Tokyo Electric Power Co. (TEPCO) will install the first cover at the No. 1 reactor, the focus of recent stabilization efforts, starting next month.
Workers will erect a steel framework and place a giant polyester tent-like cover around the reactor building. Similar covers will be placed around units No. 3 and 4. The work is expected to be completed by the end of the year.
A series of hydrogen explosions blew off the roofs and upper walls of the three reactors in the days after the March 11 earthquake and tsunami knocked out their cooling systems, triggering the overheating of the reactors.
The explosions scattered a large amount of radioactive debris in the area around the reactors. Workers will have to clear the debris near the No. 1 unit so that cranes and other heavy equipment can approach the reactor. TEPCO said it began shifting debris from the area around the unit Friday. (read more)