About how much % of the United states power is Geothermal? How much in the whole world?

Answer 1

http://www.eere.energy.gov/news/news_detail.cfm/news_id=9858
Reported March 2006: geothermal power plants supply about 0.35 percent of the electricity used in the United States. New geothermal power projects in seven western states plus Alaska and Hawaii could significantly increase the U.S. production of electricity from geothermal resources, according to the Geothermal Energy Association (GEA)

"According to a 2005 ENEL report, geothermal supplies 8900 MW to 24 countries worldwide. Geothermal energy today meets the total electricity needs of some 60 million people worldwide — roughly the population of the United Kingdom.
Since 2000, geothermal generation has tripled in France, Russia, and Kenya. Three new countries—Austria, Germany, and Papua New Guinea—have been added to the list of those producing power. Countries as diverse as the Philippines, Iceland, and El Salvador generate an average of 25 percent of their electricity from geothermal sources, and geothermal serves 30 percent of Tibet’s energy needs. The United States continues to produce more geothermal electricity than any other country, comprising some 32 percent of the world total.": http://www.geo-energy.org/aboutGE/currentUse.asp#world