UK nuclear safety review finds 38 cases for improvement

A review of nuclear safety in the UK has found 38 areas where safety could be improved, in lessons drawn from the Fukushima incident in Japan early this year.

The review, ordered by the government following the Japanese experience, pinpointed critical areas for concern, including risks associated with flooding, the layout of plants, and the state of preparedness for emergencies. Ministers and the relevant regulators will be asked to look at these as a matter of urgency.

However, the review published on Tuesday also concluded that the UK’s nuclear industry is broadly safe, with “no fundamental safety weaknesses”. If the areas of concern raised in the light of the Fukushima are addressed, the industry will be “even safer”, the report said. The relatively clean bill of health was rapidly seized on by the government.

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Geologically Active Japan as an Energy Resource

Only about 16% of Japan’s electricity is produced domestically, but Japan is located on the ring of fire and is rated as the third most geologically active country in the world. This threatens nuclear power with earthquakes, tsunamis, and volcanic eruptions, but is ideal for geothermal energy development. Japan Geothermal Developer’s Council has announced that six Tohoku prefectures could develop a generating capacity of 170 MW and a total of 740 MW in those prefectures, if including sites in national parks, where geothermal plants are presently restricted.

The recent massive earthquake in Japan caused 6800 MW of electricity to go offline. It is estimated that conventional geothermal in Japan may have a combined capacity for 85,000 MW, more than enough to entirely replace its nuclear energy power plants.

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The team is scheduled to build a technology demonstration unit in 2012. This is a cooperative project between the National Aeronautics and Space Administration (NASA) and the U.S. Department of Energy (DOE). Werner leads the DOE’s Idaho National Laboratory involvement in this effort, which includes participation in the reactor design and modeling teams, fuel development and fabrication and development of a small electrical pump for the liquid metal cooled system.

Sunlight and fuel cells were the mainstays for generating electricity for space missions in the past, but engineers realized that solar energy has limitations. Solar cells do a great job supplying electricity in near-Earth orbits and for satellite-borne equipment, but nuclear power offers some unique capabilities that could support manned outposts on other planets or moons.

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China has “vastly increased” the risk of a nuclear accident by opting for cheap technology that will be 100 years old by the time dozens of its reactors reach the end of their lifespans, according to diplomatic cables from the US embassy in Beijing.

The warning comes weeks after the government in Beijing resumed its ambitious nuclear expansion programme, that was temporarily halted for safety inspections in the wake of the meltdown of three reactors in Fukushima, Japan.

Cables released this week by WikiLeaks highlight the secrecy of the bidding process for power plant contracts, the influence of government lobbying, and potential weaknesses in the management and regulatory oversight of China’s fast-expanding nuclear sector.

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5.9 Mineral, Virginia Earthquake Shakes Six Nuclear Power Plants Within 150 Miles

A magnitude 5.9 earthquake just hit Mineral, VA, sending shockwaves up and down the East Coast of the United States that evacuated the Capital Building, the White House, and the Pentagon in Washington, D.C. With Japan’s Fukushima Daiichi earthquake, tsunami and ensuing nuclear disaster still fresh in our memory — and still sending radiation through that country — everyone is wondering how this latest tremor will affect nuclear power plants in the Mineral, VA area. The answer, as of now, is not much — but there are six nuclear reactors within 150 miles of the earthquake’s epicenter, and a recent report by the US Nuclear Regulatory Commission says that we’re not properly prepared for a disaster.

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Small Modular Nuclear Reactors – A Big Part of America’s Energy Future

America’s nuclear power renaissance has been just around the corner for years, it seems.  Even though 20 percent of all U.S. electricity is generated by nuclear power plants, without any greenhouse gas emissions, safety and cost concerns mean no new plants have been built in decades.

But a new breed of nuclear reactor could unlock the power of the atom in a safe, affordable way. energyNOW! correspondent Daniel Sieberg explores the promise of small modular reactors (SMR) – simple enough to be scalable, powerful enough to power a whole town, and safe enough to be buried underground.

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Sellafield Mox nuclear fuel plant to close. It’s a headline that generations of Irish environmental activists, and government ministers in Leinster House, never thought they would see. After just 10 years of operation – and at the cost of a vertiginous £1.4bn to the British taxpayer – the mixed-oxide fuel plant nestled on the edge of bucolic west Cumbria is to be decommissioned.

Sellafield has long been an emotive issue in Ireland. At just 128 miles from Dublin, the plant is within spitting distance of Ireland’s densely populated eastern seaboard. The Irish Sea is now the most radioactively contaminated in the world, while in the wake of 9/11 concerns about a terrorist attack on the plant briefly gripped the Irish popular imagination.

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Fukushima radiation reaches lethal levels

Pockets of lethal levels of radiation have been detected at Japan’s crippled Fukushima Daiichi nuclear plant in a fresh reminder of the risks faced by workers battling to contain the worst nuclear accident since Chernobyl.

Plant operator Tokyo Electric Power (Tepco) reported on Monday that radiation exceeding 10 sieverts (10,000 millisieverts) per hour was found at the bottom of a ventilation stack standing between two reactors.

On Tuesday Tepco said it found another spot on the ventilation stack itself where radiation exceeded 10 sieverts per hour, a level that could lead to incapacitation or death after just a short period of exposure.

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This week French state-owned power company EDF was given permission to start the preconstruction of “Hinkley C”, the third nuclear power station on the Somerset coast of the Bristol channel and what is expected to be the first nuclear power station to be built in Britain in over 20 years. This will involve clearing over 400 acres of land and excavating more soil and rock than was dug up for the London Olympic Games.

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Infographic Nuclear Power vs. Energy Efficient Homes

by Peter Troast

Our friends at Energy Savvy continue to be great visual communicators of the benefits of energy efficiency. Yesterday we stumbled across this great infographic that provides a powerful visual demonstration of the economics, as well as the job-creating potential, of residential energy efficiency vs. building nuclear power plants.

In short: For less than half the cost of replacing just 1 nuclear power plant, we could retrofit 1.6 million homes for energy efficiency and reduce the need for the same amount of energy the plant would produce. Doing so would also create 90 times more jobs than replacing the power plant.

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