Smarter Grid: Greening the Largest Machine on Earth

In the last couple years the Obama administration has pumped billions into cutting-edge clean energy tech. But these all share a common problem: plugging into an electric grid that is mostly unchanged since the 1930s. Energy experts say meeting our carbon-footprint reduction goals will remain a pipe dream until we can revamp electricity distribution. The solution? The "smart grid," a nickname for a sweeping series of updates on everything from power stations to the meter in your home, which promises to save power and money by being sensitive to your energy use.

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