Intro -- GEOTHERMAL ENERGY: THE RESOURCE UNDER OUR FEET -- GEOTHERMAL ENERGY: THE RESOURCE UNDER OUR FEET -- CONTENTS -- PREFACE -- Chapter 1 GEOTHERMAL - THE ENERGY UNDER OUR FEET, GEOTHERMAL RESOURCE ESTIMATES FOR THE UNITED STATES -- EXECUTIVE SUMMARY -- INTRODUCTION -- Resource Definitions -- DESCRIPTION OF GEOTHERMAL RESOURCE CATEGORIES -- Hydrothermal -- Deep Geothermal Systems -- Direct Use -- Geothermal Heat Pumps -- Geopressured Resources -- Co-Produced Geothermal Fluids -- Process Used -- Energy Comparison Information -- Energy Equivalents -- APPENDICES -- Present Development -- Benefits -- Profile of a Geothermal Project -- LIST OF WORKSHOP PARTICIPANTS AND STAFF -- Hydrothermal -- EGS -- Direct Use -- Co-Produced (combined w/Geo-Press.) -- Geopressured -- Geothermal Heat Pumps -- DOE, INL, and NREL Staff -- Observers -- Facilitators -- HOW ENERGY EQUIVALENT CALCULATIONS WERE MADE -- SUPPORTING DOCUMENTS -- NOTICE -- Chapter 2 STATEMENT OF SUSAN PETTY, PRESIDENT-ALTAROCK ENERGY, INC., BEFORE THE SENATE COMMITTEE ON ENERGY AND NATURAL RESOURCES, REGARDING SENATE BILL 1543, NATIONAL GEOTHERMAL INITIATIVE ACT OF 2007 -- SUMMARY -- Chapter 3 2008 GEOTHERMAL TECHNOLOGIES MARKET REPORT -- ACKNOWLEDGMENTS -- EXECUTIVE SUMMARY -- Major 2008 Highlights -- 1. INTRODUCTION -- 2. INVESTMENT -- The 2008 Geothermal Technologies Program: 44M for EGS RD&D -- Investments in Geothermal Energy on the Rise -- 3. State of Power Generation & Current Activity in the U.S. -- Geothermal Industry Participants Increase Substantially in 2008 -- GTP 2008 Funding Opportunity Announcement Receives the Largest Number of Applicants in the Program's History -- U.S. Geothermal Capacity Increases by 3.8% in 2008 -- USGS Releases the First National Geothermal Assessment in More than 30 Years (September 2008).