Blue Energy Seems Feasible And Offers Considerable Benefits

On 3 November, Jan Post is presenting his research during his doctorate dissertation on this subject from Wageningen University.
The principle of generating electricity by mixing salt and fresh water, taking advantage of the difference in charge that results, has been known for more than 100 years. It was first tested in practice in a laboratory in the 1950s. There are two methods for generating blue energy: pressure-retarded osmosis and reverse electrodialysis.
Post, in his research, has focused mainly on the latter because it is the more attractive method of generating energy from sea and river water. With his research into the practical applicability, techniques and preconditions for large-scale energy generation from salinity gradients, he was the first to demonstrate that very high yields are possible. In the laboratory, it is possible to recover more than 80% of the energy from salinity gradients; the technical feasibility would be 60-70% and the economic feasibility a little lower than that.
There are differences among continents: the technical potential in Australia (65%) or Africa (61%) is greater than in South America (47%). There are also considerable differences between rivers -- there are 5472 large rivers worldwide. These differences depend on the salt concentration in the rivers and seas, temperature, and environmental factors. The Rhine is one of the most 'energetic' rivers in Europe.
Afsluitdijk
Post investigated the possibility of recovering energy from the Rhine and the Maas rivers. He estimated the technical potential of both rivers to be 2.4 gigawatts per year. He believes it would be economically feasible to recover 1.5 gigawatts; enough to supply 4 million households in the Netherlands. A power station of around 200 megawatts -- comparable with a park containing 200 wind turbines -- could be placed at the Afsluitdijk (the famous Closure Dike in the Northern part of the Netherlands) which, according to Post, is a rather suitable place for the large-scale trials that need to be carried out. This test location on the Afsluitdijk could be combined with the redesign of the dike that is already being planned. Heavy investment is necessary but this type of clean energy is extremely promising and, since it is essential to look for alternatives to fossil energy, this investment would be worthwhile in every respect. It will be at least ten years before the first commercial power stations are operational, Post says.
Technological developments
Post believes that in the next few years it will be necessary to work even more intensively on two technological developments that will bring down the present, rather high, price of generating blue electricity. An appropriate membrane technology should be developed and, furthermore, such membranes should become much cheaper by introducing mass production. The technique should also be robust enough to work both when the water is polluted and when living organisms accumulate on the membranes (biofouling). His research showed that both hindrances could be removed in the future.
Blue Energy Seems Feasible And Offers Considerable Benefits

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Hidden Costs Of Energy Production And Use

Requested by Congress, the report assesses what economists call external effects caused by various energy sources over their entire life cycle -- for example, not only the pollution generated when gasoline is used to run a car but also the pollution created by extracting and refining oil and transporting fuel to gas stations. Because these effects are not reflected in energy prices, government, businesses and consumers may not realize the full impact of their choices. When such market failures occur, a case can be made for government interventions -- such as regulations, taxes or tradable permits -- to address these external costs, the report says.
The committee that wrote the report focused on monetizing the damage of major air pollutants -- sulfur dioxide, nitrogen oxides, ozone, and particulate matter -- on human health, grain crops and timber yields, buildings, and recreation. When possible, it estimated both what the damages were in 2005 (the latest year for which data were available) and what they are likely to be in 2030, assuming current policies continue and new policies already slated for implementation are put in place.
The committee also separately derived a range of values for damages from climate change; the wide range of possibilities for these damages made it impossible to develop precise estimates of cost. However, all model results available to the committee indicate that climate-related damages caused by each ton of CO2 emissions will be far worse in 2030 than now; even if the total amount of annual emissions remains steady, the damages caused by each ton would increase 50 percent to 80 percent.
Damages From Electricity Generation
Coal accounts for about half the electricity produced in the U.S. In 2005 the total annual external damages from sulfur dioxide, nitrogen oxides, and particulate matter created by burning coal at 406 coal-fired power plants, which produce 95 percent of the nation's coal-generated electricity, were about $62 billion; these nonclimate damages average about 3.2 cents for every kilowatt-hour (kwh) of energy produced. A relatively small number of plants -- 10 percent of the total number -- accounted for 43 percent of the damages. By 2030, nonclimate damages are estimated to fall to 1.7 cents per kwh.
Coal-fired power plants are the single largest source of greenhouse gases in the U.S., emitting on average about a ton of CO2 per megawatt-hour of electricity produced, the report says. Climate-related monetary damages range from 0.1 cents to 10 cents per kilowatt-hour, based on previous modeling studies.
Burning natural gas generated far less damage than coal, both overall and per kilowatt-hour of electricity generated. A sample of 498 natural gas fueled plants, which accounted for 71 percent of gas-generated electricity, produced $740 million in total nonclimate damages in 2005, an average of 0.16 cents per kwh. As with coal, there was a vast difference among plants; half the plants account for only 4 percent of the total nonclimate damages from air pollution, while 10 percent produce 65 percent of the damages. By 2030, nonclimate damages are estimated to fall to 0.11 cents per kwh. Estimated climate damages from natural gas were half that of coal, ranging from 0.05 cents to 5 cents per kilowatt-hour.
The life-cycle damages of wind power, which produces just over 1 percent of U.S. electricity but has large growth potential, are small compared with those from coal and natural gas. So are the damages associated with normal operation of the nation's 104 nuclear reactors, which provide almost 20 percent of the country's electricity. But the life cycle of nuclear power does pose some risks; if uranium mining activities contaminate ground or surface water, for example, people could potentially be exposed to radon or other radionuclides; this risk is borne mostly by other nations, the report says, because the U.S. mines only 5 percent of the world's uranium. The potential risks from a proposed long-term facility for storing high-level radioactive waste need further evaluation before they can be quantified. Life-cycle CO2 emissions from nuclear, wind, biomass, and solar power appear to be negligible when compared with fossil fuels.
Damages From Heating
The production of heat for buildings or industrial processes accounts for about 30 percent of American energy demand. Most of this heat energy comes from natural gas or, to a lesser extent, the use of electricity; the total damages from burning natural gas for heat were about $1.4 billion in 2005. The median damages in residential and commercial buildings were about 11 cents per thousand cubic feet, and the proportional harm did not vary much across regions. Damages from heat in 2030 are likely to be about the same, assuming the effects of additional sources to meet demand are offset by lower-emitting sources.
Damages From Motor Vehicles And Fuels
Transportation, which today relies almost exclusively on oil, accounts for nearly 30 percent of U.S. energy demand. In 2005 motor vehicles produced $56 billion in health and other nonclimate-related damages, says the report. The committee evaluated damages for a variety of types of vehicles and fuels over their full life cycles, from extracting and transporting the fuel to manufacturing and operating the vehicle. In most cases, operating the vehicle accounted for less than one-third of the quantifiable nonclimate damages, the report found.
Damages per vehicle mile traveled were remarkably similar among various combinations of fuels and technologies -- the range was 1.2 cents to about 1.7 cents per mile traveled -- and it is important to be cautious in interpreting small differences, the report says. Nonclimate-related damages for corn grain ethanol were similar to or slightly worse than gasoline, because of the energy needed to produce the corn and convert it to fuel. In contrast, ethanol made from herbaceous plants or corn stover -- which are not yet commercially available -- had lower damages than most other options.
Electric vehicles and grid-dependent (plug-in) hybrid vehicles showed somewhat higher nonclimate damages than many other technologies for both 2005 and 2030. Operating these vehicles produces few or no emissions, but producing the electricity to power them currently relies heavily on fossil fuels; also, energy used in creating the battery and electric motor adds up to 20 percent to the manufacturing part of life-cycle damages.
Most vehicle and fuel combinations had similar levels of greenhouse gas emissions in 2005. There are not substantial changes estimated for those emissions in 2030; while population and income growth are expected to drive up the damages caused by each ton of emissions, implementation of new fuel efficiency standards of 35.5 miles per gallon will lower emissions and damages for every vehicle mile traveled. Achieving significant reductions in greenhouse gas emissions by 2030 will likely also require breakthrough technologies, such as cost-effective carbon capture and storage or conversion of advanced biofuels, the report says.
Both for 2005 and 2030, vehicles using gasoline made from oil extracted from tar sands and those using diesel derived from the Fischer-Tropsch process -- which converts coal, methane, or biomass to liquid fuel -- had the highest life-cycle greenhouse gas emissions. Vehicles using ethanol made from corn stover or herbaceous feedstock such as switchgrass had some of the lowest greenhouse gas emissions, as did those powered by compressed natural gas.
Fully implementing federal rules on diesel fuel emissions, which require vehicles beginning in the model year 2007 to use low-sulfur diesel, is expected to substantially decrease nonclimate damages from diesel by 2030 -- an indication of how regulatory actions can significantly affect energy-related damages, the committee said. Major initiatives to further lower other emissions, improve energy efficiency, or shift to a cleaner mix of energy sources could reduce other damages as well, such as substantially lowering the damages attributable to electric vehicles.
The report was sponsored by the U.S. Department of the Treasury. National Academy of Sciences, National Academy of Engineering, Institute of Medicine, and National Research Council make up the National Academies.
Hidden Costs Of Energy Production And Use

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Plugging Into An Electric Vehicle Revolution

CSIRO engineers have modified the PHEVs to carry a 30Ah NiMH battery which is capable of holding a 6kw charge, and a battery charger, to allow the cars to plug into and charge with electricity from the grid or from on-site renewable energy sources.
CSIRO Energy Transformed Flagship scientist Dr Phillip Paevere said the road trial is collecting extensive information on how the existing PHEV technology could be used for a new application: using the car as a large mobile battery which can be integrated and used in the home.
"The PHEVs have been fitted with instruments which will monitor the travel patterns of different users, and the residual battery power left in the car at the end of the day, which could be available for other uses," Dr Paevere said.
"When not needed, the parked car in the driveway could potentially become a large battery store and energy source for the house, running appliances or storing off-peak or surplus electricity generated from on-site renewable generators, such as solar panels."
SP AusNet spokesperson, Sean Sampson, said the trial will also allow thorough analysis of what the electricity demands are likely to be when PHEVs are connected to the network for charging.
"The introduction of electric vehicles into the mainstream market could have a significant impact on the electricity network," Mr Sampson said.
"They may also dramatically affect the output at residential and retail outlets and the forecasted growth of peak and base demands."
The transport sector accounts for 14 per cent of Australia's total greenhouse gas emissions.
PHEVs have the potential to reduce our emissions and may also provide a way to manage peak demand on the electricity grid.
By controlling when PHEVs are recharging from the electricity network the burden of demand can be shifted.
Furthermore, the car battery can be drawn upon to provide power during peak periods of demand, prevent blackouts when there is a network supply interruption and assist in maintaining the overall stability of the network.
The road trial is the first phase in understanding the potential for using PHEVs in Australian homes.
The PHEV technology will also be used in the home energy system of CSIRO's Zero Emission House (AusZEH) project.
Plugging Into An Electric Vehicle Revolution

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Key Step Made Towards Turning Methane Gas Into Liquid Fuel

Methane, the primary component of natural gas, is plentiful and is an attractive fuel and raw material for chemicals because it is more efficient than oil, produces less pollution and could serve as a practical substitute for petroleum-based fuels until renewable fuels are widely useable and available.
However, methane is difficult and costly to transport because it remains a gas at temperatures and pressures typical on the Earth's surface.
Now UNC and UW scientists have moved closer to devising a way to convert methane to methanol or other liquids that can easily be transported, especially from the remote sites where methane is often found. The finding is published in the Oct. 23 issue of the journal Science.
Methane is valued for its high-energy carbon-hydrogen bonds, which consist of a carbon atom bound to four hydrogen atoms. The gas does not react easily with other materials and so it is most often simply burned as fuel. Burning breaks all four hydrogen-carbon bonds and produces carbon dioxide and water, said Karen Goldberg, a UW chemistry professor.
Converting methane into useful chemicals, including readily transported liquids, currently requires high temperatures and a lot of energy. Catalysts that turn methane into other chemicals at lower temperatures have been discovered, but they have proven to be too slow, too inefficient or too expensive for industrial applications, Goldberg said.
Binding methane to a metal catalyst is the first step required to selectively break just one of the carbon-hydrogen bonds in the process of converting the gas to methanol or another liquid. In their paper, the researchers describe the first observation of a metal complex (a compound consisting of a central metal atom connected to surrounding atoms or molecules) that binds methane in solution. This compound serves as a model for other possible methane complexes. In the complex, the methane's carbon-hydrogen bonds remained intact as they bound to a rare metal called rhodium.
The work should spur further advances in developing catalysts to transform methane into methanol or other liquids, Goldberg said, although she noted that actually developing a process and being able to convert the gas into a liquid chemical at reasonable temperatures still is likely some distance in the future.
"The idea is to turn methane into a liquid in which you preserve most of the carbon-hydrogen bonds so that you can still have all that energy," she said. "This gives us a clue as to what the first interaction between methane and metal must look like."
Maurice Brookhart, a UNC chemistry professor, said carbon-hydrogen bonds are very strong and hard to break, but in methane complexes breaking the carbon-hydrogen bond becomes easier.
"The next step is to use knowledge gained from this discovery to formulate other complexes and conditions that will allow us to catalytically replace one hydrogen atom on methane with other atoms and produce liquid chemicals such as methanol," Brookhart said.
The lead author of the paper is Wesley Bernskoetter of Brown University, who did the work while at UNC. Goldberg, Brookhart and Cynthia Schauer, associate chemistry professor at UNC, are co-authors.
The work comes out of a major National Science Foundation-funded collaboration, the UW-based Center for Enabling New Technologies Through Catalysis, which involves 13 universities and research centers in the United States and Canada, including UNC. Additional funding came from the National Institutes of Health.
The center, directed by Goldberg, is aimed at finding efficient, inexpensive and environmentally friendly ways to produce chemicals and fuels.
Key Step Made Towards Turning Methane Gas Into Liquid Fuel

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Climate Scientists Uncover Major Accounting Flaw In Kyoto Protocol And Other Climate Legislation

Current carbon accounting, used in the Kyoto Protocol and other climate legislation including the European Union's cap-and-trade law and the American Clean Energy and Security Act, does not factor CO2 released from tailpipes and smokestacks utilizing bioenergy nor does it count emissions resulting from land use changes when biomass is harvested or grown. This, the scientists say, erroneously treats all uses of bioenergy as carbon neutral, regardless of the source of the biomass, and could create strong economic incentives for large-scale land conversion as countries around the world tighten carbon caps.
"The error is serious, but readily fixable," said Timothy Searchinger, a research scholar and lecturer in public and international affairs at Princeton University's Woodrow Wilson School and at the Princeton Environmental Initiative. He also is a fellow with the German Marshall Fund of the United States.
"As we approach the most important climate treaty negotiations in history, it is vital that technologies, such as biofuels, that are proposed as solutions to global warming, are properly evaluated," said team member Daniel Kammen, a University of California, Berkeley, professor of energy and resources and of public policy, who directs the campus's? Renewable and Appropriate Energy Laboratory and the Transportation Sustainability Research Center. "Our paper builds on recent work on the direct and indirect land use impacts of biofuels, and clarifies how the accounting should be done."
The burning of bioenergy and fossil energy releases comparable amounts of carbon dioxide from tailpipes or smokestacks, but bioenergy use may reduce emissions overall if the biomass results from additional plant growth. This is because plants grown specifically for bioenergy absorb carbon dioxide from the atmosphere, and this offsets the emissions from the eventual burning of the biomass for energy.
On the other hand, burning forests releases stored carbon into the atmosphere in the same way as burning oil releases carbon stored for millions of years underground. For these reasons, the greenhouse gas consequences of using bioenergy vary greatly with the source of the biomass.
Unfortunately, Kammen said, the accounting rules used in the Kyoto Protocol, the European Union's Emissions Trading System, and in the climate bill that recently passed the U.S. House of Representatives, exempt the carbon dioxide emitted by bioenergy, regardless of the source of the biomass. That legally makes bioenergy from any source, even that generated by clearing the world's forests, a potentially cheap, yet false, way to reduce greenhouse gas emissions by oil companies, power plants and industry as they face tighter pollution limits.
According to a number of studies, including one by a U.S. Department of Energy lab, applying this incentive globally could lead to the loss of most of the world's natural forests as carbon caps tighten.
The Science article, co-authored by Searchinger, Kammen and 11 others, explains that the error stems from a misapplication of guidelines established by the Intergovernmental Panel on Climate Change (IPCC) at the time of the Kyoto Protocol.
According to the IPCC, exempting carbon dioxide from bioenergy use is appropriate only if an accounting system also counts emissions from clearing land and other land use activities. In that way, if biomass for energy use results in deforestation, emissions are counted as land use emissions. However, the exemption of carbon dioxide from energy use is inappropriate for laws and treaties that do not legally limit emissions from deforestation and other land use activities. Neither the protocol, nor the existing or proposed climate legislation in Europe and the U.S., apply limits to emissions from land use. Because these laws nevertheless exempt all emissions from bioenergy use, the IPCC warns, they can therefore create large, perverse incentives to clear land.
This error in the system for administering carbon caps is distinct from other laws that require minimum quantities of biofuels. Many of these other laws do account for at least some of the emissions from land use activities.
According to the authors, the solution is to count all emissions from energy use, whether from fossil fuels or bioenergy, and then to develop a system to credit bioenergy to the extent it uses biomass derived from "additional" carbon sources, and thereby offsets energy emissions.
Climate Scientists Uncover Major Accounting Flaw In Kyoto Protocol And Other Climate Legislation

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Shifting The World To 100 Percent Clean, Renewable Energy As Early As 2030: Here Are The Numbers

To make clear the extent of those hurdles – and how they could be overcome – they have written an article in Scientific American. In it, they present new research mapping out and evaluating a quantitative plan for powering the entire world on wind, water and solar energy, including an assessment of the materials needed and costs. And it will ultimately be cheaper than sticking with fossil fuel or going nuclear, they say.
The key is turning to wind, water and solar energy to generate electrical power – making a massive commitment to them – and eliminating combustion as a way to generate power for vehicles as well as for normal electricity use.
The problem lies in the use of fossil fuels and biomass combustion, which are notoriously inefficient at producing usable energy. For example, when gasoline is used to power a vehicle, at least 80 percent of the energy produced is wasted as heat.
With vehicles that run on electricity, it's the opposite. Roughly 80 percent of the energy supplied to the vehicle is converted into motion, with only 20 percent lost as heat. Other combustion devices can similarly be replaced with electricity or with hydrogen produced by electricity.
Jacobson and Delucchi used data from the U.S. Energy Information Administration to project that if the world's current mix of energy sources is maintained, global energy demand at any given moment in 2030 would be 16.9 terawatts, or 16.9 million megawatts.
They then calculated that if no combustion of fossil fuel or biomass were used to generate energy, and virtually everything was powered by electricity – either for direct use or hydrogen production – the demand would be only 11.5 terawatts. That's only two-thirds of the energy that would be needed if fossil fuels were still in the mix.
In order to convert to wind, water and solar, the world would have to build wind turbines; solar photovoltaic and concentrated solar arrays; and geothermal, tidal, wave and hydroelectric power sources to generate the electricity, as well as transmission lines to carry it to the users, but the long-run net savings would more than equal the costs, according to Jacobson and Delucchi's analysis.
"If you make this transition to renewables and electricity, then you eliminate the need for 13,000 new or existing coal plants," Jacobson said. "Just by changing our infrastructure we have less power demand."
Jacobson and Delucchi chose to use wind, water and solar energy options based on a quantitative evaluation Jacobson did last year of about a dozen of the different alternative energy options that were getting the most attention in public and political discussions and in the media. He compared their potential for producing energy, how secure an energy source each was, and their impacts on human health and the environment.
He determined that the best overall energy sources were wind, water and solar options. His results were published in Energy and Environmental Science.
The Scientific American article provides a quantification of global solar and wind resources based on new research by Jacobson and Delucchi.
Analyzing only on-land locations with a high potential for producing power, they found that even if wind were the only method used to generate power, the potential for wind energy production is 5 to 15 times greater than what is needed to power the entire world. For solar energy, the comparable calculation found that solar could produce about 30 times the amount needed.
If the world built just enough wind and solar installations to meet the projected demand for the scenario outlined in the article, an area smaller than the borough of Manhattan would be sufficient for the wind turbines themselves. Allowing for the required amount of space between the turbines boosts the needed acreage up to 1 percent of Earth's land area, but the spaces between could be used for crops or grazing. The various non-rooftop solar power installations would need about a third of 1 percent of the world's land, so altogether about 1.3 percent of the land surface would suffice.
The study further provides examples of how a combination of renewable energy sources could be used to meet hour-by-hour power demand, addressing the commonly asked question, given the inherent variability of wind speed and sunshine, can these sources consistently produce enough power? The answer is yes.
Expanding the transmission grid would be critical for the shift to the sustainable energy sources that Jacobson and Delucchi propose. New transmission lines would have to be laid to carry power from new wind farms and solar power plants to users, and more transmission lines will be needed to handle the overall increase in the quantity of electric power being generated.
The researchers also determined that the availability of certain materials that are needed for some of the current technologies, such as lithium for lithium-ion batteries, or platinum for fuel cells, are not currently barriers to building a large-scale renewable infrastructure. But efforts will be needed to ensure that such materials are recycled and potential alternative materials are explored.
Finally, they conclude that perhaps the most significant barrier to the implementation of their plan is the competing energy industries that currently dominate political lobbying for available financial resources. But the technologies being promoted by the dominant energy industries are not renewable and even the cleanest of them emit significantly more carbon and air pollution than wind, water and sun resources, say Jacobson and Delucchi.
If the world allows carbon- and air pollution-emitting energy sources to play a substantial role in the future energy mix, Jacobson said, global temperatures and health problems will only continue to increase.
Shifting The World To 100 Percent Clean, Renewable Energy As Early As 2030: Here Are The Numbers

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Renewable Energy From Environment

Renewable energy is made from resources that Mother Nature will replace, like wind, water and sunshine. It is also being called "clean energy" or "green power" because it doesn't pollute the air or the water. It a power source that is not limited, as fossil fuels are.

Renewable energy is considered a very important solution to a problem that hasgrown out of control worldwide. It has been determined to be a clean alternative energy source.
Renewable energy is ready for a global takeoff, and has become the answer for a better tomorrow.

Renewable energy is a broad category of sources that draws from the energy around us naturally. Renewable energy is seen as one of the important components of climate change solution. It is astounding that so much of the worlds fossil fuels have been depleted, and that renewable energy is just now be sought as a viable alternative.

Renewable energy is the main component of eco-energy planning. It is available in a variety of methods of use, which can reduce energy consumption, preclude energy utilization and eliminate our dependence on non-renewable energy sources.

Renewable energy is produced from continuously available natural processes that do not involve the consumption of exhaustible resources such as fossil fuels. Renewable energy is also called “clean energy” or “green power” because it doesn’t pollute the air or the water.

Renewable energy is used for electricity generation, heat in industrial processes, heating and cooling buildings, and transportation fuels. It is assisting America in meeting its energy needs. Renewable energy effectively utilizes natural resources such as sunlight, wind, tides and geothermal heat, which are naturally replenished. Renewable energy systems encompass a broad and diverse array of technologies, and the current status of these can vary considerably.

Renewable energy power generated from the nearly infinite elements of nature such as sunshine, wind, the movement of water, the internal heat of the Earth, and the combustion of replenishable crops is very popular with the public and governmental officials because it is an unlimited and environmentally gentle source of power, particularly compared with the supposedly limited and environmentally challenging alternative of reliance on fossil fuels and nuclear power.

Renewable energy can help the United States rely on domestic sources of energy, which will eventually eliminate our need for oil or slow the growth of our consumption. Renewable energy can meet our energy requirements while decreasing our greenhouse gas emissions.

Renewable energy can provide significant opportunities for developing countries and rural areas as well as in industrialized countries.

Renewable Energy - Green Energy Online

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The Future Is Renewable Energy - Green Energy Online

We have come along way in developing societies that have electricity and the power necessary to fuel vehicles and for industry to be successful. All of these efforts though rely upon the use of energy source that comes from fossil fuels.

They are found in the ground and have to be processed in order for us to have that fuel and that electricity. They are known as coal, natural gas, and fuel. We rely on them way too much for our own good and that is why change is so important.
The problem though is that our dependence on it continues to grow. As more people are upon the Earth than ever before we are using more every single day. People are living longer too due to advances in health care. We are certainly a society dependent upon our electronic gadgets as well.

While those are all good things for us to be happy about, the fact that we are depleting the fossil fuel available is not. This type of energy source is not one that we will be able to replace. When it is gone it is gone and that is the reality of the situation.

It will not all disappear during our lifetimes, but it is going to pose a problem for future generations. While efforts can be made to converse fossil fuels, eliminating enough of the use in order to really make a difference is not going to occur unless we take a close look at some alternative methods.

Society is not going to go back to using horses and carriages for transportation. They also are not going to go back to lighting their homes with candles at night. With the computer use around us in homes and for business it is not even practical to suggest we stop using the electricity that is necessary to allow them to operate.

We can often take for granted just turning the key and our car starts, turning on the thermostat to have heating or cooling in our home, and flipping a switch to give us the lighting we need in any room. Some people are also selfish as they do not care what is going to happen for future generations as long as they have what they need right now.

Luckily, the majority of the population does not think that way. They are not out to use everything they can without looking back. The problem though is that they often do not realize what they are using could be a problem down the road. Even if they do, they may not realize that they have some other options they can try to implement.

Learning about the various types of renewable energy is a great way to get a person thinking about changes they can implement. There have been some significant efforts made in this area but there is still much more than needs to be taking place. Instead of being afraid of what is unknown to you, do your best to learn the basics of all the renewable energy sources possible.

The government of the United States has gotten involved in promoting renewable energy sources as well. They offer some great financial incentives for homes and businesses to you them. Even so, there is sometimes a high overhead to get everything in place. This can prevent many people from being a part of saving our natural resources even when they really would like to.

It is estimated that about 13 percent of our current energy is the result of renewable energy. With the money to cover the expenses, advanced technology, and a desire by society to continue using them we can see that percentage significantly increase. There are plenty of benefits to renewable energy too such as not harming the environment with pollutants.

If you are asking yourself why we do not just turn to them now the answer is not that simple. In a nutshell there is still a great deal of research that needs to be completed. There is also the high cost to contend with as well as various disadvantages with each of the types of renewable energy.

If you keep on reading though you will get to this information as well. Then it will make sense as far and the big picture of what we currently get from renewable energy, what the limitations are, and what we can expect into the future. This will help you to understand the benefits as well as the drawbacks of the situation more clearly.

The Future Is Renewable Energy - Green Energy Online

0 comments RSS Posted by Krasugir & Co at 6:41 AM

Please stop using plastic bags for Green Environment

Plastic bags are one of the most recognizable for the modern culture. In the recent years since the introduction the first plastic were introduced in US for the purpose of baggies for bread, sandwiches and fruits.

Recently in Delhi High Court tightened norms regulating use and recycling of plastic bags in the capital to check their indiscriminate use as they pose a serious health and pollute the environment. This ban is applicable for City main markets and Local shopping centers. The use of plastic is already banned in hotels, hospitals and malls.

Mumbai city was flooded in the past year due to use of plastic bags especially thinner variety. The ban has not really made move away from plastic, they have moved to the thicker variety. the result is that prices of all plastic raw materials have gone about 15-20 percent over the past few months,

0 comments RSS Posted by Krasugir & Co at 9:28 PM

Renewable Energy

Renewable energy is energy generated from nature resources such as sunlight, water, wind. This energy is called as green power because it doesn't pollute the nature while usage nor producing. The fossil fuels supplies are going to perish people are realizing now to maintain those fossil fuels for their next generation.

New initiatives aimed at encouraging people to personally to use greener technologies and to limit the amount of energy they use in their properties. United States are relying on domestic sources of energy, which will eventually eliminate their need for oil or slow the growth of their consumption.

• Wind Energy - Produced by using wind power used to run the wind turbines.

• Solar Energy - Produced by collecting energy from the sunlight using photovoltaic solar cells.

• Water Power - Energy in the water present in the form of kinetic energy is converted using mechanical equipment.

• Bio Fuel - Bio diesel or vegetable oil are known as ethanol fuel can be used in diesel vehicles.

• Bio Gas - Produced from current waste streams such aas paper production, sugar production, animal waste and sewage.

3 comments RSS Posted by Krasugir & Co at 9:20 AM

renewable energy generation

Building renewable energy generation may help, but with overall energy demand continually rising, they may not offset the impacts of traditional energy supplies so much as they merely supplement those supplies with cleaner sources of power.

I guess I hope we come to see carbon offsets as a stop-gap solution and not as a permanent answer that licenses us to keep on keeping on albeit without any guilt or responsibility for our own behaviors. It really feels to me like they're a temporary strategy to reduce some of our impacts and help finance a bigger, more impactful renewable energy infrastructure, a voluntary carbon tax of sorts, rather than a solution. The only real answer to climate change that I see is to make changes in how we use energy so that we use less of it at all times, regardless of whether or not we're offsetting, and to develop and widely disseminate those technologies that permit us to make these changes without the kinds of sacrifices that turn people off by recalling a Paleolithic lifestyle.

0 comments RSS Posted by Krasugir & Co at 3:48 AM