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Jan Wyllie

Cap & Share: simple is beautiful [22Jul11] - 0 views

  • Cap: The total carbon emissions are limited (capped) in a simple, no-nonsense way Share: The huge amounts of money involved are shared equally by the population
  • The primary fossil-fuel suppliers (e.g. oil companies) are required to acquire permits in order to introduce fossil fuels into the economy (by importing them or extracting them from the ground).
  • Next, the Share. Since the fossil fuel suppliers have to buy the permits, they will pass on this cost by increasing the fuel price. This flows through the economy (like a carbon tax), making carbon-intensive goods cost more.
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  • But the trick this time is to share out the money paid by the fossil-fuel suppliers, back to the people, which compensates for the price rises.
  • These certificates are then sold to the primary fossil-fuel suppliers (through market intermediaries such as banks) and become the permits.
  • Cap & Share in a nutshell
  • To many people, however, the ‘obvious’ mechanism is not Cap & Share but either a carbon tax (discussed below) or a version of cap and trade applied ‘downstream’ where the emissions take place. Such a cap and trade system has two parts, as follows. The first applies to the fossil fuels we buy directly (petrol, gas, coal) and burn ourselves, causing emissions; these direct emissions account for half of our ‘carbon footprint’. For these direct emissions, some form of personal carbon trading is envisaged, typically based on ideas of ‘rationing’ familiar from petrol and food rationing during the Second World War. Personal Carbon Allowances (PCAs) typically involve giving an equal allowance to each adult citizen, and each purchase of petrol, oil or gas is deducted from the allowance (typically using swipe card technology). The other half of our carbon footprint consists of indirect emissions, the ‘embedded’ emissions in goods and services, which arise when companies produce these goods and services on our behalf. These indirect emissions are controlled with an Emissions Trading System (ETS) for companies
  • scientific realism will trump political realism in the end.
  • At the moment, the populations of most countries are largely in psychological denial, ‘yearning to be free’ of the knowledge, deep down, that we are collectively on the wrong road.
  • ut we will also need a dramatic change in global popular opinion — a change of world-view. Adoption of a simple, fair and realistic framework for cutting global carbon emissions — such as Cap & Share — would be inspirational, resonating with this change and with efforts to solve the other problems that face us collectively on our finite planet.
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How To Remove Radioactive Iodine-131 From Drinking Water [07Apr11] - 0 views

  • The Environmental Protection Agency recommends reverse osmosis water treatment to remove radioactive isotopes that emit beta-particle radiation. But iodine-131, a beta emitter, is typically present in water as a dissolved gas, and reverse osmosis is known to be ineffective at capturing gases. A combination of technologies, however, may remove most or all of the iodine-131 that finds its way into tap water, all available in consumer products for home water treatment.
  • When it found iodine-131 in drinking water samples from Boise, Idaho and Richland, Washington this weekend, the EPA declared: An infant would have to drink almost 7,000 liters of this water to receive a radiation dose equivalent to a day’s worth of the natural background radiation exposure we experience continuously from natural sources of radioactivity in our environment.” But not everyone accepts the government’s reassurances. Notably, Physicians for Social Responsibility has insisted there is no safe level of exposure to radionuclides, regardless of the fact that we encounter them naturally:
  • There is no safe level of radionuclide exposure, whether from food, water or other sources. Period,” said Jeff Patterson, DO, immediate past president of Physicians for Social Responsibility. “Exposure to radionuclides, such as iodine-131 and cesium-137, increases the incidence of cancer. For this reason, every effort must be taken to minimize the radionuclide content in food and water.” via Physicians for Social Responsibility, psr.org No matter where you stand on that debate, you might be someone who simply prefers not to ingest anything that escaped from a damaged nuclear reactor. If so, here’s what we know: Reverse Osmosis The EPA recommends reverse osmosis water treatment for most kinds of radioactive particles. Iodine-131 emits a small amount of gamma radiation but much larger amounts of beta radiation, and so is considered a beta emitter:
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  • Reverse osmosis has been identified by EPA as a “best available technology” (BAT) and Small System Compliance Technology (SSCT) for uranium, radium, gross alpha, and beta particles and photon emitters. It can remove up to 99 percent of these radionuclides, as well as many other contaminants (e.g., arsenic, nitrate, and microbial contaminants). Reverse osmosis units can be automated and compact making them appropriate for small systems. via EPA, Radionuclides in Drinking Water
  • However, EPA designed its recommendations for the contaminants typically found in municipal water systems, so it doesn’t specify Iodine-131 by name. The same document goes on to say, “Reverse osmosis does not remove gaseous contaminants such as carbon dioxide and radon.” Iodine-131 escapes from damaged nuclear plants as a gas, and this is why it disperses so quickly through the atmosphere. It is captured as a gas in atmospheric water, falls to the earth in rain and enters the water supply.
  • Dissolved gases and materials that readily turn into gases also can easily pass through most reverse osmosis membranes,” according to the University of Nevada Cooperative Extension. For this reason, “many reverse osmosis units have an activated carbon unit to remove or reduce the concentration of most organic compounds.” Activated Carbon
  • That raises the next question: does activated carbon remove iodine-131? There is some evidence that it does. Scientists have used activated carbon to remove iodine-131 from the liquid fuel for nuclear solution reactors. And Carbon air filtration is used by employees of Perkin Elmer, a leading environmental monitoring and health safety firm, when they work with iodine-131 in closed quarters. At least one university has adopted Perkin Elmer’s procedures. Activated carbon works by absorbing contaminants, and fixing them, as water passes through it. It has a disadvantage, however: it eventually reaches a load capacity and ceases to absorb new contaminants.
  • Ion Exchange The EPA also recommends ion exchange for removing radioactive compounds from drinking water. The process used in water softeners, ion exchange removes contaminants when water passes through resins that contain sodium ions. The sodium ions readily exchange with contaminants.
  • Ion exchange is particularly recommended for removing Cesium-137, which has been found in rain samples in the U.S., but not yet in drinking water here. Some resins have been specifically designed for capturing Cesium-137, and ion exchange was used to clean up legacy nuclear waste from an old reactor at the Department of Energy’s Savannah River Site (pdf).
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Is nuclear energy different than other energy sources? [08Sep11] - 0 views

  • Nuclear power proponents claim: It has low carbon emissions. It is the peaceful face of the atom and proliferation problems are manageable. It is compact -- so little uranium, so much energy. Unlike solar and wind, it is 24/7 electricity. It reduces dependence on oil. Let's examine each argument.
  • 1. Climate. Nuclear energy has low carbon emissions. But the United States doesn't lack low-carbon energy sources: The potential of wind energy alone is about nine times total US electricity generation. Solar energy is even more plentiful. Time and money to address climate change are in short supply, not low carbon dioxide sources. Instead of the two large reactors the United States would require every three months to significantly reduce carbon dioxide emissions, all the breathless pronouncements from nuclear advocates are only yielding two reactors every five years -- if that. Even federal loan guarantees have not given this renaissance momentum. Wall Street won't fund them. (Can nuclear power even be called a commercial technology if it can't raise money on Wall Street?) Today, wind energy is far cheaper and faster than nuclear. Simply put: Nuclear fares poorly on two crucial criteria -- time and money.
  • 2. Proliferation. President Eisenhower spoke of "Atoms for Peace" at the United Nations in 1953; he thought it would be too depressing only to mention the horrors of thermonuclear weapons. It was just a fig leaf to mask the bomb: Much of the interest in nuclear power is mainly a cover for acquiring bomb-making know-how. To make a real dent in carbon dioxide emissions, about 3,000 large reactors would have to be built worldwide in the next 40 years -- creating enough plutonium annually to create 90,000 bombs, if separated. Two or three commercial uranium enrichment plants would also be needed yearly -- and it has only taken one, Iran's, to give the world a nuclear security headache.
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  • 3. Production. Nuclear power does produce electricity around the clock -- until it doesn't. For instance, the 2007 earthquake near the seven-reactor Kashiwazaki Kariwa plant in Japan turned 24/7 electricity into a 0/365 shutdown in seconds. The first of those reactors was not restarted for nearly two years. Three remain shut down. Just last month, an earthquake in Virginia shut down the two North Anna reactors. It is unknown when they will reopen. As for land area and the amount of fuel needed, nuclear proponents tend to forget uranium mining and milling. Each ton of nuclear fuel creates seven tons of depleted uranium. The eight total tons of uranium have roughly 800 tons of mill tailings (assuming ore with 1 percent uranium content) and, typically, a similar amount of mine waste. Nuclear power may have a much smaller footprint than coal, but it still has an enormous waste and land footprint once uranium mining and milling are considered.
  • 4. Consistency. Solar and wind power are intermittent. But the wind often blows when the sun doesn't shine. Existing hydropower and natural gas plants can fill in the gaps. Denmark manages intermittency by relying on Norwegian hydropower and has 20 percent wind energy. Today, compressed-air energy storage is economical, and sodium sulfur batteries are perhaps a few years from being commercial. Smart grids and appliances can communicate to alleviate intermittency. For instance, the defrost cycle in one's freezer could, for the most part, be automatically deferred to wind or solar energy surplus periods. Likewise, icemakers could store coldness to provide air-conditioning during peak hot days. The United States is running on an insecure, vulnerable, 100-year-old model for the grid -- the equivalent of a punch-card-mainframe computer system in the Internet age. It's a complete failure of imagination to say wind and solar intermittency necessitates nuclear power.
  • 5. Oil. The United States uses only a tiny amount of oil in the electricity sector. But with electric vehicles, solar- and wind-generated electricity can do more for "energy independence" now than nuclear can, as renewable energy plants can be built quickly. Luckily, this is rapidly becoming a commercial reality. Parked electric vehicles or plug-in hybrids in airports, large businesses, or mall parking lots could help solve intermittency more cheaply and efficiently. Ford is already planning to sell solar panels to go with their new all-electric Ford Focus in 2012. We don't need a costly, cumbersome, water-intensive, plutonium-making, financially risky method to boil water. Germany, Italy, and Switzerland are on their way to non-nuclear, low-carbon futures. Japan is starting down that road. A new official commission in France (yes, France!) will examine nuclear and non-nuclear scenarios. So, where is the Obama administration?
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    From Bulletin of the Atomic Scientists
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Energy Forecast: Fracking in China, Nuclear Uncertain, CO2 Up [09Nov11] - 0 views

  • This year’s World Energy Outlook report has been published by the International Energy Agency, and says wealthy and industrializing countries are stuck on policies that threaten to lock in “an insecure, inefficient and high-carbon energy system.”You can read worldwide coverage of the report here. Fiona Harvey of the Guardian has a piece on the report that focuses on the inexorable trajectories for carbon dioxide, driven by soaring energy demand in Asia.A variety of graphs and slides can be reviewed here:
  • According to the report, Russia will long remain the world’s leading producer of natural gas, but exploitation of shale deposits in the United States, and increasingly in China, will greatly boost production in those countries (which will be in second and third place for gas production in 2035).Last month, in an interview with James Kanter of The Times and International Herald Tribune, the new head of the energy agency, Maria van der Hoeven, discussed one point made in the report today — that concerns raised by the damage to the Fukushima Daiichi power plant could continue to dampen expansion of nuclear power and add to the challenge of avoiding a big accumulation of carbon dioxide, saying: “Such a reduction would certainly make it more difficult for the world to meet the goal of stabilizing the rise in temperature to 2 degrees Centigrade.”
  • Here’s the summary of the main points, released today by the agency: “Growth, prosperity and rising population will inevitably push up energy needs over the coming decades. But we cannot continue to rely on insecure and environmentally unsustainable uses of energy,” said IEA Executive Director Maria van der Hoeven. “Governments need to introduce stronger measures to drive investment in efficient and low-carbon technologies. The Fukushima nuclear accident, the turmoil in parts of the Middle East and North Africa and a sharp rebound in energy demand in 2010 which pushed CO2 emissions to a record high, highlight the urgency and the scale of the challenge.”
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  • In the WEO’s central New Policies Scenario, which assumes that recent government commitments are implemented in a cautious manner, primary energy demand increases by one-third between 2010 and 2035, with 90% of the growth in non-OECD economies. China consolidates its position as the world’s largest energy consumer: it consumes nearly 70% more energy than the United States by 2035, even though, by then, per capita demand in China is still less than half the level in the United States. The share of fossil fuels in global primary energy consumption falls from around 81% today to 75% in 2035. Renewables increase from 13% of the mix today to 18% in 2035; the growth in renewables is underpinned by subsidies that rise from $64 billion in 2010 to $250 billion in 2035, support that in some cases cannot be taken for granted in this age of fiscal austerity. By contrast, subsidies for fossil fuels amounted to $409 billion in 2010.
  • Short-term pressures on oil markets are easing with the economic slowdown and the expected return of Libyan supply. But the average oil price remains high, approaching $120/barrel (in year-2010 dollars) in 2035. Reliance grows on a small number of producers: the increase in output from Middle East and North Africa (MENA) is over 90% of the required growth in world oil output to 2035. If, between 2011 and 2015, investment in the MENA region runs one-third lower than the $100 billion per year required, consumers could face a near-term rise in the oil price to $150/barrel.Oil demand rises from 87 million barrels per day (mb/d) in 2010 to 99 mb/d in 2035, with all the net growth coming from the transport sector in emerging economies. The passenger vehicle fleet doubles to almost 1.7 billion in 2035. Alternative technologies, such as hybrid and electric vehicles that use oil more efficiently or not at all, continue to advance but they take time to penetrate markets.
  • The use of coal – which met almost half of the increase in global energy demand over the last decade – rises 65% by 2035. Prospects for coal are especially sensitive to energy policies – notably in China, which today accounts for almost half of global demand. More efficient power plants and carbon capture and storage (CCS) technology could boost prospects for coal, but the latter still faces significant regulatory, policy and technical barriers that make its deployment uncertain.Fukushima Daiichi has raised questions about the future role of nuclear power. In the New Policies Scenario, nuclear output rises by over 70% by 2035, only slightly less than projected last year, as most countries with nuclear programmes have reaffirmed their commitment to them. But given the increased uncertainty, that could change. A special Low Nuclear Case examines what would happen if the anticipated contribution of nuclear to future energy supply were to be halved. While providing a boost to renewables, such a slowdown would increase import bills, heighten energy security concerns and make it harder and more expensive to combat climate change.
  • The future for natural gas is more certain: its share in the energy mix rises and gas use almost catches up with coal consumption, underscoring key findings from a recent WEO Special Report which examined whether the world is entering a “Golden Age of Gas”. One country set to benefit from increased demand for gas is Russia, which is the subject of a special in-depth study in WEO-2011. Key challenges for Russia are to finance a new generation of higher-cost oil and gas fields and to improve its energy efficiency. While Russia remains an important supplier to its traditional markets in Europe, a shift in its fossil fuel exports towards China and the Asia-Pacific gathers momentum. If Russia improved its energy efficiency to the levels of comparable OECD countries, it could reduce its primary energy use by almost one-third, an amount similar to the consumption of the United Kingdom. Potential savings of natural gas alone, at 180 bcm, are close to Russia’s net exports in 2010.
  • In the New Policies Scenario, cumulative CO2 emissions over the next 25 years amount to three-quarters of the total from the past 110 years, leading to a long-term average temperature rise of 3.5°C. China’s per-capita emissions match the OECD average in 2035. Were the new policies not implemented, we are on an even more dangerous track, to an increase of 6°C.“As each year passes without clear signals to drive investment in clean energy, the “lock-in” of high-carbon infrastructure is making it harder and more expensive to meet our energy security and climate goals,” said Fatih Birol, IEA Chief Economist. The WEO presents a 450 Scenario, which traces an energy path consistent with meeting the globally agreed goal of limiting the temperature rise to 2°C. Four-fifths of the total energy-related CO2 emissions permitted to 2035 in the 450 Scenario are already locked-in by existing capital stock, including power stations, buildings and factories. Without further action by 2017, the energy-related infrastructure then in place would generate all the CO2 emissions allowed in the 450 Scenario up to 2035. Delaying action is a false economy: for every $1 of investment in cleaner technology that is avoided in the power sector before 2020, an additional $4.30 would need to be spent after 2020 to compensate for the increased emissions.
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IEA - OECD: Nearly 25 Percent Of Global Electricity Could Be Generated From Nuclear Pow... - 0 views

  • The latest reactor designs, now under construction around the world, build on over 50 years of technology development. The roadmap notes that these designs will need to be fully established as reliable and competitive electricity generators over the next few years if they are to become the mainstays of nuclear expansion after 2020
  • Almost one quarter of global electricity could be generated from nuclear power by 2050, making a major contribution to cutting greenhouse gas emissions. This is the central finding of the Nuclear Energy Technology Roadmap, published by the International Energy Agency (IEA) and the OECD Nuclear Energy Agency (NEA). Such an expansion will require nuclear generating capacity to more than triple over the next 40 years, a target the roadmap describes as ambitious but achievable.
  • Speaking from the East Asia Climate Forum in Seoul, IEA Executive Director Nobuo Tanaka said: “Nuclear energy is one of the key low-carbon energy technologies that can contribute, alongside energy efficiency, renewable energies and carbon capture and storage, to the decarbonisation of electricity supply by 2050.” NEA Director General Luis Echávarri stated: “Nuclear is already one of the main sources of low-carbon energy today. If we can address the challenges to its further expansion, nuclear has the potential to play a larger role in cutting CO2 emissions.”
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  • Financing the construction of new nuclear plants is expected to be a major challenge in many countries
  • No major technological breakthroughs will be needed to achieve the level of nuclear expansion envisaged, the roadmap finds. However, important policy-related, industrial, financial and public acceptance barriers to the rapid growth of nuclear power remain. The roadmap sets out an action plan with steps that will need to be taken by governments, industry and others to overcome these. A clear and stable policy commitment to nuclear energy as part of overall energy strategy is a pre requisite, as is gaining greater public acceptance for nuclear programmes. Progress in implementing plans for the disposal of high-level radioactive waste will also be vital. The international system of safeguards to prevent proliferation of nuclear technology and materials must be maintained and strengthened where necessary.
  • The latest reactor designs, now under construction around the world, build on over 50 years of technology development. The roadmap notes that these designs will need to be fully established as reliable and competitive electricity generators over the next few years if they are to become the mainstays of nuclear expansion after 2020.
  • For the longer term, the continued development of reactor and fuel cycle technologies will be important for maintaining the competitiveness of nuclear energy
  • The Nuclear Energy Technology Roadmap is the result of joint work by the IEA and the OECD Nuclear Energy Agency (NEA) and is one of a series being prepared by the IEA in co operation with other organisations and industry, at the request of the G8 summit at Aomori (Japan) in June 2008. The overall aim is to advance development and uptake of key low-carbon technologies needed to reach the goal of a 50% reduction in CO2 emissions by 2050.
  • Nuclear generating capacity worldwide is presently 370 gigawatts electrical (GWe), providing 14% of global electricity. In the IEA scenario for a 50% cut in energy-related CO2 emissions by 2050 (known as the “BLUE Map” scenario), on which the roadmap analysis is based, nuclear capacity grows to 1 200 GWe by 2050, providing 24% of global electricity at that time. Total electricity production in the scenario more than doubles, from just under 20 000 TWh in 2007 to around 41 000 TWh in 2050.
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Another blogger for nuclear energy - Decarbonise SA [08Jul11] - 0 views

  • I have just spent a pleasant hour perusing a fascinating site called Decarbonise SA (where SA = South Australia). Ben Heard, an Australian who operates a consultancy named ThinkClimate Consulting is the force behind the site. He is a man on a mission – to move South Australia’s electric power system to zero carbon dioxide emissions as quickly as possible.
  • Ben Heard, an Australian who operates a consultancy named ThinkClimate Consulting is the force behind the site. He is a man on a mission – to move South Australia’s electric power system to zero carbon dioxide emissions as quickly as possible
  • Like a growing number of thinking people who are deeply concerned by the realization that business as usual in our energy supply system is putting future generations at grave risk of a greatly changed environment, Ben evaluated all of the possible actions that might avert danger, including taking the time to reevaluate why he was reflexively opposed to nuclear energy. Though his story is told in a completely different manner than the way that Gwyneth Cravens described her own journey from antinuclear activist to pronuclear advocate in Power to Save the World, the journey of discovery was similar.
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  • Ben has produced and continues to refine a PowerPoint Presentation that is worth a look. He calls it Nuclear Power from Opponent to Proponent and he is working to find ever larger audiences to hear him tell that story.
  • His most recent post is titled Why pro-nuclear has failed when anti-nuclear has succeeded. It is an intriguing essay that points out a key factor – the antinuclear message is so simple that it can be stated in a single word that can be grasped and repeated by any two-year-old – “NO”. That is a message that is easy to propagate. In contrast, Ben believes that nuclear supporters have never developed a strong sales message.
  • Your analysis leaves open an important question whose answer offers the key to pronuclear success – “Why?”
  • Here is a copy of the comment that I left on Decarbonise SA
  • The mission of the antinuclear movement is clear enough, as you stated. It is a simple “NO”. However, pronuclear activists hand that opposition all of the moral strength that they need by accepting the premise that the basis for the “NO” is fear of radiation or fear of the bomb or fear of the possibility of a massively damaging accident that never seems to actually happen.
  • The real strength of the opposition to nuclear comes from the people who derive their wealth and power from the whole range of economic activities required to extract, refine, transport, distribute and consume the hydrocarbons that produce the emissions that you want to stop. Fossil fuel pushers have a fundamental reason for disliking clean, concentrated, abundant, affordable nuclear energy. They hold sway in a LOT of decision making bodies that can delay nuclear projects and add to their cost. They have influence in the media due to their continuous use of paid advertising campaigns sustained over many decades. They have influence in foundations that have been formed from fossil fuel derived wealth and they have influence in powerful unions like those associated with the railroads that derive most of their steady income from moving bulky fuels like oil and coal.
  • Your message of DecarboniseSA scares the heck out of the very rich and powerful people who are rich and powerful because THEY SELL CARBON!
  • The real way to defeat the “NO” to nuclear energy is to find people who benefit from “YES” to nuclear energy. The fuel suppliers have concentrated strength, but the majority of the world’s population does not supply fuel; they consume fuel and have to pay high prices, accept nasty pollution, and suffer through periods of supply constraints. Some of those consumers are major corporations in their own right and have a lot of sway – they just need to be told (over and over again) why fission is so much better than combustion.
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Irreversible Climate Change Looms Within Five Years [09Nov11] - 0 views

  • LONDON, UK, November 9, 2011 (ENS) - Unless there is a "bold change of policy direction," the world will lock itself into an insecure, inefficient and high-carbon energy system, the International Energy Agency warned at the launch of its 2011 World Energy Outlook today in London. The report says there is still time to act, but despite steps in the right direction the door of opportunity is closing
  • The agency's warning comes at a critical time in international climate change negotiations, as governments prepare for the annual UN climate summit in Durban, South Africa, from November 28.
  • international agreement whose effect is put in place by 2017, then the door will be closed forever," IEA Chief Economist Fatih Birol warned today. "Growth, prosperity and rising population will inevitably push up energy needs over the coming decades. But we cannot continue to rely on insecure and environmentally unsustainable uses of energy," said IEA Executive Director Maria van der Hoeven. "Governments need to introduce stronger measures to drive investment in efficient and low-carbon technologies," she said.
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  • "The Fukushima nuclear accident, the turmoil in parts of the Middle East and North Africa and a sharp rebound in energy demand in 2010 which pushed CO2 emissions to a record high, highlight the urgency and the scale of the challenge," van der Hoeven said.
  • Some key trends are pointing in worrying directions, the agency told reporters today. CO2 emissions have rebounded to a record high, the energy efficiency of global economy worsened for second straight year and spending on oil imports is near record highs.
  • World Energy Outlook's central New Policies Scenario, which assumes that recent government commitments are implemented in a cautious manner, primary energy demand increases by one-third between 2010 and 2035, with 90 percent of the growth in non-OECD economies. In the New Policies Scenario, cumulative carbon dioxide emissions over the next 25 years amount to three-quarters of the total from the past 110 years, leading to a long-term average temperature rise of 3.5 degrees C. "Were the new policies not implemented, we are on an even more dangerous track, to an increase of six degrees C. The IEA projects that China will consolidate its position as the world's largest energy consumer. It consumes nearly 70 percent more energy than the United States by 2035, even though, by then, per capita demand in China is still less than half the level in the United States. The share of fossil fuels in global primary energy consumption falls from around 81 percent today to 75 percent in 2035.
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Let's go forward, the future will catch up later [12Oct11] - 0 views

shared by D'coda Dcoda on 12 Oct 11 - No Cached
  • That slogan in the title above is posted at the headquarters building of Enel in Rome. Enel is one of the leading European energy companies, and European Energy Review has just published an interview with CEO Fulvio Conti where he mentioned that particular fact. I like that slogan. Conti also said that investments in the energy sector need to look ahead for a long time. It can take ten years from decision to realization of some project, which will be operating for another 40 years, so in the planning stage you need to be able to look 50 years ahead.
  • Enel has a total production capacity of 97 GW, of which 34 GW are renewable energy. Only 22 percent of the revenue from renewable is from subsidies. As Conti said:
  • In renewables, we go where the natural resources offer the best returns, e.g. in Brazil or Mexico for solar and wind power. Subsidies will come and go. Our investments are for the long term. We need to be able to get a return on our investments without subsidies. With our renewable power portfolio, only 22% of our revenues came from subsidies last year. But we are moving through difficult times, with slower growth. I wonder how the natural resources of Mongolia compare to Brazil or Mexico. There seems to be some major untapped potential in the Gobi.
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  • And if you are looking fifty years ahead, fossil fuel will only become more expensive. Competing against oil is much more fun with prices at over $100 a barrel right now than at the $17 to 19 in 2008 dollars a barrel cost in 1960, when OPEC was founded.
  • The business case for solar and wind energy will always include the fact that fuel is free. The importance of that fact varies with the cost of fossil fuels, even when not factoring in the costs of global warming. Another quote from the interview:
  • The target of the EU is to see the electricity sector almost completely decarbonised by 2050. Is that achievable? 2050 is a good time span, assuming that technology will continue to improve. Today we at Enel deliver 48% of our power carbon-free. We need technological development to do away with the other 52%. This could be through renewables, but also carbon capture and storage. There will be countries that will still depend on coal and gas, so we cannot rule out CCS. We are working on CCS, it’s there, but you have to prove you can do it economically. We have 40 years for the whole development towards carbon-free electricity generation. We undertook that commitment and I am sticking to it.
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Time is of the essence at Hanford site [06Jun13] - 0 views

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    The Hanford Nuclear Reservation, along the Columbia River in Benton County, was built in our own back yard in 1943 to produce plutonium as part of the top-secret Manhattan Project. Hanford's 56 million gallons of the most contaminated nuclear waste in the western hemisphere is a true horror story. There are 177 storage tanks holding this waste; 149 of these are older single-shell carbon steel tanks, some there since the 1940s. Many have a life span of merely 20 years. There is no surprise that tanks are decaying.
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#Fukushima I Nuke Plant Reactor 3: Videos of Packbots Cleaning the Guide Rail and Findi... - 0 views

  • First, the video of Packbots' cleaning operation on November 18 of the guide rails to the Containment Vessel hatch in Reactor 3 reactor building 1st floor. As one Packbot wipes the rail and holds the towel up in the air, you see the water is dripping. The droplets look clear, and not sludge-like.
  • By the way, it is false information that the video was taken by a human worker on the scene. No way even TEPCO would knowingly send a carbon-based worker to videotape in 1.3 sievert/hr (as of November 14) environment. (Human workers entering and finding high-radiation spots is another matter.) One Packbot did the cleaning, while the other videotaped the effort by its colleague. Both were remotely operated by carbon-based colleagues from the PCs.And here's the video where Packbots went back the next day (November 19) to the guide rails to inspect the cleaning job and measure the radiation again. We know that they found out their cleaning operation didn't reduce the radiation levels along the rails; the levels went up (see yesterday's post). The guide rails, despite the cleaning operation, look wet:
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Electric cars may not be so green after all, says British study [10Jun11] - 0 views

  • An electric car owner would have to drive at least 129,000km before producing a net saving in CO2. Many electric cars will not travel that far in their lifetime because they typically have a range of less than 145km on a single charge and are unsuitable for long trips. Even those driven 160,000km would save only about a tonne of CO2 over their lifetimes.
  • The British study, which is the first analysis of the full lifetime emissions of electric cars covering manufacturing, driving and disposal, undermines the case for tackling climate change by the rapid introduction of electric cars.
  • The Committee on Climate Change, the UK government watchdog, has called for the number of electric cars on Britain's roads to increase from a few hundred now to 1.7 million by 2020.
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  • The study was commissioned by the Low Carbon Vehicle Partnership, which is jointly funded by the British government and the car industry. It found that a mid-size electric car would produce 23.1 tonnes of CO2 over its lifetime, compared with 24 tonnes for a similar petrol car. Emissions from manufacturing electric cars are at least 50 per cent higher because batteries are made from materials such as lithium, copper and refined silicon, which require much energy to be processed.
  • Many electric cars are expected to need a replacement battery after a few years. Once the emissions from producing the second battery are added in, the total CO2 from producing an electric car rises to 12.6 tonnes, compared with 5.6 tonnes for a petrol car. Disposal also produces double the emissions because of the energy consumed in recovering and recycling metals in the battery. The study also took into account carbon emitted to generate the grid electricity consumed.
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TVA's Environmental and Energy Future - Relies on Nuclear Power and Less on Coal [17Sep10] - 0 views

  • The Tennessee Valley Authority on Thursday issued a draft of its Integrated Resource Plan, a comprehensive study that will help guide efforts to meet regional electricity needs over the next 20 years. Titled "TVA's Environmental and Energy Future," the study analyzes potential combinations of economic and regulatory trends in the coming years and provides recommendations for addressing them. The plan's main purpose is to help TVA meet the region's future energy challenges in ways that maintain reliable power supplies, competitive prices, improved environmental performance and continued financial strength.
  • TVA's yearlong analysis included input from numerous stakeholders including state agencies, power distributors, environmental groups, universities and the general public. The study yielded several likely probabilities for TVA, including: Nuclear expansion will continue, with the potential to eventually overtake coal as the leading electricity source; TVA may idle a portion of its coal generation fleet, as coal units become older and less economical under tighter regulations; Energy efficiency and demand response, as well as renewable generation, will play an increasing role in future resource options; Natural gas capacity additions will be a viable resource option and a key source of generation flexibility for TVA; The intensity of TVA's carbon dioxide, nitrogen oxide, sulfur dioxide and mercury emissions will continue to decrease.
  • Using the study's methodology, TVA examined seven possible long-term scenarios for the next two decades, based on factors such as economic growth, inflation, fuel prices and the regulatory environment. They are: Dramatic economic recovery Environmental focus becoming a greater national priority Prolonged economic malaise Introduction of game-changing energy-related technology Greater U.S. energy independence Carbon regulation creating an economic downturn Current approach/baseline
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  • The Integrated Resource Plan process also developed various possible strategies that TVA might use to meet the region's future power needs. Each strategy was analyzed to create 20-year power generation portfolios -- or combinations of electricity resources -- for TVA to consider. Each portfolio was rated using factors such as cost, risk and environmental impact
  • "TVA's Integrated Resource Plan process is a rigorous one that is supportive of TVA's renewed vision and will guide the corporation as it leads the region and the nation toward a cleaner and more secure energy future, relying more on nuclear power and energy efficiency and less on coal," said Van Wardlaw, TVA's executive vice president of Enterprise Relations, who is leading the Integrated Resource Plan effort
  • The TVA Board of Directors has adopted a renewed vision for the federal corporation to be one of the nation's leading providers of cleaner low-cost energy by 2020, increasing its use of nuclear power and energy efficiency and improving its environmental performance
  • TVA completed its previous Integrated Resource Plan, titled "Energy Vision 2020," in 1995. The new plan will update the earlier study, based upon changes in regulations and legislation, the marketplace for electric generating utilities and customer demand.
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Senator Lamar Alexander: "Nuclear Power Is the Most Reliable and Useful Source of Green... - 0 views

  • U.S. Senator Lamar Alexander (R-Tenn.), chairman of the Senate Republican Conference, delivered a speech this week at the International V.M. Goldschmidt Conference in Knoxville.  Alexander serves on the Senate Environment and Public Works Committee and is the chairman of the Tennessee Valley Authority Congressional Caucus.  His remarks as prepared follow:
  • When
  • in a speech in Oak Ridge in May of 2009, I called for America to build 100 new nuclear plants during the next twenty years.  Nuclear power produces 70 percent of our pollution-free, carbon-free electricity today.  It is the most useful and reliable source of green electricity today because of its tremendous energy density and the small amount of waste that it produces.  And because we are harnessing the heat and energy of the earth itself through the power of the atom, nuclear power is also natural.
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  • Forty years ago, nuclear energy was actually regarded as something of a savior for our environmental dilemmas because it didn’t pollute.  And this was well before we were even thinking about global warming or climate change.  It also didn’t take up a great deal of space.  You didn’t have to drown all of Glen Canyon to produce 1,000 megawatts of electricity.  Four reactors would equal a row of wind turbines, each one three times as tall as Neyland Stadium skyboxes, strung along the entire length of the 2,178-mile Appalachian Trail.   One reactor would produce the same amount of electricity that can be produced by continuously foresting an area one-and-a-half times the size of the Great Smoky Mountains National Park in order to create biomass.  Producing electricity with a relatively small number of new reactors, many at the same sites where reactors are already located, would avoid the need to build thousands and thousands of miles of new transmission lines through scenic areas and suburban backyards. 
  • While nuclear lost its green credentials with environmentalists somewhere along the way, some are re-thinking nuclear energy because of our new environmental paradigm – global climate change.  Nuclear power produces 70 percent of our carbon-free electricity today.  President Obama has endorsed it, proposing an expansion of the loan guarantee program from $18 billion to $54 billion and making the first award to the Vogtle Plant in Georgia.  Nobel Prize-winning Secretary of Energy Steven Chu wrote recently in The Wall Street Journal about developing a generation of mini-reactors that I believe we can use to repower coal boilers, or more locally, to power the Department of Energy’s site over in Oak Ridge.  The president, his secretary of energy, and many environmentalists may be embracing nuclear because of the potential climate change benefits, but they are now also remembering the other positive benefits of nuclear power that made it an environmental savior some 40 years ago
  • The Nature Conservancy took note of nuclear power’s tremendous energy density last August when it put out a paper on “Energy Sprawl.”  The authors compared the amount of space you need to produce energy from different technologies – something no one had ever done before – and what they came up with was remarkable.  Nuclear turns out to be the gold standard.  You can produce a million megawatts of electricity a year from a nuclear reactor sitting on one square mile.  That’s enough electricity to power 90,000 homes.  They even included uranium mining and the 230 square miles surrounding Yucca Mountain in this calculation and it still comes to only one square mile per million megawatt hours
  • And for all that, each turbine has the capacity to produce about one-and-a-half megawatts.  You need three thousand of these 50-story structures to equal the output of one nuclear reactor
  • When people say “we want to get our energy from wind,” they tend to think of a nice windmill or two on the horizon, waving gently – maybe I’ll put one in my back yard.   They don’t realize those nice, friendly windmills are now 50 stories high and have blades the length of football fields.  We see awful pictures today of birds killed by the Gulf oil spill.  But one wind farm in California killed 79 golden eagles in one year. The American Bird Conservancy says existing turbines can kill up to 275,000 birds a year.
  • Coal-fired electricity needs four square miles, because you have to consider all the land required for mining and extraction.  Solar thermal, where they use the big mirrors to heat a fluid, takes six square miles.  Natural gas takes eight square miles and petroleum takes 18 square miles – once again, including all the land needed for drilling and refining and storing and sending it through pipelines.  Solar photovoltaic cells that turn sunlight directly into electricity take 15 square miles and wind is even more dilute, taking 30 square miles to produce that same amount of electricity.
  • , wind power can be counted on to be there 10 to 15 percent of the time when you need it.  TVA can count on nuclear power 91 percent of the time, coal, 60 percent of the time and natural gas about 50 percent of the time.  This is why I believe it is a taxpayer rip-off for wind power to be subsidized per unit of electricity at a rate of 25 times the subsidy for all other forms of electricity combined. 
  • the “problem of nuclear waste” has been overstated because people just don’t understand the scale or the risk.  All the high-level nuclear waste that has ever been produced in this country would fit on a football field to a height of ten feet.  That’s everything.  Compare that to the billion gallons of coal ash that slid out of the coal ash impoundment at the Kingston plant and into the Emory River a year and a half ago, just west of here.  Or try the industrial wastes that would be produced if we try to build thousands of square miles of solar collectors or 50-story windmills.  All technologies produce some kind of waste.  What’s unique about nuclear power is that there’s so little of it.
  • Now this waste is highly radioactive, there’s no doubt about that.  But once again, we have to keep things in perspective.  It’s perfectly acceptable to isolate radioactive waste through storage.  Three feet of water blocks all radiation.  So does a couple of inches of lead and stainless steel or a foot of concrete.  That’s why we use dry cask storage, where you can load five years’ worth of fuel rods into a single container and store them right on site.  The Nuclear Regulatory Commission and Energy Secretary Steven Chu both say we can store spent fuel on site for 60 or 80 years before we have to worry about a permanent repository like Yucca Mountain
  • then there’s reprocessing.  Remember, we’re now the only major nuclear power nation in the world that is not reprocessing its fuel.  While we gave up reprocessing in the 1970s, the French have all their high-level waste from 30 years of producing 80 percent of their electricity stored beneath the floor of one room at their recycling center in La Hague.  That’s right; it all fits into one room.  And we don’t have to copy the French.  Just a few miles away at the Oak Ridge National Laboratory they’re working to develop advanced reprocessing technologies that go well beyond what the French are doing, to produce a waste that’s both smaller in volume and with a shorter radioactive life.  Regardless of what technology we ultimately choose, the amount of material will be astonishingly small.  And it’s because of the amazing density of nuclear technology – something we can’t even approach with any other form of energy
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The Environmental Case for Nuclear Energy - Korea [26Sep11] - 0 views

  • Six months after the Fukushima disaster, the repercussions of history’s second-largest nuclear meltdown are still being felt, not only in Japan but around the world. Predictably, people are rethinking the wisdom of relying on nuclear power. The German and Swiss governments have pledged to phase out the use of nuclear power, and Italy has shelved plans to build new reactors. Public debate on future nuclear energy use continues in the United Kingdom, Japan, Finland, and other countries.So far, it is unclear what the reaction of the Korean government will be. Certainly, the public backlash to nuclear energy that has occurred elsewhere in the world is also evident in Korea; according to one study, opposition to nuclear energy in Korea has tripled since the Fukushima disaster. However, there are countervailing considerations here as well, which have caused policy-makers to move cautiously. Korea’s economy is often seen as particularly reliant on the use of nuclear power due to its lack of fossil fuel resources, while Korean companies are some of the world’s most important builders (and exporters) of nuclear power stations.
  • There are three primary reasons why nuclear power is safer and greener than power generated using conventional fossil fuels. First ― and most importantly ― nuclear power does not directly result in the emission of greenhouse gases. Even when you take a life-cycle approach and factor in the greenhouse gas emissions from the construction of the plant, there is no contest. Fossil fuels ― whether coal, oil, or natural gas ― create far more global warming.
  • The negative effects of climate change will vastly outweigh the human and environmental consequences of even a thousand Fukushimas. This is not the place to survey all the dire warnings that have been coming out of the scientific community; suffice it to quote U.N. Secretary General Ban Ki-moon’s concise statement that climate change is the world’s “only one truly existential threat … the great moral imperative of our era.” A warming earth will not only lead to death and displacement in far-off locales, either. Typhoons are already hitting the peninsula with greater intensity due to the warming air, and a recent study warns that global warming will cause Korea to see greatly increased rates of contagious diseases such as cholera and bacillary dysentery.
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  • As the world’s ninth largest emitter of greenhouse gases, it should be (and is) a major priority for Korea to reduce emissions, and realistically that can only be accomplished by increasing the use of nuclear power. As Barack Obama noted with regard to the United States’ energy consumption, “Nuclear energy remains our largest source of fuel that produces no carbon emissions. It’s that simple. (One plant) will cut carbon pollution by 16 million tons each year when compared to a similar coal plant. That’s like taking 3.5 million cars off the road.” Environmentalists have traditionally disdained nuclear power, but even green activists cannot argue with that logic, and increasing numbers of them ― Patrick Moore, James Lovelock, Stewart Brand and the late Bishop Hugh Montefiore being prominent examples ― have become supporters of the smart use of nuclear power.
  • Second, the immediate dangers to human health of conventional air pollution outweigh the dangers of nuclear radiation. In 2009, the Seoul Metropolitan Government measured an average PM10 (particulate) concentration in the city of 53.8 g/m3, a figure that is roughly twice the level in other developed nations. According to the Gyeonggi Research Institute, PM10 pollution leads to 10,000 premature deaths per year in and around Seoul, while the Korea Economic Institute has estimated its social cost at 10 trillion won. While sulfur dioxide levels in the region have decreased significantly since the 1980s, the concentration of nitrogen dioxide in the air has not decreased, and ground-level ozone levels remain high. Unlike fossil fuels, nuclear power does not result in the release of any of these dangerous pollutants that fill the skies around Seoul, creating health hazards that are no less serious for often going unnoticed.
  • And third, the environmental and safety consequences of extracting and transporting fossil fuels are far greater than those involved with the production of nuclear power. Korea is one of the largest importers of Indonesian coal for use in power plants, for example. This coal is not always mined with a high level of environmental and safety protections, with a predictable result of air, water, and land pollution in one of Asia’s most biologically sensitive ecosystems. Coal mining is also one of the world’s more dangerous occupations, as evidenced by the many tragic disasters involving poorly managed Chinese mines. While natural gas is certainly a better option than coal, its distribution too can be problematic, whether by ship or through the recently proposed pipeline that would slice down through Siberia and North Korea to provide direct access to Russian gas.
  • What about truly green renewable energy, some might ask ― solar, wind, geothermal, hydroelectric, and tidal energy? Of course, Korea would be a safer and more sustainable place if these clean renewable resources were able to cover the country’s energy needs. However, the country is not particularly well suited for hydroelectric projects, while the other forms of renewable energy production are expensive, and are unfortunately likely to remain so for the foreseeable future. The fact is that most Koreans will not want to pay the significantly higher energy prices that would result from the widespread use of clean renewables, and in a democratic society, the government is unlikely to force them to do so. Thus, we are left with two realistic options: fossil fuels or nuclear. From an environmental perspective, it would truly be a disaster to abandon the latter.
  • By Andrew Wolman Andrew Wolman is an assistant professor at the Hankuk University of Foreign Studies Graduate School of International and Area Studies, where he teaches international law and human rights.
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It's 2050: Do you know where your nuclear waste is? [09Sep11] - 1 views

  • Though nuclear power produces electricity with little in the way of carbon dioxide emissions, it, like other energy sources, is not without its own set of waste products. And in the case of nuclear power, most of these wastes are radioactive.1 Some very low level nuclear wastes can be stored and then disposed of in landfill-type settings. Other nuclear waste must remain sequestered for a few hundred years in specially engineered subsurface facilities; this is the case with low level waste, which is composed of low concentrations of long-lived radionuclides and higher concentrations of short-lived ones. Intermediate and high-level waste both require disposal hundreds of meters under the Earth’s surface, where they must remain out of harm’s way for thousands to hundreds of thousands of years (IAEA, 2009). Intermediate level wastes are not heat-emitting, but contain high concentrations of long-lived radionuclides. High-level wastes, including spent nuclear fuel and wastes from the reprocessing of spent fuel, are both heat-emitting and highly radioactive.
  • When it comes to the severity of an accident at a nuclear facility, there may be little difference between those that occur at the front end of the nuclear power production and those at the back end: An accident involving spent nuclear fuel can pose a threat as disastrous as that posed by reactor core meltdowns. In particular, if spent fuel pools are damaged or are not actively cooled, a major crisis could be in sight, especially if the pools are packed with recently discharged spent fuel.
  • Elements of success
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  • All countries with well-established nuclear programs have found themselves requiring spent fuel storage in addition to spent fuel pools at reactors. Some, like the US, use dry storage designs, such as individual casks or storage vaults that are located at reactor sites; other countries, Germany for one, use away-from-reactor facilities. Sweden has a large underground pool located at a centralized facility, CLAB, to which different reactors send their spent fuel a year after discharge, so spent fuel does not build up at reactor sites. Dry storage tends to be cheaper and can be more secure than wet storage because active circulation of water is not required. At the same time, because dry storage uses passive air cooling, not the active cooling that is available in a pool to keep the fuel cool, these systems can only accept spent fuel a number of years after discharge.6
  • The United States had been working toward developing a high-level waste repository at Yucca Mountain, Nevada; this fell through in 2010, when the Obama administration decided to reverse this decision, citing political “stalemate” and lack of public consensus about the site. Instead, the Obama administration instituted the Blue Ribbon Commission on America’s Nuclear Future to rethink the management of the back end of the nuclear fuel cycle.8 The US can flaunt one success, though. The Waste Isolation Pilot Project (WIPP), located near Carlsbad in southern New Mexico, is actually the only operating deep geologic repository for intermediate level nuclear waste, receiving waste since 1998. In the case of WIPP, it only accepts transuranic wastes from the nuclear weapons complex. The site is regulated solely by the Environmental Protection Agency, and the state of New Mexico has partial oversight of WIPP through its permitting authority established by the Resource Conservation and Recovery Act. The city of Carlsbad is supportive of the site and it appears to be tolerated by the rest of the state.9
  • France has had more success after failing in its first siting attempt in 1990, when a granite site that had been selected drew large protests and the government opted to rethink its approach to nuclear waste disposal entirely. In 2006, the government announced that it needed a geologic repository for high-level waste, identified at least one suitable area, and passed laws requiring a license application to be submitted by 2015 and the site to begin receiving high-level waste by 2025.
  • Canada recently rethought the siting process for nuclear waste disposal and began a consensus-based participatory process. The Canadian Nuclear Waste Management Organization was established in 2002, after previous attempts to site a repository failed. The siting process began with three years’ worth of conversations with the public on the best method to manage spent fuel. The organization is now beginning to solicit volunteer communities to consider a repository, though much of the process remains to be decided, including the amount and type of compensation given to the participating communities.
  • the most difficult part of the back end of the fuel cycle is siting the required facilities, especially those associated with spent fuel management and disposal. Siting is not solely a technical problem—it is as much a political and societal issue. And to be successful, it is important to get the technical and the societal and political aspects right.
  • After weathering the Fukushima accident, and given the current constraints on carbon dioxide emissions and potential for growth of nuclear power, redefinition of a successful nuclear power program is now required: It is no longer simply the safe production of electricity but also the safe, secure, and sustainable lifecycle of nuclear power, from the mining of uranium ores to the disposal of spent nuclear fuel. If this cannot be achieved and is not thought out from the beginning, then the public in many countries will reject nuclear as an energy choice.
  • Certain elements—including an institution to site, manage, and operate waste facilities—need to be in place to have a successful waste management program. In some countries, this agency is entirely a government entity, such as the Korea Radioactive Waste Management Organization. In other countries, the agency is a corporation established by the nuclear industry, such as SKB in Sweden or Posiva Oy in Finland. Another option would be a public– private agency, such as Spain’s National Company for Radioactive Waste or Switzerland’s National Cooperative for the Disposal of Radioactive Waste.
  • Funding is one of the most central needs for such an institution to carry out research and development programs; the money would cover siting costs, including compensation packages and resources for local communities to conduct their own analyses of spent fuel and waste transportation, storage, repository construction, operations, security and safeguards, and future liabilities. Funds can be collected in a number of ways, such as putting a levy on electricity charges (as is done in the US) or charging based on the activity or volume of waste (Hearsey et al., 1999). Funds must also be managed—either by a waste management organization or another industry or government agency—in a way that ensures steady and ready access to funds over time. This continued reliable access is necessary for planning into the future for repository operations.
  • the siting process must be established. This should include decisions on whether to allow a community to veto a site and how long that veto remains operational; the number of sites to be examined in depth prior to site selection and the number of sites that might be required; technical criteria to begin selecting potential sites; non-technical considerations, such as proximity to water resources, population centers, environmentally protected areas, and access to public transportation; the form and amount of compensation to be offered; how the public is invited to participate in the site selection process; and how government at the federal level will be involved.
  • The above are all considerations in the siting process, but the larger process—how to begin to select sites, whether to seek only volunteers, and so on—must also be determined ahead of time. A short list of technical criteria must be integrated into a process that establishes public consent to go forward, followed by many detailed studies of the site—first on the surface, then at depth. There are distinct advantages to characterizing more than one site in detail, as both Sweden and Finland have done. Multiple sites allow the “best” one to be selected, increasing public approval and comfort with the process.
  • he site needs to be evaluated against a set of standards established by a government agency in the country. This agency typically is the environmental agency or the nuclear regulatory agency. The type of standards will constrain the method by which a site will be evaluated with regard to its future performance. A number of countries use a combination of methods to evaluate their sites, some acknowledging that the ability to predict processes and events that will occur in a repository decrease rapidly with each year far into the future, so that beyond a few thousand years, little can be said with any accuracy. These countries use what is termed a “safety case,” which includes multiple lines of evidence to assure safe repository performance into the future.
  • Moving forward
  • France, Canada, and Germany also have experienced a number of iterations of repository siting, some with more success than others. In the 1970s, Germany selected the Gorleben site for its repository; however, in the late 1990s, with the election of a Red–Green coalition government (the Greens had long opposed Gorleben), a rethinking of repository siting was decreed, and the government established the AkEnd group to re-evaluate the siting process. Their report outlined a detailed siting process starting from scratch, but to date too much political disagreement exists to proceed further.
  • Notes
  • Nuclear wastes are classified in various ways, depending on the country or organization doing the classification. The International Atomic Energy Agency (IAEA) notes six general categories of waste produced by civil nuclear power reactors: exempt waste, very short-lived waste, and very low level waste can be stored and then disposed of in landfill-type settings; low level waste, intermediate level waste, and high-level waste require more complex facilities for disposal.
  • Sweden is currently the country closest to realizing a final solution for spent fuel, after having submitted a license application for construction of a geologic repository in March 2011. It plans to open a high-level waste repository sometime after 2025, as do Finland and France.
  • Some countries, such as Sweden, Finland, Canada, and, until recently, the US, plan to dispose of their spent fuel directly in a geologic repository. A few others, such as France, Japan, Russia, and the UK have an interim step. They reprocess their spent fuel, extract the small amount of plutonium produced during irradiation, and use it in new mixed oxide (MOX) fuel. Then they plan to dispose of the high-level wastes from reprocessing in a repository.
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University of Tokyo and Japan Atomic Energy Agency Support POTRBLOG Analysis On Fukushi... - 0 views

  • On May 4th 2011 the Potrblog team described the Fukushima 3 explosion and spent fuel rod ejections as the result of spent fuel cooling water becoming supersaturated with hydrogen
  • "It is also likely that the water in the fuel cooling pond was supersaturated with hydrogen. When the explosion occurred, the hydrogen in solution in the cooling pond water would have frothed up, burned, and deflagrated, sending the fuel rods out of the top of the holding pond. Visualize a bottle of Coke dropping; the resultant the carbon dioxide coming out of solution and shooting out of the end; now instead of carbon dioxide picture it as burning hydrogen shooting out"
  • Empirical lab research by the University of Tokyo and the Japanese Atomic Energy Agency now confirms the generation of hydrogen in such fuel pools. They attribute the explosion in Fukushima 4 to hydrogen generated in fuel pools. The POTRBLOG team suspects that unlike Fukushima 3, the Fukushima 4 explosion did not manifest a large BLACK mushroom cloud because the Fukushima 4 explosion triggered before the fuel pools could become supersaturated with Hydrogen and Oxygen.This early triggering, as compared to Fukushima 3, would have limited damage to the roof line of the Fukushima 4 building. For POTRBLOG's full analysis on the Unit 3 explosion see:Was the Fukushima Daiichi #3 EXPLOSION a detonation or deflagration?
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#Fukushima I Nuke Plant: TEPCO Ready to Drive Carbon-Based Workers Even Harder [11Sep11] - 0 views

  • TEPCO announced on September 9 that 6 workers entered the reactor building of Reactor 3 at Fukushima I Nuclear Power Plant, and installed a water gauge to measure the amount of contaminated water in the basement. According to the company, the radiation exposure of the 6 workers was between 0.33 to 5.26 millisieverts. The measurement using the water gauge is set to start on or after September 12.
  • ... TEPCO also disclosed the plan to start removing the debris from the upper floors of Reactors 3 and 4. The work will start in Reactor 3 on September 10, and it will start in Reactor 4 within this month. Upper floors of Reactors 3 and 4 are littered with damaged ceiling panels and exterior wall panels, and it is hoped that the spread of radioactive materials will be suppressed by removing the debris.
  • Removing the debris will stir up the radioactive materials instead of suppressing them, won't it? Not to mention exposing the workers to an inadvertent 10-plus sieverts/hour super hot spot, as it happened near the exhaust stack between Reactors 1 and 2?From the tweets by the worker at Fukushima I Nuke Plant, it is evident that TEPCO is fast running out of money (to spend on the accident, apparently not on its retiring executives) and carbon-based workers to do further work. The worker also tweeted a week or so ago that the construction people were active, already clearing debris in Reactor 4.
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  • The construction companies (Kajima, Taisei are at Fukushima, I think) are the worst offenders in Japan traditionally when it comes to exploiting the temporary, contract workers. Apparently, according to the tweets by the worker mentioned above, there are workers hired by them who know little about radiation danger at Fukushima I Nuke Plant where a 10-sieverts/hr extreme hot spot can be just around the corner.Perhaps I shouldn't say "TEPCO" in the title. It is not really TEPCO who is ready and willing to expose workers to high radiation by driving them to clean up the place. TEPCO asks its main subcontractors (in this case, large construction companies) to figure out a way to complete the task of clearing the debris and tells them the budget. The subcontractors tell their subcontractors , who then tell their subcontractors....(up to 6th or 7th degree removed from TEPCO) to figure out a way, and finally some fresh warm bodies are brought in and put to work. They may or may not know the risk. The task is simple, just removing the debris from the floors with full protection gear and face mask, climbing up and down the stairs as the elevators are broken. All they need is physical strength.
  • (By the way, he also says the flashing bright light in TEPCO's livecam at night is from the construction people. Not that you have to believe him necessarily, but just for your information.)By putting in many layers of subcontracting, everyone can deny that they are willingly and actively putting workers at risk.Ah the country is broken (and broke), and mountains and rivers are not the same any more, but the subcontracting and "dango" (collusion) are hard to die in Japan.
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Short-Termism and Energy Revolutions [30Sep11] - 0 views

  • The calls these days for a technological “energy revolution” are widespread. But how do you spark breakthroughs when the natural bias of businesses, investors and governments is toward the here and now? In governance, politics creates a bias toward the short term. This is why bridges sometimes fall down for lack of maintenance. That’s also why it’s so hard to sustain public investment in the research and intellectual infrastructure required to make progress on the frontiers of chemistry, biology and physics, even though it is this kind of work that could produce leaps in how we harvest, harness, store and move energy. (This is why I asked, “Are Chemists and Engineers on the Green Jobs List?” back in 2008.)
  • To get the idea, you only have to look at the sputtering state of President Obama’s mostly unfunded innovation hubs, or look once again at the energy sliver in the graph showing America’s half-century history of public investment in basic scientific research. (There’s not much difference in research patterns in most other industrialized countries.) You can also look at the first Quadrennial Technology Review produced by the Department of Energy (summarized by Climate Progress earlier this week). The review was conducted after the President’s Council of Advisers on Science and Technology wisely recommended regular reviews of this sort as part of its prescription for accelerating change in energy technologies.
  • This excerpt from the new review articulates the tension pretty transparently for a government report: There is a tension between supporting work that industry doesn’t— which biases the department’s portfolio toward the long term—and the urgency of the nation’s energy challenges. The appropriate balance requires the department to focus on accelerating innovation relevant to today’s energy technologies, since such evolutionary advances are more likely to have near- to mid-term impact on the nation’s challenges. We found that too much effort in the department is devoted to research on technologies that are multiple generations away from practical use at the expense of analyses, modeling and simulation, or other highly relevant fundamental engineering research activities that could influence the private sector in the nearer term.
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  • In finding that balance, I’m not sure it’s possible to overcome the political pressures tugging agencies and officials to stress refinement and deployment of known and maturing technologies (even though that’s where industry and private investors are most focused).
  • On the left, the pressure is for resources to deploy today’s “green” technology. On the right, as illustrated in a Heritage Foundation report on ways to cut President Obama’s budget for the Energy Department, the philosophy seems to be to discourage all government spending on basic inquiry related to energy.
  • According to Heritage, science “in service of a critical national interest that is not being met by the private sector” is fine if that interest is national defense, but not fine if it’s finding secure and sustainable (environmentally and economically) sources of energy.
  • I solicited reactions to the Energy Department review from a variety of technology and innovation analysts. The first to weigh in are Daniel M. Kammen, an energy technology researcher at the University of California, Berkeley, who is on leave working for the World Bank, and Robert D Atkinson, the founder and president of the Information Technology and Innovation Foundation. Here’s Kammen: The idea of a regular review and status report on both energy innovation and deployment spending is a good one. Some of the findings in the QTR review are useful, although little is new. Overall, though, this is a useful exercise, and one that should be a requirement from any major programmatic effort.
  • he real need in the R&D sector is continuity and matching an increasing portfolio of strategic research with market expansion. My former student and colleague Greg Nemet have written consistently on this: - U.S. energy research and development: Declining investment, increasing need, and the feasibility of expansion - Reversing the Incredible Shrinking Energy R&D Budget
  • Perhaps the biggest worry in this report, however, is the missing logic and value of a ’shift to near term priorities in energy efficiency and in electric vehicles.’ This may be a useful deployment of some resources, but a range of questions are simply never addressed. Among the questions that need firmer answers are:
  • Following record levels funding made available to the energy industry through the [stimulus package of spending], what are the clearly identified market failures that exist in this area that added funding will solve? Funding is always welcome, but energy efficiency in particular, can be strongly driven by regulation and standards, and because good energy efficiency innovations have such rapid payback times, would regulatory approaches, or state-federal partnerships in regulation and incentives not accomplish a great deal of what can be done in this area? Congressman Holt raises a number of key questions on related issues, while pointing to some very hopeful experiences, notably in the Apollo program, in his 16 September editorial in Science.
  • given the state-by-state laboratories we already have of differing approaches to energy efficiency, the logic of spending in this area remains to be proven (as much as we all rightly love and value and benefit from energy efficiency).
  • Near-term electric vehicle deployment. A similar story could be told here. As the director of the University of California at Berkeley’s Transportation Sustainability Research Center (http://tsrc.berkeley.edu) I am huge believer in electric vehicles [EVs]. However, the review does not make clear what advances in this area are already supported through [the Advanced Research Projects Agency for Energy], and what areas of near-term research are also not best driven though regulation, such as low-carbon fuel standards, R&D tax credits, ‘feebates’ that transfer funds from those individuals who purchase inefficient vehicles to those who purchase efficient ones. Similar to the story in energy efficiency, we do have already an important set of state-by-state experiments that have been in place for some time, and these warrant an assessment of how much innovation they have driven, and which ones do and do not have an application in scale-up at the federal level.
  • Finally, the electric vehicle landscape is already very rich in terms of plans for deployment by automakers. What are the barriers five-plus years out that the companies see research-versus-deployment and market-expansion support as the most effective way to drive change in the industry? Where will this focus put the U.S. industry relative to China?
  • There are some very curious omissions from the report, such as more detail on the need to both generate and report on jobs created in this sector — a political ‘must’ these days (see, e.g., the “green jobs” review by the Renewable and Appropriate Energy Laboratory at Berkeley) — and straightforward comparisons in the way of ‘report cards’ on how the US is stacking up relative to other key players (e.g. China, Germany…).
  • Here’s Robert Atkinson: If DOE is shifting toward a more short-term focus, this is quite disturbing.  It would mean that DOE has given up on addressing the challenge of climate change and instead is just focused on the near term goal of reducing oil imports and modestly reducing the expansion the coal fired power plants. If DOE thinks it is still focused on climate change, do they think they are fighting “American warming”?
  • If so, cutting the growth of our emissions make sense.  But its global warming and solving this means supporting the development of scalable, cheap low or no-carbon energy so that every country, rich and poor, will have an economic incentive to transitioning to cheap energy.  Increasing building efficiency, modernizing the electric grid, alternative hydrocarbon fuels, and increasing vehicle efficiency do virtually nothing to meet this goal. They are “American warming” solutions.
  • This is also troubling because (as you point out) who else is going to invest in the long-term, more fundamental, high risk, breakthrough research than the U.S. government.  It certainly won’t be VCs. And it won’t be the Chinese who are principally interested in cutting their energy imports and exporting current generation clean energy, not developing technology to save the planet.  Of course all the folks out there who have been pushing the mistaken view that we have all the clean technologies we need, will hail this as the right direction.  But it’s doing what the rest of the market has been doing in recent years – shifting from high risk, long-term research to short-term, low risk.  If the federal government is doing this it is troubling to say the least.
  • or those seeking more, here are the slides used by Steven Koonin, the physicist and former BP scientist who now is under secretary for science at the department, in presenting the review earlier this week:
  • Rolling Out the Quadrennial Technology Review Report
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UN study shows renewables can provide 80% of energy needs [10May11] - 0 views

  • Close to 80 percent of the world‘s energy supply could be met by renewables by mid-century if backed by the right enabling public policies, according to a new report from the United Nations Intergovernmental Panel on Climate Change released on May 9. The report noted that it is the absence of political will, not renewable resources, that can hinder progress: "it is not the availability of the resource, but the public policies that will either expand or constrain renewable energy development over the coming decades," according to Ramon Pichs, Co-Chair of the Working Group III. The 1,000+-page study looked at direct wind energy, solar energy;bioenergy, geothermal, hydropower and ocean energy and ran more than 164 different scenarios. It ruled out nuclear energy as cheaper way of cutting greenhouse gases stating that "renewables will contribute more to a low carbon energy supply by 2050 than nuclear power or fossil fuels using carbon capture and storage. Read the press release and the full report.
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China Wind Capacity May Reach 1,000 GW by 2050 [19Oct11] - 0 views

  • China continues to create headlines in the area of renewable energy — this time, concerning the wind power generating capacity it might reach by 2050 – some 1,000 gigawatts! China is already the world’s largest generator of wind energy capacity.The news comes from a study prepared by the National Development and Reform Commission (NDRC), which has broad control over the Chinese economy.The total of 1,000 GW would represent a dramatic increase from the 41 GW of wind power capacity it showed at the end of 2010.The Worldwatch Institute writes:
  • “The breathtaking growth of Chinese wind power illustrates how effective government policy can influence the market. Since the issuing of the renewable energy law, the government has enacted a series of policies to facilitate wind power development. One important step has been to improve the wind power pricing regulation, which uses a competitive bidding process to determine the price of wind power. Through five rounds of public tendering to issue wind concessions, policymakers have explored ways to further improve pricing and disperse worries in the industry about excessively low bidding hindering further development.”Political and economic maneuvering aside, this is positive news from a climate perspective because the potential capacity of 1,000 gigawatts would reduce the country’s carbon dioxide emissions by 1.5 gigatons a year, roughly equivalent to the combined carbon dioxide emissions of Germany, France, and Italy in 2009, the study from the NRDC’s Energy Research Institute showed.
  • Bottom line: such renewable energy capacity would generate about 17 percent of China’s electricity output in 2050, compared to the present 1 percent number.
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