Workers drop refueling crane console into Fukushima Daiichi Reactor 3 spent fuel pool
At the crippled Fukushima Daiichi nuclear power plant, workers accidentally dropped a large piece of debris into the Unit 3 spent fuel pool on Friday, a little after noon. The workers were carrying out…
TEPCO says Fukushima Daiichi Unit 3 meltdown worse than estimated
For the last three and a half years, TEPCO engineers have been working to better characterize the state of the melted nuclear fuel in the Fukushima Daiichi nuclear reactors. Now those officials believe…
Fukushima Daiichi Unit 3 debris removal operations released 280 billion becquerels per hour
TEPCO has announced that they estimate some 1.1 trillion becquerels of radiation was released during debris cleanup operations at the Fukushima Daiichi Unit 3 reactor. According to TEPCO’s estimates the removal work generated…
Fukushima Daiichi cleanup operations blamed for contamination of rice crops
Officials from the agriculture ministry told reporters on Monday that efforts to clean up debris at the Fukushima Daiichi nuclear power plant may have been the source of cesium that contaminated rice crops…
Japanese robots working to clean debris from Fukushima Daiichi Reactor 3
Workers at the Fukushima Daiichi nuclear power plant have been using heavy duty remove control decontamination robots to conduct debris removal operations at the Unit 3 reactor building. Radiation levels inside of the…
TEPCO’s ice wall operation not meeting expectations
In September 2013, Tokyo Electric announced that it planned to drill freeze wells at three feet intervals to create an ‘ice wall’ nearly a mile long at the Unit 2 and Unit 3…
Enhanced investigation of crippled containment vessels at Fukushima Daiichi planned
Tokyo Electric is planning a more expansive investigation of the damaged containment vessels at Fukushima Daiichi Reactor 1, Reactor 2, and Reactor 3. The utility hopes that the information gathered during the investigations…
More progress made overhauling site than decommissioning reactors at Fukushima Daiichi
In the three years since the start of the Fukushima Daiichi nuclear disaster there has been a plethora of drastic changes made to the landscape of the Fukushima Daiichi nuclear power plant including;…
TEPCO finds falling debris damaged shield plug at Fukushima Daiichi Unit 3
This week TEPCO released new photos which show the progress made removing debris off of the top of the Unit 3 reactor building. These photos show some of the damage to the operating…
Leak of contaminated water at Fukushima Daiichi Unit 3 may have international safety impact
On Saturday, workers at the Fukushima Daiichi nuclear power plant in Japan were operating a remote-controlled robot to remove debris on the first floor of the Unit 3 reactor building when they discovered…
March 23rd, 2011 – Over 9,000 lbs of salt added each day to reactor pressure vessels of Fukushima Daiichi Unit 2 and Unit 3
An analysis of salt accumulation in Fukushima Daiichi Unit 2 and Unit 3 reactor pressure vessels conducted by Dr. Mitchell T. Farmer, Reactor Safety Experimentation Section Manager at Argonne National Laboratory. March 23rd,…
April 29th, 2011 – Consortium of Industrial and Governmental Organizations analysis of TEPCO Roadmap at Fukushima Daiichi
In April of 2011, a consortium of industrial and governmental organizations established to provide advice to Japan in its efforts to stabilize the conditions at the Fukushima Daiichi nuclear power plant, authored an…
TEPCO releases infrared images of Fukushima Daiichi Unit 3
TEPCO workers used an infrared-thermographic camera over the weekend to capture images of the top floor of the Unit 3 reactor building where steam was observed last week. The camera was positioned between…
Steam emitting from Fukushima Daiichi reactor halts work
TEPCO announced that while workers were conducting debris removal operations with remotely operated cranes positioned atop the crippled Unit 3 reactor building at Fukushima Daiichi steam began emanating from near the primary containment…
March 31st, 2011 – TEPCO’s assessment of structural damage to Unit 1, 3, and 4 reactor buildings
March 31st, 2011 – TEPCO’s Assessment of Structural Damage to Unit 1, 3, And 4 Reactor Buildings by Enformable
Highly radioactive debris recovered from atop crippled Fukushima Daiichi reactor
Workers at Fukushima Daiichi were working this week to remove rubble from atop the crippled Fukushima Daiichi Unit 3 reactor building with remote-controlled cranes, when they discovered the radiation dose from a piece…
TEPCO installs cover at Fukushima Daiichi Unit 3 Spent Fuel Pool
For the last year and a half, workers at the Fukushima Daiichi nuclear power plant have been working to clear debris from atop the decimated reactor building. After an explosion ripped the building…
TEPCO still unable to restore power at all affected facilities
Monday night, a power outage at the Main Anti-Earthquake Building at the Fukushima Daiichi nuclear power station suspended operations at three spent fuel pool cooling systems and other critical plant facilities. TEPCO was…
TEPCO releases video footage of Fukushima Daiichi Reactor 3 spent fuel pool
TEPCO released video footage of an investigation into the Fukushima Daiichi Reactor 3 spent fuel pool, after workers performing debris removal operations knocked the fuel handling machine mast into the spent fuel pool….
TEPCO workers find fuel handling mast atop spent fuel storage racks in Fukushima Daiichi Unit 3
TEPCO workers sent an underwater camera into the Unit 3 spent fuel pool to determine the final resting place of the fuel handling machine mast, which was knocked into the Unit 3 spent…
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