contexts: Coal power in the United States accounted for 39 % of the country 's electricity production at utility - scale facilities in 2014 , 33 % in 2015 , and 30.4 % in 2016 Coal supplied 16.5 quadrillion BTUs of primary energy to electric power plants in 2013 , which made up nearly 92 % of coal 's contribution to energy supply . Utilities buy more than 90 percent of the coal consumed in the United States .
name: Coal power in the United States
answers.input_text: short
answers.span_text: 16.5 quadrillion BTUs
questions.input_text: how much energy does coal produce in the us