Smart Electric Grid

Burgeoning global growth is set to ignite a $37 trillion revolution in the energy market. And while the transformation is going to take decades, firms are already beginning to capitalize on it.The world economy is forecast to nearly quadruple in size in the next half century, according to Citigroup (NYSE:C) and the OECD. That rapid expansion, two-thirds of which will likely come from emerging countries, is going to take lots of power. And as it stands, many of these developing economies are particularly inefficient at converting energy into economic output. That means the countries that will be producing an outsize portion of global economic expansion waste the most energy as they grow.Of course, entrepreneurs will step in to leverage the inefficiency – seeking to make a profit while doing it. In fact, in a recent research report, analysts at Citigroup called the coming changes an "investment megatrend."  The banking giant sees $37 trillion being invested between now and 2035 in a broa...

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