Hitachi Ltd submitted a proposal April 8 for the long-term decommissioning of six crippled nuclear reactors at the Fukushima Daiichi power plant. Hitachi supplied one of the six reactors at the plant, according to the Nikkei business daily newspaper.
General Electric Co., Exelon Corp. and Bechtel Corp. helped Hitachi come up with the plan.
The five-stage plan was submitted to Tokyo Electric Power Co, which operates the Fukushima plant. The plan includes taking the fuel rods out of the reactors and spent fuel pools, cleaning the contaminated facilities, handling nuclear waste and eventually dismantling the reactors and buildings, the paper said.
There was no word on how long each stage is expected to last, but Hitachi estimated it would take about 30 years to fully dismantle the reactor cores and buildings that were damaged in March after an earthquake and tsunami hit the country.
Toshiba Corp. submitted a plan to decommission the reactors on April 4 with help from Babcock & Wilcox Co. and Shaw Group. Toshiba said its proposal would take at least 10 years to complete, according to the article.
Both companies are getting advice from partner companies because of their past work on nuclear accidents at Three Mile Island and Chernobyl nuclear power plants.
The company supplied two reactors as the main contractor at Fukushima Daiichi and jointly supplied two others with GE.
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