Tokyo Electric Power Co. will have to change its road map for stabilizing the Fukushima No. 1 power plant because it will take longer than expected to install a cooling system with circulating water for heavily damaged reactor No. 1, experts said Friday.
Tepco said Thursday it found that the water level in the reactor's pressure and containment vessels was much lower than it had estimated and said both had developed holes or cracks.
The utility is still pumping massive amounts of water into the vessels to cool the fuel rods inside the pressure vessel.