Choose Energy Provides Full Picture of Electricity Rates by State

Choose EnergyEnergy 101How It WorksChoose Energy Provides Full Picture of Electricity Rates by State

Which state has the lowest electricity supply rates? There’s now an easy way to tell each month.’s new Electricity Rates by State page gives a complete rundown on average electricity supply rates across the country.

Our analysts crunched the numbers from June 2016 to May 2017, the most recent available. The lowest rates for electricity supply come in Louisiana, where it costs 9.2 cents per kilowatt hour – often abbreviated as kWh. Why are Louisiana rates so low? The state is a hub for refineries, pipelines and has port capacity for the largest tankers.

What are the states with lowest annual rates for electricity supply for residential users? Here they are, according to the U.S. Energy Information Administration:

Rank State Price (cents per/kWh) Cost per avg. household *
1 Louisiana 9.2 $82.89
2 Washington 9.5 $85.60
3 Idaho 10.0 $90.10
4 Arkansas 10.0 $90.10
5 Oklahoma 10.4 $93.70

*Cost based on average consumption of 901 kWh/month, doesn’t account for the cost of transmission and delivery.

The biggest changes month-over-month

Prices went up the most in California, where they increased 29.8 percent from April. Rounding out the top 5 were North Dakota, 9.7 percent; Missouri, 8.7 percent; Delaware, 8.4 percent; and Iowa, 7.5 percent.

Prices fell 13.7 percent in Rhode Island, the largest drop. The rest of the top 5: Oklahoma, 9.2 percent; Hawaii, 4.2 percent; Massachusetts, 3.2 percent; and Indiana, 2.1 percent. will update the chart every month.