Let’s assume that they have an energy-storage device that stores as much energy in the same volume as a tank of gasoline, and gives electricity to drive the motors of an electric car.
The real problem then becomes transferring energy to the storage device.
I have read that, when you fill up a gas tank, you are transferring chemical energy into it at a rate of something like 2 megawatts.
If the company is proposing to refill its storage devices at the same rate, either they’re swapping discharged contents for charged contents (which implies a totally new infrastructure at and behind each ‘fueling’ station to handle the contents and recharge them)… or, it’s proposing to pump electricity into them at a rate of megawatts, which implies a Really Big Plug, at the least, plus new electrical infrastructure.
:: reads article ::
Okay, they’re talking about ultracapacitors.
Hope the’re robust and can handle the bangs and jiggles of life on the road… and that their leakage rate is low. But to recharge them in a reasonable amount of time is going to require the Really Big Plugs I mentioned.
Mind you, even smaller ultracaps might be very useful. I’m thinking laptop batteries here…