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Electricity Monthly Update

With Data for August 2026 Release Date: October 23, 2026 Next Release Date: November 24, 2026

Electric Power Sector Coal Stocks: August 2026


Total U.S. coal stockpiles decreased by 5.9% to 102 million tons compared to the previous month. This month-over-month decrease in coal stockpiles is normal during the summer months when coal power plants operate more and use up their stockpiles to meet summer electricity demand.

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 127 days of forward-looking days of burn in July 2026 to 125 days of burn in August 2026. For subbituminous units largely located in the western United States, the average number of days of burn remained unchanged from the previous month at 119 days of burn in August 2026.

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

    August 2026 August 2025   July 2026  
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 1,342 155 1,399 156 -4.1% 781 127 71.7%
  Subbituminous . . . . . . . .
South Bituminous 16,416 121 16,576 127 -1.0% 17,865 126 -8.1%
  Subbituminous 4,840 79 5,424 90 -10.8% 5,331 74 -9.2%
Midwest Bituminous 9,220 114 8,936 105 3.2% 9,237 113 -0.2%
  Subbituminous 28,561 112 24,184 102 18.1% 30,153 108 -5.3%
West Bituminous 2,279 307 2,745 149 -17.0% 2,285 310 -0.3%
  Subbituminous 26,405 141 28,554 147 -7.5% 28,891 148 -8.6%
U.S. Total Bituminous 29,256 125 29,656 123 -1.4% 30,169 127 -3.0%
  Subbituminous 59,807 119 58,162 117 2.8% 64,375 119 -7.1%

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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