Would there be an energy crisis if...
etal: The cheapest energy source right now is coal, even if carbon-offset costs are factored in. So it would be cheaper to do the electric car thing right now with the existing power sources than with the nuclear option -- but we haven't done that, because electric car designs aren't quite ready yet, and because the demand for raw materials for all those new lithium-ion batteries would push the cost through the roof. (That actually happened this year with laptop batteries, somewhat.)But yes, nuclear power stands a better chance of being able to fully replace fossil fuels than most of the other options in the next few decades.