The operator of the stricken Fukushima nuclear plant has revealed that 600 tonnes of reactor fuel melted during the disaster, and that the exact location of the highly radioactive blobs remains a mystery.
In an exclusive interview with Foreign Correspondent, the Tokyo Electric Power Company’s chief of decommissioning at Fukushima, Naohiro Masuda, said the company hoped to pinpoint the position of the fuel and begin removing it from 2021.
But he admitted the technology needed to remove the fuel has to be invented.
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TEPCO says the process will take 30 to 40 years and tens of billions of dollars.
“In Reactor 1, all of the fuel has melted down from inside the pressure vessel,” Mr Masuda said.
“In reactors 2 and 3, about 30 per cent to 50 per cent remains in the pressure vessel and the rest has melted down. But unfortunately, we don’t know exactly where [the fuel] is.”
The head of the United States Nuclear Regulatory Commission (NRC) at the time of the meltdowns at Fukushima doubts the fuel can be retrieved, saying such an operation has never been done before.
“Nobody really knows where the fuel is at this point and this fuel is still very radioactive and will be for a long time,” said Gregory Jaczko in an interview with Foreign Correspondent in Washington.
“It may be possible that we’re never able to remove the fuel. You may just have to wind up leaving it there and somehow entomb it as it is.”
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10 million bags of contaminated soil in gigantic waste dumps
Another supporter turned opponent of nuclear power is Naoto Kan, who was the Japanese prime minister at the time of the Fukushima meltdowns.
He says those who argue that nuclear power is a safe, cheap source of energy are misguided.
“So far, the government is paying $70 billion to support TEPCO,” Mr Kan said.
“But that is not enough. It will probably cost more than $240 billion. I think 40 years [to decommission the plant] is an optimistic view.”
Read more at Fukushima clean-up chief still hunting for 600 tonnes of melted radioactive fuel