Of course there is a limit. One needs a chemical reaction to generate the electric potential. We seem to be reaching inherent limits in this. Most of the new really good ones aren't reversible ie. the battery can't be recharged. There is a reason lead-acid batteries are still the standard used in cars, boats, and airplanes.
The ability to store charge in a capacitor is limited by the voltage at which the dielectric breaks down. New materials are needed but even so caps are lousy as current sources.
Duh. It also a widely available fuel for electric generation, which functions best in large scale plants.
For the moment in this country. Don't read that into the rest of the world which isn't so silly.
Yes, in fact, they have the potential to reduce fossil fuel consumption for electric generation significantly.
No, it isn't. The batteries weigh too much for the energy delivered, not to mention that used batteries are an evironmental hazard.
Of course it is. It's only light-sweet crude which seems to be peaking in production.
-- Republican Health Plan: Don't Get Sick
Guantanamo: The Gulag of Our Time
