Renewable energy is gaining steam in the oil-thirsty U.S. market, but green tech has hurdles to clear before it can take a bigger slice of the pie.
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Sources:
U.S. Energy Information Administration
http://www.eia.gov/totalenergy/data/m...
U.S. Energy Information Administration
http://www.eia.gov/energyexplained/in...
U.S. Energy Information Administration
http://www.eia.gov/forecasts/aeo/pdf/...
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