Shale gas has changed substantially how America generates electricity by crashing the price of natural gas and making it competitive with coal. From 2007 to 2012, the portion of our nation's electricity coming from gas-fired power plants has risen from 22% to 31%, with most of that gain coming at the expense of coal. In fact, natural gas's electricity generation market share rose 41% during just the last 5 years.
Made possible by the shale gas boom, low-gas prices means more gas usage. In turn, more gas usage produces less carbon and toxic air pollution and stable or falling electricity prices in many parts of the USA. The rise of gas has brought cleaner and cheaper electricity than what preceded it. Those are important facts.