Japan to maintain nuclear power despite crisis
Sunday 08 May 2011
A top Japanese official said on Sunday that Japan would maintain atomic power as a major part of its energy policy despite the country's ongoing nuclear crisis.
Deputy Chief Cabinet Secretary Yoshito Sengoku also said the government has no plans to halt nuclear reactors other than three at the Hamaoka power plant in central Japan. The plant was asked last week to halt the units until a seawall is built and backup systems are improved.
"Our energy policy is to stick to nuclear power," Sengoku said on a weekly talk show on public broadcaster NHK.
He said Hamaoka was an exception and that the government's closure request Friday did not mean a departure from its nuclear-reliant policy.
Chubu Electric Power Co., which runs the three Hamaoka reactors, postponed its decision Saturday on the government's shutdown request.
The main concern is that shutting down the reactors would likely worsen power shortages expected this summer.
The government has been reviewing the safety of the country's 54 atomic reactors since a March 11 earthquake and tsunami crippled the Fukushima Dai-ichi nuclear plant in the north. The disaster left more than 25,000 people dead or missing on the northeast coast and triggered the worst nuclear crisis since Chernobyl in 1986.
The Hamaoka plant, which is about 125 miles (200 kilometers) west of Tokyo, in an area where a major quake is expected within decades, has been a major concern for years.
However, Sengoku said there is "no need to worry" about other plants in the country. "Scientifically, that's our conclusion at the moment," he said.
Chubu Electric executives failed to reach a decision Saturday over the shutdown request and will meet again after the weekend, company official Mikio Inomata said.
At issue is how to make up for the power shortages that would result from the shutdown of the three reactors. Inomata said they account for more than 10 percent of the company's power supply.
Chubu Electric has estimated maximum output of about 30 million kilowatts this summer with the three Hamaoka reactors running, with estimated demand of about 26 million kilowatts.
"It would be tight," Inomata said, adding that officials are discussing the possibility of boosting output from gas, oil and coal-fueled power plants and purchasing power from other utility companies.
The Hamaoka plant is a key power provider in central Japan, including nearby Aichi, home of Toyota Motor Corp.
Prime Minister Naoto Kan said Friday that the closure request was for the "people's safety."
He noted that experts estimate there is a 90 percent chance that a quake with a magnitude of 8.0 or higher will strike the region within 30 years.
Residents of Shizuoka prefecture, where Hamaoka is located, have long demanded a shutdown of the plant's reactors. About 79,800 people live within a 6-mile (10-kilometer) radius of the complex.
Since the March 11 disasters, Chubu Electric has drawn up safety measures that include building a 40-foot-high (12-meter-high) seawall nearly a mile (1.5 kilometers) long over the next two to three years, company officials said. Chubu also promised to install additional emergency backup generators and other equipment and improve the water tightness of the reactor buildings.
The Hamaoka plant lacks a concrete sea barrier now. Sand hills between the ocean and the plant are about 32 to 50 feet (10 to 15 meters) high, deemed enough to defend against a tsunami around 26 feet (8 meters) high, officials said. The operator of the Fukushima nuclear plant, Tokyo Electric Power Co., has said the tsunami that wrecked critical power and cooling systems there was at least 46 feet (14 meters) high.
On Saturday, TEPCO said that radioactivity inside Fukushima Dai-ichi's No. 1 reactor building had fallen to levels deemed safe for people wearing protective suits to enter after workers rapidly installed air filtering equipment Thursday — their first entry since shortly after the tsunami.
TEPCO said it was awaiting permission from Japan's nuclear safety agency to leave the door to the building open for the operation, and that workers could begin installing a new cooling system at the reactor as early as Sunday. TEPCO has said some air may escape through the entrance but that radioactivity is low enough to cause no danger to health.
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