1. Mississippi
> Emission-free power from nuclear: 100%
> Number of nuclear power plants: 1
> Electricity generated by nuclear: 18%
> Energy price per capita:10.5 cents (27th highest)
> Population: 3.0 million
> Density rank: 32nd

The Grand Gulf nuclear power facility near Port Gibson is Mississippi’s only operating facility, but is responsible for 100% of the state’s emission free electricity.

2. New Jersey
> Emission-free power from nuclear: 100%
> Number of nuclear power plants: 3
> Electricity generated by nuclear: 50%
> Energy price per capita: 16.1 cents (7th highest)
> Population: 8.8 million
> Density rank: 1st

The most densely populated state is home to the nation’s oldest nuclear operating facility, Oyster Creek, which has been running since 1969. An offshore wind farm has been approved by the New Jersey Board of Public Utilities off the coast of Cape May which would add to the state’s emission free power base

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3. Virginia
> Emission-free power from nuclear: 100%
> Number of nuclear power plants: 2
> Electricity generated by nuclear: 36%
> Energy price per capita: 10.9 cents (25th highest)
> Population: 8.1 million
> Density Rank: 14th

The August 2011 earthquake near the North Anna facilities caused an automatic shutdown and concern, although both reactors reopened shortly after and remain in operation. The plant’s owner, Dominion, said the seismic event exceeded the plant’s design basis. But, inspections found no damage

4. Florida
> Emission-free power from nuclear: 99%
> Number of nuclear power plants: 3
> Electricity generated by nuclear: 11%
> Energy price per capita: 11.7 cents (21st highest)
> Population: 19.1 million
> Density Rank: 8th

Solar power should have loads of potential in the Sunshine State, but nuclear plants still account for 99% of the emission free power in Florida. Per capita residential electricity demand is high, due in part to high air-conditioning use during the summer.

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5. Michigan
> Emission-free power from nuclear: 98%
> Number of nuclear power plants: 3
> Electricity generated by nuclear: 26%
> Energy price per capita: 12.8 cents (16th highest)
> Population: 9.9 million
> Density Rank: 17th

Michigan has large natural gas reserves, which helps to heat homes during the cold winter. The three nuclear facilities in the state are responsible for supplying more than a quarter of the state’s electricity.