Utility demand charges are a bitch.
50kVA for a fast charger, I have read. That implies 69kVA source for circuit sizing and generate/transform/rectify efficiency (idk, 90%?) 334A at 208V per car, I guess.
More than 5 MW with all spaces full and 3/4 in charging state. They could not afford to fill the lot on utility power. They would also need a capacitor bank to treat 5MW of reactive load.
EE bros check my estimate.
Utility demand charges are a bitch.
50kVA for a fast charger, I have read. That implies 69kVA source for circuit sizing and generate/transform/rectify efficiency (idk, 90%?) 334A at 208V per car, I guess.
More than 5 MW with all spaces full and 3/4 in charging state. They could not afford to fill the lot on utility power. They would also need a capacitor bank to treat 5MW of reactive load.
EE bros check my estimate.
That's a good estimate, and that's two houses worth of full load for one car.
That's a good estimate, and that's two houses worth of full load for one car.
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