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If you’re discussing just what alternative fuel is, there’re two basic definitions that you can utilize.

When you’re thinking in terms petroleum or fossil fuels such as coal or natural gas, alternative fuel would refer to some type of fuel that is different. A fuel is actually a way to store potential energy that is stable & also easily transported from its place of production to its place of use. Most fuels are potential sources of chemical energy that can be often used to power engines or heat buildings. Anything that fit that description & was not a standard form of fossil fuel would qualify as an alternative fuel.

When you think of fuel from an environmental point of view, alternative fuel more often refers to some renewable or sustainable source of power. This would be especially true of some fuel source that was thought to be ecologically benign. Uranium when used for a fuel for nuclear energy would fall into some middle ground depending on the mind set of the person providing the definition. While nuclear power is an alternative source of energy, it’s hard to consider uranium as neither a stable & easily transportable fuel nor one that is ecologically benign.

Regardless of the exact definition of alternative fuel, one thing is certain & that is there is an increasing demand to discover, develop, & put into common use alternative fuels. There is more. There’re many reasons why conventional fossil fuels are falling into disfavor as fuel sources. Clear? It’s these sources of unhappiness with fossil fuels that is causing this search for alternatives. One major complaint of fossil fuels is the idea of global warming caused by greenhouse gases released by the burning of these fuels.

There are also major concerns about the supply of fossil fuels & the fact that some experts predict that demand will outstrip supply within another decade. The fact that the volatile Middle East region is a major source of fossil fuels is another reason for a quest for alternatives. There is more. The desire for alternative fuels that are more environmentally friendly is being spurred by an increasing recognition of the problem of world wide pollution.

The bottom line here is that an alternative fuel is any fuel source that is different than what we have built our industrial & technological society on. This alternative might be something that is cleaner or it may be cheaper. It may be more readily available without stirring political unrest or unfairly enriching one region of the world at the expense of another. It may very well be something that has not yet been discovered or fully realized. The one certainty is that we will need fuel to provide power & heat.

Learn more about alternative fuel companies at AlternativeFuelCompanies.com

Bio fuels come from organic biological masses. There is more. This may include fuels that come from alcohol, as well as natural gases & oils. So… Some of them can be often used in cars & other engines that are combustion engines. Clear? It’s a renewable type of energy that may be an alternative to our current energy crisis. Many environmentalists believe that there needs to be radical changes in how we live to protect our environment.

Various fuels are used such as corn & sugar to make ethanol. These products are grown all over the world. Gasoline is made with ethanol & is mixed into petroleum gas to raise the amount of octane in gas so that it’s cleaner.

Methanol is also used in gasoline but is doesn’t burn as cleanly as ethanol. It can sometimes be toxic in high quantitles & it’s harmful to the environment. It can also be explosive. However, it’s still being considered as a resource for energy.

There are other alternatives being explored such as vegetable oil. Really! Biodiesel which is a vegetable based type of energy comes from plants. Clear? It’s somewhat more complicated then traditional vegetable oil but, it has similar qualities. So… Scientists are beginning to explore using oil as a type of fuel in mass quantities. Clear? It’s made by a process called transesterification whereby, fat is separated from oil. Europe currently sells biodiesel fuel.

It is a cleaner fuel & is biodegradable. Long term usage of this type of fuel may cause blocked fuel injectors so if you use this type of oil, the injectors will need to be cleaned out regularly. It can also be used to heat boilers in commercial boilers.

Biodisel doesn’t release carbon monoxides, It’s a cleaner & safer fuel. In 1990, it did pass testing for the government’s Clean Air Act. There’re no specialized storage units needed for biodiesel so it can be often used in conjunction with or separately from regular petroleum gas. Clear? It doesn’t require major engine modifications to use it.

There are some problems with biodiesel fuel such as it doesn’t perform well in cold climates. Clear? It also may form wax crystals which clog fuel lines. So… So autos driven in colder climates will have more problems with their engines than those running on petroleum gasoline.

At the very least, scientists are beginning to explore alternative ways of heating homes, keeping automobiles running & alternative forms of energy. Hopefully, this will reduce the amount of money it costs to run a car & to keep our homes heated. You would think with the number of scientists working on these complex problems over the years, we would be a little further ahead!

www.tellmeaboutalternateenergy.com brings you thought provoking information about alternate energy sources. There’s nothing to buy, just really help-ful information. Be sure to check out all the pages & decide for yourself. ? 2007 copyright © by DSquare Marketing & Della Franklin.

Alternative energy for vehicles has come a long way, but unfortunately we’re not yet at a point where we can go without gasoline. Hybrid cars, how ever, are the first step to the future.

Finding alternative energy for vehicles will eliminate the need to purchase oil from other countries. The less we need to depend on other countries for our transportation needs the better… It’s also a good way to be earth friendly because vehicles that use this technology will not emit pollutants into our atmosphere like gasoline powered vehicles do.

Our dependencies on other countries & the oil that they have along with the air pollution problem will fuel the search to find a alternative energy for vehicles that is user friendly. Most vehicles that utilize some of the alternative energies available today have their downfalls along with their specific benefits to our environment.

Electric vehicles use batteries that need to be recharged about every 150 miles. This can be time consuming as most batteries require four to eight hours of charging before you can hit the road again. Hybrid vehicles use the same method as the electric vehicles but they do not need to be plugged in to recharge. They recharge themselves by using regenerative braking & still have the power of a gasoline engine. The electricity used in a hybrid vehicle allows a smaller more efficient gasoline powered engine to be used & the electric is generated to add extra power to the motor when needed.

Alternative energy for vehicles has come a long way since the idea began when the first hybrid electric vehicle came onto the market. Advances in how alternative energy works in vehicles has been used to produce a fuel cell vehicle. Fuel Cell Vehicles are expected to be very popular & widely seen on our roads in the future.

New developments with fuel cell vehicles that are powered by pure hydrogen will change the way we look at alternative energy for vehicles. These vehicles will be powered by a certain form of hydropower. This means that they will produce no harmful air pollutants into our atmosphere like gasoline powered vehicles do. Instead, the waste from the production of electricity will be water. This, of course, represents a more than slight improvement over the carbon dioxide currently produced.

As new information is discovered about how pollutants have an affect on our atmosphere & the world around us, more people will consider owning a alternative energy vehicle. With the possibility of oil prices soaring in the near future, an alternative will be welcomed by most people who have the resources to purchase one of these alternative energy vehicles. Right. We are not yet at a point where we can have a true alternative energy vehicle, but it’s only a matter of improving the technology of batteries & such.

Read more about renewable energy at SolarCompanies.com

Wind energy is one of the oldest forms of non-animal generated power used by human beings; in its simplest form, it is used as a sail for a sailboat. In the Renaissance, wind power was harnessed for many more commercial applications by the use of wind mills to grind grain, & in the Netherlands, to run the pumps that keep the Zeuder Zee from flooding. Wind energy is getting a lot more attention now, concerns about the environmental impact of fossil fuels comes to public awareness, with concerns about global warming from CO2 emissions & nitrous oxide & sulfur emissions from coal. Furthermore, the global consensus is that we are at the point where fossil fuel prices are going to rise. While we are many centuries away from using our current coal & oil reserves, as the cost of extraction rises, the costs of energy will also rise.

As the costs of fossil fuel prices rises, the break even point for alternative energy sources such as wind & hydroelectric power make more economic sense. Furthermore, the environmental impact of wind energy is significantly less than the environmental impact of a coal or oil plant, & once the initial investment is paid out; there’re no ongoing fuel costs to concern one with.

The best economic argument for a wind energy collection facility is that it is a high up front cost, but lower average annual costs over its expected lifespan; in much the same way that it is best to pay a larger down payment to reduce your mortgage fees, the same logic applies to utility companies considering renewable resources.

From the consumer perspective, the best argument for using wind energy is that it is renewable. Nobody has to go straight to war to harness the wind, & it is not going to run out anytime soon. Secondarily, wind energy is zero emissions ? no carbon dioxide or nitrous oxides are released into the atmosphere; this is an important factor as concerns about global warming rise. Most utility companies with wind energy plants give you an option to take a certain percentage of your electric bill from wind energy for a premium price; this is sound ecological sense for most households.

The principal downfall to wind energy is that it only works where there’s wind blowing. Unlike a hydroelectric plant, you can not always rely on the wind blowing from the same direction with the same intensity, day in, day out. So it requires that the turbines be placed in an area where there’s reliable high wind, which usually means wide open plains or up on mountain tops, neither of which are convenient for wind energy in urban areas. This also encourages storage of power generated by wind energy for later use, allowing a store-and-release model that relies on better power storage densities.

For more information on wind energy resources visit http://www.energyresourcesnet.com/ or our Energy Blog.

Mention renewable energy & solar power is bound to come up. For most people, how ever, solar power is one thing. In reality, there’re two different approaches.

Green building is all about implementing environmental & energy efficient strategies into a structure. It can sometimes be done on a small scale such as heating a pool or a large scale such as when building a skyscraper in the heart of New York City. Regardless of the situation, solar power is one of the popular renewable energy platforms being used today.

When it comes to solar power, most people understand the basics. So… Sunlight is converted into energy. For most people, this means solar panels are used to generate electricity. You know, those panels on the top of homes around your neighborhood. In reality, there’re two different approaches to solar power. Both may be in your neighborhood, but one is hard to notice unless you know what you’re looking for.

Active solar power is a concept practically virtually everyone knows. There is more. This is the panel system. A set of panels is placed on a roof or backyard. The panels are made up of solar cells. There is more. The cells tend to have a silicone component in them. When sun light strikes the silicone, it causes a chemical reaction. An electron is shot off the silicon creating a charge. This charge is gathered by wires in the solar cell & sent down the line to an adapter. The adapter converts the energy from AC to DC. It’s then stored in a batter or fed into the electrical grid for your local utility company. Active solar power, how ever, isn’t the only game in town.

Passive solar is very popular in some parts of the country. Unless you have looked into what solar has to offer, you probably do not know about it… Passive solar involves no panel systems. There is more. There’re no batteries to be charged. Nothing is fed into the grid system for the local utility. Instead, passive solar is used for heating purposes.

Have you ever locked your car in mall parking lot on a hot summer day? What will happen when you open the door to get back in? A blast of furnace like heat comes rushing out when you open the door. When you sit down on the seat, the heat makes you do a little shuffling dance. This is the power of passive solar. The sun is used to heat structures.

Passive solar is a great way to heat a home. The idea is to position the home in such a way that the sun penetrates to the maximum extent possible through windows. Below the windows, you should install dark materials that absorb heat such as dark red bricks. During the day, the bricks heat up. As night falls, the bricks or other materials give off heat for hours to keep the home warm. Obviously, a full blown discussion of passive solar is a bit more complex, but this is the basic idea.

The next time some one mentions solar power to you, keep in mind there’re two distinct approaches to using the energy in sunlight. Both work well, but perform very different purposes.

Rick Chapo is with www.SolarCompanies.com - a directory of solar power articles.

Solar power is the main source of energy for the humane beings. Life on earth can not exist without solar energy. This energy is completely free for the human beings to consume & is also environmental friendly. Solar energy is now thought to be the biggest alternative of the current source of producing electricity. The main reason is that sources like burning fuel, coal, gas or nuclear energy to produce electricity is becoming expensive & also is very harmful to the environment. But solar energy on the other hand is completely free & very effective. And so… So far so good. We have only been able to harvest 1-3 percent of the solar energy that comes to the earth. If we look at the figures we find that.

1. The total amount of earth reserves responsible for producing energy are equivalent to only twenty days of sunlight.
2. 40 minutes of sun light if harvested completely can produce energy for the entire planet for a time period of 1 year.
3. We are only harvesting 2-3 % of this energy which is not very good.

Solar cells or photovoltaic cells are used to convert solar energy into electricity. These cells are basically made up of silicon alloys & are on panels which capture energy form the sun. sun light contains photons which when hit the surface of the cells gets reflected pr absorbed, these absorbed particles are the one responsible for providing you with the energy. When more photons hit the surface they allow the materials surface atoms to release electrons. Right. When these electrons leave there position they form a hole. And so… So far so good. When many electrons leave the surface, this creates a negative & positive voltage potential similar to that of the terminals of the battery. When this surface is connected with external devices they produce electricity.

Solar cells do not produce too much power out. These cells are connected to modules which form arrays. There is more. These arrays can be made up of ten or hundreds of modules each one producing a considerable amount of energy. There is no restriction on the amount of modules; you can connect as many as you want to according to your need. The performance of these modules depends upon the amount of sunlight, weather condition & location of the panels. There is more. The energy provided by these modules is in DC form & can only run small appliances but if you need more power than an inverter is connected to the modules which converts this DC power into AC power. Initially these cells were made to provide electricity in remote areas but now they’re even used for providing electricity to residential & commercial areas.

Solar cells are also long life lasting, having a low cost & are environmental friendly as they do not produce a by products. Use of solar power is also very effective way for generating electricity. You are using natural source of energy to fulfill you own needs. As time will pass solar power will become the main source of energy for the human beings.

Solar Power is a solution for your budget & the growing danger of global warming, learn more about Solar Energy at http://powersolarsystem.com

In the modern world there is hardly a house, a street, a business or a transport facility that doesn’t make use of electric lighting. Even though electricity is often seen as a panacea for all environmental ills, a lot depends on how the electricity is generated. Electricity generated by fossil fuels will still create carbon dioxide pollution. This is still a big advantage over petrol & diesel powered vehicles created noxious fumes in town & city centres, but the human race still needs to work towards generating electricity from renewable sources.

Lighting is by no means the heaviest user of electricity on an individual basis. But when you consider the sheer number of street lamps in a heavily populated city, it all adds up. If the power consumed by electric lighting could somehow be generated by a renewable source, the savings in polluting emissions would be considerable. As of now, the technology for street lighting powered by renewable sources isn’t yet commercially viable. But we’re getting there. Already, there’re many different types of solar powered light available for domestic gardens.

It has even been rumoured that the British Government had been considering dimming lights on British roads, even on motorways, in an attempt to save on electricity. This has not actually been implemented due to the reduced vision for drivers & the increased risk of accidents. It will be far better to create a lighting system, which will create the same amount of light, from a renewable source. Wind power would be a possibility on exposed motorways, as the noise factor will be of less importance on roads that are largely a long way from homes or workplaces. Solar energy how ever, is noise free. So it could be implemented on any roads, if the technology can be developed to produce the panels at a cost effective price.

An interesting example of solar powered lighting on a transport facility can be easily found on the railway stations of North Wales. The railway line that snakes around the Welsh coast comes out of Shrewsbury & many of the stations are only small village halts serving a very small number of people. These stations are largely unmanned & a source of lighting was needed that would require little maintenance. These stations in North Wales now have lamps that are attached to solar panels. The solar panels generate electricity - even in the cold, dull, cloudy climate of North Wales - & that electricity is then stored in a battery similar to a vehicle battery.

This Welsh experiment hopefully shows the way forward for solar powered lighting to become an ever more important part of the provision of public lighting. Of course, solar panels are used on the roofs of many homes, especially in climates such as California where there is an abundance of sunshine. The one problem with solar energy for lighting is that the power is generated at the time of day the light isn’t needed. This means that batteries are required to store the power until the nighttime when it’s needed. With the advances in fuel cell technology we’re seeing emerge in this decade, this should not actually be a problem. The future looks bright for solar powered lighting.

Michael Russell Your Independent guide to Lighting

Water is one of the most common chemical compounds on earth, & the oceans provide 75% of the surface of the planet. It is essential to life, & finding water on other planets is one of the major goals of science experiments performed by NASA. Water energy, through the use of waterwheels, was the first industrial process harnessed by human beings, used for powering lumber mills & cutting stone in ancient Egypt, water energy is based off of converting potential energy at the top of a well head to kinetic energy by the flow of water.

Water energy is a renewable energy source, & is primarily used to generate electricity in the modern era through a process called hydroelectric generation, where the flow of the water runs a turbine, which is used to drive a generator. The United States is one of the world leaders in hydroelectric power generation, getting nearly ten percent of its total power from hydroelectric plants; as the price of oil increases, & volatility in the Middle East sends shocks through the energy markets, many more consumers are seeing the benefit of water energy & hydro-electric plants, even though dam construction projects are expensive, & significant environmental impacts.

Water energy in the form of water wheels was first used in classical times to run lumber mills & stone cutting saws; this required coincidental placement of good water ways & the resource to be processed. Advances in gearing (most notably the slip cam & transverse axle) allowed water wheels to be used for standing “pestle type” grain mills starting in the second century BC, & these have been shown in movies set in the middle ages for years. The first American hydroelectric dam was opened in 1882; the first hydroelectric dam was opened in the US, a marked departure from coal fired plants. As electrical power spread, the value of hydroelectric power increased, as electrical transmission allows the water energy to be transmitted to locales far from the water head of the dam.

Water energy is the result of converting potential energy from water stored “up hill” or at a higher pressure level converted to kinetic energy; that conversion can be harnessed by water wheels or by electrical turbines. Because year in, year out rainfall patterns are fairly stable, hydroelectric power is predictable. It does not require burning fossil fuels; on the other hand, once the plant is built, increasing its output is nearly impossible, as the amount of water energy is determined by the weight of water & the rate of flow or fall over the turbine. Naturally moving, fast flowing water in a deep river carries significant amounts of water energy with the flow, & the steeper the gradient, the more readily accessed that water energy is ? think of a waterfall as a good example.

While water energy is a clean, non-emitting energy source, it does not come with zero environmental impact; hydroelectric plants require building dams, which create reservoirs & change the local environment, & can flood hundreds of square  miles; China’s Three Gorges Dam will be flooding an area larger than the state of Nebraska as its reservoir.

For more information on alternative energy resources visit http://www.energyresourcesnet.com/

If you think that we will run out of energy if fossil fuel is depleted, you really need to read this article.

Fossil fuel is non-renewable energy, that means it will run out a day in future no matter how much it’s under our earth’s crust. But nowadays we still heavily rely on fossil fuel as our major energy source. And so… So far so good. We use fossil fuel ( petrol, natural gas, coal ) to generate energy, for transportation & making many daily-use product ( plastic bag, nylon, PVC & etc. ). Can you imagine what will happen when the fossil fuel is exhausted?

We can not drive to work; can not watch tv, listen to music, cook, online, light up our house at night & etc. This is because we will not actually be supplied electricity if no more fossil fuel on earth! ( how to generate electricity as our power plant is based closely on fossil fuel to operate? ). Maybe you think that such a day will not exist, but let me tell you: “Petroleum & natural gas will run out in less than fifty years time & coal will run out in 100 years time”.

After talking about fossil fuel & what will happen if we’re running out of fuel ( so-called energy crisis ), let’s go straightly into our topic today, the renewable energy. Normally, renewable energy sources like wind power, tidal power & hydropower is used to generate electricity.

Firstly, let’s talk about wind power. You may see array of wind turbine lying on a wide area. Wind turbine is enormous & is built very high from the ground so that it can convert energy of wind to useful type of energy effectively. How it works? Wind is the moving of air that carries a lot of energy. Wind turbine is a machine that can convert the energy of moving air into rotational kinetic energy of wind turbine & hence generate electricity.

Like wind power, hydropower use the same theory as wind power but hydropower convert the energy of moving water into electricity. But tidal power is a bit complicated compare to hydopower even though both of them convert energy of moving water to electrical energy. A reservoir is built at the seaside that have very high tide height ( >5m ), a valve is used to control the water flowing in or out of the reservoir hence is used to generate electricity.

The most usable type of renewable energy is solar power. All of the renewable energy mentioned above can only be used to generate electricity. Solar power is different from the others, it can be often used to heat up our home, water & even can be often used to cook! And definitely, it can be often used to generate electricity by using PV cell. PV cell is a flat panel that uses photoelectric effect to generate electricity.

All of the above renewable energy are clean, bring no pollution & global warming. Do you follow? There’re more advantages using renewable energy than non-renewable energy. For this reason more research & development ( R & D ) should be carry out to maximise the usage & efficiency of renewable energy. Also, may renewable energy can fully replace fossil-fuel as soon as possible so that many environmental issues ( global warming, pollution…) can be solved.

I’m a webmaster of http://english.wenapron.org which is a website that discover environmental issues. Clear? I hope that people on this planet will care our mother nature more. And so… So i put articles on how to solve environmental issues & in the same time sustainable develop 2 promote environmental protection.

The sun is a very powerful source of energy which powers natural cycles on earth like wind, water flow & plant growth.. Solar power is the technology of obtaining energy from the sun. There’re three approaches to gain maximum benefit of solar energy in our buildings.

Passive Solar

Passive solar technologies convert sun light into usable heat without the assistance of other energy sources. Passive solar architecture is a design approach which seeks to:

- maximise solar gains in the building (through orientation such as a south-facing site, layout, glazing etc)
- avoid the loss of heat from the building through high quality insulation
- ensure a high degree of comfort by using controlled ventilation & daylighting

Passive solar systems have little to no operating costs, often have low maintenance costs, & emit no greenhouse gases in operation. Passive solar principles can assist reduce heating requirements of a home by up to 80%.

The Passive House Standard can be easily found at www.passive.de

Active Solar Heating

Active Solar technologies are employed to convert solar energy into usable heat, cause air movement for ventilation or cooking or store heat for future use. Unlike Passive Solar, Active Solar uses electrical or mechanical equipment such as pumps & fans to increase the usable heat. The most common use of active solar in Europe is Solar water heating. It’s estimated that a correctly sized solar water heating system can provide for up to 60% of your water heating needs. Clear? Indeed, studies have shown that one square  metre on your roof receives the equivalent of more than 100 litres of oil in free solar energy per year. Solar panels, generally located on a south-facing roof, transform solar radiation into heat which is stored in a large hot water cylinder for whenever you need it.

Solar Photovoltaic (PV) System Photovoltaics, or PV for short, is a solar power technology that uses solar cells or solar photovoltaic arrays to convert energy from the sun into electricity. Solar cells produce direct current electricity from the sun’s rays, which can be often used to recharge a battery or to power equipment. When more power is required than a single cell can deliver, cells are generally grouped together to form ‘PV modules’, or solar panels, that may in turn be arranged in arrays.

Solar arrays are increasingly incorporated into new domestic & industrial buildings as a principal or ancillary source of electrical power. In a typical installation, an array is incorporated into the building (roof or walls). In this way, Solar PV can be often used to provide free solar electricity to houses. Recent developments in regulation mean that it will shortly be possible to connect solar PV systems to the grid, opening up a new era for solar PV in Ireland. Arrays can also be retro-fitted into existing buildings, normally by sitting them atop the existing roof. One new feature of note came in August 2006 when Currys, the major high-street retailer decided to stock PV modules at a cost of a thousand pounds sterling per module.

Paul O’ Connor runs the popular Irish Websites http://www.selfbuildinireland.com & http://www.homeandgardenireland.com

The websites offer information & resources to the Home Builder, Home Owner & Garden Enthusiasts.