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Embrittlement in Nuclear Power Plants

Embrittlement in Nuclear Power Plants

Of all the daunting tasks Joe Biden faces, especially vital is the inspection of dangerously embrittled atomic reactors still operating in the United States.

A meltdown at any one of them would threaten the health and safety of millions of people while causing major impact to an already struggling economy. The COVID-19 pandemic would complicate and add to the disaster. A nuclear power plant catastrophe would severely threaten accomplishments Biden is hoping to achieve in his presidency.

The problem of embrittlement is on the top of the list of nuclear power concerns. The “average age”—length of operation—of nuclear power plants in the U.S., the federal government’s Energy information Agency, reported in 2019 was 38 years.

Now, in 2021, the “average age” of nuclear power plants in the U.S. is 40 years—the length of time originally seen when nuclear power began in the U.S. for how long plants could operate before embrittlement set in.

That’s why the operating licenses originally issued for the plants were limited to 40 years.

Here’s how Arnold “Arnie” Gundersen, a nuclear engineer with more than 44 years of experience in the nuclear industry, who became a whistleblower and is now chief engineer at Fairewinds Associates, explains embrittlement: “When exposed to radiation, metal becomes embrittled and eventually can crack like glass. The longer the radiation exposure, the worse the embrittlement becomes.”

“A nuclear reactor is just like a pressure cooker and is a pot designed to hold the radioactive contents of the atomic chain reaction in the nuclear core,” continues Gundersen, whose experience includes being a licensed Critical Facility Reactor Operator. “And metals in reactors are exposed to radiation every day a plant operates”

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In Maria’s Wake, Could Puerto Rico Go Totally Green?

In Maria’s Wake, Could Puerto Rico Go Totally Green?

The ecological and humanitarian destruction of Puerto Rico has left the world aghast. But there is a hopeful green-powered opportunity in this disaster that could vastly improve the island’s future while offering the world a critical showcase for a sane energy future.

By all accounts Hurricane Maria has leveled much of the island, and literally left it in the dark. Puerto Rico’s electrical grid has been extensively damaged, with no prospects for a return to conventionally generated and distributed power for months to come.

In response Donald Trump has scolded the island for it’s massive debt, and waited a full week after the storm hit to lift a shipping restriction requiring all incoming goods to be carried on US-flagged ships. (That restriction is largely responsible for the island’s economic problems in the first place.)

The Puerto Rico Electric Power Authority is a state-owned operation that hosts a number of solar and wind farms, as well as a network of hydroelectric dams. But the bulk of its energy supply has come from heavy industrial oil, diesel and gas burners. It also burns coal imported from Colombia at a plant in Guyama.

The fossil burners themselves apparently were left mostly undamaged by Maria. But the delivery system, a traditional network of above-ground poles and wires, has essentially been obliterated. Power authority officials say it could take at least 4-6 months to rebuild that network.

And of course, there is no guaranteeing such a pole-and-wire set-up would not then be obliterated by the next storm.

Among the most serious casualties have been the island’s hospitals. According to reports, 58 of Puerto Rico’s 69 medical facilities have been blacked out. At least two people died when intensive care units went dark.

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Olduvai IV: Courage
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Olduvai II: Exodus
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