Duke Energy Corp (DUK), NRG Energy Inc (NRG), Exelon Corporation (EXC): Nuclear Power is on Life Support in U.S.

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This was supposed to be a time for a nuclear revival in the U.S. The U.S. Department of Energy has a loan guarantee program with tens of billions of dollars that were earmarked to bring costs down for billions of dollars in debt to build new reactors. But the construction boom as stalled out before it ever got started. Now, the boom in nuclear construction appears all but dead.

Nuclear plant expansions and newbuilds have barely gotten off the drawing board, older plants are closing, and the worst part is that ratepayers across the country are going to foot most of the bill for the nuclear industry’s demise.

Promising pojects that never got off the ground

Duke Energy Corp (NYSE:DUK)’s gave up on a $24 billion nuclear project in Levy County, Florida in early August because of delays and doubts it could recover costs.

Duke Energy Corp (NYSE:DUK)

NRG Energy Inc (NYSE:NRG) gave up on expanding its South Texas Project in 2011, costing the company $481 million in a writedown. The project was to add two reactors to two existing reactors but cost overruns and low natural gas costs made it les economical than originally planned.

Electricite de France just reached a deal to potentially sell its nuclear operations to Exelon Corporation (NYSE:EXC) after the Calvert Cliffs Nuclear Power Plant expansion stalled and costs skyrocketed. The reactors that are currently operating are even running into trouble with one reactor shut down after a control rod dropped into the reactor . Oops!

There were also expansion projects in Prairie Island in Minnesota , LaSalle in Illinois, and Limerick in Pennsylvania that never got off the ground because of low cost natural gas and wind generation.

These new projects were the foundation of an industry revival but natural gas, wind, and solar have gotten in the way.

The old guard of nuclear is fading

It’s also important to note that existing capacity is also being shut down, a sign that even older plants can’t operate safely or cost efficiently. Entergy Corporation (NYSE:ETR) decided to shut down the Vermont Yankee nuclear power plant last month, a decision that was cheered by local residents who have argued for years that the plant is unsafe. But in the end it was costs that caused Vermont Yankee to be shut down, with Entergy Corporation (NYSE:ETR) CEO Leo Denault saying “The plant was no longer financially viable.”

Edison International’s San Onofre Nuclear Plant in California was shut down for a year due to a radioactive leak before the company decided to shut it down altogether . A Kewaunee nuclear power plant in Wisconsin was shut down earlier this year and will be decommissioned by Dominion, the first time a non-regulated power provider will shut down such a project.  Duke Energy Corp (NYSE:DUK) also announced the closure of its Crystal River nuclear plant earlier this year .

Since the last new nuclear plant built in the U.S. broke ground in 1977 it’s easy to see that more closures will be coming. Nuclear plants aren’t expected to last forever and slowly the aging fleet will shut down like the plants above have.

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