itengelhardt

Joined 13 years ago

Karma
280
Submissions
125
Member since
Aug 16
I am the author of the SaaS Email Marketing Handbook (https://www.saasemailmarketing.net/) and the former owner/founder of LinksSpy (sold in 2017).
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Recent submissions

Comment · 3 years ago
Thank you for asking this question. I didn't understand the notation either
Comment · 3 years ago
Man, thank you for writing floor(x/2) because I've been looking at the original post and didn't know what those silly brackets are supposed to mean.
Comment · 3 years ago
We went through immigration four weeks ago and didn't get a stamp in the passport either.
Comment · 4 years ago
As far as I know, around 1,000 Euro / sqm is a good estimate for bringing a 200+ kWh/(sqm * a) house down to about 85-100 kWh(sqm * a)
Comment · 7 years ago
What? I'm German. This is infuriating.

I now have to pay him and ask for an invoice just to experience this :-)

Comment · 7 years ago
Comment · 8 years ago
I'd have to say mostly sweets and cakes ;-)
Comment · 9 years ago
In the investors call last week Tesla stated that the problem is at the Gigafactory with battery production.

Here's a link to a summary of conference call: https://www.reddit.com/r/RealTesla/comments/7ao4m0/conferenc...

That forum is quite anti-Tesla (as opposed to /r/teslamotors). The whole Tesla thing is quite controversial - lots of haters, lots of fanboys.

Best advice I can give you: Read what both sides have to say and weigh the arguments. Then just stick with the truth you've always believed in - it's what everyone does in 2017 ;-)

Comment · 9 years ago
IMHO two things:

a) "fast charger" is a loose term and is often used for anything exceeding 20kW. Superchargers deliver up to 140 kW (split between two cars) or 120 kW (to one car). That's why Tesla/Elon sometimes refer to them as "level 4 charger", although the specification ends at level 3. Other manufacturers are now getting on that train with (according to specification) up to 400 kW

b) The notion of the "average electric car user" does not take into account that yes, people drive less than 80km per day on average, BUT they go on the occasional road trip. And they don't want to have a car sitting around just for road trips. They want one that can do both (commute & roadtrip). That's where the supercharger network helps

Comment · 9 years ago
Initially ludicrous mode was not just a software update. You could get it on your (already delivered) MS P90D, but had to bring it into service. They changed a fuse and activated ludicrous mode in software.

Of course, today all Tesla P100D get built with that fuse already in place - so it's "just a software upgrade" today.

There's quite a bit of electrical magic going on for a fuse to be able to handle insane current bursts while retaining a good response time in case of a catastrophic fault.

Comment · 9 years ago
you're right. I googled for "number of car deaths in US" (or so I thought) and that number came up. 1.3M seems to be the number for world wide fatalities.
Comment · 9 years ago
That's why at current we have 1.3 million people dying on the road in the US alone. It might make the matter of transitioning to self-driving worse, but it also makes manual driving worse.
Comment · 9 years ago
According to Tesla's website (https://www.tesla.com/powerpack) each Powerpack has 50 kW / 210kWh with a scalable inverter power ranging from 50 kVA to 625 kVA.

So they could have gotten a system with 100 MW/420 MWh

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