Yeah, I'm rather doubtful about anything Fisker says after the debacle that was the Karma...
The big factor with these "500 miles on a charge, 1 minute to recharge" is the truly insane
amount of energy delivery that would be needed. Even if we assume an ultra-efficient system, where they could get 500 miles on, say, 75 kWh of juice, that would require 4.5 MEGA
watts of energy to be pumped in to it to recharge in 1 minute.
According to Madison Gas & Electric
, the average office building is 15,000 square feet, and uses 17.3 Kilowatt-hours per square foot per year. For an average constant energy usage of 29.62 Kilowatts. That's right, to recharge 75 kWh in 1 minute, you'd need to supply enough energy to power 155 average office buildings.
Without *MAJOR* improvements to the electricity infrastructure, you'd cause major brownouts any time you tried to recharge one of those. (Or else the charging stations would need large battery banks, with long breaks between charging cars.) Even Tesla's upcoming "Megacharger" for their upcoming Semi is only 1.6 Megawatts. (And will likely have banks of batteries behind them, and be only in extremely-high-energy-availability areas.)
I just can't imagine a setup where a recharging station for a sedan has as much energy flowing to it as will be used by three recharging semis at an electrified truck stop.