This is the format used by most areas. It has a four-digit area code (after the initial zero) and a six digit subscriber number, and is known as 4+6 format. These area codes were changed by adding a 1 directly after the initial zero as a part of PhONEday in 1995. Just short of 581 areas use this format, and the area codes range from 01200 to 01998.
For calendar year 2016, wind power in the United States amounted to 226.5 terawatt-hours, or 5.55% of all generated electrical energy. As of January 2017, the U.S. nameplate generating capacity for wind power was 82,183 megawatts (MW). This capacity is exceeded only by China and the European Union. Thus far, wind power's largest growth in capacity was in 2012, when 11,895 MW of wind power was installed, representing 26.5% of new power capacity.
The adoption of wind energy globally has changed dramaically since the 1980's when California was home to 90% of the world's installed wind energy capacity. In fact, the global wind industry has seen 44 percent year-on-year growth, with a total of 369,553 MW of operating wind capacity today.In 2014, the United States represented 17.8% of the world's installed wind energy capacity, second only to China, and followed by Germany, Spain, and India.ind power captures the natural wind in our atmosphere and converts it into mechanical energy then electricity. People started using wind power centuries ago with windmills, which pumped water, ground grain, and did other work.