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Free Destination Charging: 50x L2 80A Stations @ Caltech, Pasadena, CA

Discussion in 'Supercharging & Charging Infrastructure' started by MITE46, Nov 26, 2015.

  1. MP3Mike

    MP3Mike Well-Known Member

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    @CameronB @icanmakeit The picture is named "LAHS HPWC deployment"... Would that be LA High School?
     
  2. CameronB

    CameronB Member

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    Based on earlier answer, I guess Los Altos High School.

    Only a bit from me. Will have to check it out some time.
     
  3. arnolddeleon

    arnolddeleon Supporting Member

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    It certainly looks like Los Altos HS. They previously had a small number of EVSE in that area.
     
  4. MITE46

    MITE46 Member

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    Quick Caltech update, daily EVs have been increasing! So to satisfy the demand, we've added another 22 stations this week.

    IMG_5408.JPG
    IMG_5414.JPG IMG_5415.JPG
     
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  5. hcsharp

    hcsharp Active Member

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    Do these have cameras for parking occupancy detection or vehicle type? It's impressive how quickly you can implement an installation.
     
  6. MITE46

    MITE46 Member

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    Not at this location due to privacy concerns...other sites yes. We're going to try to hit 150 chargers by the end of the year. Infrastructure can easily handle that as its hovering around 150kW peak and ~3,000 miles delivered per day.
     
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  7. FlatSix911

    FlatSix911 Porsche 918 Hybrid

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    Excellent news ... what is the Tesla charge rate and Amperage?
     
  8. MITE46

    MITE46 Member

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    We always install 80amps...I’m often disappointed by 32amp HPWCs.
     
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  9. FlatSix911

    FlatSix911 Porsche 918 Hybrid

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    Love it ... I'm in Los Altos and will have to test it out :cool:
     
  10. hcsharp

    hcsharp Active Member

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    Thank you for this! Sometimes superchargers are just not convenient. That's especially true when I'm driving my Roadster. Now if only Target had called you before Chargepoint.
     
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  11. miimura

    miimura Active Member

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    #211 miimura, Jul 13, 2018
    Last edited: Jul 13, 2018
    I finally got around to trying the CHAdeMO at Los Altos High School installed by @MITE46 's crew. It is a BTC dual standard machine that is used a lot by EVgo, who runs them at 100 amps max. This unit installed by Powerflex Systems however, seems to run full blast with 50kW from the grid side, passing everything it can to the vehicle. My RAV4 EV with JdeMO started out at about 65% SOC drawing 123 or 124 amps at 360VDC. It continued to charge at approximately constant power to about 83% SOC when it was drawing 117 amps at 379VDC. That's is where the RAV's Tesla pack starts to taper. By 85% it had dropped to 100 amps, where I stopped the session. Very impressive use of the hardware. I wish EVgo would run their BTC chargers like this.

    LAHS Charger Overview.jpg
     
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  12. Jeff N

    Jeff N Active Member

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    EVgo does run some of their BTC chargers at 125-130A. They seem to have an upgrade program going on but I’m not sure of the status of rolling it out. Some EVgo BTC stations have been doing ~125A for at least a year.

    Here’s a photo I took at a BTC EVgo Charger in California almost exactly one year ago:

    6A8C410A-06D8-42E3-982A-5A902655647C.jpeg
     
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  13. miimura

    miimura Active Member

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    I remember you posting that before, but I never hear about it anywhere else. Not much of a roll out if you ask me. The only good thing about EVgo is that their promotional pricing is still going on even though it was only supposed to run March-June this year. Strangely, some EVgo sites with one CHAdeMO only charger and one dual-standard charger had the CHAdeMO priced FREE when I looked today. I happened to notice it in the EVgo app for Petaluma, San Rafael, Salinas, and Nob Hill Watsonville. Weird.

    EVgo Free CHAdeMO.jpg
     
  14. Jeff N

    Jeff N Active Member

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    #214 Jeff N, Jul 14, 2018
    Last edited: Jul 14, 2018
    I’ve noticed upgraded EVgo BTC chargers in a few locations personally and have heard about upgraded BTC chargers on the east coast. I don’t know the overall statistics on how many have been upgraded.

    I recently did a trip up to Seattle. Two upgraded locations were the Tacoma Mall in Washington state along I-5 and another location at the 7-11 near Portland Airport in Oregon along I-205. The California location I know about is the right-most charger at the location in Madera along CA-99 (the charger on the left side is still 100A).
     
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  15. PlayaVista

    PlayaVista Member

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    Not a fan of the new Powerflex stations. In my Model 3 tests they do not go past 30A and will often disconnect before charge completes.

    Also lots of ants! I am tempted to dust the wall with diatomaceous earth because it is relatively harmless and easy to clean but no my property. Have been also picking up trash near the CHAdeMO charger as well.
     
  16. MITE46

    MITE46 Member

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    max speed is 32A, we are still evaluating 48A and 80A hardware, no one has anything cost effective.

    We are focused on workplace charging which means increasing station count is more important than max charging speed. We would rather have all 100 EVs plug in and not have employees move their car for the entire work day, instead of fewer, faster stations.

    So yes, many of the 80A units are going to be replaced by multiple 32A stations.
     
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  17. dek526

    dek526 Member

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    @MITE46 i’ve had 2 charging sessions stop at around 2.5 hours on the reg level 2 stations. are you guys interrupting the session to promote ev charger sharing? just trying to understand why i’ve experienced this with my model 3
     
  18. MITE46

    MITE46 Member

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    Default anonymous session is now 40 miles or 4 hours which ever comes first. To unlock additional energy, use the PowerFlex mobile app. =)
     
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  19. dek526

    dek526 Member

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    ty sir!!
     
  20. MP3Mike

    MP3Mike Well-Known Member

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    What if you don't have compatible smart phone?
     

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