WASHINGTON, Feb. 8 -- The U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy announced that it expects to award up to four cooperative agreements for geothermal drilling technology developments. The agency description of the cooperative agreement states: "This Funding Opportunity Announcement (FOA) is being issued by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Geothermal Technologies Office (GTO). The mission of GTO is to  more