy at night, without the process being a big hassle. If it gets cheap enough, it will make solar power competitive with fossil power in most scenarios. Currently, the battery installations are a cost-competitive alternative to fossil ways of covering peak load. Calling it useless is probably a stretch.

Ditto with Tesla's cars; they aren't a drop-in replacement for gasoline cars in all scenarios but I've heard more than one Tesla owner say that they will never buy a gas-powered car again. So obviously that implies greater utility for the person in question than any current gas-powered car.

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2. soufron ◴[15 Sep 16 20:41 UTC] No.12509646[source]▶
You're kind of right. Let's say they find the right uses for existing tech that's not being used as it should.
3. jsprogrammer ◴[15 Sep 16 20:44 UTC] No.12509676[source]▶
Are Tesla's energy storage solutions available anywhere outside their vehicles?
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4. dv_dt ◴[15 Sep 16 20:51 UTC] No.12509710[source]▶
Yes. Tesla Powerwall, a home battery.

https://www.tesla.com/powerwall

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5. jsprogrammer ◴[15 Sep 16 23:53 UTC] No.12510864{3}[source]▶
I don't think those are planned to ship until 2018.
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6. dv_dt ◴[16 Sep 16 05:14 UTC] No.12511990{4}[source]▶
"During the first quarter of 2016, Tesla delivered over 25 MWh of energy storage to customers on four continents. Over 2,500 Powerwalls and nearly 100 Powerpacks were delivered in North America, Asia, Europe, and Africa.[33]"

https://en.wikipedia.org/wiki/Tesla_Powerwall

I don't know if those were still pilot program devices or if they've hit some level of regular production. 2500 units is still a good start.

7. intended ◴[16 Sep 16 06:02 UTC] No.12512153[source]▶
So what happens to the batteries when they go bad or old?
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8. collinmanderson ◴[16 Sep 16 22:00 UTC] No.12517672[source]▶
Yes, likely you'd need to get all-new batteries every 10 years[1] or so. (And likely recycle the old ones.)

The good news is that batteries are getting about 8% more efficient every year (price per kwh) [2]. So 10 years from now batteries will be 1.08^10 = ~2.15x as efficient [3].

So when you replace them, they'll cost half as much for the same amount of energy storage (and probably half the space too). It's basically Moore's law for batteries except slower.

[1] https://www.tesla.com/powerwall

[2] https://cleantechnica.com/2015/03/26/ev-battery-costs-alread...

[3] or is it 1/(.92^10)? That would be 2.3x