Energy consumption in 2003 in U.S. Table 1.1 U.S. Energy Consumption in 2003 Source Amount OBtm Percent I QBtu Equiv Coal 1.08×10 9 tons 22.6 23.0 47.8×10°tons Natural gas 218×1012t3 22.5 22.9 097×1012ft Petroleum 6.72×10bbl 39.1 398 172×10bbl N uclear elcc 757×10°kWh 797 8.1 95×10kWh Renewables 578×10kWh 6.15 6.3 94×10kWh Total 98.3 复旦大学环境科学与工程系 Department of Environmental Science and Engineering, Fudan UniversityEnergy consumption in 2003 in U.S