You've probably heard a lot about solar energy and how efficient it is. Moreover, over the last few years, there have been several moves to see how effectively we can use solar power in an attempt to alleviate the energy crisis that the world faces. So, how does using solar energy fit into the bigger picture of protecting our environment? The point is that even small changes in the way we do things go a long way in terms of saving our environment.
Solar energy is a renewable energy source
The sun offers us a great source of renewable energy; it's been around for over four billion years and is likely to stay around for another five billion years, during its life it will supply us with a steady stream of energy. So, apart from the obvious fact of solar energy is in abundance, people who are environmentally conscious find that using solar energy is an excellent way to help protect the environment.
But what makes solar energy an attractive option is the fact that unlike polluting fossil fuels, its availability is not governed by the oil industry, an industry that is riddled with capitalistic individuals, and influenced heavily by several geographic and political factors that invariably affect the supply.
Solar Energy on the other hand is a clean environmentally friendly energy resource and a very viable alternative to existing fossil fuels that pollute our lands, water and air, threaten our health, and contribute substantially to global warming.
Solar energy transformed into thermal (or heat) energy can be used to:
* Cook food – Using Solar Cookers
* Heat water – in Houses, Office Buildings, or Swimming Pools.
* Heat closed spaces – a Greenhouse, a House or even other Buildings.
Solar energy can also be converted to electricity by using:
* Photovoltaic devices or "solar cells" that transforms sunlight into electricity. These systems are often used in areas with no regular electricity supply. Some common devices that are sometimes powered by these solar cells include, street lights, road signs and some gadgets like watches and even calculators.
* Solar Power Plants are electricity generating plants that use thermal energy obtained from the suns radiation to super heat liquids that in turn become steam and rotate the turbines of a generator to generate electricity.
How can solar power rescue the environment?
For starters, switching over to solar power would help cut back our dependence on organic fuels. This in itself is a huge saving, reduced hydrocarbons and emissions in the air, mean fresh cleaner air. Some ripple down effects would be, controlling the global warming, less acid rain, no smog the list can go on and on, however, let me elaborate some of the better know environmental benefits.
Decrease air pollution
The most commonly obvious benefit is the fact that by using solar energy we are able to reduce the levels of pollution. As we reduce the amount of fossil fuels being burnt and switch over instead to solar power from our needs there is a corresponding decrease in the amount of pollution produced. Solar electrification in some rural areas also decreases the dependence of the electricity grid and generators that run on petrol or diesel.
Offsets greenhouse gases
Solar Cell (PV systems) generates electricity with absolutely no carbon dioxide (CO2) emission. This in turn plays a significant step in reducing the overall greenhouse effect that we face. Apparently studies show that approximately six tons of carbon emissions are offset through the use of a single Solar cell over a period of twenty five years.
Conserve energy
The world over, and especially the third world countries have begun to embrace the conservation and use of solar electricity through several conservations programs to help conserve power for urban areas, city lighting as well as commercial and industrial needs. While solar plants and other forms of decentralized solar generated energy is used to serve the basic power consumption needs in the majority of the developing areas.
Reduces discarding dry cell batteries
People in several countries around the world rely heavily on the use of small dry-cell batteries for various gadgets, like flashlights and radio’s. These batteries are primarily composed of lead acid and sometimes other materials that can be toxic to us. When the battery is improperly disposed off, they start leaking; toxic chemical contents seep into the surroundings and contaminate the soil, water or air around it. By switching over to the use of solar energy the dependence on dry cells batteries reduces drastically and consequently all issues associated with its disposal.
Low cost energy alternative
Using solar energy at home substantially reduces the need for dependence on electricity or gas. Solar panels placed on your roof top collect the solar energy and store them away in batteries for later use. This power can be used to power up lights around the house in the evenings or when it is dark. Solar thermal converts can be used to heat water that or even your home again offering substantial savings on those fronts. Solar cooking ovens could be used during the day for baking and cooking meals.
The use of "Solar Energy", a fresh, clean, free and abundant source of renewable energy will over the course of time reduce our dependence on other sources of energy that aren’t as helpful to our environment. If you want to make a difference to the world you live in, this is a wonderful place to start.
Wednesday, March 17, 2010
Solar Panels
A solar panel is basically a device that enables the collection of and conversion of solar energy into electrical energy or even heat.
The Concept of Solar Panels
Solar panels are also known as photovoltaic panels and the atoms that are present in these panels are excited by the action of the sun's energy. These atoms are present in a silicon layer that lies between two panels known as protector panels.
A formation of electric current takes place as a result of the action of the electrons from the aforementioned, excited atoms, and these are then used by a myriad of external devices. The history of solar panels dates back by hundreds of years, when their sole purpose was to heat the water for use in homes. Many-a-times specially shaped mirror is used for the concentration of light onto a tube of oil. Due to this action, there is a heating up of oil and as these heated oil travels through a vat of water, it instantly results in the boiling of this water. The steam that is a resultant of this process of boiling is used to turn a turbine for the generation of electricity.
The History of Solar Panels
It was in the year 1839 that the photovoltaic effect was discovered by Antoine – Cesar – Becquerel, a French physicist. His experiment in this regard involved the placement of an electrolyte cell in an electrolyte solution; two metal electrodes made up the electrolyte cell.
When this device was exposed to sunlight, Becquerel found that the generation of electricity saw a marked increase. It was in 1883 that Charles Fritts coated sheets of selenium with a thin layer of gold and built the first genuine solar cell. Over a period of time many experiment were conducted and discoveries were made when it came to solar cells. Albert Einstein also published his thesis on the photoelectric effect, during this time and also won the Nobel Prize for his research.
It was space satellites that made large scale use of solar electrical energy for the first time. By 1980, the United States of America, produced a solar cell which provided an efficiency of nearly twenty percent, this efficiency was increased to around twenty four percent in the next two decades and currently there are a few companies that are manufacturing solar cells that offer efficiency levels of nearly twenty eight percent
The Working of Solar Panels
Pure silicon forms the basic element of all solar panels as its makes for an ideal platform that aids transmission of electrons. This material is used on the plates that form a solar panel. Solar panels are also created by combining silicon panels with other elements, with negative or positive charges.
The Silicon atoms are exposed to the bombardment of photons when negative plates of solar cells are faced towards the sunlight. Once all free electrons are drawn away from the plates, enough electricity is generated to power various electronic appliances that do not require too much electricity to power them.
Features and Types of Solar Panels
Basically there are three types of solar panels, namely mono-crystalline solar panels, polycrystalline solar panels, and amorphous solar panels. The life expectancy of solar panels depends on the type of solar panels selected by you; generally it’s around twenty years or so.
Solar panels do not require sustained maintenance for their upkeep although; if lead acid batteries are used then they must be checked every six months and topped up with distilled water if required. If you are looking for a solar panel for your needs and do not know what size to go for, then the best way would be to calculate your average consumption of electricity on a daily basis. This would give you a fair idea of what kind of solar panel to go for. In the long run, solar panels will reduce your electricity bill by a long way, and hence the option of using solar energy must be explored in a positive manner.
The Concept of Solar Panels
Solar panels are also known as photovoltaic panels and the atoms that are present in these panels are excited by the action of the sun's energy. These atoms are present in a silicon layer that lies between two panels known as protector panels.
A formation of electric current takes place as a result of the action of the electrons from the aforementioned, excited atoms, and these are then used by a myriad of external devices. The history of solar panels dates back by hundreds of years, when their sole purpose was to heat the water for use in homes. Many-a-times specially shaped mirror is used for the concentration of light onto a tube of oil. Due to this action, there is a heating up of oil and as these heated oil travels through a vat of water, it instantly results in the boiling of this water. The steam that is a resultant of this process of boiling is used to turn a turbine for the generation of electricity.
The History of Solar Panels
It was in the year 1839 that the photovoltaic effect was discovered by Antoine – Cesar – Becquerel, a French physicist. His experiment in this regard involved the placement of an electrolyte cell in an electrolyte solution; two metal electrodes made up the electrolyte cell.
When this device was exposed to sunlight, Becquerel found that the generation of electricity saw a marked increase. It was in 1883 that Charles Fritts coated sheets of selenium with a thin layer of gold and built the first genuine solar cell. Over a period of time many experiment were conducted and discoveries were made when it came to solar cells. Albert Einstein also published his thesis on the photoelectric effect, during this time and also won the Nobel Prize for his research.
It was space satellites that made large scale use of solar electrical energy for the first time. By 1980, the United States of America, produced a solar cell which provided an efficiency of nearly twenty percent, this efficiency was increased to around twenty four percent in the next two decades and currently there are a few companies that are manufacturing solar cells that offer efficiency levels of nearly twenty eight percent
The Working of Solar Panels
Pure silicon forms the basic element of all solar panels as its makes for an ideal platform that aids transmission of electrons. This material is used on the plates that form a solar panel. Solar panels are also created by combining silicon panels with other elements, with negative or positive charges.
The Silicon atoms are exposed to the bombardment of photons when negative plates of solar cells are faced towards the sunlight. Once all free electrons are drawn away from the plates, enough electricity is generated to power various electronic appliances that do not require too much electricity to power them.
Features and Types of Solar Panels
Basically there are three types of solar panels, namely mono-crystalline solar panels, polycrystalline solar panels, and amorphous solar panels. The life expectancy of solar panels depends on the type of solar panels selected by you; generally it’s around twenty years or so.
Solar panels do not require sustained maintenance for their upkeep although; if lead acid batteries are used then they must be checked every six months and topped up with distilled water if required. If you are looking for a solar panel for your needs and do not know what size to go for, then the best way would be to calculate your average consumption of electricity on a daily basis. This would give you a fair idea of what kind of solar panel to go for. In the long run, solar panels will reduce your electricity bill by a long way, and hence the option of using solar energy must be explored in a positive manner.
Bio-Fuels: The Fuel Of The Future
Biomass burning has an overall impact on the atmospheric chemistry as well as the climate. When there is a fire in the savannas, or tropical forests, or like the recent California fire, large quantities of particulate matter and trace gases are released.
Biomass fuel is also known as Bio-fuel. Bio-fuel is defined as liquid, solid or gaseous fuel that consists of biomass. Biomass fuels can be used for generating power and also for heating purposes.
Biomass fuels can help greatly in reducing the various greenhouse gas emissions and at the same time can increase energy security by being an alternative to fossil fuels. Today, you will find expansion of bio-fuel industries in Asia, Europe, and America.
Bio-fuels are most commonly used in automotive transport like the E10 fuel. They can easily be produced from any source containing carbon like plants. Biomass is mostly derived from living organisms, which includes animals, plants, and their by-products. Manure, crop residues and garden waste are some of the different sources of biomass. This is a renewable energy source that is associated to the carbon cycle as compared to various natural resources like coal, petroleum, and nuclear energy.
Some of the most popular agricultural products that are grown for the purpose of creating Bio-fuel in the United States are soybeans and corn while Europe uses wheat, rapeseed and sugar beet; sugar cane is grown in Brazil, Jatropha in India and palm oil in South-East Asia.
In the early part of 2007, Diversified Energy Corporation with the help of North Carolina State University (NCSU) geared itself for a breakthrough in biofuel technology, which has been named Centia. Centia has been positioned for producing military and commercial jet fuel and can even act as a biodiesel additive in cold or freezing weather. The process of developing Centia looks promising and is expected to deliver a high energy efficiency level that can be in excess of 85%.
There are a wide variety of scientific experiments being conducted, globally, to produce a viable bio-fuel that will be efficient and environmentally friendly. Scientists have started to look beyond the bio-fuels and started to work on the various byproducts of bio-fuel that can be used and even consumed as food in our daily lives.
Considered as an integral part of the green revolution, bio-fuels offer quite a few advantages over other fossil fuels like coal and petroleum. Bio fuels have the ability to recycle carbon dioxide with every growing season by getting it from the air to convert it into biomass. So unlike coal, which upon burning releases carbon, biomass in a way traps all the carbon that is in the air. This is an important aspect from the point of view of global warming because it doesn’t release any carbon components into the air. The biggest advantage over conventional fuel is that bio-fuel is renewable and hence they will not deplete the limited natural resources of our planet.
Common Biomass Fuels
Here is a list of some of the most common first generation Biomass fuels:
Vegetable oil
Vegetable oil is used for cooking food and also as a fuel. Vegetable oil is not high quality oil for fuel use but it is still used in older diesel engines, which are equipped with an indirect injection system.
In most of the cases, vegetable oil is used for manufacturing bio-diesel that is compatible with most of the diesel engines. It is normally blended with conventional diesel fuel for optimum efficiency.
Bio-diesel
Bio-diesel is one of the most common Bio-fuels in Europe. It is produced mainly from fats or oils using the process of trans-esterification. It is a liquid that has a similar composition like that of mineral diesel. The chemical name for bio-diesel is fatty acid methyl ester (FAME).
The oil is mixed with methanol or ethanol and sodium hydroxide, which initiates a chemical reaction to produce glycerol and bio-diesel (FAME). The process produces 1 part of glycerol per 10 parts of bio-diesel.
Bio-diesel is extensively used in diesel engines after it is blended with mineral diesel. Some countries like Germany have manufacturers Volkswagen, who provide a cover on their diesel engines as a part of their warranty for 100% bio-diesel use.
A majority of vehicle manufacturers still limit to use of 15% bio-diesel blended with mineral diesel. In some of the European countries, 5% bio-diesel blend is widely used and even available at gas stations
Bio-ethanol
Ethanol is one of the most common Bio-fuels across the world. It is also known as an alcohol fuel and is produced by fermenting sugars, which are derived from corn, wheat, sugar cane and sugar beet. The various production methods for ethanol are fermentation of the sugars, enzymatic digestion, distillation and drying.
The use of Ethanol has been widely seen in petrol engines where it replaces gasoline. Almost all the petrol engines in the world can run on 15% blends of bio-ethanol with gasoline.
With an eye on the diminishing natural resources, its time for us to usher in the bio-fuel era!
Biomass fuel is also known as Bio-fuel. Bio-fuel is defined as liquid, solid or gaseous fuel that consists of biomass. Biomass fuels can be used for generating power and also for heating purposes.
Biomass fuels can help greatly in reducing the various greenhouse gas emissions and at the same time can increase energy security by being an alternative to fossil fuels. Today, you will find expansion of bio-fuel industries in Asia, Europe, and America.
Bio-fuels are most commonly used in automotive transport like the E10 fuel. They can easily be produced from any source containing carbon like plants. Biomass is mostly derived from living organisms, which includes animals, plants, and their by-products. Manure, crop residues and garden waste are some of the different sources of biomass. This is a renewable energy source that is associated to the carbon cycle as compared to various natural resources like coal, petroleum, and nuclear energy.
Some of the most popular agricultural products that are grown for the purpose of creating Bio-fuel in the United States are soybeans and corn while Europe uses wheat, rapeseed and sugar beet; sugar cane is grown in Brazil, Jatropha in India and palm oil in South-East Asia.
In the early part of 2007, Diversified Energy Corporation with the help of North Carolina State University (NCSU) geared itself for a breakthrough in biofuel technology, which has been named Centia. Centia has been positioned for producing military and commercial jet fuel and can even act as a biodiesel additive in cold or freezing weather. The process of developing Centia looks promising and is expected to deliver a high energy efficiency level that can be in excess of 85%.
There are a wide variety of scientific experiments being conducted, globally, to produce a viable bio-fuel that will be efficient and environmentally friendly. Scientists have started to look beyond the bio-fuels and started to work on the various byproducts of bio-fuel that can be used and even consumed as food in our daily lives.
Considered as an integral part of the green revolution, bio-fuels offer quite a few advantages over other fossil fuels like coal and petroleum. Bio fuels have the ability to recycle carbon dioxide with every growing season by getting it from the air to convert it into biomass. So unlike coal, which upon burning releases carbon, biomass in a way traps all the carbon that is in the air. This is an important aspect from the point of view of global warming because it doesn’t release any carbon components into the air. The biggest advantage over conventional fuel is that bio-fuel is renewable and hence they will not deplete the limited natural resources of our planet.
Common Biomass Fuels
Here is a list of some of the most common first generation Biomass fuels:
Vegetable oil
Vegetable oil is used for cooking food and also as a fuel. Vegetable oil is not high quality oil for fuel use but it is still used in older diesel engines, which are equipped with an indirect injection system.
In most of the cases, vegetable oil is used for manufacturing bio-diesel that is compatible with most of the diesel engines. It is normally blended with conventional diesel fuel for optimum efficiency.
Bio-diesel
Bio-diesel is one of the most common Bio-fuels in Europe. It is produced mainly from fats or oils using the process of trans-esterification. It is a liquid that has a similar composition like that of mineral diesel. The chemical name for bio-diesel is fatty acid methyl ester (FAME).
The oil is mixed with methanol or ethanol and sodium hydroxide, which initiates a chemical reaction to produce glycerol and bio-diesel (FAME). The process produces 1 part of glycerol per 10 parts of bio-diesel.
Bio-diesel is extensively used in diesel engines after it is blended with mineral diesel. Some countries like Germany have manufacturers Volkswagen, who provide a cover on their diesel engines as a part of their warranty for 100% bio-diesel use.
A majority of vehicle manufacturers still limit to use of 15% bio-diesel blended with mineral diesel. In some of the European countries, 5% bio-diesel blend is widely used and even available at gas stations
Bio-ethanol
Ethanol is one of the most common Bio-fuels across the world. It is also known as an alcohol fuel and is produced by fermenting sugars, which are derived from corn, wheat, sugar cane and sugar beet. The various production methods for ethanol are fermentation of the sugars, enzymatic digestion, distillation and drying.
The use of Ethanol has been widely seen in petrol engines where it replaces gasoline. Almost all the petrol engines in the world can run on 15% blends of bio-ethanol with gasoline.
With an eye on the diminishing natural resources, its time for us to usher in the bio-fuel era!
Why Use Solar Power. Some Great Reasons
Water runs dark, trees are dying and the air we breathe gets thicker and thinker by the moment. There are several solutions to these problems, but oddly, the source that got the whole thing going may actually be the answer to solving the poor choices made for the planet. Solar power got the entire process going and may be the solution to getting it back on track.
In its intentional use, solar power gave us heat and light. As evolution worked its magic solar power was not an alternative source of power, it was –the- source of power as it warmed the earth and moved the air. Now, our “modern” technology has evolved to a point where we can once again use solar power to warm and move our air. But why should we use solar power when the same planet that gave us the sun gave us the coal to accomplish the same task? There are many reasons, and most of them are of the kind that people can identify with; they are self serving and entirely hedonistic.
Solar leads to cost savings
All one has to do these days is open up an electric and heat bill to see how much it costs to heat and light your home. Solar power is a great way to just about eliminate the costs associated with lighting and heating your home. For those that are using solar powered heating and lighting equipment today there is little if any cost associated with heating and lighting their homes. Yes, there is an up-front cost to installing these units but pay back times through cost savings and tax credits are getting shorter and shorter due to better technology and awareness. These current users report that they actually make money from using solar power systems just by paying a little closer attention to how they use the power that they have. For the most part, they indicate that a 30 second glance at back-up batteries for piece of mind is all the extra time required to start saving money.
Money maker
Some may say that piece of mind doesn't go very far when it comes to a series of cloudy days. Batteries, they say, can run out or get low. From all reports, however, cloudy day issues, in a majority of the world’s climates, are not an issue. In fact, a majority of users find that they have an excess of electricity that ends up just going to waste. Or so most people- once - thought. Although the entire US is not quite there yet most sates require that utilities buy back excess power generated from those desiring to remain on the power grid. Although it may sound a bit odd, solar power users find that their electric meters actually run backward quite a bit of the time when solar power systems are in use. God forbid there were a few weeks of nothing but clouds and cold, but if there are the owner is free to use the power that they sold back to the utility. Past the home front, add a water wheel and a wind mill and you have a nice little income generator with the electric utility paying you.
Off the grid
There is a certain segment of the population that just does not want to be connected to the “grid”, as the power and information society calls it. For these people solar power is a great option. Solar units are fairly low cost and getting lower cost every day. They can also withstand a 1” hailstone traveling at 50mph. For survivalists or even for a farmer that needs to irrigate his crops in the middle of nowhere, solar is the way to go.
Develop a new technology
Man at his basic is a curious being. What if? Is always being thought about whether it’s just a casual thought during the day or figuring out how to get to Mars. Advancing technology is just who man is. Using solar may satisfy our current environmental issues but it also satisfies our intellectual needs. If solar power isn’t used it won’t advance and our need to know won’t be satisfied. Intellectually, solar is a great idea.
Leave the world a better place
Throughout time man has found a way to screw up the planet in one way or another. Most of the time, man has screwed up because of ignorance or with good intentions. Using solar, at the moment, appears to be one of those good intentions. It may end up being a bad thing 200 years down the road, but for now, it may be one of the only ways to leave the world a little better then when we got here.
In its intentional use, solar power gave us heat and light. As evolution worked its magic solar power was not an alternative source of power, it was –the- source of power as it warmed the earth and moved the air. Now, our “modern” technology has evolved to a point where we can once again use solar power to warm and move our air. But why should we use solar power when the same planet that gave us the sun gave us the coal to accomplish the same task? There are many reasons, and most of them are of the kind that people can identify with; they are self serving and entirely hedonistic.
Solar leads to cost savings
All one has to do these days is open up an electric and heat bill to see how much it costs to heat and light your home. Solar power is a great way to just about eliminate the costs associated with lighting and heating your home. For those that are using solar powered heating and lighting equipment today there is little if any cost associated with heating and lighting their homes. Yes, there is an up-front cost to installing these units but pay back times through cost savings and tax credits are getting shorter and shorter due to better technology and awareness. These current users report that they actually make money from using solar power systems just by paying a little closer attention to how they use the power that they have. For the most part, they indicate that a 30 second glance at back-up batteries for piece of mind is all the extra time required to start saving money.
Money maker
Some may say that piece of mind doesn't go very far when it comes to a series of cloudy days. Batteries, they say, can run out or get low. From all reports, however, cloudy day issues, in a majority of the world’s climates, are not an issue. In fact, a majority of users find that they have an excess of electricity that ends up just going to waste. Or so most people- once - thought. Although the entire US is not quite there yet most sates require that utilities buy back excess power generated from those desiring to remain on the power grid. Although it may sound a bit odd, solar power users find that their electric meters actually run backward quite a bit of the time when solar power systems are in use. God forbid there were a few weeks of nothing but clouds and cold, but if there are the owner is free to use the power that they sold back to the utility. Past the home front, add a water wheel and a wind mill and you have a nice little income generator with the electric utility paying you.
Off the grid
There is a certain segment of the population that just does not want to be connected to the “grid”, as the power and information society calls it. For these people solar power is a great option. Solar units are fairly low cost and getting lower cost every day. They can also withstand a 1” hailstone traveling at 50mph. For survivalists or even for a farmer that needs to irrigate his crops in the middle of nowhere, solar is the way to go.
Develop a new technology
Man at his basic is a curious being. What if? Is always being thought about whether it’s just a casual thought during the day or figuring out how to get to Mars. Advancing technology is just who man is. Using solar may satisfy our current environmental issues but it also satisfies our intellectual needs. If solar power isn’t used it won’t advance and our need to know won’t be satisfied. Intellectually, solar is a great idea.
Leave the world a better place
Throughout time man has found a way to screw up the planet in one way or another. Most of the time, man has screwed up because of ignorance or with good intentions. Using solar, at the moment, appears to be one of those good intentions. It may end up being a bad thing 200 years down the road, but for now, it may be one of the only ways to leave the world a little better then when we got here.
Wind Power Advantages
Sometimes when the electricity supply goes off unexpectedly due to a power cut it can last for several days. Having no hot water, no cooking facilities, a lack of refrigeration and no form of heating or lighting are just some of the inconveniences incurred. Power grid independence is only one of the many reasons to consider installing wind power preventing you from becoming solely reliant on the electricity companies.
Installing wind power will allow you to be in charge or your own environment. The problems experienced by others through the failure of mainstream electricity supplies will not affect you. In fact, you may not even be aware that anyone else is having difficulties until they contact you asking for your assistance as they are suffering in either hot or freezing conditions!
Another great benefit of wind power is the rebate offered by many states for people who are willing to install wind generators in their homes. In overall terms it is likely to take up to ten years or maybe a little more to see the monetary benefits of having the original installation carried out, but from that time onwards the best part of your power will be free. Just imagine the fact that the running costs of your home or business, or even both, can be reduced to practically nothing. This is because your meter will slow down considerably as your wind power equipment kicks in, thereby reducing your supply from the grid.
This low usage from the grid will be maintained until such a time that the wind is not strong enough to produce power and you will then notice your meter speed up again whilst power is being drawn from the grid supply. In California, if you have wind power within your home, it can in reality replace power back into the grid, so your meter will go backwards; in effect giving you credited power to use in the future. This or similar systems may be introduced in other states in the near future, thus expanding the advantages of wind power more widely.
Although wind power is not perfect, it is a safe and honest cost effective plan for the time ahead of your family and country. Take a minute to sit down and work out just how much you expect your power bills to cost you for the rest of you and your children’s lives. Make a comparison with that of a wind power supply and the benefits will be clear to you. Even if you feel having wind power installed is an expense you just cannot afford at the minute, it may be worth considering taking out a loan as the savings you are likely to make will be more than adequate to repay the amount you have borrowed. Make sure you check out the information available about which schemes are on offer to you.
Installing wind power will allow you to be in charge or your own environment. The problems experienced by others through the failure of mainstream electricity supplies will not affect you. In fact, you may not even be aware that anyone else is having difficulties until they contact you asking for your assistance as they are suffering in either hot or freezing conditions!
Another great benefit of wind power is the rebate offered by many states for people who are willing to install wind generators in their homes. In overall terms it is likely to take up to ten years or maybe a little more to see the monetary benefits of having the original installation carried out, but from that time onwards the best part of your power will be free. Just imagine the fact that the running costs of your home or business, or even both, can be reduced to practically nothing. This is because your meter will slow down considerably as your wind power equipment kicks in, thereby reducing your supply from the grid.
This low usage from the grid will be maintained until such a time that the wind is not strong enough to produce power and you will then notice your meter speed up again whilst power is being drawn from the grid supply. In California, if you have wind power within your home, it can in reality replace power back into the grid, so your meter will go backwards; in effect giving you credited power to use in the future. This or similar systems may be introduced in other states in the near future, thus expanding the advantages of wind power more widely.
Although wind power is not perfect, it is a safe and honest cost effective plan for the time ahead of your family and country. Take a minute to sit down and work out just how much you expect your power bills to cost you for the rest of you and your children’s lives. Make a comparison with that of a wind power supply and the benefits will be clear to you. Even if you feel having wind power installed is an expense you just cannot afford at the minute, it may be worth considering taking out a loan as the savings you are likely to make will be more than adequate to repay the amount you have borrowed. Make sure you check out the information available about which schemes are on offer to you.
Tuesday, March 16, 2010
Wind Farm Efficiency
Wind power is the process by which wind is used to generate power or electricity. The power of the wind is actually a form of solar power – wind change and variability is caused by uneven heating of the ground by the sun. In order to fully use the power that the wind is capable of generating, many countries have set up wind farms. In a wind farm, many different wind turbines (a structure that uses a propeller-like blade to take in the wind's power) are set up in an area. With all the wind turbines working at the same time, it's thought that these farms are a great way to produce large amounts of electricity.
To determine the efficiency of wind farms, you need to know how a wind farm works. The wind turbines collect the power of the wind in two steps: the propeller blades are turned by the gusts of wind, and the propeller then turns a shaft. This turning shaft is connected to a generator. The spinning action cranks the generator, which then produces electricity. The process is exactly like hydropower, but with wind acting as the energy source instead of flowing water. Just one wind turbine set up in an area will not produce very much electricity, and is not very good for powering large areas - these small turbines are usually used to power just one farm or house or occasionally to pump water.
Wind farms, on the other hand, are more powerful because there is a large grouping of the wind turbines in one area, all working in unison to produce electricity. The energy can then be run to whole communities through existing utility grids or stored in battery-like storage cells. Wind turbines can be set up to face the wind or face away from the wind. Modern wind turbines can also turn to catch the wind as it gusts from different angles, a factor which makes them far more efficient than before. The larger the turbine's blades and the taller the turbine's height will increase the efficiency as well.
The exact efficiency of wind farms is nearly impossible to pinpoint. The problem is found in the factors that go into the analysis. The terrain, amount of wind, size of turbines and so on varies from wind farm to farm. There is no constant, which makes it difficult to nail down general efficiency ratings. In general, a single wind turbine will convert about 20 percent of the energy in wind to electricity. The most efficient production occurs between five and 20 miles an hour of wind speed. This general 20 percent efficiency rating is roughly seven to five percent more efficient than solar power, but sunlight is constant whereas wind is not.
While wind technology has not yet progressed to a point where no energy is lost while harnessing it, it is fair to say that the platform is favorable compared to other renewable sources. It may take a while for the whole world to catch on to using the power of the wind, but it's definitely fast becoming an important alternative energy source. Countries such as Germany are certainly investing a lot into the platform.
For more information on wind energy, check out Wind Tech Research.
To determine the efficiency of wind farms, you need to know how a wind farm works. The wind turbines collect the power of the wind in two steps: the propeller blades are turned by the gusts of wind, and the propeller then turns a shaft. This turning shaft is connected to a generator. The spinning action cranks the generator, which then produces electricity. The process is exactly like hydropower, but with wind acting as the energy source instead of flowing water. Just one wind turbine set up in an area will not produce very much electricity, and is not very good for powering large areas - these small turbines are usually used to power just one farm or house or occasionally to pump water.
Wind farms, on the other hand, are more powerful because there is a large grouping of the wind turbines in one area, all working in unison to produce electricity. The energy can then be run to whole communities through existing utility grids or stored in battery-like storage cells. Wind turbines can be set up to face the wind or face away from the wind. Modern wind turbines can also turn to catch the wind as it gusts from different angles, a factor which makes them far more efficient than before. The larger the turbine's blades and the taller the turbine's height will increase the efficiency as well.
The exact efficiency of wind farms is nearly impossible to pinpoint. The problem is found in the factors that go into the analysis. The terrain, amount of wind, size of turbines and so on varies from wind farm to farm. There is no constant, which makes it difficult to nail down general efficiency ratings. In general, a single wind turbine will convert about 20 percent of the energy in wind to electricity. The most efficient production occurs between five and 20 miles an hour of wind speed. This general 20 percent efficiency rating is roughly seven to five percent more efficient than solar power, but sunlight is constant whereas wind is not.
While wind technology has not yet progressed to a point where no energy is lost while harnessing it, it is fair to say that the platform is favorable compared to other renewable sources. It may take a while for the whole world to catch on to using the power of the wind, but it's definitely fast becoming an important alternative energy source. Countries such as Germany are certainly investing a lot into the platform.
For more information on wind energy, check out Wind Tech Research.
LEDs ...The Technology That Will Soon Light Our Planet
With energy waste on the minds of many Americans these days, high gasoline prices to run the inefficient engines that power our vehicles help move the majority of us to cut energy costs in as many areas as possible, some of us are even beginning to ration our lighting usage. Is there an answer to our increasing lighting costs ? Granted, much of the cost is being passed on by the utility suppliers and with recent increases in oil prices, this amount is being noticeably felt in each of our monthly utility budgets. Energy costs are governed by the varying costs of fuel and with our major source of lighting today being the incandescent light, our lighting bill is much too high. Is there a developing technology today that shows a promising hope for our immediate future ?
We must roll back about 35 years and refresh ourselves some history when a small pea size lamp was introduced to the America's. It was the Light Emitting Diode, more popularly known as the LED, a lighting source that emitted light through a clear molded plastic housing using a small current flow between two solid state junctions that were extended to facilitate an electrical connection. At the time of its introduction, the LED did not emit very much light, as a matter of fact in normal daylight, some were barely visible. At the time of its release to the world, the LED efficiency to produce light was very low. In the early days of the LED development, their use was fairly limited and sold for use on instrument panels where light intensity was not an issue. It would take the better of 20 years of gradual development before they began to find their way into the main stream of use in areas where contemporary lighting was truly dominant. The LED would eventually begin to show its uniqueness for applications in our lighting world.
The LED found its prime application in our traffic lighting system in the late 1990's, where it began to replace the totally dominant use of the incandescent lamp that had been used for decades and since the inception of the system. Soon, LEDs were replacing the original incandescent lamps in many parts of the world. The electric power energy savings have been extremely high...in a few cases an average of 90 %. We must also keep in mind that there is also the ongoing savings from a much lower upkeep because the LEDs will last as much as ten years(when running 24/7). LEDs will not shatter under high vibration as do the incandescent lamps, negating their need for replacement from these causes of failure. With much of the world looking for ways to save our remaining fossil fuels, this lighting source has the definite ability to show us the way. We could say, "what about the CFL(fluorescent) lamp ?" Couldn't they become our knight in shining armor? The question ? Can the CFL emit an infinite number of colors ? Negative...and they are far from shatterproof. Their longevity is also several times less than the LED.
Having praised the LED for just a few of its merits, it can be seen that it is totally practical for the world's present needs and many believe all our needs in this field in the years to come. Even in its present stage of development, It is well suited to lessen our present energy consumption overload. At the present time, the nations of the world must adopt methods of lighting which are the most efficient to lower energy use, but unless the consumer follows this same trend, our nation and the world's efforts will be in vain.
We must roll back about 35 years and refresh ourselves some history when a small pea size lamp was introduced to the America's. It was the Light Emitting Diode, more popularly known as the LED, a lighting source that emitted light through a clear molded plastic housing using a small current flow between two solid state junctions that were extended to facilitate an electrical connection. At the time of its introduction, the LED did not emit very much light, as a matter of fact in normal daylight, some were barely visible. At the time of its release to the world, the LED efficiency to produce light was very low. In the early days of the LED development, their use was fairly limited and sold for use on instrument panels where light intensity was not an issue. It would take the better of 20 years of gradual development before they began to find their way into the main stream of use in areas where contemporary lighting was truly dominant. The LED would eventually begin to show its uniqueness for applications in our lighting world.
The LED found its prime application in our traffic lighting system in the late 1990's, where it began to replace the totally dominant use of the incandescent lamp that had been used for decades and since the inception of the system. Soon, LEDs were replacing the original incandescent lamps in many parts of the world. The electric power energy savings have been extremely high...in a few cases an average of 90 %. We must also keep in mind that there is also the ongoing savings from a much lower upkeep because the LEDs will last as much as ten years(when running 24/7). LEDs will not shatter under high vibration as do the incandescent lamps, negating their need for replacement from these causes of failure. With much of the world looking for ways to save our remaining fossil fuels, this lighting source has the definite ability to show us the way. We could say, "what about the CFL(fluorescent) lamp ?" Couldn't they become our knight in shining armor? The question ? Can the CFL emit an infinite number of colors ? Negative...and they are far from shatterproof. Their longevity is also several times less than the LED.
Having praised the LED for just a few of its merits, it can be seen that it is totally practical for the world's present needs and many believe all our needs in this field in the years to come. Even in its present stage of development, It is well suited to lessen our present energy consumption overload. At the present time, the nations of the world must adopt methods of lighting which are the most efficient to lower energy use, but unless the consumer follows this same trend, our nation and the world's efforts will be in vain.
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