Wind And Solar Power – For Tomorrow’s World

One of the major problems families today face is the price development of home essentials, such as electricity. In today’s world electricity is absolutely essential. Homes, work places, schools are all depending on it; today there is no way we could ever live without it. Now the issue is that the prices of this irreplaceable commodity has started to rise due to global rises in demand and volatility in the global markets for oil. This means that it is more important than ever to think about how we can make savings on our energy bills. And in order to decrease our monthly electric bills, we need to look into alternative energy sources, such as installing home solar panels or windmill power.

Residential power sources are great alternatives to traditional energy. They use solar or wind energy which costs nothing, is recyclable and produces no carbon emissions. The three reasons just mentioned are why lots of people choose to fit wind or energy power units at home. As per recent research, if in the US twenty-five percent of homes are powered by small scale residential power units, possible thousands of regular power plants could be rendered surplus. If this came true there would be significant cuts in carbon emissions and a lot less green house gases the destroy the earth.

Instead of solar power you may want to install home wind turbines that are great if you want to save money on electric bills, save the environment and even our health. These windmills use a free reusable resource, the wind, which will produce energy without emitting any harmful carbon that destroys the ozone. The one time investment in a power unit will last for many years, generating energy for your household. Wind devices work using the wind to turn the turbine that creates mechanical energy. The mechanical energy created is transmitted to wind power generators that convert the energy to electrical power for home use. Energy that is not used immediately can be stored in a battery to be used when there is no wind.

There are two major benefits from using wind or solar power systems in your home. One, you can save a lot of money by using residential power, and two – maybe even more importantly – you can help save the environment. Fitting residential wind or solar units is an investment for the future that will cut your costs for a long time; money, which you can spend on more important things like your family’s needs. There may be another money saving opportunity as well, since some governments offer tax benefits to anyone who installs environment friendly energy sources. It is sometimes possible to also sell electricity if you produce more than what you need. There are also the environmental benefits of using wind or solar power because you lessen the demand of electricity produced by electric power plants that use fossil fuels to produce electricity.

So, not only will you save money, you can also save the environment from the ill effects of carbon emissions.

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Technorati Tags:: Electricity generation, Solar Energy, wind power, Wind turbine

Solar Power – Greatest Power to Power Your Home

Many people are starting to change their power to solar power since the finite fuel is starting to run out and become expensive. In actual fact, solar power offers many advantages rather than the fossil be doing well for the environment because solar power does not produce harmful emissions or pollution.

It will charge you lots of money for heating a swimming pool when you decide not to use the solar power. You need electric, oil, gas or some other expensive commodity to operate the electric pump in order to move the water from the pool throughout a heated chamber.

Some have learned that applying solar power significantlextensively reduces their costs energy, regardless of the kind of fuel required for the heat. The water still has to be pumped at least one way from or to the pool, but heating the water with solar power cuts off a large chunk of the bill.

Using large black plastic or rubberized containers, water is pumped out of the pool and into the bladder where it remains exposed to the sun until it reaches a designated temperature. At that time it can be returned, by gravity, back to the pool with the water heated by solar power. If the system is thought through before it is installed, the pumps can be designed to work on solar energy as well. It then provides a heated pool at no operational cost.

Remote Access to Electricity Boost Solar Energy Use

There are several locations to which electric power has not been extended. Additionally, in some applications such as a small fishing or hunting cabins , the use of solar power give electricity where it would otherwise be unavailable.

In some of these areas it is not considered a good investment by the electric company to extend their power lines and the cabin’s owner can’t afford to purchase the setting up. By applying solar power, they can enjoy lots of of the comforts at home without the added cost of an electric bill.

Other convenience that is offered by the solar power is available these days. You can find the flexible and portable panel for various purposes. Since it can be rolled up and carried in backpacks easily, you can use it when go camping. This give solar power. By using this device, you can listen to the radio or charge your cellular phone.

Still being curious about solar power? Just explore more on the links here and you will get much more about solar energy as well as any thing related.

Technorati Tags:: Solar Energy, Swimming pool

Solar Power: Important Principles

How Solar Energy is Created

Solar energy consists of the light and heat emitted by the sun, in the form of electromagnetic radiation.

With today’s technology, we are able to capture this radiation and turn it into usable forms of solar energy – such as heating or electricity.

Although one could go into technical dissertations on the subject of electromagnetic radiation, how it is converted into solar energy, and the exact qualities of its electromagnetic rays, this is not something the average person needs or wants to know.

But in order to benefit the most from the use of solar power, there are a few facts you should know. Knowing these facts can assist you to make a sound decisions, when looking at the use of solar power as a clean energy source for your home, RV, or whatever the case may be.

Available Solar Resource

The technical feasibility and economical viability of using solar energy depends on the amount of available sunlight (solar radiation) in the area where you intend to place solar heaters or solar panels.

This is sometimes referred to as the available solar resource.

Every part of Earth is provided with sunlight during at least one part of the year. (I say “part of the year” as the north and south polar caps are each in total darkness for a few months of the year.) The amount of sunlight available is one factor to take into account when considering using solar energy.

There are, however, a few other factors which need to be looked at when determining the viability of solar energy in any given location. These are as follows:

* Geographic location

* Time of day

* Season

* Local landscape

* Local weather

Because the Earth is round, the sun hits its surface at different angles, at different locations on the globe. This ranges from 0? (just above the horizon – a good example of this is the north pole during the winter) to 90? (directly overhead, at and near the equator).

When the sun’s rays are vertical (directly overhead), the Earth’s surface gets a maximum of solar energy. The more slanted the sun’s rays are, the longer they have to travel through Earth’s atmosphere before reaching the surface (becoming more scattered and diffuse as they go along).

The more scattered and diffuse the sun rays are, the less concentrated the solar energy is. Because of the fact that the Earth is round, the polar regions never get direct sunlight, and, during their respective winter months, they receive no sun at all.

The Earth travels around the sun, in an elliptical orbit. Because of its elliptical path, the northern hemisphere of the Earth is closer to the sun during one half of the year, and the southern hemisphere is closer during the other half of the year.

When one part of the Earth is closer to the sun, it receives more concentrated solar energy. This is the time of year that is referred to as “summer.”

But regardless of summer or winter, the 23.5? tilt of the Earth’s axis plays a larger role in determining the amount of sunlight striking Earth at a particular location. The tilting of the earth results in longer days in the northern hemisphere during one half the year, and longer days in the southern hemisphere during the other half of the year.

Areas such as the United States and Europe receive more solar energy between May and September – not only because days are longer, but also because the sun is almost directly overhead during this season. The sun’s rays are far more slanted during the shorter days of the winter months. Cities such as Denver, Colorado, receive nearly three times more solar energy in June than they do in December.

Diffuse and Direct Sunlight

As sunlight passes through Earth’s atmosphere, some of it is absorbed, scattered, and reflected.

The following is a general list of materials that cause the sunlight to be diffused:

* Air Molecules

* Water vapor

* Clouds

* Dust

* Pollutants

Sunlight affected in this way is referred to as diffuse solar radiation or diffuse sunlight.

Sunlight that reaches the Earth’s surface without being diffused is called direct beam solar radiation or direct sunlight.

The sum total of all diffuse and direct solar radiation in a given location is called global solar radiation. It is the total amount of sunlight hitting the Earth at any specific spot, both direct and diffuse combined.

Pollution and other atmospheric conditions (such as weather patterns) can reduce direct sunlight by 10% on clear dry days. They can reduce direct beam radiation by 100% on thick, cloudy days.

Note that the absence of direct sunlight does not imply total darkness, as some diffuse light will still get through.

Measuring Sunlight and Solar Energy

Scientists measure the amount of sunlight available in specific locations during the different times of year.

They are then able to estimate the amount of sunlight which falls on similar regions at the same latitude with similar climates and conditions.

Measurements of solar energy are normally expressed as “total radiation on a horizontal surface”, or as “total amount of radiation on a surface tracking the sun”.

In this last case, the assumption is that one is using a solar panel that automatically tracks the sun.

In other words, the solar panel would be mounted on a tracking device so that the panel would remain at right angles to the sun throughout the day.

This system is primarily used for industrial setups, when it is used at all.

Solar Energy Measurements

Radiation data (the amount of solar energy available at a given location) for solar electric (photovoltaic) systems is often represented as kilowatt-hours per square meter (kWh/m2). Direct estimates of solar energy may be expressed as watts per square meter (W/m2).

Radiation data for solar water heating and space heating systems is usually represented in British thermal units per square foot (Btu/ft2).

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Anna supports of clean living and the use of renewable energy in order to combat pollution and Global Warming, as well as the humanitarian and economic consequences of dependency on fossil fuels.

Visit Anna’s blogs, Solar Power and Alternative Energy, to find more information on solar power and alternative energy.

You can also find a wide variety of solar power equipment, solar battery chargers, portable solar power, solar water heating, solar powered weather stations, solar fountains, solar lights, home solar panels, and more, at her Solar Power Store.

Technorati Tags:: Renewable Energy, Solar hot water

Solar Chimney | Solar Power

Solar Chimney

A new alternative energy solution is has been put to the test, and it’s been given the go-ahead for production in Australia. It’s a solar chimney.

This new solar power station is based on solar tower technology designed in Germany. An incredible thing about this new technology is the simplicity of its design, and its ingenious use of basic principles of physics to create energy.

So what is this new solar energy plant?

This new solar tower, also referred to as a “solar chimney,” uses solar power to turn wind turbines.

Solar energy to turn wind turbines?

How does this work?

Well, the simplest way to describe it is to compare it to a huge greenhouse with a large chimney.

As we all know, hot air rises.

The greenhouse of the solar chimney system is used to capture the heat from the sun. The heated air in the greenhouse is then allowed to escape through a huge chimney.

Before the air escapes through the chimney, it is forced to pass through wind turbines, which are in turn used to generate electricity. You can see a diagram of it here.

The beauty of this technology is that it uses centuries-old tried-and-true principles of updraft. This is the same principles used for chimneys in open fire places. When you light a fire in your fireplace, your house doesn’t fill up with smoke. This is because of the suction which is created by the hot air rising up through the chimney. This pulls the smoke up through the chimney as well.

But in the case of the solar tower (solar chimney) we are not using a fire to create hot air. We are simply allowing the sun to do its thing: heat stuff up. In this case, the sun heats the air up, and the air then rises through the solar chimney as a result.

Australia is the first country to build this type solar energy power plant for commercial use.

The central tower will be over 3000 feet high and 400 feet in diameter.

It will use 750,000 cubic yards of concrete.

The solar energy collector (greenhouse) will contain thirty-million square yards of space. That’s more than three and a half miles in diameter.

It will have 32 wind turbines placed at ground level, each capable of creating 6.25 megawatts of electricity.

It will take 34 months to construct.

It will provide a total of 200 megawatts, which is enough to provide solar power in the form of electricity, for over 200,000 households.

The solar tower will create absolutely no carbon emissions, greenhouse gases, or other pollutants in its energy generation process. In other words, it is going to be 100% eco-friendly.

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For more information on solar power and alternative energy, visit the author’s website on Alternative Energy. You can also find a variety of Solar Panels and other solar-powered or wind-powered equipment at the Solar Power Store.

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Residential Solar Energy From A Home Solar Panel

Residential Solar Energy

Building your own home Solar Panel is not hard, if you know how! Click Here For Videos and More Information! Although the manufacture of solar panels is done in a strict quality controlled environment, for personal purposes you can build your own home solar panel to see how the sun’s energy can be converted to electricity. The most efficient panels are actually made with silicon, but you can build your own residential solar panel by using cuprous oxide, a material known to cause light to be turned into electricity. True, you can’t just go into a store and buy cuprous oxide but you can actually duplicate with a thin sheet of copper.

Click Here For Videos and More Information on home Solar Panel building!

To make your own residential solar panel, you will need about one square foot of thin copper plate, two alligator clips and short leads of wire, a wide mouth glass jar, tap water and salt. You will need a voltmeter, a small machine that can detect a small amount of electricity to see the end result. Building your own solar panel means you will need some sort of electric stove or hot plate to heat the copper sheeting. Place the copper sheet on the burner and turn it on high and let it sit there for about 30 minutes. While it heats, you see the plate starts to turn colors and the heat will actually show the outline of the heating coil underneath the plate. As it gets hotter it will begin to turn dark until the entire sheet has a black coating.

When the entire sheet is black, turn off the burner and let it sit to cool for about 20 minutes. As the the cuprous oxide cools the black coating will begin to pop off the sheet, leaving a thinnish coating of red on the copper. The red coating is needed to build your own solar panel. Most of the black can be rinsed off under running water, but it should not be brushed clean.

Salt Water Helps Produce The Electricity for your residential solar panel: Using the alligator clips, connect the copper sheet to one the top of one side of the glass jar. Attach the other clean copper sheet to the other side of the jar. Combine 2 tablespoons table salt into hot water, mix well, cool, making sure it dissolves and then pour it into the jar. Be cautious that the water does not get on the alligator clips. The two copper sheets should be under water with about 1 inch exposed at the top of the car to build your own solar panel.

Now you are getting closer to your home solar panel. As carefully as possible place the entire thing in the sun, either in a window or actually carry it outside to expose it to the sun. Using the voltmeter connect the leads to the two alligator and you can see the meter indicate the small amount of power being generated by sunlight, proving you were able to build your own home solar panel. Now the sun’s energy from your residential solar panel is yours to use! You can feel glad!!! Click Here For Solar Panel Videos and More Information

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Technorati Tags:: home solar panel, residential solar energy

Help With Solar Power Systems

Solar Power Systems

Whenever the sun is out, your home’s roof is exposed to solar power systems. Why not harness that energy, reduce your electric bill and limit the amount of carbon dioxide you add to the atmosphere each day? Depending on where you live, your roof’s orientation, and the load your roof can bear, mounting photovoltaic cells (PVs) on your roof could be a valuable investment in increasing your household’s energy independence.

* What are PVs and how do they work?

Certain materials like gallium arsenide, crystalline and amorphous silicon, and copper indium diselenide produce electricity when they absorb light. This is called the photoelectric effect. solar power cells are typically made of a thin layer of such photosensitive material. Light hitting the solar cell raises the energy level of the electrons within. At an elevated energy state, the electrons are able to escape from their molecules and create an electric current.

* How can you tell if your roof is a good candidate for solar cell installation?

Solar cells work best when exposed to direct sunlight. Ideally, you could put a panel of cells on a motorized mount that follows the sun’s path through the sky, but that’s usually not practical for a roof. The next best thing is a roof mounting where the pitch has an unobstructed southern exposure. Depending on your latitude and the angle of your roof’s pitch, your PV system installer may suggest optimizing the angle of your PV modules with an elevated mounting rack so that they can catch more light.

You also need to be cognizant of how much weight your roof can bear. If your roof already has two layers of shingles, you probably shouldn’t add solar power panels to the load.

An alternative to solar panels is a relatively new product, “solar shingles”. These are shingles into which PV cells have been incorporated. If your roof needs to be replaced anyhow, solar shingles offer the opportunity to kill two birds with one stone.

Finally, PV cells lose efficiency as the temperature rises. In warm climates, you may be better off exploring alternatives like wind-power. In places like Florida and California, public utilities are bringing solar thermal electric power plants online. Such systems, though primarily feasible only for installations much larger than the single-family home, actually turn out to be more efficient and cheaper than PV systems when it’s hot.

* What components make up a roof-mounted PV system?

PV cells output direct current, and can be connected in series to increase the output voltage. Though there are specialized appliances available that run on DC, most PV systems have the cells send electricity through an inverter. This converts the solar cells’ DC to standard household alternating current. The output from the inverter is then integrated into the house’s electric system. Smaller systems mostly just supplement power from the electric company, reducing your overall bill.

If you install a larger system and make your home very energy efficient, you may have often had a surplus of electricity. You can either store this for later in on-site batteries, or feed it back to the electric grid. If you feed your surplus back to the grid, the electric company may actually pay you. This is called “net metering”, and is the law in more than thirty-five states. It’s a good deal for you, and it’s a good deal for the electric company because your PV system is most likely to produce surplus electricity exactly when peak demand occurs. Your surplus-producing PV system could actually help avert power outages.

* How much does a PV system cost?

The initial cost of a roof-mounted solar array can range from $6,000 for a small supplementary system to $30,000 or more for a large “off-the-grid” system. The capital cost of such a home-based PV system is rather abstract, though. It would be better to compare what you are currently paying per kilowatt-hour to an amortized per kilowatt-hour cost for a PV system. According to the U.S. Department of Energy, that cost is about $0.25 per kilowatt-hour. In most places, this is more than what the utilities charge.

That’s the bad news.

The good news is that there are many state-sponsored incentive programs for solar energy. Take advantage of them, and you could break even. For information about these programs, you should consult the National Database of State Incentives for Renewable Energy (DSIRE), prepared by the North Carolina Solar Center. The database covers incentive programs meant to promote the development of renewable energy.

In addition, the cost of the electricity your PV system produces is insulated from deregulation, rate-hikes, and inflation — that amortized twenty-five cents per kilowatt-hour cost will still be twenty-five cents thirty years from now. Who knows what your local electric rate will be?

And there’s more good news. By going solar, you are reducing the amount of coal and natural gas burned at power plants, you are reducing the amount of carbon dioxide we pump into the atmosphere, and you are asserting your energy independence.

Putting solar cells on your roof is an idea whose time has come. Home-produced solar electricity is feasible, makes sense, and is within the reach of most homeowners.

Technorati Tags:: Help with Solar Power Systems, Solar Power Systems, United States Department of Energy

Solar Power Components – energy efficient

Solar Power Components

Lets look at some important solar power components: Photovoltaic cells—those black squares an array of which comprises a solar panel—are getting more efficient, and gradually less expensive, all the time, thanks to ever-better designs which all them to focus the gathered sunlight on a more and more concentrated point. The size of the cells is decreasing as their efficiency rises, meaning that each cell becomes cheaper to produce and at once more productive. As far as the aforementioned cost, the price of producing solar power per watt hour has come down to $4.00 at the time of this writing. Just 17 years ago, it was nearly double that cost.

Solar powered electricity generation is certainly good for the environment, use of these solar power components gives off absolutely zero emissions into the atmosphere and is merely utilizing one of the most naturally occurring of all things as its driver. Solar collection cells are becoming slowly but surely ever more practical for placing upon the rooftops of people’s homes, and they are not a difficult system to use for heating one’s home, creating hot water, or producing electricity. In the case of using the photovoltaic cells for hot water generation, the system works by having the water encased in the cells, where it is heated and then sent through your pipes.

Photovoltaic cells are becoming increasingly better at collecting sufficient radiation from the sun even on overcast or stormy days. One company in particular, Uni-Solar, has developed solar collection arrays for the home that work well on inclement days, by way of a technologically more advanced system that stores more energy at one time during sunlit days than previous or other arrays.

There is actually another solar power components available for use called the PV System. The PV System is connected to the nearest electrical grid; whenever there is an excess of solar energy being collected at a particular home, it is transferred to the grid for shared use and as a means of lowering the grid’s dependence on the hydroelectrically-driven electricity production. Being connected to the PV System can keep your costs down as compared to full-fledged solar energy, while at once reducing pollution and taking pressure off the grid system. Some areas are designing centralized solar collection arrays for small towns or suburban communities.

Some big-name corporations have made it clear that they are also getting into the act of using solar power (a further indication that solar generated energy is becoming an economically viable alternative energy source). Google is putting in a 1.6 megawatt solar power generation plant on the roof of its corporate headquarters, while Wal Mart wants to put in an enormous 100 megawatt system of its own.

Nations such as Japan, Germany, the United States, and Switzerland have been furthering the cause of solar energy production by providing government subsidies or by giving tax breaks to companies and individuals who agree to utilize solar power for generating their heat or electrical power. As technology advances and a greater storage of solar collection materials is made available, more and more private investors will see the value of investing in this “green” technology and further its implementation much more.

Technorati Tags:: Electricity generation, Solar Power Components

Interested in Renewables? Read the Solar Energy Facts

Solar Energy Facts

We hear about solar energy on an virtually daily basis.  But are we hearing real solar energy facts or is there are lot of talk filled with opinions which cannot be backed up with hard evidence.  Since this is becoming a hot political topic there are many solar energy facts out there which are not quite as substantiated as we are lead to believe.

One of the reasons why solar power is so topical is because it is a renewable energy source.  This means that, unlike energy which is dug or drilled out of the ground, it is not going to run out.

Another important solar energy fact is that it is a clean energy source. This means that it doesn’t increase levels of hazardous greenhouse gases and it does not produce any other emissions which are currently considered to be dangerous to our ecosystem.

Solar energy facts concerning its versatility are a bit vaguer.  This is due to the current problems with efficiency and storage.  If you are considering converting to solar power completely you may want a solar powered car.  This is possible, but you will probably find that you are going to have a difference in performance levels between your traditionally fuelled car and your solar powered.  So it is true that you can have a solar powered car, but there will be sacrifices.

So if you wanted to go green and have everything solar powered, would it be possible?  Well, one important solar energy fact is that manufacturers are cashing in on the idea and they are pricing solar energy powered products much higher than traditionally powered similar products.

So is solar energy cheaper to run?  This is a maze of information and extracting the solar energy facts of this one is not easy.  Once solar energy systems are installed they are cheaper to run.The sun will beam for free and every time she shows her face you will be gaining power to either use, store or sell.  In some areas you can sell your excess solar power back to your local energy supplier.  This all sounds very good, but there are a lot of upfront costs which you will have to recoup before you are making a profit, so don’t get too excited too quickly.  The only way to truly establish if you could run solar powered without breaking the bank is to get one of the solar powered companies to come and do a home assessment.  During this they will advise you of the work which would be required to convert your home to solar power.  This should include the cost parts and the amount of energy you are likely to be able to produce.  Most companies will be able to review your current energy use and be able to tell you if you will be short and need to top up with traditional sources of energy or if you will be selling back to the local supplier.

One solar energy fact you can be sure of is that solar energy is here to stay.  We just don’t know what percentage of our energy usage will be solar and how quickly this change over will happen.

Technorati Tags:: Renewable Energy, solar energy facts, World energy resources and consumption

Different Types of Concentrating Solar Power

Concentrating Solar Power

There are two main types of solar power generation methods used to produce electricity on a commercial scale. Photovoltaic panels, which are the large collections of the systems that you see in small scale on house roofs. Using the heat of the sun as thermal solar power are concentrating solar power (CSP) plants.

We will take a look at the way in which concentrating solar power plants create electricity. CSP plants are capable of producing electricity at a higher maximum capacity than a photovoltaic facility of the same size. They will play an increasingly important role in the move away from fossil-fuel sourced energy to that of renewable energy.

There are four main types of concentrating solar power systems: parabolic troughs, fresnel reflectors, dish / engine systems and central receiver systems. The technology involved with each is proven and either has been or still is in operation around the world with more developments in solar energy in progress to increase global capacity.

Trough systems work by making use of mirrored troughs that are used to focus the sun’s energy onto a receiver tube that is filled with fluid. The heat generated from this process heats the fluid to high levels so that super-charged steam is created. A conventional steam generator is then used to produce electricity.

A trough-based CSP plant typically consists of rows of mirrored troughs placed parallel to each other along a north-south axis in what is known as a collector field. Optimum heat is focused on the receiver tubes thanks to the pivoting nature of the parabolic troughs which track the sun’s movement across the sky. Electricity continues to get generated when the it’s cloudy or after the sun has set thanks to thermal storage. Technological advancements are continuing to prolong this production period in a bid to move to continuous solar electricity production.

One of the largest developments to use the parabolic trough design is the Andasol project in Spain. The surface area of the mirrors used to form the energy collection field of Andasol 3 alone is around 500,000m2.

Fresnel reflectors provide a more concentrated focus of solar energy onto centrally placed receivers. Costs are reduced using this method because the rows are positioned more closely together, there are fewer moving parts and less receivers are required. The receiver is stationary and it is shared by multiple mirrors.

An example of a recently commissioned CSP plant using reflector technology is the Kimberlina CSP plant in California developed by Ausra. This power plant is relatively small at only 5MW capacity, but it paves the way for future large-scale developments.

Dish / engine systems are stand-alone units that contain dish-shaped parabolic mirrors that concentrate the sun’s energy onto a receiver mounted above the dish. From there the energy is converted into mechanical power and electricity is generated similar to the way a mechanical engine runs. Each dish / engine unit has a capacity of around 25kW of solar power and it tracks the sun to ensure optimum power.

An example of the dish / engine technology is the Stirling Energy Systems dish called the Suncatcher that will be used in fields of thousands to form a power facility capable of generating over 500MW of electricity.

Central receiver systems, known colloquially as power towers, is another way to produce concentrated solar power. Looking as though they’re honoring a higher deity, thousands of mirrors called heliostats cluster around a receiver that sits on top of a tall tower. Molten salt is heated as it passes through the receiver and this then makes steam which operates a conventional steam generator. The molten salt can be stored for great lengths of time which means that this type of solar energy generates electricity continuously around the clock.

An example of a central receiver system in development is the Solar Tres power plant being built in Spain. The Solar Tres power plant will be a 15MW facility and it follows on from the successful demonstration power plant known as Solar Two which was located in the Mojave Desert.

One of the crippling problems with solar energy has been the high cost per watt of electricity, but technological advancements are bringing those costs down. Already, concentrating solar power plants hold a huge advantage over the traditional fossil fuelled counterparts in the lower impact to the environment. In fact, one of the only impacts that concentrating solar power plants have on the environment is land use.

Renewable energy continues to grow and with continued support it will eventually become one of the main sources of electricity around the world. Concentrating solar power has proven to be a renewable energy source with still more untapped potential.

More on concentrating solar power:

Technorati Tags:: concentrating solar power, csp, environment, Renewable Energy, Solar Energy, Solar Power

What is Solar Power All About?

What is Solar Power?

Solar Power is a form of renewable energy as it utilizes the radiant energy coming from the sun. This is done by converting sunlight into electricity using solar cells.

Solar cells or photovoltaics were invented in the 1880’s by Charles Fritts. Although it did not convert a lot of sunlight into electricity at the time, this started a revolution that continued on to the 20th century. The greatest example is perhaps the Vanguard 1 which was a satellite fitted with solar cells that enabled it to transmit back to earth after its chemical battery was exhausted.

It success prompted NASA and its Russian counterpart to the same with other satellites including Telstar which continues to serve as the backbone of the telecommunications structure today.

The most significant event that stimulated the demand for solar energy was the 1973 oil crisis. Early on, power companies would charge the consumer a hundred dollars per watt. In the 1980’s, it became only $7 per watt. Unfortunately, the lack of government funding did not sustain its growth so the growth of solar energy was only 15% annually from 1984 to 1996. But you can still on your home by checking out house insurance quotes.

There have been a decline in the demand for solar energy in the US but this increased in Japan and Germany. From 31.2 megawatts of power in 1994, this increased to 318 megawatts in 1999 and world wide production growth increased by 30% towards the end of the 20th century.

Next to these two countries, Spain is the third largest user of solar energy followed by France, Italy and South Korea.

There are three basic approaches to get the most out of solar energy. It is namely passive, active and solar photovoltaic systems.

1. In passive, it has to do a lot with the building design. This will enable the building to avoid heat loss so people inside will feel a great degree of comfort with the help of controlled ventilation and day lighting. Homes that apply this will greatly reduce their heating requirements by as much as 80% with minimal cost.

2. Active solar heating is used to convert sunlight into heat which provides space or water heating. Used extensively in Europe, getting the right size will cover 50% to 60% of your hot water heating requirements.

3. Lastly is photovoltaic which converts solar radiation into electricity. This is done by installing solar cells in the ground and the greater the intensity of the light, the greater the flow of electricity. These are available in different sizes and some are installed in consumer devices like calculators and watches.

Some vehicles are now powered using solar energy. Cars although not yet produced commercially compete in the World Solar Challenge which invites competitors from around the world to compete in this annual event in Australia. So to save on your car the best you can do is look at car insurance quotes least expensive. There are also unmanned aerial vehicles and balloons. To date, solar energy has only been successful in passenger boats.

Many of us take the sun for granted and if we are really serious about preserving the environment and reducing our demand for oil, solar energy is just one of the options we have on the table. We have to lobby and convince our government leaders to do more because it is the cheapest means of providing our home with electricity compared to rechargeable batteries, kerosene or candles.

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