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Re: Electrify America Network

Posted: Tue Oct 01, 2019 6:14 am
by danrjones
Sorry for the delay. Photos to follow. So what is in the enclosure - batteries? Why enclose batteries but leave a transformer on a pad for everyone to climb on? Per the photos you seem 100% correct. Still some plumbing sticking up in the enclosure as well.

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Re: Electrify America Network

Posted: Tue Oct 01, 2019 6:16 am
by danrjones
Two more photos....
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Re: Electrify America Network

Posted: Tue Oct 01, 2019 7:03 am
by coulomb
danrjones wrote:
Tue Oct 01, 2019 6:14 am
So what is in the enclosure - batteries?
I believe it's the "rectifier" unit. Some details in this post about an Australian installation:

https://www.drivezero.com.au/charging/w ... g-station/

BTW, the Maverick solar panel system is interesting as well.

My guess is that the "rectifier" unit contains three boost converters (one for each phase) that provides the 1000 VDC needed for the actual chargers (which would be buck converters). I'd say the thee large orange things at the bottom are the three boost inductors. Though they seem to be 50 Hz inductors (they would be 60 Hz in North America, of course). I suppose it could be a mains frequency three-phase transformer.

I further guess that these aren't installed yet; they're caged merely to prevent some cowboy from stealing them and selling them for scrap copper. They'd have to be enterprising cowboys to lift those things, but still...

I was going to say that the ABB two box system makes the Tritium ultra fast chargers look very compact in comparison (also 350 kW, with some models higher power than that). But on chasing up a link, it looks like they might also have a separate box (perhaps a bit smaller, it's hard to tell from the promotional photos) that lives behind the scenes. Who'd have thought it - a measly 350 kW power converter needs all that hardware? :shock:

[ Edit: indeed, the Tritium 350 kW chargers also have a separate "power unit". PDF brochure here. Also see the image below. ]

I don't see a lot of Tritium fast or ultra fast chargers in the US, even though they have a manufacturing facility in Torrance, CA (headquarters is in Brisbane, Australia; fast chargers are one of our very few high tech exports).

PS - the inability to insert UTF-8 characters (e.g. for thin no-break spaces) on this forum is rather irritating.

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Re: Electrify America Network

Posted: Tue Oct 01, 2019 7:58 am
by WetEV
Now open:

6401 W. Marana Center Blvd
Tucson, AZ 85742

Re: Electrify America Network

Posted: Tue Oct 01, 2019 9:04 am
by danrjones
Good info coulomb

Thanks!

Re: Electrify America Network

Posted: Tue Oct 01, 2019 7:07 pm
by GRA
WetEV wrote:
Tue Oct 01, 2019 7:58 am
Now open:

6401 W. Marana Center Blvd
Tucson, AZ 85742

^^^#1 for the month, #303 total. This shortens the 111 mile leg between Casa Grande and Benson to two legs of 52 and 60 miles, but I suspect its main value will be when EA builds a site between Casa Grande and Yuma, probably in Gila Bend.

Re: Electrify America Network

Posted: Wed Oct 02, 2019 8:50 am
by WetEV
One today.

5104 Commons Drive
Rocklin, CA 95677

Re: Electrify America Network

Posted: Wed Oct 02, 2019 5:35 pm
by GRA
WetEV wrote:
Wed Oct 02, 2019 8:50 am
One today.

5104 Commons Drive
Rocklin, CA 95677

Yup, #2 for the month, #304 total. Rocklin (I-80 ex. 109) is 15 miles east of the QC site in N. Highlands (I-80 ex. 94) and better spaced for a first stop for most people heading up to North Tahoe from the Bay Area (I-80's exit #1 is in downtown S.F.), and closer to the start of the steeper grade up to Donner Pass on I-80, so this site and the "Coming Soon" one in Truckee will be valuable, although there are plenty of Drive the Arc sites along the route so the EA ones mainly add capacity, and offer higher charging speeds for those cars that can benefit.

As it is, this site is 115 miles from the next open EA site in Sparks, NV, although you have a 6,800 foot climb to Donner summit and a net elevation gain of about 4,100 feet to Sparks, so 200 mile BEVs charged to 80% may, depending on conditions, have to use some of their reserve.
Until I-80 is completed across Nevada to SLC this is sort of a moot point.

The Truckee site will eliminate any worries about getting to Sparks, although the existing EVgo 50kW chargers in Truckee are at the same location (Save Mart, I-80 exit 185) so no real issues other than reduced charging speed.

Re: Electrify America Network

Posted: Wed Oct 02, 2019 6:21 pm
by DougWantsALeaf
Williamsburg Iowa down again.

We need the Iowa fast charger network to start going in soon.

Re: Electrify America Network

Posted: Thu Oct 03, 2019 5:42 pm
by GRA
Indio, CA (I-10 ex. 142) is open, #3 for the month and #305 total.

As it's 219 miles via I-10 to Buckeye, AZ, at least one infill site will be needed. Although there aren't any shown yet as "Coming Soon", it will presumably be in Blythe (ca. 101 miles), Quartzsite (121) or possibly but unlikely, Ehrenberg (103).