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Electricity Monthly Update

With Data for September 2016  |  Release Date: Nov. 29, 2016  |  Next Release Date: Dec. 23, 2016

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Electric Power Sector Coal Stocks: September 2016

 



In September, U.S. coal stockpiles decreased to 158 million tons, down 1.4% from the previous month. This small decrease in total coal stockpiles deviates slightly from the normal seasonal pattern whereby historically, coal stockpiles have begun to increase in September.

Days of burn




The average number of days of burn held at electric power plants is a forward-looking estimate of coal supply given a power plant's current stockpile and past consumption patterns. For bituminous units largely located in the eastern United States, the average number of days of burn increased from 89 days of burn in August to 92 days of forward-looking days of burn in September. For subbituminous units largely located in the western United States, the average number of days of burn increased, going from 84 days in August to 87 days in September.

Coal stocks and average number of days of burn for non-lignite coal by region (electric power sector)

  September 2016   September 2015   August 2016  
Zone Coal Stocks (1000 tons) Days of Burn   Stocks (1000 tons) Days of Burn % Change of Stocks Stocks (1000 tons) Days of Burn % Change of Stocks
Northeast Bituminous 5,487 95   6,924 102 -20.8% 5,291 98 3.7%
  Subbituminous 136 97   758 201 -82.0% 153 131 -10.7%
South Bituminous 27,339 88   31,931 89 -14.4% 27,916 84 -2.1%
  Subbituminous 5,631 68   5,586 62 0.8% 5,899 67 -4.5%
Midwest Bituminous 16,549 99   15,023 82 10.2% 16,831 99 -1.7%
  Subbituminous 40,862 84   38,090 69 7.3% 40,679 82 0.4%
West Bituminous 5,885 84   5,378 73 9.4% 5,715 79 3.0%
  Subbituminous 30,830 95   32,155 90 -4.1% 31,529 92 -2.2%
U.S. Total Bituminous 55,260 92   59,256 87 -6.7% 55,753 89 -0.9%
  Subbituminous 77,459 87   76,588 77 1.1% 78,259 84 -1.0%

Source: U.S. Energy Information Administration

NOTE: Stockpile levels shown above reflect a sample of electric power sector plants, which were used to create the days of burn statistics. These levels will not equal total electric power sector stockpile levels.

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