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Electricity Monthly Update

With Data for April 2018  |  Release Date: June 25, 2018  |  Next Release Date: July 24, 2018

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Electric Power Sector Coal Stocks: April 2018

 



In April 2018, U.S. coal stockpiles increased to 129 million tons, up 2% from the previous month. This increase in total coal stockpiles follows the normal seasonal pattern, whereby coal stockpiles increase during the shoulder months of spring so that they can be consumed during the summer months when the demand for electricity generation 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 decreased from the previous month, going from 90 days of forward-looking days of burn in March 2018 to 80 days of burn in April 2018. For subbituminous units largely located in the western United States, the average number of days of burn also decreased compared to the previous month, going from 99 days of burn in March 2018 to 90 days of burn in April 2018.

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

  April 2018   April 2017   March 2018  
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 3,332 88   4,712 81 -29.3% 3,486 100 -4.4%
  Subbituminous 79 233   145 226 -45.2% 110 278 -27.7%
South Bituminous 23,749 78   32,491 82 -26.9% 22,824 88 4.1%
  Subbituminous 7,259 75   6,518 71 11.4% 5,824 75 24.6%
Midwest Bituminous 10,838 76   15,357 89 -29.4% 10,838 84 0.0%
  Subbituminous 33,992 95   43,634 88 -22.1% 33,806 105 0.5%
West Bituminous 4,976 102   5,924 90 -16.0% 4,763 110 4.5%
  Subbituminous 27,300 88   32,205 89 -15.2% 26,364 99 3.6%
U.S. Total Bituminous 42,985 80   58,484 84 -26.5% 42,120 90 2.1%
  Subbituminous 68,631 90   82,501 87 -16.8% 66,104 99 3.8%

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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