Restart of nuke plants in Japan uncertain
Resuming operations at Japan’s 35 nuclear plants depends on safety "stress tests" sometime in the future.
Electricity shortages caused by the shutdowns might drag on as Japan marked the fourth month after the March 11 earthquake and tsunami decimated much of northeastern Japan and triggered a meltdown crisis at the country’s Fukushima Dai-ichi nuclear plant.
The Japanese government ordered safety checks on all of Japan’s 54 nuclear reactors following the nuclear disaster. At present, 19 reactors are currently operating, causing electricity shortages amid sweltering heat.
Trade ministry official Yoshifumi Ohno said 35 idled nuclear reactors will undergo the new safety tests, known as “stress tests.” The initial stage of the tests will examine whether those reactors can withstand big earthquakes and tsunami.
The March earthquake and tsunami knocked out power at the Fukushima plant, sending it toward meltdown in a crisis that engineers are still struggling to contain. The plant operator has come under heavy criticism for failing to sufficiently prepare for the disasters.
Ohno said the second stage of the “stress tests” will be more comprehensive, and apply to all of Japan’s nuclear reactors. But he gave no further details, and did not say when the “stress tests” would begin.
Nuclear power generates about 30 percent of Japan’s electricity. If nuclear reactors currently shut for maintenance face delays in resuming operations, the country could face a power shortfall in the months ahead.
With the loss of the Fukushima plant, which used to supply power to Tokyo areas, the government recently imposed energy restrictions on companies, factories and shopping malls to cope with electricity shortages.
- Edited by Chris Vavra, Plant Engineering, www.plantengineering.com
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