Energy policy of the United States
U.S. wind power installed capacity now exceeds 65,000MW. For calendar year 2014, the electricity produced from wind power in the United States amounted to 181.79 terawatt-hours, or 4.44% of all generated electrical energy. Texas is firmly established as the leader in wind power development, followed by Iowa and California.
Natural gas in the United States
In the decade 2005 to 2015, electricity generated by natural gas increased by 574 billion kilowatt-hours, more than triple the increase of the second-fastest-growing source, wind energy, which increased 173 billion kilowatt-hours over the same period. Natural gas-generated electricity increased its share of total US electricity from 18.8 percent in 2005, to 32.6 percent in 2015. The increase in gas-generated electricity was mostly at the expense of coal power, which fell from 49.6 percent of US electricity in 2005, to 33.2 percent in 2015. Natural gas surpassed coal as the number one generator of US electricity in late 2015. During the 12-month period through August 2016, natural gas generated 34.5 percent of US electricity, versus 29.8 percent for coal.