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Apparently Siemens is already onto 175 kW chargers, "Great for fast charging locations and applications along highway corridors.": https://new.siemens.com/us/e

by jaclaz 4y ago

Apparently Siemens is already onto 175 kW chargers, "Great for fast charging locations and applications along highway corridors.": https://new.siemens.com/us/en/products/energy/topics/transportation-electrification/versicharge-ultra-dc-fast-chargers.html https://new.siemens.com/us/en/products/energy/topics/transpo... Probably they want to halve the times in your example to 3/4th hour. They may be able to have 10 charging stations instead of 20, but the overall grid consumption will remain the same 1600-2000 kW is a lot of power and the need for dedicated power lines won't change.

KennyBlanken 4y ago
~250-350kW 800v chargers are the current top-dog DCFC charger systems in the EU, US, and elsewhere and they're increasingly common. Pairing stations with "local" battery buffer is a thing, as it reduces the need for local infrastructure upgrades and the systems can also help pay for themselves by acting as part of a 'virtual power plant'. The issue here is HNers not being aware of what's being done and what is being developed in these industries...
- TheSpiceIsLife 4y ago
  The issue is, presently, the overwhelming majority of our energy use I'd supplied by coal, oil, and natural gas. https://ourworldindata.org/energy-mix https://ourworldindata.org/energy-mix The problem is those who think building more wind and solar in the next few years is going to reverse this.
  - asadotzler 4y ago
    That's not the issue though. Even a 100% coal powered grid supplying electric vehicles is a significant improvement over gas powered cars and trucks.
    - TheSpiceIsLife 4y ago
      Right. The issue I was getting at is that we need to build a shitload more electricity generation. Whichever way you prefer, it's going to take longer than a couple decades.
      - coffeebeqn 4y ago
        The EU needs to do that anyway given … Russia. Two birds with one stone
- jaclaz 4y ago
  >The issue here is HNers not being aware of what's being done and what is being developed in these industries... Well, HN is not a specialised high power electricity engineers forum, though the original article is (IMHO) a little scare-mongering it seems like delivering a correct message, (in a nutshell) a lot of work for new lines and substations will be needed to be able to charge cars and commercial electric vehicles. If really-really the transition will happen in the 2030's for passenger cars and in the 2040-2050's for trucks, it's not a bad idea to start working on these grid extensions.
- dmix 4y ago
  The article/study talked about the battery thing and said it was an impractical solution for the projected scale (peak demand times + for all trucks traveling down highways * 71 charging stations) and this will have to require direct involvement with grid infrastructure. > A growing number of EV-charging sites are adding batteries that can store up grid power at times when chargers are sitting idle and provide it when charging loads exceed available grid capacity, he noted. But that’s far from “the most optimized solution,” he said, particularly as loads grow to multi-megawatt scale.
- throw0101c 4y ago
  > ~250-350kW 800v chargers are the current top-dog DCFC charger systems in the EU, US, and elsewhere and they're increasingly common. Yes, but those are mostly for 'residential' / non-commercial applications. For more commercial / industrial application a new system is being developed: > The Megawatt Charging System (MCS) is a charging connector under development for large battery electric vehicles. The connector will be rated for charging at a maximum rate of 3.75 megawatts (3,000 amps at 1,250 volts direct current (DC)). * https://en.wikipedia.org/wiki/Megawatt_Charging_System https://en.wikipedia.org/wiki/Megawatt_Charging_System
clouddrover 4y ago
> Apparently Siemens is already onto 175 kW chargers 350 kW chargers are widely used. As one example, Ionity's chargers are 350 kW: https://ionity.eu/en/weareonit https://ionity.eu/en/weareonit Repsol installed 400 kW chargers a few years ago: https://insideevs.com/news/375020/repsol-most-powerful-charging-station-europe/ https://insideevs.com/news/375020/repsol-most-powerful-charg... Kempower is working on new model chargers which support 400 kW: https://www.youtube.com/watch?v=aD_cvlitcIo https://www.youtube.com/watch?v=aD_cvlitcIo Alpitronic has a 400 kW charger coming out soon: https://www.linkedin.com/feed/update/urn:li:activity:6931968770349441025/ https://www.linkedin.com/feed/update/urn:li:activity:6931968... The Megawatt Charging System is the next step up for heavy vehicles: https://www.charin.global/technology/mcs/ https://www.charin.global/technology/mcs/ MCS sites will start deploying soon: https://insideevs.com/news/617089/charin-megawatt-charging-system-north-america/ https://insideevs.com/news/617089/charin-megawatt-charging-s... In the meantime you can charge your trucks and buses on existing 350 kW chargers: https://www.youtube.com/watch?v=9UAttTG03WA https://www.youtube.com/watch?v=9UAttTG03WA

by jaclaz 4y ago

KennyBlanken 4y ago

~250-350kW 800v chargers are the current top-dog DCFC charger systems in the EU, US, and elsewhere and they're increasingly common. Pairing stations with "local" battery buffer is a thing, as it reduces the need for local infrastructure upgrades and the systems can also help pay for themselves by acting as part of a 'virtual power plant'. The issue here is HNers not being aware of what's being done and what is being developed in these industries...

TheSpiceIsLife 4y ago
The issue is, presently, the overwhelming majority of our energy use I'd supplied by coal, oil, and natural gas. https://ourworldindata.org/energy-mix https://ourworldindata.org/energy-mix The problem is those who think building more wind and solar in the next few years is going to reverse this.
- asadotzler 4y ago
  That's not the issue though. Even a 100% coal powered grid supplying electric vehicles is a significant improvement over gas powered cars and trucks.
  - TheSpiceIsLife 4y ago
    Right. The issue I was getting at is that we need to build a shitload more electricity generation. Whichever way you prefer, it's going to take longer than a couple decades.
    - coffeebeqn 4y ago
      The EU needs to do that anyway given … Russia. Two birds with one stone
jaclaz 4y ago
>The issue here is HNers not being aware of what's being done and what is being developed in these industries... Well, HN is not a specialised high power electricity engineers forum, though the original article is (IMHO) a little scare-mongering it seems like delivering a correct message, (in a nutshell) a lot of work for new lines and substations will be needed to be able to charge cars and commercial electric vehicles. If really-really the transition will happen in the 2030's for passenger cars and in the 2040-2050's for trucks, it's not a bad idea to start working on these grid extensions.
dmix 4y ago
The article/study talked about the battery thing and said it was an impractical solution for the projected scale (peak demand times + for all trucks traveling down highways * 71 charging stations) and this will have to require direct involvement with grid infrastructure. > A growing number of EV-charging sites are adding batteries that can store up grid power at times when chargers are sitting idle and provide it when charging loads exceed available grid capacity, he noted. But that’s far from “the most optimized solution,” he said, particularly as loads grow to multi-megawatt scale.
throw0101c 4y ago
> ~250-350kW 800v chargers are the current top-dog DCFC charger systems in the EU, US, and elsewhere and they're increasingly common. Yes, but those are mostly for 'residential' / non-commercial applications. For more commercial / industrial application a new system is being developed: > The Megawatt Charging System (MCS) is a charging connector under development for large battery electric vehicles. The connector will be rated for charging at a maximum rate of 3.75 megawatts (3,000 amps at 1,250 volts direct current (DC)). * https://en.wikipedia.org/wiki/Megawatt_Charging_System https://en.wikipedia.org/wiki/Megawatt_Charging_System

clouddrover 4y ago

> Apparently Siemens is already onto 175 kW chargers 350 kW chargers are widely used. As one example, Ionity's chargers are 350 kW: https://ionity.eu/en/weareonit https://ionity.eu/en/weareonit Repsol installed 400 kW chargers a few years ago: https://insideevs.com/news/375020/repsol-most-powerful-charging-station-europe/ https://insideevs.com/news/375020/repsol-most-powerful-charg... Kempower is working on new model chargers which support 400 kW: https://www.youtube.com/watch?v=aD_cvlitcIo https://www.youtube.com/watch?v=aD_cvlitcIo Alpitronic has a 400 kW charger coming out soon: https://www.linkedin.com/feed/update/urn:li:activity:6931968770349441025/ https://www.linkedin.com/feed/update/urn:li:activity:6931968... The Megawatt Charging System is the next step up for heavy vehicles: https://www.charin.global/technology/mcs/ https://www.charin.global/technology/mcs/ MCS sites will start deploying soon: https://insideevs.com/news/617089/charin-megawatt-charging-system-north-america/ https://insideevs.com/news/617089/charin-megawatt-charging-s... In the meantime you can charge your trucks and buses on existing 350 kW chargers: https://www.youtube.com/watch?v=9UAttTG03WA https://www.youtube.com/watch?v=9UAttTG03WA