Colorado's National Renewable Energy Laboratory (NREL) based in Golden, is the home of the nation's only large-scale pilot plant for the production of ethanol from biomass. Engineers and scientists at NREL lead the way in research on renewable energy technologies, from photovoltaics (solar cells) to wind to renewable fuels. NREL received a surge of media attention early this year when 32 staff positions were eliminated and then hastily reinstated just in time for President Bush's visit to NREL in February. All of this followed the president's State of the Union address in which he announced that "America is addicted to oil" and pledged a 22 percent increase in investments into clean energy. NREL's Andy Aden told LIME about the promises and limitations of cellulosic ethanol.