Tag-arkiv: nuclear energy

Status of nuclear power 2010

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In total 27 plants are under construction in China of 64 worldwide.

Risø DTU has made its eighth report in the series: ‘Nuclear power and Nuclear Safety’, which gives a global overview of nuclear energy with a focus on safety and preparedness. This year’s report is a bit delayed because of the accident in Fukushima, which is also mentioned in the report that would normally cover only the year 2010. Continue

Managing nuclear spent fuel: Policy lessons from a 10-country study

By Harold Feiveson, Zia Mian, M. V. Ramana, and Frank von Hippel | 27 June 2011

Research published in the Bulletin of Atomic Scientists warns if nuclear waste management is not thought out from the beginning, the public in many countries will reject nuclear power as an energy choice.

Article Highlights

* Reprocessing spent fuel does not eliminate the need for a geological repository — or ease the challenge of identifying suitable sites.

* Finding sites for geological repositories has proven to be very difficult, and the only successes have come through voluntary, consultative processes.

* Dry-cask storage is becoming more common, and some countries might store spent fuel in casks for 100 years or more as an interim strategy.

Continue: Bulletin of Atomic Scientists

Japan scraps plan for 14 new nuclear plants

Japan PM on Fukushima: “Taking this as a lesson, we will lead the world in clean energy such as solar and biomass”

Prime Minister Naoto Kan said Tuesday that Japan would abandon plans to build new nuclear reactors, saying his country needed to “start from scratch” in creating a new energy policy….

Mr. Kan said Japan would retain nuclear and fossil fuels as energy sources, but vowed to add two new pillars to Japan’s energy policy: renewable energy and conservation.

Continue: Climate Progress

A population density map to help provide context for the nuclear power plant proximity analysis

nature great beyond nuclear power population density

How many people live within certain distances of each of the world’s nuclear power plants.

High-resolution global population density Google Earth map for 2010 created by the NASA Socioeconomic Data and Applications Center operated by Columbia University’s Center for International Earth Science Information Network (CIESIN). The underlying population data is the same as we used in our previous analysis to estimate the size of population in the proximity of nuclear plants.

Posted by Declan Butler on April 22, 2011

Continue: Nature

New Sarcophagus for Chernobyl Will Have to Wait Until 2015

523_Ana_Pancenko_en_centro_medico_de_Tarara_Jose_Luis_BaniosIPS Tjernobyl

The lack of funds needed to construct a permanent containment shelter for the Chernobyl nuclear reactor means disease and deaths from the 1986 disaster will continue to mount.

BERLIN, Apr 25 (Tierramérica).- The ruins of the Chernobyl nuclear reactor where an explosion 25 years ago led to one of the worst environmental disasters in history still contain 95 percent of the original fuel load, which remains highly radioactive.

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Fukushima rated at INES Level 7 – what does this mean?

800px-INES_en.svg ines brave new climate

Hot in the news is that the Fukushima Nuclear crisis has been upgraded from INES 5 to INES 7. Note that this is not due to some sudden escalation of events today (aftershocks etc.), but rather it is based on an assessment of the cumulative magnitude of the events that have occurred at the site over the past month

Continue: BraveNewClimate

Crowd-sourced realtime radiation monitoring in Japan

pachube crowd radiation japan real time

There are now hundreds of radiation-related feeds from Japan on Pachube, monitoring conditions in realtime and underpinning more than half a dozen incredibly valuable applications built by people around the world. They combine ‘official’ data, ‘unofficial’ official data, and, most importantly to us, realtime networked geiger counter measurements contributed by concerned citizens.

Continue: Pachube

pachube

15-meter waves hit Fukushima

Tokyo Electric Power Company was reporting on Saturday on its survey of high-water marks left on the plant’s buildings.

It says it found that the tsunami reached up to 15 meters on the ocean side of the reactor and turbine buildings. The figure is far beyond the company’s originally estimated height of 5.7 meters.

Continue: NHK

The world’s nuclear reactors as you’ve never seen them…

nature beyond world nuc reactors

Interactive

The nuclear accident at the Fukushima Daichii power plant will have consequences for the future of nuclear power in Japan and elsewhere. To get a better idea of the world’s current tally of nuclear reactors, NATUREs “Great Beyond” have created a map of the world’s nuclear power plants and reactors using Google Earth – the maps are based on a database supplied by staff at the International Atomic Energy Agency’s (IAEA)

Continue: Nature The Great Beyond

Japan must distribute iodine tablets urgently

PARIS, March 31 (Reuters) – Japanese authorities grappling with a nuclear disaster must hand out iodine tablets now and as widely as possible to avoid a potential leap in thyroid cancers, the head of a group of independent radiation experts said.

France’s CRIIRAD group says Japan has underestimated the sensitivity of the thyroid gland to radioactivity and must lower its 100 millisieverts (mSv) threshold for administering iodine.

Continue: Reuters

Factbox: How much radiation is dangerous?

(Reuters): Here are some facts about radiation and the health dangers it poses-

Below are different levels of massive radiation exposure in a single dose – all measured in millisieverts — and their likely effects on humans, as published by the U.S. Environmental Protection Agency:

– 50-100: changes in blood chemistry

– 500: nausea, within hours

– 700: vomiting

– 750: hair loss, within 2-3 weeks

– 900: diarrhea

– 1,000: hemorrhage

– 4,000: possible death within 2 months, if no treatment

– 10,000: destruction of intestinal lining, internal bleeding and death within 1-2 weeks

– 20,000: damage to the central nervous system and loss of consciousness within minutes, and death within hours or days

Sources: Taiwan Atomic Energy Council, World Nuclear Association, US Department of Transportation, US Environmental Protection Agency

Continue: Reuters

People at Risk: Visualising Global Earthquake Intensity

Views of the world

A map, which provides a general representation of the risks of earthquakes on humanity using records from the past 4,000 years, has been produced by a geographer from the University of Sheffield.

The new World Earthquake Intensity Map has been created on an equal-population map and allows us to understand the earthquake intensity in relation to today´s population distribution, giving an idea of where most people are at risk in regards to seismic activity.

It provides a visualisation of all major earthquakes that have been complied in the Global Significant Earthquake Database. The database contains information on destructive earthquakes from 2150 BC to the present day that meet at least one of the following criteria: moderate damage (approximately $1 million or more), 10 or more deaths, magnitude 7.5 or greater, modified Mercalli intensity X or greater, or the earthquake generated a tsunami.

Earthquake Density Map_tn

Continue: Views of the world

Credit:

Benjamin David Hennig

Social and Spatial Inequalities Research Group,Department of Geography,University of Sheffield

Global map of nuclear power stations

nuclear_risk_map_map maplecroft

The recent Fukushima Daiichi crisis has reopened the nuclear debate. Risk analysis and mapping firm Maplecroft has produced a global map of nuclear power stations, revealing the vulnerability to seismic, tsunami and storm surge risk of these facilities and the levels of energy security risks that countries face in the long-term; which begs the question about their need to rely on nuclear energy as an alternative to conventional sources.

Continue: Maplecroft

nuclear_risk_map_map maplecroft

Scientists Project Pacific Path of Radiation Plume

New York Times, Published: March 16, 2011

A United Nations forecast of the possible movement of the radioactive plume coming from crippled Japanese reactors shows it churning across the Pacific, and touching the Aleutian Islands on Thursday before hitting Southern California late Friday.

Continue: NY Times

Interaktive: NY Times

High radiation levels detected 20 km. from plant

NHK Wednesday, March 16, 2011 17:58 +0900 (JST)

Japan’s science ministry has observed radiation levels of up to 0.33 millisieverts per hour in areas about 20 kilometers northwest of the quake-damaged Fukushima Daiichi nuclear power plant.

Experts say exposure to such radiation for 3 hours would result in absorption of 1 millisievert, or the maximum considered safe for 1 year.

Continue: NHK

80,000 mobilized for rescue works, death toll nears 3,700

TOKYO, March 16, Kyodo

Rescue operations continued Wednesday following the catastrophic earthquake in Japan, with 80,000 Self-Defense Forces personnel and police officers mobilized in the devastated areas, where temperatures have dropped to midwinter levels.

The National Police Agency said it has confirmed 3,676 deaths in 12 prefectures, while 7,843 people remained unaccounted for in six prefectures as of 12:30 p.m.

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Status of quake-stricken reactors at Fukushima nuclear power plants, March 16

TOKYO, March 16, Kyodo

The following is the known status as of Wednesday evening of each of the six reactors at the Fukushima No. 1 nuclear power plant and the four reactors at the Fukushima No. 2 plant, both in Fukushima Prefecture, which were crippled by Friday’s magnitude 9.0 earthquake and the ensuing tsunami.

Continue

Nuclear Power Stalling?

nuclear-general-bg

Even though some political leaders have talked about the growing importance of nuclear power, including an announcement by the Obama Administration of nuclear loan guarantees and a call for expanded nuclear power by the French government, nuclear energy only supplied some 5.5 percent of the world’s primary energy in 2008, down the seventh year in a row since a peak in 2001. Many of the currently operating 436 reactors worldwide are quickly aging, leading to a predicted round of accelerated shutdowns from 2020 onward. A global status report [PDF] commissioned by the German government estimates that all 52 reactors under construction as of mid-2009 plus an additional 42 reactors would have to be built and come online by 2015 to maintain the same number of operating reactors in the world over time. Another 192 reactors would need to come online by 2025—the equivalent of one new reactor coming online every 19 days for 10 years. Of the new generation, China is now the clear leader, accounting for 15 of the 21 nuclear reactor construction starts in the last two years and with plans to build more.

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Worldwatch Institute_1263469275963 logo

http://blogs.worldwatch.org/datelinecopenhagen/nuclear-power-stalling/