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.
Showing posts with label energy. Show all posts
Showing posts with label energy. Show all posts
Wednesday, March 17, 2010
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.
Future Energy Concepts – The Fuel Cell
Future Energy Concepts – The Fuel Cell
A fuel cell is a fairly vague phrase thrown around by those in the know and those that know relatively little. Regardless of the particular design, a fuel cell is essentially a cell similar to a battery in which a chemical process occurs to produce electricity. In this case, however, the fuel is hydrogen. The basic idea is to combine hydrogen with oxygen in a process that produces electricity. This electricity is then used as we would normally use it in our lives.
If you read the paper or watch the news, one would think the concept of hydrogen fuels in a new one. In fact, it is not. The first one was created in 1839. The problem, of course, was it was inefficient and there wasn’t much interest since fossil fuels were plentiful and our energy needs were tiny compared to today. It wasn’t until the 1960s that much interest was shown in the energy platform. As with many advances, NASA decided to use fuel cells to power the Gemini and Apollo spacecrafts. Unfortunately, the trick has been translating this limited use to wide spread applications in daily life.
A common misconception is a fuel cell represents renewable energy. Very clearly, it does not. It is a device, not an energy platform. It is like saying a hydroelectric dam is a renewable energy. The dam is a machine to harness a renewable energy resource, but not an energy source in and of itself. The fuel cell works much the same way. It is a methodology for harnessing energy from hydrogen. The particular method can be clean or dirty, to wit, one can use water or coal for the base material. Obviously, coal is not much help.
Fuel cells can be run, in theory, on any material containing hydrogen. This means renewable energy sources such as hydrogen, biogas, and so on. The primary goal is to focus on water and other renewable sources because of their inherent clean advantages. When hydrogen is used, for instance, it produces no tangible pollution or greenhouse gases. The byproduct, instead, is simply water.
There are a few hurdles that must be overcome before hydrogen fuel cells really become a viable energy platform. First, the technology is such that the fuel cells are far too large and heavy to be used for practical purposes. The infamous hydrogen car is not currently viable because of this, although test cars from primarily German manufacturers are being evaluated. The second problem is efficiency, which is to say fuel cells are not. Currently, fuel cells produce energy at a cost of about 10 times that of fossil fuels, and that is a positive estimate. Again, not a viable option.
While these may seem like significant hurdles, they actually point to the viability of hydrogen fuel cells as a power source. These problems are focused on technical aspects of delivery, not on whether the process works. If there is anything we are good at as a species, it is making technological breakthroughs. If we can build a hydrogen nuclear weapon, surely we can build a hydrogen fuel cell.
For lots more information on an exciting new fuel cell technology, check out Bloom Box News.
A fuel cell is a fairly vague phrase thrown around by those in the know and those that know relatively little. Regardless of the particular design, a fuel cell is essentially a cell similar to a battery in which a chemical process occurs to produce electricity. In this case, however, the fuel is hydrogen. The basic idea is to combine hydrogen with oxygen in a process that produces electricity. This electricity is then used as we would normally use it in our lives.
If you read the paper or watch the news, one would think the concept of hydrogen fuels in a new one. In fact, it is not. The first one was created in 1839. The problem, of course, was it was inefficient and there wasn’t much interest since fossil fuels were plentiful and our energy needs were tiny compared to today. It wasn’t until the 1960s that much interest was shown in the energy platform. As with many advances, NASA decided to use fuel cells to power the Gemini and Apollo spacecrafts. Unfortunately, the trick has been translating this limited use to wide spread applications in daily life.
A common misconception is a fuel cell represents renewable energy. Very clearly, it does not. It is a device, not an energy platform. It is like saying a hydroelectric dam is a renewable energy. The dam is a machine to harness a renewable energy resource, but not an energy source in and of itself. The fuel cell works much the same way. It is a methodology for harnessing energy from hydrogen. The particular method can be clean or dirty, to wit, one can use water or coal for the base material. Obviously, coal is not much help.
Fuel cells can be run, in theory, on any material containing hydrogen. This means renewable energy sources such as hydrogen, biogas, and so on. The primary goal is to focus on water and other renewable sources because of their inherent clean advantages. When hydrogen is used, for instance, it produces no tangible pollution or greenhouse gases. The byproduct, instead, is simply water.
There are a few hurdles that must be overcome before hydrogen fuel cells really become a viable energy platform. First, the technology is such that the fuel cells are far too large and heavy to be used for practical purposes. The infamous hydrogen car is not currently viable because of this, although test cars from primarily German manufacturers are being evaluated. The second problem is efficiency, which is to say fuel cells are not. Currently, fuel cells produce energy at a cost of about 10 times that of fossil fuels, and that is a positive estimate. Again, not a viable option.
While these may seem like significant hurdles, they actually point to the viability of hydrogen fuel cells as a power source. These problems are focused on technical aspects of delivery, not on whether the process works. If there is anything we are good at as a species, it is making technological breakthroughs. If we can build a hydrogen nuclear weapon, surely we can build a hydrogen fuel cell.
For lots more information on an exciting new fuel cell technology, check out Bloom Box News.
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