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Electricity Monthly Update

With Data for July 2017  |  Release Date: September 26, 2017  |  Next Release Date: October 24, 2017

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Electric Power Sector Coal Stocks: July 2017

 



In July, U.S. coal stockpiles decreased to 148 million tons, down 7.8% from the previous month. This significant decrease in total coal stockpiles is a normal occurance during the summer as the country enters into the warmer months of the year when demand for electricity is greater.

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 74 days of burn in June to 76 days of forward-looking days of burn in July. For subbituminous units largely located in the western United States, the average number of days of burn increased from 71 days in June to 72 days in July.

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

  July 2017   July 2016   June 2017  
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 3,915 72   6,341 115 -38.3% 4,506 72 -13.1%
  Subbituminous 129 166   163 134 -20.9% 136 193 -5.5%
South Bituminous 28,498 75   30,410 79 -6.3% 31,009 71 -8.1%
  Subbituminous 5,709 55   6,510 69 -12.3% 6,216 58 -8.2%
Midwest Bituminous 13,750 76   17,322 92 -20.6% 15,249 79 -9.8%
  Subbituminous 38,044 73   42,815 78 -11.1% 40,987 72 -7.2%
West Bituminous 5,576 82   5,689 75 -2.0% 5,779 83 -3.5%
  Subbituminous 28,432 74   33,520 85 -15.2% 30,245 73 -6.0%
U.S. Total Bituminous 51,738 76   59,762 86 -13.4% 56,543 74 -8.5%
  Subbituminous 72,313 72   83,007 80 -12.9% 77,585 71 -6.8%

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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