It’s also expected to add $16 billion to Pennsylvania’s GDP, where the plant is located. Shares of Constellation (CEG) soared more than 16% in midday trading. Three Mile Island, located near ...

Three Mile Island, located near Harrisburg, is best known as the site of the most serious nuclear accident in U.S. history.

[Advertisement] Jim Lounsbury: A simple mechanical accident at 4:00 in the morning last March at Three Mile Island touched off the worst accident in the history of American nuclear power.

Three Mile Island’s Unit 2 reactor had partially melted down that morning, releasing dangerous radioactive gases into the atmosphere and triggering a panic that would grip the nation for days ...

Constellation Energy plans to restart Reactor One at the Three Mile Island Nuclear Generating Station near Middletown. That is not the reactor where the infamous 1979 accident occurred.