Porsche sets charging record of 400kw

https://electrek.co/2018/12/13/porsche-electric-car-prototype-record-400-kw-charge-rate/

They didn’t reveal much about the “Porsche research vehicle” that they used to achieve the 400 kW charge rate, but they confirmed that it was equipped with a 90 kWh battery pack and it was able to add about 100 km of range in just 3 minutes.

Click to expand...

Man, I'd love to see a car go "pop" while attempting something like that.

"Sir, we've just finished connecting up the 500th Turnigy Graphene lipo pack - shall we plug her in?!" :lol:

https://www.cnn.com/2018/12/13/business/electric-cars-charge-bmw-porsche/index.html

Punx0r said:

"Sir, we've just finished connecting up the 500th Turnigy Graphene lipo pack - shall we plug her in?!" :lol:

Click to expand...

A Tesla semi was recently seen charging at five Superchargers at once - for a charge rate of ~600kW. That's not one charger, of course, so it doesn't break the Porsche record - but it does provide a cheap way to get big trucks charge stations quickly. Five Superchargers are easier to source than one brand new 600kW charger.

Dauntless said:

https://www.cnn.com/2018/12/13/business/electric-cars-charge-bmw-porsche/index.html

Click to expand...

Keith Pullen, a professor of energy systems at City, University of London, said that super-fast charging comes with other drawbacks. "If you charge a battery very quickly, it's less efficient [and] it actually damages the battery," he said. The technology could be useful in an emergency, but frequent use would cause a battery to wear out quickly.

Draining the grid
Engineers would need to solve another problem: super-fast chargers use a huge amount of power. Pullen said that a service station with 20 charging stations would use about six megawatts of power — the same amount as a typical small town. "This power has to come from somewhere and it has to come from the grid," he said. "You wouldn't be able to roll this out, there have to be major changes first."

Click to expand...

Imagine that, super-fast chargers use a huge amount of power. 400kW is a hell of a lot of power for charging one car.

Well, come on. They're trying to get across the point about the 20 charging stations could power a small town. All this talk about the 'Smart Grid" they say they should be installing, never mind how bad we need it, will it be enough?

Yeah, I don't get the hoo-har about "oh, how pointless - the grid would never take it". It's a proof of concept.

6MW is also not a lot of power by industrial standards.

Fuel stations on main roads tend to be surrounded by plenty of cheap, empty land with no neighbours. Easy spot for a few wind turbines, field of PV, containerised battery storage. Hell, 6MW is less than 3 containerised generators running on natural gas. High thermal efficiency, unlimited space for emissions control and little consequence of local air pollution, since it's in the middle of nowhere.

Love the Tesla truck charging off multiple standard chargers, great flexible use of existing infrastructure.

Punx0r said:

Yeah, I don't get the hoo-har about "oh, how pointless - the grid would never take it". It's a proof of concept.

Fuel stations on main roads tend to be surrounded by plenty of cheap, empty land with no neighbours.

Click to expand...

I'm in California, the land of no cheap, empty land with no neighbors. Chargers are located next to Walgreens. So the hard charge starts up and the lights dim in the store, maybe the neighborhood.

The reason you don't get it is you dream things up. No one said 'Oh, how pointless.' People rightly ask HOW this is going to be made possible before "Proof of Bad Concept" renders it impossible.

This is nothing special..
The F1 hybrids were doing much faster charge rates 5 + years ago.
20kWh batterys recharging in 3-5 seconds (braking time per lap)
Work that out as a charge rate !

Dauntless said:

I'm in California, the land of no cheap, empty land with no neighbors. Chargers are located next to Walgreens. So the hard charge starts up and the lights dim in the store, maybe the neighborhood.

Click to expand...

Haha good example of a sucky installation

Good job CA has no industry or agriculture if the place has no land, power or extra-urban roads!

Dauntless said:

Punx0r said:

Yeah, I don't get the hoo-har about "oh, how pointless - the grid would never take it". It's a proof of concept.

Fuel stations on main roads tend to be surrounded by plenty of cheap, empty land with no neighbours.

Click to expand...

The reason you don't get it is you dream things up. No one said 'Oh, how pointless.' People rightly ask HOW this is going to be made possible before "Proof of Bad Concept" renders it impossible.

Click to expand...

You are concerned with the charge rate?
.
For Tesla it will be made cheap by mega packs charged by solar and wind?

Note the location:
https://electrek.co/2018/12/15/tesla-megapack-debut-giant-energy-storage/

Dauntless said:

I'm in California, the land of no cheap, empty land with no neighbors. Chargers are located next to Walgreens. So the hard charge starts up and the lights dim in the store, maybe the neighborhood.

Click to expand...

On utility scale 400kw isn't a great deal. Like a small to medium sized strip malls worth. One of those transformer boxes that's about 6' cubed will easily handle it. It's alot less than a Walmart uses, especially one with a grocery section.

Punx0r said:

Haha good example of a sucky installation

Good job CA has no industry or agriculture if the place has no land, power or extra-urban roads!

Click to expand...

While California is a net exporter of produce, the good ole' State Government has talked of doing away with it. If we don't grow the food, who does?

As for the charge rate comments, that's well and good while there's just a few chargers. We're talking about the need to make them more prevalent than gas stations. 100 million cars in the U.S., etc. Walmart might indeed have to charge several dozen at a time continuously, all day. The first thing to making electrics seriously viable is to do away with the magical thinking that we can just put them out there.

Punx0r said:

Haha good example of a sucky installation

Click to expand...

Yep. Won't be an issue in the future.

========================
Tesla Superchargers will eventually run on solar power and batteries
Danielle Muoio Jun. 9, 2017, 1:02 PM
Business Insider

Tesla wants its massive Supercharger network to run on solar power or batteries in order to disconnect from the electric grid, which is still largely powered by natural gas and coal.

Musk said on Twitter that Tesla is currently installing solar panels and batteries at its Supercharger stations as part of that goal.

"All Superchargers are being converted to solar/battery power," Musk said. "Over time, almost all will disconnect from the electricity grid."

Tesla's network of Superchargers, which is set to double in number by the end of this year, can restore 170 miles of range in just 30 minutes, making it one of Tesla's biggest customer perks.
========================

This is already paying dividends:

===========================
Tesla Supercharger’s Powerpacks Undaunted by Power Outage
At the moment, Tesla runs more than 7,300 Superchargers at more than 1,000 stations.
Brad Bergan October 31st 2017

. . . .

However, when Waseem Mirza stopped by for a refill at the Supercharger station with his Model X last week, a power outage suddenly ripped through the whole service area, leaving the man what you might call up recharge creek with no current. Without amenities, little was left for customers and bystanders to do. As many began to reluctantly leave the site, Mirza realized that the Supercharger docks had remained powered.

Tesla confirmed Mirza’s observations: the Supercharger station had remained online thanks to its connection to a Powerpack battery system.

One of the first stations equipped with the cutting-edge system, the Powerpacks were not added to provide backup power. But this is nevertheless a noteworthy example of what high-standard engineering can do.

The Powerpacks’ primary purpose was to reduce peak power demand when multiple vehicles charge simultaneously. According to Tesla, this allowed them to increase the number of Superchargers at the station from two to 12 bays last year.
=========================