Average residential electricity prices in the U.S. rose to 13.55 cents per kilowatt hour (kWh) in the December Choose Energy Rate Report. That represented an increase of 1.8 percent month-over-month. But prices were volatile with both a double-digit percentage increase and double-digit percentage decreases. They even affect electricity bills differently by state.
The Rate Report reflects the latest data from the U.S. Energy Information Administration. The December edition reflects rates from September.
The largest percentage rate increase came in Nevada, where the price/kWh rose 10.9 percent from the November report to 11.97 cents/kWh. That actually was the 14th lowest in the U.S.
Following are the states where rates increased by the largest percentage.