Energy intensity in manufacturing in the U.S. decreased from 2010 to 2014. U.S. manufacturing overall fuel intensity decreased by 4.4% from 3.016 thousand British thermal units (Btu) per dollar of output in 2010 to 2.882 thousand Btu in 2014. According to the Manufacturing Energy Consumption Survey (MECS), U.S. manufacturing fuel consumption rose 4.7% from 2010 to 2014, although real gross output increased more rapidly at 9.6%.
Generally, the most energy-intensive U.S. industries' share of manufacturing gross output declined from 2010 to 2014 (35.1% of total manufacturing to 32%), although they maintained the same share of fuel consumption (80.7%). The group of energy-intensive industries as a whole actually increased in energy intensity by 4.6% as the rest of manufacturing decreased by 8.5%. The shift in output toward less energy-intensive manufacturing contributed to the decline in overall manufacturing energy intensity in the U.S.