Renewable Energy
All Articles Dealing with Wind,Solar,Geothermal,Biomass,Tidal,Wave and other sources of Renewable Energy
March 31, 2011
Obama's outlined a New Energy Policy as he periodically does without any far reaching national goals on to reduce America's dependence on billions of barrels of imported oil which cause global warming,finance terrorist and prop up brutal regimes in the Middle East.However his periodic bursts of rhetoric on the US Energy Policy is nothing but a lot of empty gas without any specifics.Earlier he used to stress on nuclear energy which has been thrown out of the window with the Fukushima nuclear disaster.His plans of supporting the nuclear energy industry with $36 billion in DOE loans seems a bad if not a gruesome joke.Similarly last year his plans of allowing offshore drilling for Oil also fell flat after the massive BP Oil Spill ecological disaster.
March 31, 2011
The Reactor 1 of the failed Fukushima Daichi plant might be recritical as Radioactive Chlorine has been detected suggesting chain reactions continued after the reactor shut down.This is quite alarming and has made Japan thing about pouring concrete into its crippled Fukushima atomic plant IEAE warned that a potential uncontrolled chain reaction could cause further radiation leaks.The risk to workers might be greater than previously thought because melted fuel in the No. 1 reactor building may be causing isolated, uncontrolled nuclear chain reactions.Dumping concrete on the plant would serve a second purpose: it would trap contaminated water, said Tony Roulstone, an atomic engineer who directs the University of Cambridge’s masters program in nuclear energy.
March 30, 2011
Solar and Wind Energy are the two most widely used forms of Renewable Energy amongst others like Geothermal,Tidal,Biomass etc.While Hydro and Nuclear Energy are also considered by some to be Alternative forms of Energy,most governments do not count these two in their renewable targets.Wind Energy has been the dominant amongst the 2 in the last 2 decades as falling prices of Wind Power has made it more widely used.However the rapidly declining costs of Solar Energy has made it the faster growing of the two with 50% annual growth being seen in the last decade.Solar Energy also has a much larger potential than any other form of Energy.However its higher costs have inhibited its growth till now,however the entry of low cost Asian producers and fast technology innovation has already brought solar power on parity with fossil fuels in some places like Italy,Turkey,Hawai etc.
March 30, 2011
The radioactive fallout from the Fukushima Nuclear Disaster is not only keeping Japan on high alert but also its neighbours.China has said that it has detected trace radiation levels from the spreading radiation in its provincial regions bordering Japan.Note most of the Chinese economic centres are situation near the eastern coast near Japan.Its 2 main cities of Guangdong and Shanghai have also detected trace levels of radioactive elements like iodine and caesium.Note China has turned back vessels and people from Japan in the last week because of high radiation levels.
March 29, 2011
The Fukushima Nuclear Disaster shows more dangerous radiation signs each day.While Plutonium Poisoning was found in the soil near the Nuclear Reactors,a more alarming development is the high levels of Caesium being found in areas far away from the plant.Note Caesium is a heavy element which is found in areas of radioactivity like Iodine 130.Caesium has a much bigger half life than iodine and can cause radiation poisoning for a much longer period.
March 29, 2011
Hydroelectricity power plants are the biggest power stations in the world dwarfing the biggest nuclear and coal power projects.The world's biggest power plant is the Three Gorge Dam in China which at 22.5 GW is more than 50% larger than the 2nd biggest power station in the world.Most of the world's largest hydroelectricity plants in the world are situation in China and South America.North America also has some of the larger hydro power plants.China is the by far the world leader in hydro power plant capacity with around 200 GW which it aims to double to around 400 GW by 2020.Other major hydroelectricity countries are Canada,USA,Brazil and India.Note Hydroelectricity is responsible for producing around 20% of the world's electricity.Here are some of the major world hydroelectricity power plants .
March 29, 2011
Hydroelectric Dams have disadvantages which are quite different from those of other forms of renewable energy like solar, wind, geothermal or nuclear energy. Hydro Power in […]
March 29, 2011
Hydroelectricity is the production of electrical power through the use of the gravitational force of falling or flowing water.Hydroelectricity capacity is around 800 GW accounting for almost 20% of the global electricity capcity.China and Canada have the largest hydro capacities in the world.If you consider Hydropower as renewable energy,then Hydro is the most widely used renewable energy in the world.In fact Hydroelectricity is the 3rd biggest source of electricity in the world after coal and oil/gas.Hydroelectricity power plants can have massive capacities with the Three Gorges Dam in China being the world's largest at 22.5 GW.The Itiapu and Guri Dams in South America are the 2nd and 3rd largest with 14 GW and 10 GW capacities.China is set to double its massive hydroelectric capacity to almost 400 GW by 2020 from 20 GW currently.The advantages of Hydroelectricity are many
March 29, 2011
The world's total electricity generating capacity is around 4500 GW (2007 figures) which is expected to increase by 1.7% each year to rise to 7000 GW by 2035 according to EIA.USA is still the world's largest electricity producing country with more than 20% of the world's power capacity with around 1 Terawatts of Electricity Capacity.China has been rapidly adding capacity in the last decade and the second biggest electricity producing country with more than 700 GW more than 70% of which is from coal fired power plants.Japan,Russia and India are No.3,4 and 5 on the list with 280 Gw,220 GW and 159GW respectively.Europe is the third largest region in terms of electricity capacity with more than 800 GW.India is rapidly increasing capacity and is projected to be the No.3 in the list by 2020 as it looks to more almost treble its current electricity capacity of around 150 GW (in 2007).
March 29, 2011
TEPCO the beleaguered Japanese utility said that plutonium was found around the damaged nuclear reactor.Plutonium has been detected in soil at five locations at the Fukushima No. 1 nuclear power plant, Tokyo Electric Power Co. said in a statement on MondayThe company could not confirm which of the reactors in the plant was leaking plutonium which is a very dangerous radioactive element.The No. 3 reactor is the only one at the six-reactor facility to use plutonium in its fuel mix.The United Nations' International Atomic Energy Agency said the find was expected due to known fuel degradation, however Japan's Nuclear and Industrial Safety Agency is highly worried about the radioactivity of the plutonium samples detected.
March 28, 2011
Solar Power has been the fastest growing energy source in the last decade showing a compounded annual growth of over 50%.In 2010 alone,solar energy demand grew by almost 150% beating the most optimistic forecasts as costs kept on declining for this renewable energy source.While Solar Power continues to be one of the most expensive forms of energy,it is also the energy source where the costs are declining rapidly.However detractors of this alternative energy source keep pointing to its drawbacks.Note the Disadvantages of Solar Power are far overpowered by the Pros of Solar Energy.However the drawbacks of Solar Power do exist.Here are the Disadvantages of Solar Power .
March 28, 2011
Dangerous levels of radiation has been detected in the water around the reactors as the Japanese government says that a partial meltdown has occured.While there is no confirmation about cracks in the pressure and containment vessels around the reactors,the radiation in the water inside Unit 2 has tested at radiation levels some 100,000 times normal amounts.Workers also discovered radioactive water in the deep trenches outside three units, with the airborne radiation levels outside Unit 2 exceeding 1,000 millisieverts per hour _ more than four times the amount that the government considers safe for workers.TEPCO officials said Sunday that radiation in leaking water in Unit 2 was 10 million times above normal.TEPCO has been giving confusing figures for radiation making it all the more difficult in understanding the gravity of the nuclear crisis.Note this disaster is only second to Chernobyl in its scale of radiation destruction.Tokyo and other parts have reported intermittently about high radiation in water and air.A ship from Mitsui was recently turned back from a Chinese port because of high levels of radiation.
March 28, 2011
The Green Party in Germany has continued its massive upsurge in popularity in Germany winning a huge slice of votes in key German states which have gone to polls recently.Green Party in Germany which is founded on the principles of social justice, reliance on grassroots democracy nonviolence, and an emphasis on environmentalism has remained a fringe player.However the recent backlash against the nuclear power plant extension by Merkel,the planning on high speed rail in Stuttgart and the frustration with the foreign and Euro policies of the ruling CDU has led to huge gains.Note Green Parties are found in most European countries though they remain non-existent in major Anglo-Saxon countries.However the recent Japanese nuclear disaster may give a fresh impetus as global warming effects continue to increase and nuclear energy comes under attack.Mass protests against nuclear power continue to be held in different cities in Germany
March 19, 2011
India's ambitious nuclear energy plan to add around 2G of Nuclear Plant Capacity is running into more and more hurdles each day.Nuclear Energy in India got a boost when India and USA signed a 123 agreeement which removed India's pariah position in the International Nuclear Community allowing transfer of nuclear equipment and material.However the Japanese Nuclear Disaster has thrown a spanner into the works.The Jaitapur Nuclear Power Plant in Maharashtra was already seeing huge protests from local villages and political parties.The news of the Nuclear Radiation from the Fukushima plant has added fuel to the Nuclear Fire it seems.Note only have the Jaitapur protests become more stringent but another planned plant in Kovvadu village in the south eastern state of Andhra Pradesh has run into trouble.Villagers from all 150 villages took out a rally demanding withdrawal of the proposed nuclear power plant in the wake of ongoing nuclear crisis in Japan.I had earlier written that the Biggest Fallout Effect of the Japanese Nuclear Accident would be the Not in My Backyard (NIMBY) opposition of all existing and proposed Nuclear Energy Reactors globally and this is exactly what is happening.
March 17, 2011
The Wikileaks Cable says that an Indian Official Nachiketa Kapur showed an Embassy Staffer Two Chests filled with millions of Ruppees in Cash meant for bribing legislators.This corruption scam is the latest in a series over the last 6 months or so.Already India's previous Telecom Minister is cooling his heels in Jail and crucial leaders of the ruling coalition have been questioned in the 2G Scam.Most of Indian corporate chieftains have also been implicated in the Telecom Scam with mudslinging in full flow.India's Foreign Policy is being made by such crass and corrupt leaders is a shocking revelation though nothing new.Earlier Jharkand state had seen its legislators convicted of accepting bags full of cash during the earlier Congress regime.So this means that bribing and making Indian Policies is not a new thing.India's Opposition Parties are making a huge hue and cry and demanding the PM's resignation.
March 16, 2011
Japan's Nuclear Crisis has taken a turn for the worse as US Energy Sectratary CHU saying that a Partial Meltdown has occured.Even IAEA has said that the situation has turned very serious with 4 of the reactors suffering from core damage and 3 of the reactors have their spent fuel rods exposed to the atmosphere as cooling systems have failed.While Japan has almost imposed a news blackout,the damaging news comes from the US administration which has said that the crisis exceeds that of the Three Mile Island already.Japan has doubled the number of workers as the crisis continues to escalate.Authorities battling the nuclear disaster at the Fukushima Daiichi power plant have doubled the number of workers on the site to 100.Helicopters have failed to cool the plant using water due to radioactive plumes and now the desperate Japanese are planning to use water cannons to spray the pools.
March 16, 2011
Geothermal Energy is regarded as a poor cousin to its more glamorous cousins Wind and Solar.Geothermal Energy Capacity has been installed and the growth rate is a pathetic 3-4% compared to the over 50% CAGR seen for solar energy and around 30% for Wind Energy.However Geothermal Energy possesses one attribute that the others do not.Its 24 hour generation capability is a massive plus compared to the intermittent nature of Wind and Solar Energy.However long project development time and large capital investments have deterred fast growth in geothermal energy in the world.However some countries like Iceland,Indonesia,Philippines and USA have a strong geothermal energy industry.Note Geothermal Energy has massive use as a heating source for homes and offices,however this article mainly talks from the view of Electricity Generation.
March 16, 2011
The situation at the Fukushima Dai-Ichi power plant continued to be desperate as new fires and explosions rocked the nuclear plant.The utility which owns and operates the Nuclear Reactors Tepco said that the containment structure may have been damaged as smoke was seen from top of one of the reactors.70% of the Fuel Rods at Nuclear Reactor 1 and 33% at Reactor 2 have been exposed.This means that these fuel rods are not being cooled and may be melting leading to increased radiation poisoning hazards.New Fire broke out on the morning of 16th March at Reactor No.4 and containment chamber at Reactor 2 is damaged from Reactor 2.The problems at the Nuclear Plant seems to be increasing with no solution in sight.What is worse is that the 2 reactors No.5 and 6 which have been dormant all this time have all seen their temperature .increasing.Temperatures in the spent fuel rod cooling pools of the shuttered No. 5 and No. 6 reactors were rising as of 7 a.m. today to about 60 degrees Celsius (140 degrees Fahrenheit)
March 15, 2011
The backlash against the new and existing Nuclear Power Plants has started in different places around the world despite defiant expressions by Nuclear Plant Owners and Operators.While China and Italian utility Enel have said that they will go ahead with their billion dollar investment plans,Switzerland and Germany have put nuclear plant extensions on hold.Note Germany had extended the life of Nuclear Plants in the country by 10 years after extensive lobbying by the Nuclear Industry.This had led to huge protests from the Opposition Greens but the government had gone ahead in order to reduce Power Costs.However Merkel has been forced to eat humble pie and has said that a 3 month review will be done to check the safety of the Nuclear Reactors.Switzerland has also come out and put the plans for new Nuclear Reactors on Freeze.
March 15, 2011
The explosion and fire at the Japanese Nuclear Plant in NorthEast of Japan has led to the release of a small nuclear plume above the reactors.The southern winds have caused this radiation to spread in many of the prefectures in Japan and cesium and other radioactivity has been detected in the capital of Tokyo.Note Radiation does not affect the human body in small doses as radiation is present in our everyday lives at well.However the increase in radiation concentration can lead to severe health hazards and in extreme cases even death.It is almost impossible to escape radiation effects unless one has special nuclear,biological warfare protective equipment.Note Radiation in Japan is still at quite mild levels and seems unlikely to cause any major health hazard.Radiation will need to increase about 1000 times from the current level for the situation to become serious as of now
March 15, 2011
This Nuclear Energy Disaster in the Age of Twitter and Facebook will vehemently increase the opposition to the setting up of big Nuclear Plants.The Radiation Leak and subsequent health hazards will make it impossible for a Nuclear Reactor to be located except in very remote areas like the Sahara Desert.NIMBY protests are going to almost kill the Nuclear Industry in the next decade at least in democracies.The Nuclear Industry will take a long time in establishing its trust amongst the citizens.Without Nuclear Energy,the other major forms of Renewable Energy ,Solar and Wind Energy have to gain.Already Switzerland and Germany are deferring the planning and extension of Nuclear Energy.Other countries are putting safety reviews.Note the costs of environment regulation and nuclear waste disposal are already quite high.This will make new nuclear plants uneconomical as they are already facing huge cost overruns . Ask Areva in Finland and Constellation in the US.
March 15, 2011
Japan's Nuclear Disaster took a turn for the worse as another Fire and Blast in the Nuclear Reactor led to Severe Radiation Leak.Japan's PM warned people within 20 miles of the Plant to evacuate and within 30 miles to remain indoors.There is a high probability of the Nuclear Containment Vessel may get Damaged as Temperatures kept rising with the failure of the Cooling Systems.Radiation Levels at the reactor reached 965.5 micro sievert per hour, later jumping to 8,217 micro sievert at 8:31 p.m. The level would be more than eight times the 1,000 micro sievert limit to which people can be exposed in one year without effect, according to the report.The Wind was blowing south which implies that one of the highest population density cities in the world - Tokyo might feel the affects of Radiation.Prime Minister Naoto Kan urged calm in a national address Tuesday.
March 14, 2011
Biomass Energy accounted for most of Human Energy Consumption before the 20th century before fossil fuels took over.Biomass Energy still accounts for 1/3rd of Energy requirements in a lot of countries and is the primary energy source for heating and cooking in rural communities.Biomass Electricity accounts for around 1% of the world's electricity capacity of around 5000 GW.With advancement in Biomass Technology a number of Large Scale Biomass Energy Plants are being built in Europe.Even in developing countries like India,the government is strongly supportive of biomass energy and is giving various subsidies to support this alternative energy.Biomass Energy can play an essential role in off grid markets where there is a decent availability of feedstock.Each year millions of tons of crop residue and animal waste is converted into carbon emissions without being used up.Biomass Energy can convert this feedstock into useful electricity without adding carbon to the atmosphere.Waste to Energy is the most unexploited forms of energy and there exists enormous potential here also.Here is a list of the Biomass Energy and Wood Pellet Companies in the World.Note most of the companies are small in nature compared to the wind and solar companies.Most of the biomass electricity companies still have their biomass plants in the drawing or construction stage.Wood Pellet Companies are mostly private companies and not traded on the Stock Exchange.
March 14, 2011
India's Biomass Electricity Capacity at 2 GW (including cogeneration) is around 4% of the world's total Biomass Power Capacity of around 50 GW.US is the leader in Biomass Capacity with around 20% of the world's biomass potential.India has set ambitious plans for expanding the biomass power capacity in the next 10 years.India's Ministry of Renewable Energy has set a very high target of multiplying the power capacity by 10 times in the next 10 years.India's Total Biomass Potential with existing Technology is around 25 GW of which around 8% has been realized till date.India produce s 500 million tonnes of biomass per year, 120-150 million tonnes is surplus