Nuclear Reactor
July 3, 2012
Japanese Government Gave the go ahead in restarting the nuclear power plants in the country after all the nuclear reactors were shut down post the Fukushima […]
February 7, 2012
USA has the largest amount of spent nuclear waste in the world and it does not have a single permanent nuclear waste storage site. It is quite shocking that thousands of tons of dangerous nuclear waste is put in temporary locations waiting to start a new disaster in the Fukushima pattern. Note the greatest danger and fallout from the recent nuclear disaster was due to spent nuclear rods . The first site that was being prepared in Yucata mountains is mired in controversy despite millions of dollars being spent.
July 10, 2011
Nuclear Power has come under assault in the aftermath of the Fukushima Nuclear Accident with Nuclear becoming a four letter word.However Nuclear Energy cannot be ignored because its nuclear energy uses are unique in some applications and cannot be substituted by any other means.Nuclear Energy is responsible for generating almost 1/6th of the global production of electricity with Developed Countries like Japan,Europe and USA having 20% or more of their electricity being generated by Nuclear Fission.Currently 31 countries in the world have nuclear reactors producing electricity.The total installed nuclear generating capacity in the world is around 375 GW (WNA) with another 170 GW in planning g state and another 170 GW being proposed.Despite the massive opposition that nuclear power has run into,nuclear companies and nuclear power stocks are not going away soon.This is because of the massive installed base and the nuclear plans of emerging countries.For example Middle Eastern countries like Saudi Arabia,UAE are going ahead with their nuclear power plans as are countries like India and Vietnam.
July 7, 2011
Nuclear Energy has come under the spotlight after the Japanese nuclear plant disaster with people focusing on the strengths and weaknesses of nuclear power.One of the most important aspects of nuclear based power is that it is highly efficient.Nuclear Energy is currently the most efficient power source in terms of the fuel required,land area needed and also the waste it produces.The reason for this is that nuclear based electricity is primarily produced from nuclear reactions while other forms of energy like natural gas,coal and oil use chemical reactions.Other such as wind energy convert mechanical energy into useful energy.Nuclear Power currently is mostly produced through nuclear fission as nuclear fusion is still in infancy and its not certain that mankind will be able to use nuclear fusion in a safe manner to generate energy.
July 7, 2011
Nuclear Energy has become a hugely contorversial topic after the Fukushima incident in Japan where a nuclear disaster took place because of the earthquake and tsunami.Both the pro and anti nuclear groups have come out with strident arguments for and against nuclear energy.However in some countries like Germany,Switzerland the anti nuclear sentiment has gained so much support that they have decided to permanently end nuclear electricity generation despite the high costs.Before this nuclear based power was gaining ascendancy leading many to call it a nuclear renaissance as countries like China and India made plans to increase their nuclear power plant capacities massively.But the nuclear accident has thrown a spanner in the works with huge protests being seen in India and China despite its authoritarianism also slowing down its nuclear expansion plans.
July 7, 2011
Wave Energy is one of the niche renewable energy technologies which is still in its infancy stage.While other forms of alternative energy like solar,wind and biomass see hundreds of billions of dollars in investment each year,wave energy does not see even $1 billion in investment.This is because Wave Energy is still much behind in the technology curve in terms of costs and reliability.Also there are many varied approaches and technologies to harness the power of the ocean waves.However developed countries like UK are promoting this renewable energy since it has huge potential like solar and wind energy.Given the energy shortages that we are facing,we need to promote all forms of sustainable green energy and wave energy definitely has strong promise.Here we present the various pros and cons of wave energy
July 6, 2011
Nuclear Power like other forms of Energy cannot be defined by a single cost as nuclear power plants differ in their technology and sources of fuel.No two power plants can have the same cost of electricity production similarly nuclear energy plants cannot have the same kilowatt hour cost.However nuclear energy is known for its very low costs of 2-3c/kilowatt hour which can only be currently be met by coal.But nuclear energy cost is based on older nuclear power plants which have already been depreciated.This cost is also controversial as the costs of nuclear waste storage is generally not included.USA and Japan which are the largest nuclear power producers have not constructed permanent nuclear waste storage sites despite accumulating thousands of tons of nuclear waste.Also these days extra safety measures are being taken due to the Fukushima disaster which means that the costs of nuclear energy is going up.
July 5, 2011
Nuclear Power Plants around the globe are being closed at a furious rate particularly in Europe.The Fukushima Disaster has caused a nuclear winter in the nuclear power plant industry.Even Nuclear Power Plant Equipment Leaders like Toshiba are changing their strategy to concentrate on Renewable Energy.Even new Nuclear Power Plants being built in India and China are facing massive opposition.New Nuclear Power Plants being built at Jaitapur and Tamil Nadu have met massive organized protests by local citizens throwing the future of nuclear power plants in jeopary.The Communist Government in China too is going slow on the biggest rollout of nuclear power plants in the world.High Cost Escalation and long project delays had already made building new Nuclear Power Plants in the Developed World almost impossible.Japan and Germany which are two of the largest nuclear countries have decided to shut down all nuclear power plants.Switzerland and Belgium too have decided to kill the nuclear power industry in their countries.In this light it becomes very important to examine the pros and cons of nuclear power plants.A cost benefit analysis of nuclear energy is crucial as new plants cost billions of dollars and can cause massive costs if things go wrong as was the case with Chernobyl and Three Mile Island Disasters in the 1980s.
July 4, 2011
India has become the third country in the world to start a National Green Tribunal (NGT) which is a judicial body exclusively meant to judge environmental cases.Note Environment has become the one of the most important issues in the country affecting the broader society.Alongwith Land Acquisition,environment has become the most frequent conflict flashpoint.There have been numerous case where large industries have been confronted by local people fighting for the environement.Recent cases like the Vedanta Bauxite smelter in Orissa,Thermal Power Plants in Andhra Pradesh,the Jaitapur Nuclear Power Plant in Maharashtra have seen huge controversy and protests.Note Vedanta Resources has found itself in the centre of controversy over mining bauxite in Niyamgiri Hills which are held sacred by the Dongria Kondh tribal group.With powerful political and bureaucratic patrons,Vedanta has managed to ride roughshod over Tribal Rights.
Having a National Green Tribunal (NGT) has become essential for the country so that development can proceed with peace between various stakeholders .Note normal judges and courts don't have the expertise to understand the massive complexities and intricacies involved in billion dollar industrial projects and their impact on the environment.The NGT will have each judge having an environmental expert to guide him/her on the ecological issues so that they can come to an informed judgment.
June 23, 2011
India has set a target of 20 GW of Nuclear Energy by 2020 from around 5 GW now and has already signed deals with major nuclear equpment suppliers like Areva,GE-Hitachi and Toshiba.However the Nuclear Disaster at Fukushima has changed things on the ground with protests growing by the day.Note only are the proposed nuclear reactors at Jaitapur facing massive protests,even the existing nuclear power plants in India are seeing locals raising their voices.Recently many prominent citizens of India signed a protest letter against the upcoming Jaitapur plants.Note the advantages and disadvantages of nuclear power has been debated on for a long time.The catastropic risk of a nuclear reactor meltdown is the biggest con of nuclear energy and has made it intolerable in a number of countries.After Japan has decided to kill nulcear power in the country,other progressive countries like Germany,Italy and Switzerland too are going to switch off nuclear reactors once the life of the existing plants are over.
May 30, 2011
German utilities have protested against the move as recently they were buoyed by the decision of the Merkel led government to extend the life of the nuclear reactors by more than 10 years.However the weight of public opinion has made the German government go into the damage control phase ( though too late in my opinion.German power companies too know that going against popular opposition will be quite fruitless.Note Germany faces problems as the replacement of the 7 shutdown nuclear reactors will be difficult to replace.Solar Power has been playing an important role but in winter this problem may become acute.According to some analysts,Germany will have to import power (nuclear as well) from other European countries.This will lead to increase in electricity prices.However its a great win for all forms of Green Energy as Germany has no alternative but to go with Green Energy as Germany does not have abundant reserves of Cheap Gas (like USA).Also Coal has its disadvantages which make it very difficult in an environmentally conscious country like Germany.
May 29, 2011
Switzerland has voted to not build any new nuclear reactors and not to extend the life of the existing nuclear plants once their expected life ends.The […]
May 11, 2011
Nuclear Energy has been dealt a very heavy blow with Japan deciding to stop building any new nuclear plants from now onwards.PM Kan in a dramatic move announced that Japan's plan to build 14 new nuclear reactors which would increase the share of nuclear power to 50% from 30% has been canceled.The new energy plan of Japan will have more focus on renewable energy and energy efficiency.Note Germany had already shut down 7 of its old nuclear plants with immediate effect following the Fukushima disaster.These nuclear reactors have almost no chance of being started back as hundreds of thousands of German protested against nuclear energy and the Green Party won its first government in Germany.Italy and Switzerland too have put their nuclear power plants under review while other countries too are slowing down the approval process for new nuclear reactors.Nuclear Power in its current form seems to be dying in the developed world with other developed countries too facing opposition to nuclear plants.Note the effects of Nuclear Radiation are quite deadly and widespread even in lower doses or sieverts as was brought to the fore during the Fukushima disaster.It can lead to billions of dollars in lost economic activity.Already 3 major disasters have unfolded in the last 40 years in USA,Russia and Japan despite the safety touted by the Nuclear Industry.
May 10, 2011
Mongolia has been chosen by the two countries to open a nuclear wastes storage site for their companies radioactive waste.GE-Hitachi and Toshiba-Westinghouse are two of the three largest nuclear equipment suppliers in the world and have big plans to export billions of dollars of reactors to emerging markets.These will generate huge levels of waste which would need disposing of.Mongolia is a convenient dumping ground as it a developing country with lax environmental laws.The country has big plans for uranium extraction and building on nuclear power plants as well.Another case of dumping of toxic waste on developing countries by developed countries.Note the citizens of Japan and USA have made life difficult for those wanting to construct permanent nuclear waste storage facilities.Having failed to dump dangerous waste near their citizens,the government of these countries plan to dump the radioactive waste on poor citizens of Mongolia.
May 2, 2011
Indian government seems not to have learned much from the Fukushima Nuclear Meltdown which has thrown millions of Japanese lives out of gear and caused massive disruption to the economy.The Jaitapur Nuclear Power Plant to be built by NPCIL using Areva's experimental nuclear reactors has got the federal government's environmental clearance.Note the protests against the plant had got a political color with local opposition parties getting involved.A number of villagers have already been killed by police firing and further protests are expected.Note India's activist environment minister Jairam Ramesh has proven to be selectively biased towards large industrial projects in Congress ruled states.After appearing to be hero stopping the Niyamgiri project from Vedanta,Ramesh has given the go ahead to politically favored projects.Not a surprise given the endemic corruption present in the ruling coalition which has given birth to a number of corruption scams and scandals.Like everything,even a project of this criticality has acquired a political cover with everyone sounding their party positions without worrying about the possibility of a nuclear meltdown in India.
April 13, 2011
Nuclear Recycling is the processing of the nuclear waste generated from the nuclear fuel cycle to extract useful elements like uranium and plutonium which can reused again in the Nuclear Fuel Cycle to generate electricity.About 97% of the used fuel can be recycled leaving only 3% as high-level waste. The recyclable portion is mostly uranium depleted to less than 1% U-235, with some plutonium, which is most valuable. Arising from a year's operation of a typical l000 MWe nuclear reactor, about 230 kilograms of plutonium (1% of the spent fuel) is separated in reprocessing. This can be used in fresh mixed oxide (MOX) fuel (but not weapons, due its composition). MOX fuel fabrication occurs in Europe, with some 25 years of operating experience. The main plant is in France, and started up in 1995.Major commercial reprocessing plants are operating in France and UK, with capacity of almost 5000 tonnes of used fuel per year, - equivalent to at least one third of the world's annual output. A total of some 90,000 tonnes of spent fuel has been reprocessed at these over 40 years.
April 13, 2011
Nuclear Waste is one of the biggest disadvantages of Nuclear Energy generation apart from the dangers of nuclear reactor accidents,weapons proliferation etc.Governments around the world have mismanaged Nuclear Waste Management leaving the solution to another day.This procrastination has led to thousands of tons of nuclear waste being stored in temporary dry cask and wet pools.This High Level Nuclear Waste poses a big danger to human health from nuclear waste effects.Nuclear Energy proponents say that Nuclear Energy is quite safe with numerous safeguards but Nuclear Waste Accidents happen with alarming regularity around the world leading to a number of Radiation Deaths.Nuclear Waste Accidents and Deaths are even reported in countries which don't have Nuclear Power as Nuclear Waste is dumped in developing countries which have little environmental safeguards.Here is a list of some of the major nuclear waste accidents that have happened.
April 13, 2011
Nuclear Waste is generally a variety of solids,liquids and gases which are produced during the generation of nuclear energy during fission,mining of uranium,nuclear research and weapons production. They are normally classified as low-level, medium-level or high-level wastes, according to the amount and types of radioactivity in them.Nuclear Waste is radioactive and that is the primary cause of the negative effects on human health and bodies.Note Radiation iin small amounts do not cause any lasting damage as humans are exposed to natural radiation from radioactive deposits occurring naturally beneath the earth.However large doses or prolonged exposure to moderate radiation can lead to permanent problems and even lead to death.Note Nuclear Storage Policies are a complete mess around the world with no permanent geological sites being approved.
April 13, 2011
Nuclear Waste is one of the most difficult waste products to transport and store because of its dangerous radioactive effects.Given the long life of some of the transuranic elements Nuclear Waste has to be stored in a safe manner for thousands of years which is a tough given that the chances of leakage become enormous in such a long time scale.Storing of Nuclear Waste has to be performed in a extremely complicated manner which is also enormously costly.Also there are problems of NIMBY with Nuclear Waste Storage as nearby residents don't want such toxic waste stored anywhere close especially as it does not bring any economic or social benefits.Not there is no permanent storage site despite many decades of planning and billions of dollars being spent.While Japan and Europe reprocess the fuel in the hope that they will be used again that remains a dream with thousands of tons of HLW piling up.USA does not reprocess and also has more than 60,000 tons of nuclear waste waiting for a final home.Till then most of the spent nuclear fuel is being stored in spent fuel pools and dry casks making them vulnerable just like another Fukushima
April 13, 2011
Nuclear Waste has come under sharp focus after the Fukushima Nuclear Disaster in which Spend Fuel Rods were one of the biggest causes of the radioactive emission which has led to the Japanese Accident being labelled as INES Level 7 which is equal to the Chernobyl Accident.One of the biggest disadvantages associated with Nuclear Energy is the problem of Nuclear Waste which is generated after the Nuclear Fuel (Uranium) is processed.The transuranic elements which are produced have half lives of hundreds of years making it a difficult proposition to transport,handle and dispose them.A Number of Nuclear Plants have not factored in the high costs of Nuclear Waste Disposal making it another big issue in the problem of Nuclear Waste
Nuclear Waste is the biggest con of Nuclear Electricity after the potential risks of a plant meltdown.Note Nuclear Waste is an ongoing problem and it has not been resolved in the USA where a permanent facility at Yucca mountains has run into a massive controversy.The long life of High Level Nuclear Waste,its pernicious effects on human health and difficulty in handling and storing make it difficult problem.However Nuclear Electricity forms almost 15% of the global electricity production and the tons of Nuclear Waste have to be dealt with however problematic and dangerous it might be
April 12, 2011
A study of soil samples conducted by a team of experts from Kyoto University and Hiroshima University has revealed that as much as 400 times the normal levels of radiation could remain in communities beyond a 30-kilometer radius from the Fukushima No. 1 nuclear power plant.The study found cesium-137 at levels between about 590,000 and 2.19 million becquerels per cubic meter.After the Chernobyl nuclear accident in the former Soviet Union in 1986, residents who lived in areas where cesium-137 levels exceeded 555,000 becquerels were forced to move elsewhere.
April 10, 2011
Coal is a dominant source of energy for humans accounting for almost for a quarter percentage of human energy consumption and majority of the global electricity production.However Coal is considered as the Dirtiest form of Energy as it leads to Air Pollution,Mercury Poisoning,Global Warming.Renewable Energy is considered as the solution with its non-polluting characteristics,energy security,freedom from peak everything.However Renewable Energy is way more expensive than Coal Energy making it difficult for Renewable Energy to take over Coal.However growing Global Warming Costs will weigh in the future making it inevitable that Green Energy catches up.Here is a list of the pros and cons of Green vs Black where Green represents Renewable Energy and Black represents Coal.Note Green Energy will ultimately win in the end,its only a question of how soon because if the realization comes too late then Climate Change might go far enough to cause catastrophic damage.
April 8, 2011
TEPCO the owner and operator of the Damaged Fukushima Nuclear Plant reproted that its Onagawa Nuclear Power Plant in the Miyage Prefeture also leaked very small amounts of radioactive water.About 3.8 kgs of radiated water from one of the spent fuel rod pools spilled as three out of four external power supply units in Onagawa shut down leaving only one power source to cool the spent fuel. at the Nuclear Plant failed after the 7.4 Richter Scale Earthquake off the seas near Fukushima.The cooling systems have been restored and there is no more damage at the Nuclear Plant like Fukushima.Note the workers at the Damaged Dai-ichi were evacuated due to the Tsunami Warning issued in the aftermath of the Earthquake.These workers have again returned in their radiation fighting work at the Plant.USA said that it seems that the worst scenario of serious contamination from the Fukushima Nuclear Accident has probably passed.
April 7, 2011
Seoul witnessed Radioactive Rain as winds blew from neighboring Japan which has witnessed the second biggest nuclear energy accident after Chernobyl.Though the the Rain contains cesium and iodine particles they are well within the safety limits according to the South Korean Nuclear Safety Regulator.South Korea has already protested against the lack of information about the Nuclear Emissions and the Deliberate Dumping of Toxic Seawater by TEPCO.However many schoolchildren stayed at home as worried parents were concerned about the impact of the radiation.China the other major close nation in proximity to Japan has also detected low levels of iodine in spinach in 3 provinces.China had earlier reported trace levels of radiation in Guangdong and Shanghai.Note Iodine has a very low half-life so that problem should not persist for long.However cesium is another matter as it can lodge inside human body and keep emitting for a long time internally.
April 6, 2011
The ongoing problems at the stricken Japanese Nuclear Plant at Fukushima may see new problems given the prolonged cooling by water.Note it has already manifested itself as 11,500 tons of radiated water was dumped into the Pacific leading to protests from South Korea and dangerously contaminated fish.Further problems may arise as NY Times reports from a nuclear assessment report on each of the 6 reactors at the Dai-ichi plant.The tons of seawater being used to cool the temperature could result in a dangerous structural damage to the containment vessels of the reactors.Note this unconventional cooling of the Nuclear Plant may give rise to unthought of problems and complications.The spent fuel rods where hydrogen is being generated may react violently with oxygen in the air leading to violent explosion as was seen in Reactor 2 in the early part of the crisis.Salt has also been accumulating in the reactor from the seawater which may prevent circulation of newly added water.
April 5, 2011
The total installed nuclear generating capacity in the world is around 375 GW (WNA) with another 170 GW in planning g state and another 170 GW being proposed. The largest nuclear power is Europe with an installed capacity of 131 GW, ie. 34% of the total world capacity. The second largest country is the USA with around 27% of the world nuclear capacity. The installed capacity of USA is 101 GW. These figures are projected to accumulate to 144 GW & 136 GW respectively by the end of year 2035, according to the EIA. Japan & Russia are the 3rd & 4th in the list with an installed capacity of 49 GW & 23GW respectively.
April 5, 2011
Nuclear Power has come under assualt in the aftermath of the Fukushima Nuclear Accident with Nuclear becoming a four letter word.However Nuclear Energy cannot be ignored becauses its benefits are unique in some applications and cannot be substituted by any other means.Nuclear Power also cannot be replaced in the short term from its most widely used application of generating Electricity.Note Nuclear Power accounts for almost 15% of the Global Electricity and in some countries is the major source of energy.For example France which has 80% of its power coming from Nuclear Fission,its impossible to think of shutting down nuclear plants like Germany which gets around 20%.Note even for USA which has the largest installed base of nuclear reactors shutting down almost 200 GW of Nuclear Capacity is quite unthinkable.Besides Nuclear Energy has massive uses in medical and other applications.This cannot be substituted by other means at all.For example its possible to replace Nuclear Electricity by other means like Solar,Wind even Coal and Gas though its costs will be astounding.But you can't replace Nuclear Energy in Medical Applications like Scanning and X-Rays.Here is a list of the main uses of Nuclear Energy.
April 5, 2011
The massive dumping of radiation seawater by TEPCO into the Pacific Ocean has triggered outrage amongst various stakeholder groups.Fishermen are angry at is will massively affect the marine life who are bound to get poisoned by the 11,500 tons of radioactive water which is 100 times over the legal limit.A fishing industry group in Fukushima prefecture has asked Tepco to stop releasing toxic water into the sea near the power plant as Radioactive iodine and cesium were found in fish caught off the coast of Ibaraki, north of Tokyo.The Fishermen are already facing a bad time are bound to get hit even worse from this.Green Groups are protesting this deliberate ejection and say that it might be unethical to dump the water if not illegal under international laws.Green Groups are protesting the fact that more efforts could not have been made to store the water in ship tankers or overland facilities instead of taking the easy way out and dumping it in the Pacific.Note the radioactivity spewed from the Japanese Nuclear Plants is affecting nations globally.South Korea which lies very close to Japan has expressed concerns over the toxic water being dumped into the ocean.
April 4, 2011
Marine Life is expected to be badly affected from the radioactive water.Note IAEA has already found high levels of radiation well beyond the evacuation zone and Greenpeace too has warned about high levels of radioactivtiy.TEPCO has its reputation badly tarnished as it has failed to disclose the levels of radiation and different radioactive elements like Cesium.Note the Japanese Farmers are already facing years of losses and the Fishermen too seems destined to join them as the thousands of tons of water will probably lead to Fishes becoming toxic in that region.