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Modernizing the U.S. electrical grid is a task that will most likely take decades to complete. At least we're getting started now, with more than two million smart meters installed nationwide, according to the

Right now, plug-in vehicles can operate just fine using standard outlets and infrastructure. Sure, they like higher voltage outlets to charge in less time, but if you can charge your cell phone you can – somehow, maybe with a little effort – charge your car. The big promise of plug-in vehicles, though, is how they will interact with the coming smart grid to lower prices and make the grid a more stable thing. Well, that is, if said smart grid ever arrives.