New Mobility World in Frankfurt

[oilerlord]

Comment 1: a 24 kW DCFC can be highly useful for many businesses in an urban setting TODAY, since a 80-mile EV car might be there for 25-50 minutes. So restaurants and grocery stores and department stores can get the "EV business" if they are one of the few that offer that in the area.

But not if it costs the Whole foods customer (or the business owner) $12 every 30 minutes. I think the typical WF customer doesn't mind paying twice as much for organic radishes, but won't be plugging into those DCFC stations in front of the store unless they are free. Most businesses won't invest in DCFC unless there is a business case to do so. It's why free L2 is such a win-win.

[SparkE]

Comment 1: a 24 kW DCFC can be highly useful for many businesses in an urban setting TODAY, since a 80-mile EV car might be there for 25-50 minutes. So restaurants and grocery stores and department stores can get the "EV business" if they are one of the few that offer that in the area.

But not if it costs the Whole foods customer (or the business owner) $12 every 30 minutes. I think the typical WF customer doesn't mind paying twice as much for organic radishes, but won't be plugging into those DCFC stations in front of the store unless they are free. Most businesses won't invest in DCFC unless there is a business case to do so. It's why free L2 is such a win-win.

Most of the local (SF Bay Area) Whole Foods have EVgo installed (and most of the cars I see charging are getting it with the "free card"). The one WF in the area that I know of with a non-EVgo setup has a "$5 charge" DCFC (60A, however) - you pay $5 for however long you are connected. The station is incredibly buggy however.

[SparkE]

There isn't a lot of info on the unit about this (or maybe I just missed it), but I would *hope* that if one has a station with (say) 4 charge spots, and a max output of (say) 300 kW that if 4 cars are connected that could charge at a max rate of 100kW, that as each vehicle ramped down their charging as the battery filled, that the other cars would get their rate ramped up (if they asked for it).

The Bolt only charges at the max rate until about 50-55% of SoC, then drops down to round 37 kW, and then at around 70-75% SoC drops to a mid/low 20s kW rate.

Yup, I missed it. The link provided has the followng :

Dynamic Power Sharing: Utility connections can be oversubscribed and power is intelligently allocated among vehicles based on each battery’s state of charge (SoC) and instantaneous maximum charge rate. Every car always charges as fast as possible to minimize driver wait times.

I also missed the examples, :
* Start with conjoined Express Plus Stations.

*Add a cube for more power: eight stations per Power Cube provide up to 187 kW continuous power per port and 125 kW simultaneous power on all eight stations.

*Add another cube for additional power: four stations per Power Cube share 750 kW, providing up to 312 kW continuous power per station and 187 kW simultaneous power on all four stations.

I think the business profitability for "EV stations" along heavily travelled routes with strong EV concentration will increase tremendously once there are 100,000 (or maybe 200,000) (non-Tesla) EVs with 220+ mile range because people will use them. Once (non-Tesla) 340+ mile range EVs become numerous (90+ kWh batteries?) that can charge at 125 kW (or more) these units should sell like hotcakes, and the profitability of running these stations increases. Installing a pair today future-proofs the installation. Hopefully two Express Plus stations aren't 4 times the price of two Express 250 stations...

Edit: I looked more closely at the specs, and the max kW output is at ... 1000 V. Off the top of my head, I can't think of a single EV today with a pack voltage much over 400V - so halve those max kW numbers (although the buyer is 'future proofed' if/when cars with 600V or 800V packs show up). A single station has a max output of 400 A, so that is still impressive (160 kW at 400V).

It's an older article, but this page (article at Electrek) has the best description of these high-debit ChargePoint DCFCs (better than what *I* have found at CP, in fact) :

Chargepoint announces 400 kW charging
https://electrek.co/2017/01/05/chargepo ... cle-range/

[SparkE]

Anxiously awaiting news of any Express Plus installs in the U.S.