Electric power prices were down in most regions during 2011, compared with the previous year’s levels, Federal Energy Regulatory Commission staff reported.

The decreases in on-peak electric spot prices—by an average of 0.5 percent nationwide—stemmed primarily from natural gas spot prices, Office of Enforcement representatives said in their 2011 State of the Markets Report. Gas prices fell to levels not seen since the early 2000s, they told FERC’s April meeting.

Electric prices in the East were 3 to 12 percent lower than in 2010, staff reported, and were down 7 to 19 percent in the West, supported by robust hydroelectric output.

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