Incremental work yesterday. Extended the sign pole and added the Handicap signage indicating a Van Accessible dedicated stall. The stall still needs blue paint. CORVID-19 has delayed inspections so will need to wait to reopen the city government before this site is completed.
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Supercharger - Chula Vista, CA (LIVE 4 Aug 2020, 16 V3 stalls)
- Thread starter Axtrader
- Start date
Incremental work yesterday. Extended the sign pole and added the Handicap signage indicating a Van Accessible dedicated stall. The stall still needs blue paint. CORVID-19 has delayed inspections so will need to wait to reopen the city government before this site is completed.
This site does not have a transformer in place in the first picture. The transformer pad is empty but crews are working on the low voltage irrigation lines around it.
Yet, there are those who feel compelled to plug in and try in pics 2 & 3. We are still a few weeks out waiting for inspections to restart folks.
Yet, there are those who feel compelled to plug in and try in pics 2 & 3. We are still a few weeks out waiting for inspections to restart folks.
Graffi
Member
Drove by last Friday (June 5, 2020). Everything looks good, just not turned on yet.
Does anyone (Including Randy) have any insight as to when this will be open?
Does anyone (Including Randy) have any insight as to when this will be open?
BrokerDon
Active Member
... and this is why California is so difficult to do business in. MANY layers of Red Tape with MULTIPLE agencies each having discretionary power to stop a project.
The transformer was installed sometime in the last couple of days. If we can get an inspection early next week, we can be Supercharging by the weekend. It’s been almost 9 months since they broke ground on this project.
Waiting on SDGE to show up onsite and start testing. So we should be in business in a couple /few days.
Power is on...A few more days and the site should be commissioned...
I'll be very interested in watching the charging speeds...
12 stalls x 250 kW each (momentary max, but not all cars will charge that fast). Transformer rating is 1500 kVA, though...
I'll be very interested in watching the charging speeds...
12 stalls x 250 kW each (momentary max, but not all cars will charge that fast). Transformer rating is 1500 kVA, though...
That 1500 kVA is plenty as utilities tend to be comfortable using coincidence factors as low as 50% when planning for loads on a distribution feeder and even lower at times (basically 100 percent coincidence factor would mean all the loads peak at the same time while a lower number means simultaneous loads are less likely to have coincident peaks).
It would be a highly unlikely scenario for 12 Model 3s or Ys to arrive at the same time with the same state of charge and all trying to pull 250 kW simultaneously. Even in that highly unlikely scenario the power electronics within the supercharger would simply not allow it and would limit the output.
TerranApart
Member
If the boilerplate sticker is to be believed, the v3 cabinets themselves only draw ~350kVA from the grid anyway, so 12 stalls = 3 cabinets = 1050kVA.
@tij664
Coincidence factors for EV charging have been discussed (I work for the utility), but there is some reluctance to use the same factors as other loads because EV chargers do fill up and max out (just look at Fashion Valley's chargers).
@TerranApart
I haven't been there to study the nameplate labels and the layout, but if your numbers are correct then I don't see how these units can get close to 250 kW with a few cars there. I'll have to do some more reading about them...
Coincidence factors for EV charging have been discussed (I work for the utility), but there is some reluctance to use the same factors as other loads because EV chargers do fill up and max out (just look at Fashion Valley's chargers).
@TerranApart
I haven't been there to study the nameplate labels and the layout, but if your numbers are correct then I don't see how these units can get close to 250 kW with a few cars there. I'll have to do some more reading about them...
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