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Electricity Monthly Update

With Data for August 2017  |  Release Date: October 24, 2017  |  Next Release Date: November 27, 2017
Re-release date: October 25, 2017   |   Revision

Previous Issues

End Use: August 2017


Retail rates/prices and consumption

In this section, we look at what electricity costs and how much is purchased. Charges for retail electric service are based primarily on rates approved by state regulators. However, a number of states have allowed retail marketers to compete to serve customers and these competitive retail suppliers offer electricity at a market-based price.

EIA does not directly collect retail electricity rates or prices. However, using data collected on retail sales revenues and volumes, we calculate average retail revenues per kWh as a proxy for retail rates and prices. Retail sales volumes are presented as a proxy for end-use electricity consumption.

Average revenue per kWh by state



Average revenue per kilowatthour figures decreased in 13 states and the District of Columbia in August compared to last year. The largest declines were found in the District of Columbia (down 3.7%), Michigan (down almost 2.8%), and New Jersey (down almost 2.7%). Thirty seven states increased revenue per kilowatthour compared to last year, led by Massachusetts (up 6.2%), Mississippi (up 6.15%), and Connecticut (up just over 6%).


Total average revenues per kilowatthour were up 1.4% to 10.98 cents in August compared to last year. All sectors were up on the month, with the Commercial sector leading at 3.1%. The Residential and Transportation sectors followed with 2.2% and 1.8% increases, respectively. Retail sales were down 5.3% for the month. The Residential sector showed the greatest decline, down 9.1%. The Commercial sector followed with a 4.8% drop. The Transportation and Industrial sectors rose slightly, up 1.5% and 0.9%, respectively.

Retail sales



State retail sales volumes were down in 41 states and the District of Columbia in August compared to last year. Maryland showed the largest year-over-year decline, down 14.4%. New Jersey and Illinois had the next largest declines, down 14% and 13.5%, respectively. Nine states had retail sales volume increases in August, led by Montana (up 4.3%), Oregon (up 2.8%), and Utah (up 2.6%).


Cooling Degree Days (CDD) were down in 43 states and the District of Columbia compared to last August. The largest year-over-year decrease was found in Wisconsin. It had a decrease of 127 CDDs, just over 65%. Also in the region, second-place Michigan had a 151 CDD-decrease (over 59%) from August 2016. Eight other states had a decrease of over 50% in CDDs: Massachusetts, New Hampshire, Pennsylvania, Indiana, Illinois, Ohio, Rhode Island, and Maine. This was due to milder weather in those regions compared with last August. Seven states had an increase in CDDs from the prior year, led by Alaska (up 100%), Montana (up 19%), Oregon (up 17.7%), and Idaho (up 15%).

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