[checker]

I'm not very experienced in electronics, but couldn't you constantly store the source electricity in some sort of storage (battery, capacitors) and then dump it quickly into cars? This may not be feasible due to the efficiencies or safety factors involved, but the car wouldn't necessarily have to draw directly from the source line. The recharging stations could draw line power to recharge their storage overnight while the use of their charging terminals is low. However, I imagine the storage would be extremely pricey for the home market.

[aidenn0]

The most economical way of storing electrical energy on-site is probably the lead-acid battery. Enough lead-acid batteries to store 100 car recharges would be 1200 cubic meters. I found estimates from $0.17 to $0.50 per watt hour which would put the cost at over $1M to handle 100 car recharges. Charging that up continuously would put the energy requirements at 440kW assuming 80% round-trip efficiency.

[checker]

Thanks for the numbers. It looks like we still need plenty of breakthroughs or drastic shifts in society for this to be realistic.