Changes

===Coal, Electricity, and Renewables===

===Coal, Electricity, and Renewables===

Natural gas-fired power plants typically account for about one-half of the electricity produced in Texas and coal-fired plants account for much of the remaining generation. Although Texas produces a substantial amount of coal from 13 surface mines, including five of the 50 largest in the United States, the State relies on rail deliveries of subbituminous coal from Wyoming for the majority of its supply. Nearly all of the coal mined in Texas is lignite coal, the lowest grade of coal, and all of it is consumed in the State, mostly in arrangements where a single utility operates both the mine and an adjacent coal-fired power plant. Although lower in energy content than other varieties of coal, lignite coal is also low in sulfur, an important consideration in the State’s efforts to lower emissions.  

Natural gas-fired power plants typically account for about one-half of the electricity produced in Texas and coal-fired plants account for much of the remaining generation. Although Texas produces a substantial amount of coal from 13 surface mines, including five of the 50 largest in the United States, the State relies on rail deliveries of subbituminous coal from Wyoming for the majority of its supply. Nearly all of the coal mined in Texas is lignite coal, the lowest grade of coal, and all of it is consumed in the State, mostly in arrangements where a single utility operates both the mine and an adjacent coal-fired power plant. Although lower in energy content than other varieties of coal, lignite coal is also low in sulfur, an important consideration in the State’s efforts to lower emissions. Texas consumes more coal than any other State and its emissions of carbon dioxide and sulfur dioxide are among the highest in the Nation.  

Texas is a major nuclear power generating State. Two nuclear plants, Comanche Peak and South Texas Project, typically account for about one-tenth of the State’s electric power production, an extremely positive aspect of nuclear energy. Until the recent uprating (capacity improvement) of the Number 2 reactor at Palo Verde in Arizona, the two South Texas Project nuclear reactors were the largest in the Nation.  

Texas is a major nuclear power generating State. Two nuclear plants, Comanche Peak and South Texas Project, typically account for about one-tenth of the State’s electric power production. Until the recent uprating (capacity improvement) of the Number 2 reactor at Palo Verde in Arizona, the two South Texas Project nuclear reactors were the largest in the Nation.  

Although renewable energy sources contribute minimally to the Texas power grid, Texas leads the Nation in wind-powered generation capacity, and substantial new wind generation capacity is under construction in Texas. Texas surpassed California as the country’s largest wind energy producer in 2006. Currently, there are over 2,000 wind turbines in West Texas alone, and the numbers continue to increase as development costs continue to drop and wind turbine technology improves. At 736 MW, the Horse Hollow Wind Energy Center in central Texas is the largest wind power facility in the world.  

Although renewable energy sources contribute minimally to the Texas power grid, Texas leads the Nation in wind-powered generation capacity, and substantial new wind generation capacity is under construction in Texas. Texas surpassed California as the country’s largest wind energy producer in 2006. Currently, there are over 2,000 wind turbines in West Texas alone, and the numbers continue to increase as development costs continue to drop and wind turbine technology improves. At 736 MW, the Horse Hollow Wind Energy Center in central Texas is the largest wind power facility in the world.