Renewable Energy
All Articles Dealing with Wind,Solar,Geothermal,Biomass,Tidal,Wave and other sources of Renewable Energy
April 11, 2011
South Africa the most economically developed country in the African continent is also is one of the most dependent countries on Coal Energy.Almost 90% of the country's requirements of Electrcity comes from GHG emitting dirty Thermal Power Plants.Sasol which is a leading energy provider in South Africa is the global leader in Coal to Liquid and Coal to Gas Technologies.In fact most of the Fuel Production in South Africa comes from Sasol plants built long time ago to take advantage of the country's mineral rices and avoid the oil embargo placed on the country during apartheid.The country's electricity situation is massively mismanaged with Eskom a monopoly producer and supplier of electricity hardly adding any capacity.This is due to low prices of electricity which now is being added suddenly at 25% each year.This comes after huge shortages slowing down the economy. South Africa has also come up with new Energy Plan which will largely replace Coal Energy by Nuclear and Renewable Sources of Energy.Note South Africa had been in talks to establish a massive solar plants with funding from China which would have used Suntech Solar Panels.There were also rumors of Yingli suppling solar equipment to the country.
April 11, 2011
A number of Agricultural Companies and Green Utilities are focusing on setting up biomass plants in different places in India.Note Biomass Energy accounts for almost 20-30% of the Energy Requirements of the country and is the main source of energy for most of the rural communities for cooking and heating.Biomass Energy is best suited where Crop and Animal Residue are cheaply available.Most of India's Biomass Power Plants have been built by companies involved in agri industries particularly sugar.Now Rice Companies are finding Biomass Energy perfect for their needs as they generate huge amounts of waste Rice Husk which can be used to generate electricity for their inhouse needs as well as for sale to the power grid.Note on top of this,Rice Biomass Electricity is also eligible for Subsidies from the State Governments.Haryana is seeing a surge in Rice based Electricity Plants with 16 MW installed already.Note Haryana is one of the top agri states in India alongwith Punjab and provides a lot of potential.Note a number of Rice Companies such as Lakshmi Energy and Foods have made Biomass Electricity a key part of their growth strategies even changing their names.Here are a couple of Rice Companies with aggressive Biomass Electricity Plans.
April 10, 2011
Biomass Energy is the oldest source of Energy known to mankind and till the 19th century was the primary energy source.Even now Biomass Energy is used of Heating and Cooking by a large percentage of the Human Population.Biomass Energy with improving technology is being now used to construct large power plants.Growing Concerns over Climate Change and soaring Coal Prices are making some Power Plants convert from Coal to Biomass as a Fuel Source.Biomass Energy has many advantages such as being Carbon Neutral,using Animal and Crop Wastes in a useful manner,being poor friendly etc.However Biomass Energy like other Renewable Energy forms of Geothermal Energy faces problems of resources.However Biomass Energy suffers from some unique drawbacks like the problem of regular feedstock which becomes tough to acquire in times of drought etc.Biomass Energy also if not used appropriately can result in terrible air pollution as is the case with a majority of the Biomass Energy being used in the backward areas of the world today.Here is a list of the Cons of Biomass.
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 6, 2011
Phillipines is heavily dependent on imported fossil fuels for its energy requirements as it lacks sufficient domestic resources of coal or oil.The country which already has […]
April 6, 2011
Islands mostly are depended on diesel generators for their electricity requirements which is considerably costlier than the normal coal,hydro,gas and nuclear forms of energy.Unless you are Saudi Arabia and can get oil at $4/barrel,the price of electricity from oil based energy sources is one of the costliest.Hawaii in USA pays around 30c/KwH for electricity because of the high cost of transporting and buying fossil fuels for its power plants.These islands have a huge incentive in moving towards renewable energy because it not only reduces costs,carbon emissions but also helps in energy security.Hawaii has installed a large number of wind farms,is building a big energy storage facility and promoting other alternative energy forms like solar as well.Hawaii Feed in Tariff has been implemented despite opposition by the utilities.
April 6, 2011
USA has been sorely lacking in the fight against Climate Change and Global Warming.Greenhouse Gas Emissions by the US has increased tremendously from 1990 the benchmark year when countries under Kyoto Protocol pledged to reduced their Carbon Emissions.However US has refused to do anything and has not even signed the Kyoto Protocol.The hopelessly rudderless leadership in the US has failed to pass any Clean Energy Laws like Cap and Trade ( not my favorite),Federal RPS etc.Some states have been showing proactive leadership like California despite massive opposition by the powerful oil and gas lobby (Valero,Koch Brothers).Their efforts are being stymied by the very rich who don't care about global warming as they can easily use their money to mitigate any affect on them and the powerful fossil fuel lobby with their thinktank puppets.
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.
April 4, 2011
Biomass Energy is highly under-appreciated as a renewable source of energy despite being the most important source of energy during most of human history..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 advancements in gasifier technology and energy conversion,biomass power plants have become quite popular.Biomass Power Plants are increasing in scale from around 20-50 MW to more than 100 MW as the technology has advanced quite a bit.The only problem for these large plants is securing feedstock for these power plants and storing them.Biomass energy is used mainly for cooking and heating in rural areas.Now it is increasingly being used to generate power as the technology for biomass energy has advanced.Biomass Energy like other Forms of Energy has got its unique Benefits and Drawbacks which are listed below
April 4, 2011
Hydro Power is one of the largest sources of energy accounting for roughly 20% of the worldwide demand of electricity and for well resourced countries it accounts for majority of the energy.For Paraguay 100% of the electricity comes from hydro power and lot of it is exported as well.Compared to other sources of Energy, Hydroelectric Power is one of the cheapest,non Carbon Emitting,non Polluting,Mature Energy Source.Hydro Power plants have been developed to almost full potential in developed countries because of their superior characteristics and many more are being constructed by developing countries like China and India.However Hydro Power like all other thins in life suffers from disadvantages as well.The failure of a Hydro Dam can result in massive losses of human life and cause widespread devastation.Large Dams have always been controversial leading to displacement of people and ecology.They have also been cited as the reason for earthquakes due to large land changes.Here is a list of the advantages and disadvantages of Hydro Power
April 4, 2011
Climate Change and Global Warming have been put in the Cold Storage by most world governments as there is little will to fight one of the most pressing challenges facing mankind.With the successive Copenhagen and Cancun Climate Change Meets coming up as croppers,the Poor are left to fight the drastic affects of Climate Change in the face of Severe Weather like Droughts,Floods,Increase Sea Levels.Australia stupidly cut the funding for various Green Programs after facing one of the worst floods in the last century.It did not occur to the short term focused politicians that the Floods may have their root cause in Global Warming.Instead of increasing resources to fight Climate Change,they cut the Funding to help in the Flood Rehabilitation Programs
April 4, 2011
Terra Firma,the multi billion pound Private Equity firm has continued its Renewable Energy Asset Buying Spree spending a monstrous 641 millino Euros to buy Rete Rinnovabile a solar plant owner and operator in Italy.The acquired company is a susdiary of Italian market grid operator Terna and owns around 150 MW solar capacity in Italy which witnessed a massive solar boom in 2010.The acquisition values 1 MW at 4.5 Euros which would be considered not an expensive price given the large returns available for Italian solar power assets which gets a generous government mandated feed in tariff.The solar power plants are well located near distribution end points which is not a surprise since the company was a subsidiary of the grid power operator.
April 3, 2011
A crack in a concrete pit near the Reactor 2 of the Fukushima Plant has been found to be the source of leakage of highly radioactive seawater which was said to reach around 4585 times the legal limit.TEPCO had found the crack in a pit near the Reactor 2 which was leaking this dangerous seawater which was being used to cool the damaged nuclear reactors.An attempt to fill the crack in the pit by pouring concrete failed as the water made the sealing process through concrete impossible.Now a new polymer will be tried to seal the crack though it beats me why it did not occur to the engineers there that the water will make the process of pouring concrete fail.After almost 4 weeks since the nuclear crisis began in Japan operators of the plant are no closer to regaining control of damaged reactors, as fuel rods remain overheated and high levels of radiation are flowing into the sea.
April 2, 2011
Nuclear Energy is currently forcing a major rethink amongst the world governments as the Japanese Nuclear Accident sharply brings into focus the massive radioactive and poisoning risks from accidental damage to a nuclear reactors.Note this is not the first such incident nor is it going to be the last.The advantages of Nuclear Energy is being sharply reexamined by the policymakers vs the huge risks of a nuclear plant meltdown.Most countries have started reviewing their nuclear plants for safety with a number shutting down old nuclear reactors.The drawing plans of new nuclear plants is also on hold as safety regulations are strengthened.Nuclear Energy accounts for around 15% of the world's production of electricity and for some countries like France there is no alternative in the short term with 80% of the electricity coming from nuclear reactors.China has a huge target for nuclear energy of 80 GW by 2020 but that too is coming under attack with a NDRC official talking about lowering it by substituting it with other renewable energy sources like solar energy.Here are the Nuclear Energy Advantages vs Disadvantages.
April 2, 2011
The strict environmental regulations of EPA is leading to converion of a Virgina Coal Plant to a Biomass Fired one.Note the US Congress and Senate have failed to move ahead on climate legislation remaining hopelessly deadlocked on any climate deal.Despite numerous draft laws,no common law has been passed as Republicans fail completely in understanding global warming remaining in the pockets of the powerful oil and gas lobby.EPA remains the only government body which is doing something to reduce pollution and at the same time fight for climate change.The strict new rules against emission of harmful gases like sulfur dioxide,nitrous oxide,mercury has forced a Virginia Coal Plant to convert from thermal to biomass.
March 31, 2011
Nuclear Energy is facing a global backlash after the Fukushima incident in Japan as countries race to review their existing nuclear reactors.Nuclear Power had been enjoying a Renaissance in the 21st century as the Chernobyl and Three Mile Radioactive incidents faded from public memory.China is the principal driver of growth constructing reactors at a rapid clip to meet its growing needs with thermal power fast reaching a saturation point.Other growing developing countries like India,Vietnam are also planning to heavily invest in nuclear plants.However all those plans may change as the Japanese earthquake shakes up the nuclear energy industry more than the landmass in Japan itself.Note despite the catastrophic tails risks of nuclear power,it is not going to go away soon due to the large installed base and no fast substitutes available.Note more than 430 nuclear reactors are currently operational globally today and lots more on the drawing board.Note Nuclear Power accounts for around 18% of US electricity capacity and 30% plus for Europe,Japan and Korea.France is the leader with 80% of the electricity generated coming from nuclear fission.Here is a list of the Pros of Nuclear Energy.
March 31, 2011
Nuclear Energy is one of the most important sources of Energy for Humans accounting for almost 15% of the world's electricity capacity.Most of the Developed Countries have installed gigawatts of nuclear power during the heydays of 1960-1980s before the Chernobyl and Three Mile Nuclear Reactor Failures.Nuclear Energy has come into renewed focus after the drastic nuclear accident at the Fukushima Dai-ichi Plant of TEPCO in north Japan.The 6 nuclear reactors have to be decommissioned after most of the safety processes failed at the plant following a massive earthquake.However Nuclear Energy will continue to play a big role as the installed base of nuclear power is too huge and the growing demands of developing countries too large.China and India have massive growth targets for Nuclear Power given its low costs and non-GHG emitting properties.Like Hydroelectricity,Nuclear Electricity is the only large scale baseload source of energy which does not contribute to Global Warming.There are many advantages to nuclear power but the massive tail risks of catastrophic radioactive poisoning is too enormous.This has resulted in a global backlash as people across the world (Germany,India) are protesting to stop Nuclear Power.NIMBY concerns are growing by the day as the fallout from radiation can permanently make a large area inhospitable to human/animal life for many years.Here are the detailed list of the Cons of Nuclear Energy.
March 31, 2011
The French President Sarkozy has become the first international leader to visit Japan after the Fukushima Dai-ichi Nuclear Disaster which has simmered for more than 3 weeks.Japan and France do not have a strategic relationship like USA and Japan does nor do these countries have shown great friendship in the past.So it surprising why Sarkozy has gone to Japan on such a short notice to pledge all French help to the Japanese in the wake of the radioactivity leaking from the reactors in northern Japan.Note France has been the leader in the Libyan no fly zone as well calling for Western intervention in a mostly domestic civil war.France has not got too much involved in other civil wars raging in the Middle East.It has been selective over it choice for jumping up and down over human rights.The glaring Western and French silence over the Saudi invasion of Bahrain and violent suppression of its citizens by the Middle Eastern dictators tells of a hypocrisy.
March 31, 2011
Hydroelectricity is one of the largest sources of energy accounting for roughly 20% of the worldwide demand of electricity with around 800 GW of capacity installed.There is considerable potential still left and developing countries like India and China can be expected to install another 500 GW over the coming years.Hydroelectricity is very important as it does not lead to GHG emissions and contribute to global warming.It also does not have the drawbacks like other renewable energy forms of high costs and intermittency.The advantages of hydroelectricity are substantial enough to far outweigh any disadvantages.But like nuclear energy,hydro power has some tail risks which can lead to catastrophic damage.The costs of hydroelectricity are not a simple function of dollar costs.It should also take into account the massive displacement costs in case of massive hydro dams,the loss of ecology and potential tails risks which can lead to massive payments.
March 31, 2011
Net Metering is a very important Electricity Policy for the promotion of Distributed Electricity Production from Renewable Energy Sources especially Solar Energy.All consumer establishments connected to the power grid have an electricity meter installed which measure the amount of power consumed during a month in Kilowatt Hours (KwH) which is known as one unit.The power utility compiles the data for power consumption during 1 month and sends a bill which is usually the number of KwH multiplied by the retail electricity rate which can vary widely from 10c/KwH to around 35c/KwH depending on the geography.
March 31, 2011
India's Green Companies are seeing tremendous growth backed by the nation's massive energy demand increase.The 8% Plus Economic Growth coupled with the already massive electricity deficit which makes brownouts of 8 hours a day normal in many places in the country provides the macro background underpinning the growth.India's Green Industry is still in a nascent state compared to the massive solar and wind industries in countries like China and Germany.However attracted by the massive potential a number of companies small and large have entered the fray.Most of India's large energy groups,utilities have already established a small presence or are in process of doing so.While Wind Energy is the largest Renewable Energy Industry in India after HydroElectricity,Geothermal Energy is non-existent without a single large commercial plant.Biomass Energy is quite well developed and Solar Energy is the fastest growing Green Industry.Here is a comprehensive list of the Green Companies in India operating in the different Alternative Energy Sectors.
March 31, 2011
China which has the most ambitious growth planned for nuclear energy is already rethinking its target 3 weeks after the Fukushima plant in Japan started spewing out radioactivity.Note there has been a strong global backlash against nuclear energy around the world and 7 nuclear plants in Germany have been closed all but in name.Other countries like South Korea,Italy,Switzerland are rethinking of what do about their nulcear reactors giving the massive tail risks with nuclear generation.Already 2 earlier nuclear disasters in Chernobyl and Three Mile Island had massively damaged the surrounding ecosystem poisoning humans and animals alike with radiation.Japan too may see its land areas near the reactors be quarantined for many years as TEPCO has failed to control the nuclear plant and government will probably pour concrete.