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Old February 19th 18, 05:30 PM posted to sci.astro.amateur
Jibini Kula Tumbili Kujisalimisha
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Default NASA's biggest worry right now: What if something goes wrong with the Webb telescope?

Chris L Peterson wrote in
:

On Fri, 16 Feb 2018 15:44:29 -0700, Jibini Kula Tumbili
Kujisalimisha wrote:

If you've already had the wiring done, you'll be waiting a long,
long time, unless you don't care about charge times when on road
trips. (To charge an EV for, say, 300 miles of range as quickly
as you can gas up a regular car, you need a 3 MW charger.)


For home charging, it's no big deal. You don't need special
wiring. A 300 mile drive requires around 100 kWh. Do that
overnight and you don't need anything you don't already have.


For people who only *ever* drive locally, sure. For people who
occasionally want to take a road trip to more than 300 miles away, it
becomes untenable.

On the road you can often take advantage of fast charging
stations.

The fastest charging station out there today is 50 kw. Porche has
proposed 350 kw (at $250,000 each), which will still take several
times as long to "fuel up". And they will require special power
circuits into the charging stations, even for a single charger. To
meet the "3 minutes for 300 miles" standard for gasoline requires, as
I said, about 3 MW per charger.

We've gone over this before, and you knwo I'm right, and you know
you're full of ****.

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