Reuters: Italy’s biggest utility, Enel, will launch two geothermal plants with a total capacity of 65 megawatt (MW) in Nevada in the first quarter of 2009 aiming to expand in the U.S. renewable energy market, it said on Monday. The plants will produce about 400 million kilowatt hours of energy a year, enough to meet demands of about 40,000 U.S. households and reduce annual emissions of heat-trapping carbon dioxide by 300,000 tonnes, Enel said in a statement. Enel, which operates about …