When an extreme winter storm tore through Texas earlier in 2021, the widespread power outages that followed put a microscope on how electricity is produced and generated. A state that prides itself on its critical role in the energy economy—both as a source of traditional fossil fuel energy sources like oil and a growing hotspot for renewables like wind and solar—had its electric grid completely crippled for days. Stories emerged of customers being billed thousands of dollars for using the state’s limited supply of electricity in the storm’s aftermath. The situation became a flashpoint for a longer-running debate in the state (and beyond) over whether renewables or fossil fuels were a more dependable source of energy.

Despite the renewed political back and forth over energy production in the wake of the Texas storm, the overall trends in the U.S. energy sector are undeniable: renewables will be the fastest-growing contributor to electricity production in the U.S. in the decades to come. Government incentives and technological advancements in the renewable sector have lowered costs and improved reliability in recent years, and low costs will spur increased adoption of the newer technologies.

Electricity from renewables is projected to account for more than 40% of electricity generation by 2050

Data from the U.S. Energy Information Administration show that renewables currently represent around 21% of electricity generated in the U.S. By 2050, that figure is expected to double. Meanwhile, natural gas will decline slightly from 40% to 36% of electricity production over the same span. And the respective shares of electricity generated from nuclear and coal will be nearly cut in half.

The increased use of renewable sources will also pass on savings to consumers. The cost of electricity is also projected to decline in the next three decades, albeit gradually. The 2021 cost of electricity per kilowatt-hour currently averages around 10.5 cents across all sectors; that number will drop to 9.6 cents by 2050. And this trend will not be limited to any one sector: cost projections for electricity in the residential, commercial, industrial, and transportation sectors all show the same downward trend. Customers can expect to see a reduction in retail prices across the energy sector spectrum as the cost of electricity generation declines.

As the cost of electricity generation is projected to decline, so too will retail prices

Some parts of the country could feel more of the benefit than others as costs decline. By one measure—average monthly residential electricity bill—most of those beneficiaries will be in the Southeastern U.S. The main factor driving costs in the Southeast is greater use of electricity throughout the year compared to other regions. Warmer weather in the summer means high bills from air conditioning, and in the winter, Southeastern households are more likely to heat their homes with electricity than with other sources like natural gas or fuel oil. While these factors suggest that consumption levels will remain high, customers in the Southeast will benefit from electricity’s lower unit costs.

Another way to evaluate the different costs between states is to look at the average per kilowatt-hour cost of electricity across all sectors. On this measure, one of the key factors driving disparities between states is whether the state must import fuel or energy to supply their electricity. The most expensive states include the geographically remote Hawaii and Alaska, along with New England states that have largely retired old coal and nuclear facilities in recent years and rely on imported natural gas for electricity. In contrast, states where electricity prices across sectors are cheap tend to have nearby resources for electricity production, whether that be natural gas, coal, or a strong renewables sector.

Residents in the Southeast US have the biggest electricity bills per capita


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To find the states with the most and least expensive electricity, researchers at Porch used information from the U.S. Energy Information Administration and ranked states based on the average electricity price for all sectors in cents per kilowatt-hour (kWh). In the event of a tie, the state with the greater residential price for electricity was ranked higher.

Here are the states with the most and least expensive electricity.

The 10 states with the most expensive electricity

Honolulu, Hawaii. Waikiki beach and Honolulu's skyline
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1. Hawaii

  • Average electricity price for all sectors: 28.72¢ per kWh
  • Residential price: 32.06¢ per kWh
  • Average monthly residential bill: $168.21
  • Average monthly consumption: 525 kWh

Full moon and mountains near by the Port Of Anchorage in Alaska, USA
Photo Credit: Alamy Stock Photo

2. Alaska

  • Average electricity price for all sectors: 20.22¢ per kWh
  • Residential price: 22.92¢ per kWh
  • Average monthly residential bill: $127.29
  • Average monthly consumption: 555 kWh

 


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Sheffield Island Lighthouse, Norwalk Connecticut, USA
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3. Connecticut

  • Average electricity price for all sectors: 18.66¢ per kWh
  • Residential price: 21.87¢ per kWh
  • Average monthly residential bill: $150.71
  • Average monthly consumption: 689 kWh

Aerial panorama of Providence, Rhode Island
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4. Rhode Island

  • Average electricity price for all sectors: 18.49¢ per kWh
  • Residential price: 21.73¢ per kWh
  • Average monthly residential bill: $121.62
  • Average monthly consumption: 560 kWh

The Highland Lighthouse against a beautiful sunset in North Truro Massachusetts on the Cape Cod National Seashore
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5. Massachusetts

  • Average electricity price for all sectors: 18.40¢ per kWh
  • Residential price: 21.92¢ per kWh
  • Average monthly residential bill: $125.89
  • Average monthly consumption: 574 kWh

Portsmouth, New Hampshire, USA town skyline on the Piscataqua River
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6. New Hampshire

  • Average electricity price for all sectors: 17.15¢ per kWh
  • Residential price: 20.05¢ per kWh
  • Average monthly residential bill: $120.04
  • Average monthly consumption: 599 kWh

Wind turbine in Indio California
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7. California

  • Average electricity price for all sectors: 16.89¢ per kWh
  • Residential price: 19.15¢ per kWh
  • Average monthly residential bill: $101.92
  • Average monthly consumption: 532 kWh

The Vermont State House in Montpelier, Vermont, USA
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8. Vermont

  • Average electricity price for all sectors: 15.36¢ per kWh
  • Residential price: 17.71¢ per kWh
  • Average monthly residential bill: $97.18
  • Average monthly consumption: 549 kWh

New York City cityscape on a sunny day
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9. New York

  • Average electricity price for all sectors: 14.34¢ per kWh
  • Residential price: 17.94¢ per kWh
  • Average monthly residential bill: $103.60
  • Average monthly consumption: 577 kWh

Portland, Maine, USA at Portland Head Light
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10. Maine

  • Average electricity price for all sectors: 14.04¢ per kWh
  • Residential price: 17.89¢ per kWh
  • Average monthly residential bill: $100.53
  • Average monthly consumption: 562 kWh

The 10 states with the least expensive electricity

New Orleans, Louisiana, USA street cars
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1. Louisiana

  • Average electricity price for all sectors: 7.71¢ per kWh
  • Residential price: 9.80¢ per kWh
  • Average monthly residential bill: $120.70
  • Average monthly consumption: 1,232 kWh

 


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Lake Overholser Dam in Oklahoma City. It was built in 1918 to impound water from the North Canadian river
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2. Oklahoma

  • Average electricity price for all sectors: 7.86¢ per kWh
  • Residential price: 10.21¢ per kWh
  • Average monthly residential bill: $113.93
  • Average monthly consumption: 1,116 kWh

Downtown Coeur d'Alene late in day
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3. Idaho

  • Average electricity price for all sectors: 7.89¢ per kWh
  • Residential price: 9.89¢ per kWh
  • Average monthly residential bill: $93.83
  • Average monthly consumption: 949 kWh

Falls and the Washington Water Power building along the Spokane river viewed from the Monroe Street Bridge, in Spokane, Washington
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4. Washington

  • Average electricity price for all sectors: 8.04¢ per kWh
  • Residential price: 9.71¢ per kWh
  • Average monthly residential bill: $94.49
  • Average monthly consumption: 973 kWh

Twilight over Buffalo Valley and the Tetons as seen from Grand Teton National Park, Wyoming
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5. Wyoming

  • Average electricity price for all sectors: 8.10¢ per kWh
  • Residential price: 11.18¢ per kWh
  • Average monthly residential bill: $96.53
  • Average monthly consumption: 864 kWh

Little Rock city skyline from the Junction Bridge across the Arkansas River
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6. Arkansas

  • Average electricity price for all sectors: 8.22¢ per kWh
  • Residential price: 9.80¢ per kWh
  • Average monthly residential bill: $109.46
  • Average monthly consumption: 1,118 kWh

Salt Lake City, Utah, USA downtown cityscape over Temple Square at dusk
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7. Utah

  • Average electricity price for all sectors: 8.24¢ per kWh
  • Residential price: 10.40¢ per kWh
  • Average monthly residential bill: $75.63
  • Average monthly consumption: 727 kWh

Charleston, West Virginia, USA skyline at twilight
Photo Credit: Alamy Stock Photo

8. West Virginia

  • Average electricity price for all sectors: 8.49¢ per kWh
  • Residential price: 11.25¢ per kWh
  • Average monthly residential bill: $121.90
  • Average monthly consumption: 1,084 kWh

Corpus Christi Cathedral in the early morning, Texas, USA
Photo Credit: Alamy Stock Photo

9. Texas

  • Average electricity price for all sectors: 8.60¢ per kWh
  • Residential price: 11.76¢ per kWh
  • Average monthly residential bill: $134.07
  • Average monthly consumption: 1,140 kWh

Kentucky, Louisville, Facade of City Hall at morning
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10. Kentucky

  • Average electricity price for all sectors: 8.61¢ per kWh
  • Residential price: 10.80¢ per kWh
  • Average monthly residential bill: $120.08
  • Average monthly consumption: 1,112 kWh

Detailed Findings & Methodology

The data used in this analysis is from the U.S. Energy Information Administration’s Electric Power Annual Report. To determine the states with the most expensive electricity, researchers ranked states based on the average electricity price for all sectors in cents per kilowatt-hour. In the event of a tie, the state with the greater residential price for electricity was ranked higher.