The Benefits Of Solar Energy System

Utilizing solar energy or the power coming from the suns rays has many benefits. Let us take a closer look on each of them.

Solar energy saves money.

In 2006, we saw the highest jump on residential electric rate. In some areas of the country, as much as 60% increase was seen. Many experts agree that the trend will likely to continue in the years to come. This means that you have to pay larger sum of cash to sustain your monthly electric consumption. But if you produce your own power, you can prevent paying the high cost of energy – especially now when energy prices are very unstable.

On a larger scale, if American households switch to other types of alternative energy including solar energy, the nations spending on imported oil will greatly decrease.

Solar energy is environment-friendly.

The issue of global warming will not go away. So if you want to do your part to save this planet, drawing your power requirement from the sun will make a great difference.

Solar energy is sustainable and renewable unlike gas, coal and oil that most utility companies use. It does not produce sulfur dioxide, nitrogen oxide, mercury or carbon dioxide as byproducts so it doesnt pollute the air. Since it doesnt emit greenhouse gases, it doesnt contribute to global warming.

Using solar energy reduces demand for fossil fuel and reduces the nations dependence on foreign energy sources.

Government gives incentives to those who use alternative form of energy.

Many are discouraged to install solar electric systems because of the initial cost of the project. But, some states like California offers federal tax credits as much as $2000 and up front rebate that covers 20% to 30% of the total system cost. These offers are relatively good considering the substantial increase of energy cost in recent years.

Note: Due to the increasing number of households who want to switch into alternative forms of energy, the incentive levels decline. Check with your state government the rates it offer if you are going to make a switch.

Solar power systems are dependable and require little or no maintenance.

Photovoltaic (PV) cells that are used in solar power systems are capable of providing electricity for a very long time. Originally developed for space use, PV cells require little or no maintenance. The proof is, most satellites orbiting earth use PV cells that are in harsh environment, not maintained but are still working properly. The manufacturers of solar panels can give as much as 25-years warranty. Talk about quality and dependability.

Solar energy helps improve the quality of life.

Saving the planet one watt at a time if done collectively will help reduce the effects of global warming. It will also reduce demand on coal, oil or gas power plants that emit harmful gases. In turn, using solar power helps clean the air and improves the quality of life of every individual.

Solar energy can reduce demands for other non-biodegradable materials.

For utility companies to distribute power to every home, they need materials necessary in building these systems of power lines like electric cable and steel. These require energy to produce and contribute to greenhouse gases emissions. If we can cut the demand for power plant and switch into alternative energy, we can also reduce the demand for these materials and help the environment.

Solar Energy-The Future of Generating Energy For The Home

Solar energy for residential houses is nothing new. It has just been relegated to the background in lieu of rising cost of real estate; newer more advanced building materials, design and the limitation of resources.

Since man started building homes, sunlight played a major influence in the design. In fact, even in the more advanced urban planning method of the Ancient Chinese and Greeks, the orientation of the buildings is as much as possible directed towards where it could capture the most sunlight.

The ancients might not be as intellectually sophisticated then to use catch phrases as passive solar and thermal mass but when they build, they were building in compact proportion, employing overhangs, producing insulations and building in manners that direct the airflow within the structure and producing well lit, well ventilated spaces using the relative position of the sun to the orientation of their structures.

Lately, as the conventional sources of energy became more expensive, homeowners were once again turning to the sun for energy requirements.

Since the 1950s, harnessing the suns rays has been developing and today the solar cell technology has achieved very efficient levels that modern (so-called green house) designs apply the suns power to provide energy for the home.

While solar energy is free, the device that will convert it to run our appliances is not. To provide solar energy for the home, solar cells called photovoltaic made from semi-conducting materials, are grouped into modules. These solar panels are mounted on rooftops, yards or open spaces where it can capture the maximum amount of sunlight.

Whenever possible, the panels will be installed facing south to get the most out of the sunlight but tracking systems are also used to follow the direction of the sun. The solar panels collect the energy from the sunlight. The process basically is that when the panels are exposed to sunlight, the electrons are separated form the atoms. This movement of the electrons creates electricity.

To store power, pumps are often used – circulating water in the cells. The water goes into a storage tank where the power is stored, ready for use. Sometimes, the use of gravity is employed if it will just the same store the heated water in to the tank.

In spite of all the development in solar energy though, the use of this technology is not enough to provide power to the whole house. The best method so far can only fulfill about 80% of a households power needs. The employment of solar energy for the home will still require the use of the conventional power distribution method.

Powering the homes by solar means will still, for a while be augmented by a local power distribution agency. To many, this is already a good starting point. Homeowners that feel that the high cost of powering their houses through solar power, is justified when compared to the price that is now being paid for conventional electrification method where horrendous amounts of CO2 are being dumped into the atmosphere just to generate a pitiful amount of electricity.

However, due in part to the rising costs of energy, the technology for solar energy has been undergoing rapid phases of development. Experts are confident that within five years, powering the home through the solar method will be made widely available for those who prefer it as its sole energy source.

Solar Energy-The Advantages And Disadvantages

Perhaps the greatest argument that could be leveled about having to use fossil and nuclear fuel is our dependence on it. Global warming, though a real serious threat, maybe something that we could only be very worried about. Singly nothing much could be done about it as it will take serious political will if it is to be addressed effectively and for now, other countries are not cooperating. But the choice between traditional and alternative sources of energy, that is something most of us can choose to do.

First the advantages:

Solar energy is abundant and is free. We can count the sun to rise tomorrow and the day after that. Oil and natural gases on the other hand are non renewable, once the source taps out, it is gone forever. Sure there are other areas that could still be tapped but sooner that could run out of oil as well.

Solar energy does not pollute the air. If ever, the heat coming from the sun cleans the environment and maintains the earths eco balance. Not so with oil. Oil, its derivatives and its byproducts are great pollutants. In fact, 22,000 pounds of carbon monoxide will need to be produced first for the oil to be processed and supply a home with electrical energy for a year.

Solar energy harnessing panels are silent operators. Except maybe for the mechanical contraptions that are built into the panels so it could track the sun, from the collection of the suns rays to its photovoltaic conversion, they give neither a peep nor a squeak. It is a world of difference from the cacophony of giant drills and pumps that are used to extract oil form the ground.

Maintenance for the solar panels is very minimal. Except for the mechanical parts that are optional, almost no maintenance is needed. Once it is installed nothing much will be the cause for worry. The energy that is derived is free. With oil there is no telling what the next pump price would be and when. Oil, being a commodity, heavily depend its prices on market forces. Often with the right strategies, even market forces could be manipulated that could cause volatility in pricing.

The Disadvantages of Solar Energy

The cost. While solar energy is free, the cost of installation setbacks many household from installing it. Brand new solar energy generating systems are expensive. Although it tends to pay off overtime, initial cash out could range into several thousands of dollars depending on the quality and volume of generated power a household or an establishment would require. While solar energy technology has been around since the 1950s it is only in recent years that its development was spurred. While costs of installation could also be subjective depending on the purchasing capacity of a customer, the benefits that could be derived out of it is enormous although mostly in unquantifiable terms.

For mass consumption, distribution lines are needed and this remains to be a big issue. Old antiquated distribution lines used to transfer electricity and other modes of fuel into the homes are clogged in many regions that to deliver solar energy power into the houses of consumers will require a different approach.

Be that as it may, the benefits from solar power far outweigh its disadvantages. It is an ideal source of energy that it may soon be the norm in power generation.

Solar Energy-New Discoveries

The day may not be far off when the use of solar energy becomes a norm. There is now a deep conviction among experts that given a few years time, solar power will be in high demand that the cost will go down, inexpensive enough to undercut the prices of oil-generated electricity.

Previous predictions that it will still happen in a decade may no longer be true. The anger generated by the recent prices in oil and its vulnerability to market forces and other events may have already been enough to polarized people, governments and scientific communities into seriously considering a reliable alternative energy source.

You can not get a source more reliable than the sun. Even today homes that uses its power does not only benefit from the silent, energy generating, inexhaustible power of the sun, it also spikes up the prices of their homes. Those that have solar powered homes are even reimbursed for the surplus power that they supply to the power grid.

Presently, heliostats, photovoltaic cells and plate collectors are being used to collect the energy by focusing these panels towards the sun or constructing and installing the panels on spots where the sun shines most. Development in technology as we all know often has a snowball effect. It never stops rediscovering and reinventing that the speed of development could often be surprisingly fast.

Today, a polymer foil, thin as a sheet of paper and lighter by 200 times when compared to the regular glass collecting plates, are being developed. Chances are, these new inventions and discoveries could very well have a great potential for mass production. Previously, the glass-based materials used for heat collection need expensive substrates and require additional support for mounting due to its weight. The polymer foil, being very light could now be attached even to the walls of a structure.

So confident are scientists in the development of this technology that while the polymer foil is being developed, a plastic solar cell, based on nano technology is gaining breakthroughs. This plastic material can collect the power of the sun even on a cloudy day through harnessing the infrared rays is believed to be five times more efficient than the current technology.

While plastic materials for harnessing the power of the sun are not new, it is only recently that this plastic composite could harvest the infrared portion. Previously, only the visible rays are generated, the infrared part, which is half of the power of the sun, is invisible.

Currently, the best plastic solar cells could only harness 6% of the suns energy, with further study and development, this new plastic solar cells are expected to harness 30% of the suns solar power.

Scientists and researchers alike agree that ultimately, solar farms will be harnessing all our energy requirements and costs of power will drop. Today the price of solar powered energy is about 3 to 4 times per kilowatt hour compared with conventional electricity. That could change dramatically though the development of the existing technology and recent discoveries.

The roller pressed flexible plastic materials and the polymer foil are only two of the best hopes in arriving at a cleaner, greener and safer environment that could ultimately free the planet from its dependency on the depleting supply of oil.

Solar Energy- Why Is It Not Yet Widely Used

Solar Energy It is Popular. So Why is it Not Yet Widely Used?

The fact is, the 350,000,000 terawatts of power available from the sun is so huge that an exposure to a full sun in only 15 minutes will be enough to generate the worlds energy requirement

Compare that with energy that is generated by nuclear and fossil fuel. Presently, the available data for fossil and nuclear fuel is 10,800,000 terawatts which we all know to be non renewable.

To produce electricity, utility companies burn fossil fuels that translate to 1.3 pounds of carbon dioxide to produce 1kw of electrical power. This unwanted CO2 emissions are dumped into the atmosphere. This then translates into each typical home being accountable yearly for 22,000 pounds of CO2 emissions.

The harnessing of the suns rays is clean and safe. It produces no emissions and it is practical and may in the years ahead, prove very economical. In the United States, only 0.1% of power that is generated is solar energy driven. So what are the obstacles?

According to the Wall Street Journal (in an article that was released in its August 2008 issue), there are groups, backed by political groups that are lobbying against the putting up of transmission lines for solar power. The construction of distribution lines for solar energy is also being blocked by environmental activists that restrict the delivering of solar energy to those who want it in their homes.

Another obstacle is that the power grid in the United States which was designed more than 100 years ago is now so congested in many regions. To deliver the solar power to consumers, scientists and engineers will have to come out with another cost efficient plan to transfer huge amounts of energy from one location to another.

Solar panels are considered expensive. Although a home increases its value by folds when solar powered, the costs still could be prohibitive to most that unless the non silicon flexible solar panels that are now being developed are released for market consumption, powering homes through solar energy could still be very limited.

Other forms of rewards to avoid fossil fuel use should still be effectively placed. The 30% tax cut to projected cost previously awarded will be more attractive if other federal credits are included to encourage further investments.

The global warming issue that has been brought to the papers is a recurrent subject of talk shows and remains to be a good news item. Also, the too unstable pump prices, should and for most part, already be a good incentive to use this alternative source of energy.

However, effective solar energy transmission to homes will remain to be very hard unless these obstacles are breached. Assuming that these obstacles are solved today, it will still take some 10 years to convert 20% of American homes into solar energy users. Meanwhile, solar panels on individual homes remain to be the most viable alternative.

The good part to solar energy quest is that technology is advancing very rapidly. Nano technology for solar power is being developed and may be available in five years time. Other breakthroughs in cell designs are also being developed that could, in the next few years, be a cost-effective way of generating energy without having to rely anymore on fossil and nuclear power.

Solar Energy- This Commodity Is Not for Sale

If anything good came out during the recent increases of the fuel oil prices, it is that once again, there is a merry interest in alternative sources of energy. Even when pump prices has been decreasing like nothing we have seen before, the uproar created and the pain it did to business will have a good chance of sticking. The desire for alternative sources of energy is on the forefront and may it stay there for good – as it should.

Extracting oil from crops is a good idea; the downside is that food supplies could be dramatically reduced. Wind power is another excellent thing except for the many buts that wind power generation have.

If costs is the main objection to solar power generation that should be the least of worries.

The installation of solar panels is until today, considered a specialized job. Like any commodity in the market, when the demand is high but the supply is limited, the cost increase. As more and more homes clamor for alternative sources of energy, better technology and more labor is drawn to the job that market forces could take place and result into much lowered prices. This though is still in the future.

Today the reality is the instability and the unpredictability of pump prices. But even if it does provide stable and predictable price movement, solar energy is free and it is inexhaustible.

While the technology of tapping out this resource is not, homes that are solar powered are getting back dividends in terms of higher appraisal for their homes, confidence in not being surprised by power shortage and outage, not being dependent on the fluctuation in power prices and the definite advantage of having provided a better environment solution.

Today, the typical ways at tapping this resource usually are:

Through a Heliostat this are focusing collectors composed of mirrors that are aimed at the sun to collect the energy. The temperature that heliostats could provide reaches more that 4,000 degrees centigrade. This high temperature is sufficient for use even for furnaces.

Through Flat Plate Collectors employ a system of pipes. The water inside the pipes becomes heated and is ideal for heating purposes like schools, homes swimming pools, offices etc.

Through Solar Distillation instead of heat, this provides water. The mechanics is similar to the processes of plate collectors except that this is generally used to steam salt water. To do this, tanks and ducts are usually installed in surfaces that receive a good sun. Through the heat, the salt water turns into steam and when the steam condenses, the water is collected for regular use.

Through photovoltaic Cells These are the most common type of collecting solar energy characterized by solar panels installed in rooftops and other flat surfaces that there is a good sun, converting the power collected into electricity.

Unlike any products, whether refined or manufactured, the processing of solar energy do not need additional costs of energy to power it up. It is energy generating by itself. Except maybe for regular inspection and replacement of parts (when it employs a mechanical device), the tapping of solar energy is virtually maintenance free. Once installed, it could be used for as long as needed for the amount of energy, (depending on the capacity of the unit), which the owner requires.

Pros and Cons Of Residential Solar Energy System

Harnessing the power of the suns ray to create energy to power our house is very appealing. But the question is, Is everything about solar energy good?

Looking at the current price of fossil fuel-based electricity, it is quite impractical to convert into solar energy system. However, with the growing concern on the state of the earth, there is really a need to find other means of energy aside from what power plants are using right now. Where do you place yourself?

Whether you are an advocate of clean energy or simply care about where your finances go, looking at the pros and cons of residential solar energy system will help you decide on whether to convert or not.

Pros

Solar energy is free. Did you know that the earth absorbs 174 pettawatts of solar radiation? This means that we have more than enough source of free energy to power every house in the world. Unfortunately, most of our energy is still drawn from oil, gas and coal. But in recent years, there is a steady increase of demand for alternative and renewable energy like solar power. It is estimated that the demand for alternative sources of energy will increase by 53% between 1999 and 2020.

Solar energy is clean, renewable and sustainable. Because the energy created from the suns rays does not produce byproducts like those from fossil fuel power plants (sulfur dioxide, nitrogen oxide, mercury or carbon dioxide), it does not contribute to pollution. Accordingly, the increase in the use of solar energy and other alternative forms of energy will decrease the demand for greenhouse gases-producing power plants.

The price of photovoltaic cells is steadily decreasing. The demand for solar panels has risen by 57% in the United States in 2007 and is steadily increasing on a monthly basis. The increase in demand results to the improvement of solar technology as a whole. The prices of photovoltaic cells have declined on the average of 4% every year over the past 15 years.

Solar panels can be installed on most rooftops, eliminating the problem of finding a suitable place for installation. Solar panels require little or no maintenance. The original photovoltaic cells technology is used for most satellites orbiting our earth today which are not maintained at all. Many solar panel manufacturers give 25 to 40 years warranty on their products.

Because most areas of the country receive a substantial amount of sunlight throughout the year, solar panels can be installed anywhere.

Many states in the country give tax credits and rebates to households who want to install solar energy system. Check with your state government the cost of these incentives.

Cons

While the prices of PV cells are in constant decline, the cost of installation is substantially high compared to the current electric cost. But the good thing is, after your initial cash out, you dont have to pay every month on electric bills for the rest of your life.

On areas cities and areas with heavy pollution problem, solar energy may not work as fine. Weather can also affect the efficiency of solar energy. If it is raining, overcast weather or if there is a hurricane, the solar panels efficiency is decreased.

You are only producing energy during day time.

These are general pros and cons you might encounter when considering the conversion to solar energy system. It would be best if your decision is based on location, cost, budget, rebates, tax credits and practicality.

Facts About Solar Energy And Solar Power Plants

Facts about Solar Energy and Solar Power Plants

The earth receives more than enough energy from the sun in an hour to supply the worlds energy requirement for the whole year.

Unfortunately, only a tiny portion of it is harnessed and the world still relies on power plants that burn fossil fuels. The good thing, though, is that there is a constant increase in demand for solar energy; and over the years of continuous development, solar panels are much cheaper today.

During peak hours, the maximum power density that the sun can give is about 1kW per square meter. In other words, one square meter of solar panel can produce as much as 100 GWh (gigawatt hours) of electricity in one year. That is enough to power 50,000 houses.

If a solar power plant is build on 1% of the total land area of the Sahara desert, it will satisfy the worlds energy requirement.

The efficiency of solar panels depends on several factors such as pollution, clouds, temperature and atmospheric humidity.

Solar power plants are very similar to other conventional power plants with one significant difference: The majority of power plants draw their power from fossil fuels like oil, coal and gas.

When power plants burn fossil fuels, they produce greenhouse gases that contribute to global warming. Solar power plants or solar thermal power plants (or Concentrating Solar Power plants) utilize the power of the suns rays to generate electricity.

The process could not be any simpler. The solar panels receive heat from the sun, which will be reflected to the receiver. The receiver converts into steam the concentrated solar energy. The steam is stored on tanks which will be used to turn the turbines and generate electricity.

The whole process does not involve any burning of any fossil fuels. Thus, solar power plants do not contribute to global warming.

The increase in the use of solar energy will bring down the demand for oil.

Today, there are more than 10,000 households with solar energy systems and the number is constantly increasing. If the demand for solar energy as well as other forms of alternative energy, the demand for oil will drop and the cost fuel will likely to follow.

Residential solar energy system can turn your electric meter backwards. Given that you are connected on a power-grid, the excess energy that your solar energy system produces will go to the electric lines to be used by other homes. As a result, any excess energy you give will be reflected on your bills. Your electric supplier will even pay for the electricity you supplied.

Residential solar energy system can save you money.

While the initial cash out for installing solar energy system at home is big, the device will pay for itself in the long run. Not only you will save money on solar energy system, you also help the environment by not contributing to carbon emissions.

Solar energy systems are reliable and can last for a very long time.

PV cells are last from 25 to 40 years. Many manufacturers of solar panels give 25 years product warranty. This is the assurance that solar panels are very dependable.

In addition, solar panels require little or no maintenance and the can be installed on most places where there is sunlight throughout the year.

Why You Should Avoid Fuel Economy Products

A lot of things have happened due to the huge increases in gas prices that we have seen over the last several years. One of the more intriguing results has been the creation of a new market, which is the area of products that claim to increase gas mileage of cars, trucks, vans and sport utility vehicles alike. The manufacturers of these products are counting on a frustrating and fed up public to support their products in an effort to escape gas expenses. However, are these products worth the money or not?

First, you have to look at the things that the manufacturers of these products are boasting. They claim significant increases to fuel efficiency, but have they proven these claims? According to the Environmental Protection Agency (or EPA), they have not. The EPA is responsible for testing and certifying the fuel economy of vehicles, among other tasks. When you go to a car dealership and see on a sticker that a vehicle gets x miles per gallon, that is information obtained by testing done by the EPA.

The EPA also has tested a number of products that are supposed to increase gas mileage, but they have not found any yet do so significantly. That is one reason why you should use caution when shelling out money for these types of products. They may claim to do wonderful things, but if there are no proven results to back up the claims, they are not to be taken without a grain of salt.

It is also important to note that you do not have to buy expensive and costly products to increase your cars fuel efficiency. In fact, there are a nearly endless number of ways to increase gas mileage without spending a dime! For instance, you can make sure that you remove unneeded items from your car, so that you are not driving excess weight around. You can also do something as simple as use the cruise control more often, or avoid using the air conditioner, since it leads to more fuel usage than normal.

Other valuable tips include simply tweaking your driving style. If you can control your speed on the highway and try to coast when you know that you may have to stop shortly, you can see some improvements to your fuel economy. Often, you will notice huge changes by simply staying off the gas a bit when driving on the highway; far bigger changes than you would ever receive from pouring a product in your gas tank!

There are even more very simple tips, such as not leaving your car running when you leave it to go inside a store or gas station, or keeping your tires properly inflated, since not doing so can cost you some of your ideal gas mileage. Again, there is simply no shortage of easy and free ways to increase your vehicles fuel economy!

That is why you really do not need to rely on expensive products to increase your fuel economy. After all, there are so many ways to do so already, that unless you are taking advantage of all of them and still not getting the results you want, why would you pay for a product that supposedly does the same thing?

PPPPP

Word Count 550

Using Your Cars Features to Minimize Gas Use

The quest for relief from oppressive gas prices have led drivers on searches far and wide for ways to minimize the effect of the high prices on their wallets. However, many drivers are literally at arms length from ways to help themselves, and do not even know it! In fact, many features that come standard with new vehicles are not only convenient, but can help you to save on gas usage as well!

Since every gallon counts at todays gas prices, even the simplest improvements to gas mileage can lead to more money in your pockets. Although many products make gaudy claims to improve gas mileage drastically, most (if not all) of these claims are unproven. As usual, the best remedies are usually the simple and somewhat obvious ones. For instance, use your cars already existing features to ease up on your gas usage when you are driving around from place to place.

Cruise control is a great feature for many reasons. It can keep you from having to glance down at your speed all the time, for one thing. This means that you can avoid getting a speeding ticket by merely setting a consistent speed that will not get you pulled over. Using the cruise control feature effectively takes away any chance of you accidentally getting a heavy foot and an unintended speeding ticket as a result.

However, cruise control is also a great way to conserve gas! When you are on the highway, the cruise control can help your car to stay at a consistent speed. This means that you will not be accidentally increasing your speed and making the car periodically work harder. So, you see? Some of the best ways to conserve gasoline are also convenient methods of driving, anyway!

If you have an overdrive option for your car, you should use the overdrive gears whenever possible. Overdrive allows your engine to work much less than it would otherwise. Of course, the less your engine works, the less gasoline you use. In other words, overdrive alone will increase your vehicles fuel efficiency!

While you are at it, keep your eye on your RPM gauge, especially if you drive a manual transmission automobile. After all, any time your car is running in the high end of the RPM range, you are using more engine power than you need to, and thusly, more gas. Make sure that you are not staying in the low gears for too long before shifting, and spend as much time in the comfortable RPM range of higher gears as you can, since you will save yourself some gas in the process. The RPM gauge is another example of an under-utilized feature that, if used correctly, can help you to conserve gas.

While we are talking about features to use, lets also mention a feature that you should stay away from if you are trying to conserve gas: the air conditioning feature. If you turn on your cars air conditioning, your car will end up working much harder than usual, which means your car will consume more gas to fuel that work. The easy translation here is to avoid the air conditioning whenever you can. After all, it may be hot out, but you definitely do not want to have to sweat it out while pumping gas into your empty tank, right?

As you can see, there are many fairly basic features that can help you to keep your car going and away from the gas station. Even though some of these features may only have a small effect on your cars gas usage, if you follow all of the tips, it will add up. Again, with gas prices as high as they are now, even if you can save a gallon or two here and there, that can be a pretty substantial savings for you!

PPPPP

Word Count 650

Next Page »