Monday, January 26, 2009
New Urbanism And Atlernative Energy
The light and heat produced by the sun is what we call solar energy. Having a limitless supply sunlight is also free. No pollution is caused through the use of solar energy. But there is still some impacts on the environment although indirect.Sunlight is converted into electricity through the use of photovoltaic cells. These cells are made of silicon and the manufacture of these cells does produce some waste material. If not properly managed, solar thermal farms can negatively impact the environment, particularly desert ecosystems.Many applications can benefit through the use of solar energy. Solar power, without doubt is a boon for the agriculture industry. Areas that have a short growing season, such as the mountains of South America, use greenhouses to convert some of the sun‘s energy into heat to provide the necessary temperature to grow crops. The first modern greenhouses were built in the 16th century, however, the Romans were the first to use such an idea.To maximize usage of the energy generated by the sun, daylight systems have been installed in many homes and businesses. Using daylight illumination as a replacement for artificial lighting can reduce the power bill for the home or business in a dramatic fashion. Among the choices of daylight systems are skylights, light tubes, light shelves and saw tooth roof systems. Proper installation and use of a daylight system can effectively reduce power bills by as much as 25%.Solar thermal technologies greatly enhance the abilities of solar power as these provide the means of space heating, space cooling and process heat generation. Water distillation, the process by which brackish or saline water is made potable, is also possible with solar energy.SODIS, or solar water disinfection, is a process in which polyethylene terephthalate bottles are filled with water and exposed to sunlight. This process takes a long time, requiring 6 hours to two days depending on weather conditions. At this time more than two million people in developing countries use SODIS as their primary manner of acquiring drinking water.Sunlight is converted to electricity through photovoltaic cells. To this point, photovoltaic cells have been mainly used to power small and medium-sized things like calculators powered by a single solar cell. Even so, more and more homes are being powered by photovoltaic cells. Solar energy is utilized by numerous methods. Using photovoltaic cells is the primary method of collecting solar energy. Solar energy is converted to electricity by photovoltaic cells.Solar furnaces use a vast array of mirrors to focus the Sun’s energy onto a small space to produce very high temperatures which are in turn used to boil water to create steam to drive turbines which generate electricity. This is a complex process, nonetheless Spain and several other countries are already successful in generating substantial amounts of electricity in this manner.Solar power does not function at night, despite all of its usefulness during the day. It may prove that vast arrays of batteries can store adequate amounts of the sun‘s energy during the day to power civilization at night. More likely, another form of renewable energy, such as wind power or OTEC, can fill the void. Whatever the case turns out to be, the reality is that mankind has numerous alternatives to petroleum.
Monday, January 19, 2009
Green Energy For The Home
The knowledge of the many forms of alternative energy reveal many options for energy independence.The conversion of sunlight to electricity via photovoltaic cells is known as solar power. Solar power can be used without photovoltaic cells to cook, heat water and space and perform space cooling. Education of the public concerning the benefits of solar power will help propel the furtherance of this type of energy source.Solar power cannot supply energy when there is no sunlight available, however, it can be supplemented with a wind turbine system. Wind power is an original primitive resource. Wind farms are being established at this moment to harness the power of the wind. The combination of these two types of renewable energy can help an individual become energy independent. Once again, the education of the public is imperative.Renewable energy can also be found in hydroelectric power. Dams have been built to assist with the generation of hydroelectricity. However, dams are expensive to build and maintain and have great environmental impact. Smaller, run of river hydroelectric generators can produce power for homes, office buildings and even entire neighborhoods.Biomass is becoming an increasing popular form of renewable energy. Biomass is typically thought of as plants grown to produce fuel. While this colloquialism contains elements of truth, it is not entirely correct. Biomass also includes plant and animal matter used to produce fibers. Biomass technology still has years of development, but it is a worthwhile venture in renewable energy.You can uncover the means of supplying your own energy from multiple renewable resources. We have the ability to teach the future how to be energy independent.
Thursday, January 15, 2009
Educating The Public Regarding Renewable Reasources
The knowledge of the many forms of renewable energy.
The use of photovoltaic cells to convert sunlight into electricity is called solar power. Solar power can be used without photovoltaic cells to cook, heat water and space and perform space cooling. Public education on the various forms of renewable energy will increase the awareness of the availability of energy from sources other than fossil fuels.
The lack of sunlight prevents solar power from being useful at night, however, solar power does well with supplementation from a wind turbine system. Wind power is an original primitive resource. Wind farms are being established at this moment to harness the power of the wind. The combination of these two types of renewable energy can help an individual gain energy independence. Once again, the education of the public is imperative.
The earth provides another source of renewable energy in hydroelectric power. Dams have been constructed to assist with the generation of hydroelectricity. However, dams are expensive to build and maintain and have great environmental impact. Smaller, run of river hydroelectric generators can produce power for homes, office buildings and even whole communities.
Biomass is becoming an increasing popular form of renewable energy. Biomass is commonly thought of as plants grown to produce fuel. While this colloquialism contains elements of truth, it is not entirely correct. Biomass also includes plant and animal matter used in the production of fibers. Biomass technology still has years of development, but it is a promising venture in renewable energy.
You can uncover the means of supplying your own energy from multiple renewable energy resources. We have the ability to teach the future how to be energy independent.
The use of photovoltaic cells to convert sunlight into electricity is called solar power. Solar power can be used without photovoltaic cells to cook, heat water and space and perform space cooling. Public education on the various forms of renewable energy will increase the awareness of the availability of energy from sources other than fossil fuels.
The lack of sunlight prevents solar power from being useful at night, however, solar power does well with supplementation from a wind turbine system. Wind power is an original primitive resource. Wind farms are being established at this moment to harness the power of the wind. The combination of these two types of renewable energy can help an individual gain energy independence. Once again, the education of the public is imperative.
The earth provides another source of renewable energy in hydroelectric power. Dams have been constructed to assist with the generation of hydroelectricity. However, dams are expensive to build and maintain and have great environmental impact. Smaller, run of river hydroelectric generators can produce power for homes, office buildings and even whole communities.
Biomass is becoming an increasing popular form of renewable energy. Biomass is commonly thought of as plants grown to produce fuel. While this colloquialism contains elements of truth, it is not entirely correct. Biomass also includes plant and animal matter used in the production of fibers. Biomass technology still has years of development, but it is a promising venture in renewable energy.
You can uncover the means of supplying your own energy from multiple renewable energy resources. We have the ability to teach the future how to be energy independent.
Wednesday, January 14, 2009
Multiple Sources Of Renewable Energy
Constructing homes that are not only energy efficient, but powered by renewable energy sources is becoming the trend for the 21st century. The sources range from solar collection cells and wind turbines to biomass and hydroelectricity. It is finally becoming clear that energy independence is paramount. The thought of sending money to hostile foreign nations, money used to fund efforts against us, to supply our energy needs is sickening.
Solar energy has the ability to provide electricity via heat engine or photovoltaic means. Solar energy can be more useful than merely generating electricity. Solar energy can also provide hot water. Space heating can be achieved in active and passive buildings. Surprisingly enough, solar energy can also provide space cooling by means of absorption or vapor-compression refrigeration. The thermal energy provided by the Sun can also be used to cook your food.
The power of the wind can be harnessed and converted into electricity. Only 1% of the world’s electricity is generated by the wind. Nearly 20% of electricity in Denmark is derived from wind power. Spain and Portugal derive 6% of their energy needs from wind power. Individual locations can generate adequate amounts of electricity, although the nature of wind still requires connection to local power sources or to be used in conjunction with other alternative sources.
Biomass is commonly thought of as plant matter grown to generate electricity or biofuel, however plant and animal matter used in producing fibers are also considered biomass. Numerous varieties of plants are used for producing biomass. The type of plant is typically not important to the end product, but it does affect the processing of the raw material. Certainly, some will be easier and more productive to process. Included in these are hemp, corn, poplar, sorghum, switchgrass willow and various other tree species. Fossil fuels began as ancient biomass, despite this they are not considered biomass because the carbon they contain has been out of the carbon cycle for many eons. Due to this fact the combustion of fossil fuels upsets the balance of carbon dioxide in the atmosphere.
Electricity generated by hydropower is known as hydroelectricity. Hydropower is the production of electricity by way of the gravitational force of falling water. After the construction of a hydroelectric complex, it produces no direct waste. In 2005, hydropower accounted for 19% of the world’s electricity and 63% of electricity from renewable sources.
Alternative Energy is not only available from numerous sources; it has the capabilty to free the world from dependence on fossil fuels. There still remain some technological advances before we can be entirely reliant upon renewable resources. Despite this, the benefits are already being seen.
Solar energy has the ability to provide electricity via heat engine or photovoltaic means. Solar energy can be more useful than merely generating electricity. Solar energy can also provide hot water. Space heating can be achieved in active and passive buildings. Surprisingly enough, solar energy can also provide space cooling by means of absorption or vapor-compression refrigeration. The thermal energy provided by the Sun can also be used to cook your food.
The power of the wind can be harnessed and converted into electricity. Only 1% of the world’s electricity is generated by the wind. Nearly 20% of electricity in Denmark is derived from wind power. Spain and Portugal derive 6% of their energy needs from wind power. Individual locations can generate adequate amounts of electricity, although the nature of wind still requires connection to local power sources or to be used in conjunction with other alternative sources.
Biomass is commonly thought of as plant matter grown to generate electricity or biofuel, however plant and animal matter used in producing fibers are also considered biomass. Numerous varieties of plants are used for producing biomass. The type of plant is typically not important to the end product, but it does affect the processing of the raw material. Certainly, some will be easier and more productive to process. Included in these are hemp, corn, poplar, sorghum, switchgrass willow and various other tree species. Fossil fuels began as ancient biomass, despite this they are not considered biomass because the carbon they contain has been out of the carbon cycle for many eons. Due to this fact the combustion of fossil fuels upsets the balance of carbon dioxide in the atmosphere.
Electricity generated by hydropower is known as hydroelectricity. Hydropower is the production of electricity by way of the gravitational force of falling water. After the construction of a hydroelectric complex, it produces no direct waste. In 2005, hydropower accounted for 19% of the world’s electricity and 63% of electricity from renewable sources.
Alternative Energy is not only available from numerous sources; it has the capabilty to free the world from dependence on fossil fuels. There still remain some technological advances before we can be entirely reliant upon renewable resources. Despite this, the benefits are already being seen.
Sunday, January 11, 2009
Can I Use Renewable Energy In My Home
There are multiple forms of renewable energy available to the public Arguably, the most widely known is solar power. The technology used to generate electricity from sunlight is photovoltaic cells. The power of the Sun is multi-faceted as it can be used to for growing crops, space heating and cooling, cooking food and all the conveniences supplied by electricity. Solar power, along with several other forms of renewable energy, creates no pollution. More efficient use of the power of the Sun is being researched at this time. Due to the nature of sunlight, supplementation from local power, the use of lead-acid batteries or another form of renewable energy is still required. One method of supplementing solar photovoltaic cells is with a wind turbine system. Wind Energy is actually the most invested in form of alternative energy; a combination of private investors and governmental incentive. Wind farms have sprung up all over the globe. Large tracts of land and even areas of ocean are being established to cultivate the power of the wind. This is not a new idea, windmills have been used to convert the kinetic energy of the wind into mechanical energy to grind grain for centuries. Modern wind turbines are simply the new incarnations of a centuries old idea. Smaller wind turbines are available for individual use also. There is still more research necessary with wind energy technology, days without wind necessitate a connection to local power or a store of lead acid batteries. However, on days when demand is less than the power generated, many states have net metering laws, which ensure that electric companies pay individuals retail rates for energy they make available to the power companies.Another source of alternative energy is hydroelectric power. Hydroelectric energy is power produced through the action of falling water. In other words, the motion of the water as it moves downhill is used to spin turbines which generate electric power. It seems simple, but the effort and technology needed makes hydroelectricity complicated and expensive to produce. Usually a dam is built in an effort to better control the flow of water. It is expensive to build and operate a dam, not to mention the environmental impact. However, a dam is not always requisite to provide hydroelectricity. Small, run of river hydroelectric converters are available for the provision of electricity to individual homes, offices and even entire neighborhoods.Geo-thermal energy is another form of alternative energy. Geo-thermal energy is the energy stored in the hot artesian waters trapped just below the earth’s crust. The water is heated by the earth’s core. Various methods are used to harness the energy stored in these waters. Dry steam power plants use geothermal steam to turn turbines to generate electricity. Flash power plants draw hot, high-pressure water from deep in the earth. The high pressure water is released into low pressure tanks. The resultant steam is used to drive turbines which generate electricity. Binary cycle plants run semi-hot geothermal water by a secondary fluid with a lower boiling point. The flash vapor from the secondary fluid is used to drive the turbine.There are still other sources of renewable energy being developed. An energy independent future seems to be within our grasp!Renewable Resources
Saturday, January 10, 2009
Am I Petroleum Addicted
Recently, a previously unheard of addiction, although it is one that has been troubling the masses for some time, has come to light. With all the professionals that earn their living diagnosing and treating addictions it is a wonder it has remained hidden for so long. Maybe it is because the professionals are also addicted to this substance.You may be wondering what this substance is. You might laugh when you hear petroleum is the substance. You might cry when you hear the symptoms. You may breathe more easily when you hear the solution.How can I tell if I am petroleum addicted? There are a few telltale signs. When you get in your vehicle, do you immediately wonder where the lowest cost fuel is? Are you persistently worried about the price of fuel? Do you get uptight when you do think about the price of fuel? Short tempered? Nervous? Is your fuel budget subtracting from your entertainment, or category of your choice, budget? Do you continue to use petroleum despite the fact you know how badly it is hurting you to do so?If yes was the answer to one of these questions, you probably answered yes to all of these questions. These are the symptoms of petroleum addiction. The greater the occurrence of these symptoms; the greater the severity of the addiction.Do not fret, help is available in the form of renewable energy. Boone Pickens has a plan to help, however, his plan will take years to implement in an effectual manner. If that is too long for you to wait, there are many do it yourself books available to help a person to end their addiction to petroleum with renewable resources.Petroleum addiction has a stranglehold on many, however, now that it has been recognized it can be dealt with. Together we can end our collective addiction.
Friday, January 9, 2009
Producing Renewable Energy At Home
Research of the knowledge concerning renewable energy resources, reveals there are multiple forms from which to choose.The use of photovoltaic cells to convert sunlight into electricity is called solar power. Direct uses for solar power include cooking, water and space heating and even space cooling. Education of the public concerning the benefits of solar power will help propel the furtherance of this type of energy source.The lack of sunlight prevents solar power from being useful at night, however, solar power does well with supplementation from a wind turbine system. Wind power is an original primitive resource. Wind farms are being established at this moment to cultivate the power of the wind. The combination of these two types of renewable energy can help an individual become energy independent. Here again, education of the public is of utmost importance.The earth provides another source of renewable energy in hydroelectric power. Dams have been built to assist with the generation of hydroelectricity. However, dams are expensive to build and maintain and have great environmental impact. Smaller, run of river hydroelectric generators can produce power for homes, office buildings and even whole communities.A newer arrival on the renewable energy market is biomass. Biomass is generally thought of as plants grown to produce fuel. While this colloquialism contains elements of truth, it is not entirely correct. Biomass also includes plant and animal matter used to produce fibers. Biomass technology still has years of development, but it is a worthwhile venture in renewable energy.You can uncover the means of supplying your own energy from multiple renewable resources. We have the ability to teach the future how to be energy independent.
What Is Ocean Thermal Energy Conversion
Although it is not widely known among the general population, Ocean Thermal Energy Conversion has a long history of development. French engineer Jacques Arsene d’Arsonval originally developed the idea of Ocean Thermal Energy Conversion in 1881. In 1930, d’Arsonval’s student Georges Claude built the first OTEC plant in Cuba. The system used a low pressure turbine to generate 22 kW of electricity.OTEC has the potential to produce enormous quantities of electricity and should be explored to this effect. Practical implementation of OTEC is the last obstacle. The processes and technology presently used to drive OTEC are costly; however, further experimentation will bring the cost of using OTEC down.Ocean Thermal Energy Conversion can be accomplished by means of three different methods. Closed cycle, or Anderson cycle, OTEC employs a liquid with a low boiling point, ammonia for example, as an intermediate fluid. Warm water from the ocean’s surface is pumped into a reaction chamber along with the intermediate fluid; where it causes the intermediate fluid to boil. The resultant vapor is used to spin a turbine which produces electricity. The vapor of the intermediate fluid is then cooled with cold sea water from the depths of the ocean. Open cycle, or Claude cycle, OTEC is much the same as closed cycle; however, open cycle does not employ the use of an intermediate liquid. The sea water is actually used to spin the turbine in an open cycle OTEC plant. Placing warm sea water in a low pressure causes it to boil. This steam is then focused on a low pressure turbine which is attached to an electrical generator. The vapor is then cooled with water from the ocean’s depths.A key point is the fact the sea water leaves the salt and all other impurities behind when it turns to steam. After cooling the steam, the water can be used for crop irrigation and even human drinking water. In a sense, an open cycle OTEC plant is a gigantic water distillery that produces electricity.Presently, Hybrid Cycle OTEC is only a theory. It proposes finding maximum usage of the thermal energy in the ocean’s waters. It begins with closed cycle OTEC to generate the electricity used to create the necessary vacuum for open cycle OTEC. At this point two open cycles are employed, twice the electricity and distilled water will be created.Closed cycle OTEC is not only useful in producing electricity, it is also valuable in producing large amounts of hydrogen. Liquid hydrogen is used to fuel rocket engines and other industrial purposes. All forms of OTEC pump cold water from the depths of the ocean to facilitate their process. Aside from being necessary for OTEC, the cold water can be used for refrigeration and air conditioning. In Additon, the adjacent seas are used to heat the cold water that has been used to cool the flash vapor, so it can be recycled into the system after it has been sufficiently heated by the sun. Fish farming and various other aquaculture projects can be performed in these waters.Ocean Thermal Energy Conversion is multi-faceted to the extent, that with time, it may prove to be the most versatile source of alternative energy.
Wind Energy As A Renewable Resource
Many people prefer the ease of connecting to the power company‘s grid than erecting a wind turbine. Despite this this, the gains from installing such a system will be seen in the first electric bill, or in the lack of said bill. A person can save and even earn money with the installation of such a system; however, it is the energy independence that many feel to be the most rewarding benefit. Imagine never worrying about an electric bill. Now, imagine receiving a check from the electric company. All this and all the modern conveniences that electricity supplies.It costs nothing to operate a wind turbine, but fuel costs and electric bills steadily grow more expensive. The expense of installing and setting up a turbine is falling steadily as demand rises and technology improves. Many people have other reasons for desiring to be energy independent. These reasons can be anything from political fears such as terrorist _strikes on oil fields and power grids, the desire to for a cleaner environment or the desire to live in a remote location without having to live without electricity and all it provides. Many states provide homeowners that remain on the grid but use wind energy or other forms of alternative energy rebates or tax breaks from their respective state governments. These rebates can cover as much as 50% of the total cost of a green energy system. Additionally, 35 states allow homeowners to sell any unused energy they produce to the local power company under what are known as net metering laws. These laws ensure that the individual gets paid standard retail rate for the energy they sell to the power company. Homeowners can actually profit from producing their own energy.It is becoming a battle between lawmakers and power companies. Federal lawmakers are trying to require tax breaks and other wind power incentives in all 50 states. Some countries, among these are Japan and Germany, already have national incentive programs. The power companies do not feel they need to pay retail rates to private individuals. The shortsightedness of the power companies is apparent when they seem more worried about short term profit loss than the benefits provided from the increased use of wind turbines or wind farms. Head of the Center for Energy Efficiency and Renewable Technologies of California V. John White points out, “It's quality power that strengthens the grid.”
A Bridge To The Future: Pickens Plan
A replacement for foreign oil, T. Boone Pickens plan can be a bridge to the future. The United States is addicted to foreign oil and its economy is threatened by the millions of barrels of oil imported every year is the belief of Boone Pickens. Foreign oil supplied 24% of the United States oil in 1970. 70% of oil used in the United States will be derived from foreign sources.The world’s oil production reached its apex in 2005, and is now on a downhill slide. The United States uses nearly 25% of world oil production totals. Addiction is the correct term, the citizens of the United States clearly are apathetic to the rise of price of oil. Which it does; without any the influence of peripheral factors, such as increase in demand. The citizens of the United States need to become more aware of the situation, as it is now becoming evident it is quickly developing into a downward spiral. The fact of the matter is, cheap and easy oil is gone.Pickens own statement may very well be the foundation for his plan. “The United States is the Saudi Arabia of wind power.” Indeed, if this is the case, the United States’ dependence on foreign oil should be easy to break. The Great Plains states contain the greatest wind energy potential in the world, by far.Pickens plan is to reduce our dependence on foreign oil by instituting wind power for the mass production of electricity. This would free natural gas resources to power vehicles. This is a simplification of the Pickens plan, however it is plainly recognizable, that it could work. And in a relatively short time span.At this point a 3 MegaWatt wind turbine can produce as much electricity in one year as 12,000 barrels of oil. This is a amazing number. Even more impressive when realized that wind energy is free and self replenishing. Obviously, wind power can produce sizable quantities of electricity.Pickens plan is also beneficial for the environment. Greenhouse gas emissions will be greatly reduced with the implementation of Pickens plan. This may bring about lower air temperatures, which would lower the demand for electricity to energize air conditioning systems. Truly, Pickens plan is multi-faceted, with benefits not to be realized until actual implementation begins.
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