Nope. Even the 4) 350kW stall EA sites normally only have a ~750kW transformer. They are paired stalls, where 350kW is shared between two stalls. (They called it "balanced".) They don't have a dedicated 350kW available per 350kW stall.
That would trigger the requirements for new building permits, planning board approvals etc.
Former electric company employee DFW here. We typically load transformers to 130% nameplate in the summer and 160% winter. Besides, the transformer is really heavy and so takes a long time to heat up. Since EV's only use the max charge power for ~10 minutes or so, it's not a big deal. We also used readings from the meters connected to the transformer to be able to tell when the transformer is overloaded.
Most 4-stall EA I've been at are 150 350 350 150. But Kittery, ME is 4 x 150. (I was charging at #2 in Kittery, and offered to swap with a waiting EV6 when #4 became available, but then realized it was all 150). 4 stalls, 8 cables no power sharing is so frustrating.
It depends on the vehicle. On the refresh S&X it really does, they hold ~250kW from 7-31%. They don't drop below 150kW until 50%.
But does it actually save more than a minute or two? Does anyone know if the 150 kw line would extend horizontally to 60% before declining if not charged at 240 kw+ for a few minutes?
That all depends on what SoC you are at and how many miles you need to add. If you only need ~115 miles added it would be ~60% of the time of 150kW. (9 minutes instead of 15.)
Well, V2s, i.e. 150kW, suffer from sharing with a single other post or they become ~75kW. (Where V3s share power across the site instead of just with a single post.)
