Nuclear Energy Generation by State

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Last updated October, 2024

Nuclear energy remains a major power source in the U.S. Nuclear power accounts for 16.2% of the total electricity generated in the country, according to the October nuclear energy generation report. This report is based on the latest U.S. Energy Information Administration data, which shows nuclear generation by state from July 2024.

Which state generates the largest amount of energy from nuclear sources? The EIA’s most recent data shows that in July, it was Illinois, with 8,645 thousand megawatt-hours, followed by Pennsylvania – 6,375, and South Carolina – 4,934.

The following states did not generate a significant amount of nuclear energy in July, so they will not be included in the findings below: Alaska, Colorado, Delaware, Hawaii, Idaho, Indiana, Iowa, Kentucky, Maine, Massachusetts, Montana, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Rhode Island, South Dakota, Utah, Vermont, West Virginia, and Wyoming

The following charts are based on Choose Energy’s analysis of the EIA’s nuclear energy production data.

Across the country, electricity generation from nuclear power increased by 2.48% from June to July. The U.S. produced a total of 69,885 thousand megawatt-hours of nuclear power in July 2024. Of the states with significant nuclear generation, five experienced a decrease in nuclear generation from the previous month, and 23 experienced an increase. Texas nuclear power generation decreased 3.46% from June to July.

Following is a list of the states with significant nuclear energy generation, the amounts (in thousand megawatt-hours) produced in July, and the percentage generation changed from the previous month.

Nationally, nuclear energy production increased by less than 1% from July 2023 to July 2024. 14 states experienced a decrease within the year, while 14 experienced increased nuclear power production. Nuclear energy generation in Georgia increased by 35.7% since last year.

Following are the states that increased the most in nuclear energy generation compared to last year:

Nuclear energy generation decreased by the greatest percentage in Tennessee, where nuclear energy production fell by 20.48% compared to July 2023.

New Hampshire produced the highest percentage of electricity from nuclear. In May, 67.5% of the state’s electricity came from nuclear energy.

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