By Dorothy Davis
Japanese utility Chubu Electric Power has announced plans to implement nearly 100 billion Yen (US$1.3 billion) in tsunami countermeasures at its Hamaoka Nuclear Power Station located in the Omaezaki, Shizuoka Prefecture.
In a press release Chubu said after taking into consideration the lessons learned from the accident at TEPCO’s Fukushima Daiichi Nuclear Power Station the company has put together a plan to defend against the potentially devastating effects of a high magnitude earthquake and subsequent tsunami at its Hamaoka plant.
Chubu also said it was taking the newly heightened social concerns regarding nuclear power generation very seriously and has pledged to move ahead with greater disclosure to the public on their operations.
The first part of the countermeasures to be implemented at Hamaoka will be the installation of a seawall planned at an estimated height of 18 meters. Although earlier simulations concluded the maximum height of a tsunami wave would be around 8 meters, Chubu increased the height of the planned seawall from 12 to 18 meters after a nearly 15 meter wave crippled the Unit 1 reactor at the Fukushima complex.
Furthermore, Chubu expressed that it will reinforce and diversify emergency measures at Hamaoka to ensure the plant is able to achieve cold shutdown even in the face of both a Station Black Out and Loss of Sea Water Cooling Function as was the case at the Fukushima Daiichi Nuclear Power Station.
The target date for completion of the tsunami countermeasures is December 2012.
Chubu’s Hamaoka nuclear power plant to get nearly $1.3B in tsunami countermeasures
By Dorothy Davis