U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
Electricity Monthly Update
With Data for August 2015 | Release Date: Oct. 27, 2015 | Next Release Date: Nov. 30, 2015
Electric Power Sector Coal Stocks: August 2015
In August, U.S. coal stockpiles decreased to 158 million tons, down 1% from the previous month. This decrease in July-to-August coal stockpiles follows the normal seasonal pattern whereby coal stockpiles decrease during the summer months. Despite this decrease, coal stockpiles are still at relatively high levels due to a loss in market share to natural gas in all regions of the country.
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 77 days to 83 days of forward-looking days of burn estimates. For subbituminous units largely located in the western United States, the average number of days of burn also increased, going from 66 days in July to 73 days in August. The percentage of bituminous and subbituminous coal-fired capacity having less than 30 days of burn decreased from the previous month, going from 8.8% in July to 6.8% in August. This is a much lower percentage than last August, when over 22% of units had less than 30 days of burn.
Coal stocks and average number of days of burn for non-lignite coal by region (electric power sector)
|August 2015||August 2014||July 2015|
|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|
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.