DC EV Charging Station

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Alwayslearningelec

Senior Member
Location
NJ
Occupation
Estimator
So if someone wanted to buy a plot of land and install EV chargers what electrical infrastructure would need to be near by from the POCO? Where would power to brink to the transformer be pulled from? Also I assume even on this scale a load calculation would need to be done to see if power could even be pulled from the POCO?
 
Alwayslearningelec said:
So if someone wanted to buy a plot of land and install EV chargers what electrical infrastructure would need to be near by from the POCO? Where would power to brink to the transformer be pulled from? Also I assume even on this scale a load calculation would need to be done to see if power could even be pulled from the POCO?
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Yeah most likely would need a load letter and engineered drawings and then utility would evaluate thier infrastructure. The DC chargers have a large window of sizing so that would need to be ironed out. They could be 20kw to 200kw chargers. Then you would need to evaluate the amount of chargers and any future needs as well. There are no demands unless it has a smart system installed. There can be a lot that goes into it to be honest


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kcunningham59 said:
Yeah most likely would need a load letter and engineered drawings and then utility would evaluate thier infrastructure. The DC chargers have a large window of sizing so that would need to be ironed out. They could be 20kw to 200kw chargers. Then you would need to evaluate the amount of chargers and any future needs as well. There are no demands unless it has a smart system installed. There can be a lot that goes into it to be honest


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Thanks. Wondering if buying small plots of land in "RIGHT" areas is a good idea. I think these will be popping up more and more.
 
Many years ago I did the first level 2 DC charger east of the Mississippi, and it required a 200 amp service. That would probably be the smallest commercial DC unit. I think Eaton said it was $100,000? The unit was so new, they had to come out and list it once it was installed. Bad location power wise. The rocky terrain on a hill was subject to lots of lightning strikes, and it was down more than it was up. Don’t know if it’s still there.
 
Alwayslearningelec said:
Also I assume even on this scale a load calculation would need to be done to see if power could even be pulled from the POCO?
Click to expand...


I am interested in this question, not just for EV chargers but just generally. Has anyone done a project where the Poco said we can't supply that or can only supply this much? I'm kind of thinking if they have lines in place, they are in the business of selling power so they would upgrade them as needed. Not sure if State tariffs say anything about Poco having to supply a certain load if requested.
 
electrofelon said:
I am interested in this question, not just for EV chargers but just generally. Has anyone done a project where the Poco said we can't supply that or can only supply this much? I'm kind of thinking if they have lines in place, they are in the business of selling power so they would upgrade them as needed. Not sure if State tariffs say anything about Poco having to supply a certain load if requested.
Click to expand...
I put in a big service for a glass tempering oven, poco tried to talk the customer out of it. They also tried to talk the customer out of a bigger transformer because they only had one in the yard and would have to buy a spare. Even though it was an industrial park, they only had two phases, and added third from about 2/10ths of a mile away through a trailer park.
 
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