The current power grid doesnt have the capacity to produce enough electricity for much transportation to be powered via electricity.
Also, if we use natural gas to fuel additional electricity, we will be paying a fortune to heat & cool homes.
If we use current coal technology for new electricity, we will be gagging with pollution like the Chinese.
People act as if we can just turn on a switch and all the electricity, oil, gas we ever need will suddenly appear.
jdog posted it best...its too late for this not to become a major problem and its at least a decade before viable solutions are going to be widely available.
nuclear is the answer, but that also takes many years to become fully operational.