Here comes the sun, make the most of the renewable energy. This is a clean and environmentally sound means of gathering solar energy. Solar energy has been used since prehistoric times, but in a most primitive manner. In the coming years it is expected that millions of households in the world will be using solar energy as the trends.

Solar energy collected through Do It Yourself solar panels could be used to meet the electricity requirements. Through Solar Photovoltaic (SPV) cells, solar radiation gets converted into DC electricity directly. This electricity could be either used as it is or can be stored in the battery. This stored electrical energy then can be used at night.

SPV can be used for a number of applications such as domestic lighting, street lighting, village electrification, water pumping, desalination of salty water, powering of remote telecommunication repeater stations and railway signals.

Solar energy or green electricity thus created could be used for Cooking/Heating, Drying/Timber seasoning, Distillation, Electricity/Power generation, Cooling, Refrigeration, Cold storage.

Many small time farmers and rural people could benefit by building solar panels at home. This would help them in saving huge cost invested in purchasing readymade Solar Energy Panel. In agrarian country Solar Energy Panels come as a boon. Constructing Solar Energy Panel does not call for expert knowledge.

Step-by-Step guides available in the market would provide end to end subject knowledge, about raw materials needed to build a solar energy panel and instruction on construction. They also suggest were the raw materials could be procured.

Affordable Solar Energy

The cost of obtaining solar energy is decreasing. The cost of solar energy systems and the cost of solar energy panels is more reachable than ever before. Essentially, the cost of solar energy panels is less in price and produce more electricity. This is only natural to occur seeing the trend of technology. Things such as the cost of installing solar energy starts off expensive and then gradually drops. The cost of solar wind generators can be found for less than $800.00, while an the cost of an entire solar energy system can be purchased for less than $12,000.00.

There are many prices to think about based on your needs. Whether you are looking for a solar water heater, solar panels, solar wall heaters ($600-$800.), or generator, price ranges can peak at $4000.00 or less for the heaters, or more based on what you are buying, like the panels which go up with wattage.

The years of the big spenders having the solar energy is pretty much over. Prices of solar energy have come down to earth so much that even the normal everyday homeowner can get in on it. Residential solar energy costs are getting lower all the time. You can search many invaluable websites that have everything from solar panels, to solar wind generators, storage, the entire solar energy system itself. Some things are pricey, yes, but overall, what I have seen out there is fairly reasonable, and when it is installed, there is just something very appealing about it that makes the initial upfront cost worth it.

Costs of solar energy will involve the purchase of solar energy panels which can generate 50-500 watts a piece, the solar energy generator for transforming solar energy into electricity usable by the homeowners. Solar energy panels can power many things in your home. Think about all your lights, and their individual wattage. Calculate the watts generated by a solar panel. These are some of the things you need to think about. A home solar energy system can be explained by a professional, as they assess your needs. They can further explain all the energy assessments needed fro configuring your home solar energy system.

Their are many things you can do to put into practice for saving energy. If you do not ahve a home yet, pick up some of the energy saving light bulbs that all utility companies offer for free! Leave your AC on when needed, and program it in cycles when you’re not at home. There are appliances, lights, computers that can be turned off or on low to conserve energy. When you do get that dream home, your mindset will be energy saving and hopefully cost savings on solar energy!

Whatever your decision. do your homework. Study solar energy, its benefits, non-benefits, the pros and cons. Ask yourself, will it become a necessity in the future? Should I just invest in it now? Do not jump into it blindly. Remember, knowledge is power. Use it to your advantage.

The major known utilization of green solar power is to cutback spending. Though green solar energy components come with a huge opening investment, but you will rip the benefits in years to come. This is so because it will provide additional electricity for your home use or all of the day-to-day electricity which your home requires. If you make your own solar panel, partaking in government refund and net metering, that is a system whereby you sell the electricity which you do not need to utility power firms. It will aid to lower the expenses of running a solar energy system, that is one of the economic benefits of using solar power. Again, solar energy systems need small to no upkeep maintenance after you have finished setting it up, due to the fact that majority of them require no moving components.

The environmental benefit of using green solar energy is because it is environmental friendly. Considering the fact that our planet is in peril, that is the polar ice caps are decreasing and climate change is producing tragic storms worldwide, it is necessary we take action to reduce global warming and our reliance on fossil fuels. Solar power produces a clean energy, due to the fact that it produces small pollution and it doesn’t add to global warming.

Green solar energy systems can be used by homes and businesses alike. If going solar cannot meet all of your energy needs, it can certainly reduce them. Utilizing green solar energy can save you money, but its greatest benefit is to the environment and our future.

Earth 4 Energy is a DIY manual which consists of videos and guides which you can easily use to build your own solar panel from home for under $200. If you want to live off the grid, now is your opportunity to build yours for less than the price of commercial made ones.

Every day, the Earth receives more energy from the sun than mankind uses in a year. Still, solar energy remains a tiny sliver in the global energy mix. Falling prices and better efficiency could change this, but can it happen fast enough?

When it comes to meeting energy needs, humanity has not been able to eliminate the middle man. The energy we use today comes from the sun, but we get it indirectly. Sunrays fed countless generations of plants and organisms millions of years ago, which we now use to burn to produce electricity, heat our homes, and run our cars. Its heat also strikes up the winds that we use to sail ships and run turbines. Despite our dependence on the sun, mankind has still not fully realized the potential of harnessing the sun’s vast energy directly.

Worldwide Importance and Future Trends

Even with steady annual growth, the International Energy Agency says solar energy – combined with wind and geothermal power – still only supplies less than one percent of the world’s energy. In Germany, the global solar market leader, solar supplies around 0.3 percent of national electricity demand; in the United States, it supplies less than 0.1 percent.

The UN’s annual “Global Trends in Sustainable Development” report said that the solar sector attracted 16 percent of the 70 billion U.S. dollars invested in renewable technology in 2006 – behind wind (38 percent) and biofuels (26 percent). According to the World Energy Council, solar water heating market is growing at a rate of around 20 percent a year, and solar PV at 35 percent.

If the costs of solar technology continue to drop, it has a chance to compete with other forms of energy production. In places like sunny California, solar has already reached “grid parity,” which means the costs of producing solar power are now competitive with conventional energy production even without government subsidies. Sinking production costs would allow solar power to eventually join or even replace coal, gas, and oil as a primary energy source by the end of the century, which some experts say is possible.

Global Resources and Producers

The amount of solar energy that reaches the Earth’s surface every 20 days exceeds the energy trapped up in all of the planet’s coal, oil, and natural gas reserves. The trick is finding cost-effective and efficient ways of converting this abundant resource into usable energy.

Currently, there are two main ways of doing so. Photovoltaic (PV) panels, thin pieces of crystalline silicon, transfer sunlight directly into electricity. Solar thermal collectors, on the other hand, are used to heat water for domestic or industrial use and to run steam power plants.

Germany is the world’s leading producer of PV and solar heating technology and energy. In 2006 alone, 968 Megawatts (MW) of PV was installed in Germany. Japan, which added 292 MW last year, is also an important market and exporter of PV technology. China is aggressively adding solar systems to its energy mix. The country already consumes half of all solar-heated water in the world, and aims to increase solar water heater coverage by 50 percent by 2010. China is also emerging as an important producer and consumer of PV cells, which the government is integrating in remote and urban area.

Energy Output

The energy output of photovoltaic and solar heating depends on the size location of the system. Most areas receive ample sunlight, but deserts that seldom get cloud cover are better suited for solar energy production.

Standard PV cells have an energy conversion rate of 6 to 8 percent, meaning that 6 to 8 percent of all solar power absorbed is turned into energy. Some prototypes have already achieved conversion rates of more than 40 percent, but are still too expensive for mass-market production. Solar heaters utilize solar collectors that are significantly more efficient. Current collectors turn between 60 to 70 percent of absorbed sunlight into heat.

Concentrated solar thermal systems use mirrors to reflect sunlight onto a tower, producing extremely hot temperatures to boil water or other fluids and produce steam to drive a thermal power plant. An 11 MW concentrating solar power plant was completed near Seville, Spain in March 2007. A 154 MW facility is planned in Australia, and a 500 MW system in California’s Mojave Desert.

Environmental Impact and Drawbacks

Manufacturing and installing solar systems requires energy, and as with almost any industrial activity, involves handling hazardous materials, such as arsenic and cadmium. Mass production of PV cells is sometimes marred by shortages of quality silicon. Large-scale solar power plants also take up lots of land.

Overall, however, the environmental impacts of switching to solar energy are positive. Solar heaters require significantly less fossil energy input than natural gas and electric systems. PV systems are cleaner energy producers compared to coal and oil. Greenhouse gas emissions of solar PV plant including production and installation are eight times less than that of a coal-fired plant.

The initial costs of solar heating and PV systems, however, prevent many homeowners from installing them. But falling costs and subsidies have helped sustain market growth in some countries. Like with wind turbines, another technical problem is effectively storing solar energy to provide power throughout nights and cloudy days.

A long time ago, we believed people who used solar energy to heat their homes pretty much as fruitcakes.  But today, they have the last laugh.  Each day we watch the price of oil grow and fall.  Never knowing where it is going to be tomorrow.  Then there is the trouble with global warming stairing us in the face.  People who practice the alternative energy source like solar and wind energy are the people who are saving and not to worring about the rise and fall of oil for heating and cooling or running their homes.

A lot of new constructions are being developed with some consideration to solar energy as the energy crisis as well as the concerns about the environment are forefront in the minds of many individuals.  There are many uses for solar energy, other than heating.  There are other things that solar can be used for other than heating our households. We can use it to run our appliance’s in our homes and also run some electronic gizmo’s.   We are all familiar with solar powered calculators.  In most cases there is some type of rechargable storage device, but in some cases there is not even a battery needed.  So let’s use this to power other things.

Don’t forget there is the wind that can be controlled also to make energy. With that and solar, you can really have an impact on your energy cost and start to save in a big way.  Purposes for solar energy range from warming a house and running a car to actually cleaning H2O in third world nations that can end up saving lives.  As you can see there are numerous purposes for solar and wind energy.

To keep solar and wind energy active and going forward, thought has to be given to the price of producing this power. We also have to remember to consider the eco system as well.  There are two types of people, the one’s who wish to save money using solar power.  Then there are the one’s concerned about the environment.  But both types of people are in agreement that solar and wind energy can be an solution to both of their concerns.

Solar energy facts for kids in New Zealand are considered unnecessary by some. When winter hovers over New Zealand, it may seem that day after day is cloudy and grey – especially in some parts of New Zealand. On such days, it is difficult to imagine that solar energy could supply enough electricity for a New Zealand home. Most areas of New Zealand, however, have plenty of solar energy that can be harnessed.

Solar energy can be calculated with a map such as the one on the Sun Wize website. This is called a world solar insolation map. “Insolation” means it is exposed to the sun’s rays. The map shows how many hours of each day a country is exposed to the sun’s rays – in the worst month of the year. In other words, the map shows how much solar energy the country gets each day.

When you find New Zealand on a world solar insolation map, you will see that most of the country gets between 3 and 5 hours of solar energy each day. Remember that 3 to 5 hours is the amount of solar energy in the worst month! On average, counting good and bad days, New Zealand gets approximately 2000 hours of bright sunshine each year.

Solar Energy Facts for Kids

Solar energy facts for kids might include many things, depending on the age of the children involved. A small child of 6 years might understand only simple concepts such as the heat generated by solar energy. Older children of 14 to 17 can grasp the technology of solar panels and generators, and how they convert solar energy to electrical power.

We will not attempt to sort the following facts by age or importance, but simply present them as a collection of ideas to be explored.

* In New Zealand, a solar energy water heating system can save as much as 75 per cent of your family’s water heating costs.

* The word “photovoltaic” comes 2 words. “Photo” refers to light and “voltaic” refers to electricity. A photovoltaic array system changes solar energy collected from sunlight into electricity.

* Cover the roofs of every New Zealand home in photovoltaic (PV) panels, and together they would convert enough solar energy into power each year to supply more than 25 per cent of New Zealand’s needed electricity.

* Solar energy can provide the total electricity needed by a normal three bedroom New Zealand home that is energy efficient.

* Solar energy is quiet, easy to install, and needs little upkeep from the New Zealand home owner.

* Any New Zealand child can, with a little help, build a solar energy stove to cook a small banger.

* Solar energy has been used for many years by New Zealand mums to dry clothing outdoors.

* Germany, a country that is much cloudier than New Zealand, converts solar energy into electricity more than any other country does.

* Solar energy is greater than you might think on cloudy days, since the sunlight that gets through reflects off the bottoms of the clouds.

* Solar energy can turn ocean water into healthy drinking water.

* Solar energy can be used on boats and ships around New Zealand.

* Solar energy is absolutely free to New Zealanders. No other country can charge money for it.

Suggestion for New Zealand teachers: Have a contest to see which group of students can discover the most solar energy facts for kids. Younger children will have fun simply listing solar energy facts for kids. Older students might be required to expand each discovery statement.

Disclaimer: The author receives no compensation from any company mentioned in this article. The information is presented solely for educational purposes.

The idea of solar energy started over 100 years ago, but the technology hasn’t been as great as it is until today. With companies finding new ways to use renewable energy resources, solar energy is going to be more important. Solar energy is one of the best renewable energy sources because it is so abundant. We’ll never have a sun drought, we’ll never have to wait for the sun to pick up nor will we have to drill into earth like with many of the other renewable energy resources. However, to use solar power, we need solar panels. Solar panels are important because without them the idea of solar energy would be useless.

Solar panels work in two different ways. First there are solar cells that convert light energy into electricity. This is a little on the expensive side, which doesn’t make it as popular as the way energy is used now. However, they are found on a number of products. Space shuttles and satellites use them. Parts of these are covered in solar panels. These objects have the space for all the panels it would need. Another way to use solar panels is by using the heat from the sun. The solar panel attracts the heat and heats up a liquid with a low boiling point. This liquid is transferred to water where steam is used in a generator. This process is simple, cheap and effective.

Solar panels come in different forms and there is no exact shape for one. There are different versions of solar power as well. There is concentrated solar power, which is a sea of mirrors combined together to attract the sun’s heat. These are usually out in the desert and use thermal energy to create ways to heat homes, heat water and power machines. This type of energy is a little more expensive than wind energy, but costs less than photovoltaic energy, which is commonly used in households.

It has become cost effective to use solar power to heat and power your home. In the beginning stages of the production of solar panels, it took adventurous people to take a chance on it. Since the early stages, solar panels have been modified to attract to sun better. Different types of metal have been tested to see what works best. In the concentrated solar panels, which is also known as parabolic trough solar, aluminum is the best overall metal for its ability to attract the sun and sturdiness in an outside environment. The technology is getting cheaper for residents to use as the process gets more refined.

Solar panels are important to the evolution of the society. It is important for countries, such as the United States, to move away from the dependency on foreign oil and to use energy resources that are readily available. No one can deny the sun isn’t a steady resource. Even on cloudy days, there should be enough light and leftover energy to power homes through the day. More countries have to discover ways to use solar panels as part of everyday life. The problem is it is still cheaper to use fossil fuels in the short term. In the long run, solar panels will be everywhere making energy cheaper than before.

Global warming impact to our quality and cost of living is large and very catastrophic. Homeowners are well aware of the increasing energy costs to heat, cool and illuminate their homes. The increasing costs of oil and other fossil fuels are daily headlines. The insatiable demand for energy to fuel world growth guarantees that the cost of these limited fuels will continue to increase. Political/economic forces will determine the rate of increase for fossil fuels. In addition, the increasing cost of global warming using fossil fuels is slowly being recognized.

The world is slowly beginning to understand the urgent need for renewable energy sources. However, each of these alternative energy sources brings major advantages and disadvantages. An example is wind generated energy. Wind energy is available to the whole world and generates electricity competitively with fossil fuels. The technology is understood and easy to apply. But, there are big objections to a windmill in “my back yard”. Also, the number of birds and bats that will be crushed with wind power generation is not a warming thought. Wind technology will be a component of our energy solution. However, because of the above concerns, we need other major solutions to meet our demand for energy sources.

This search leads us to solar energy. The amount of sun energy striking our world in one day is sufficient to supply our energy demands for a year. We will not run out of this source in the foreseeable future. The major barrier to harnessing solar energy has been cost and convenience. For example, drying clothes in a dryer is easier than hanging clothes on an outside line, thus convenience precluded efforts to find more energy efficiency. We can convert solar energy to electricity but with a major capital cost. Greater acceptance and use of solar energy will lead to lower cost.

Solar Energy:

Energy from solar energy can be divided into two major categories:

Passive Solar Energy: This technology ranges from clothes drying in the sun to solar heating for hot water and many other passive techniques. All are important for our present and future quality of life. The technology is well understood and can be implemented as economics and space conditions allow.

Active Solar Energy: One of the active solar energy technologies is converting solar energy directly into electricity. It is called photovoltaic cell or PV. This is a device that converts light into electricity using the photoelectric effect. The first working solar cells were constructed by Charles Fritts in 1883. These prototype cells were made of selenium and achieved efficiencies around one percent. The silicon solar cell was created in 1954. The solar cell has benefited from the development of silicon semiconductors.

Physics of Active Solar Energy:

The physics of photon to electricity conversion is well understood by physicists. The basic model is of a photon from the sun which strikes the cell material and excites electrons that emit electricity. This model is simple compared to the complexity of modern day semiconductors. The major variables of PV electrical generation are cell material and impurities in the cell material.

Manufacturing Technology for Active Solar Energy:

Primarily single crystal, high purity silicon has been used to generate photon to electricity conversion. The manufacturing techniques for single crystal silicon and limited quantities of pure silicon impose a high cost for PV devices. Shortages of refined silicon have been hampering production worldwide since late 2004. This shortage persists to this date and has slowed PV growth. New materials are starting to come forward which should lower the PV materials hurdle.

Efficiency growth of Active Solar Energy:

Since the silicon PV invention in 1954, cheaper fossil fuel prices largely removed solar power from the public consciousness. Annual growth of electrical generation by PV ranged from 10 to 20% percent throughout the 1980′s and 1990′s. Worldwide installation of PV reached 1000 megawatts in 1999. Manufacturing costs for PV arrays has been dropping 3 to 5% over the recent years. This cost drop began to expand the use of PV electricity generation. Total peak power of installed PV was around 6000 megawatts at the end of 2006. Installed PV is projected to increase to over 9,000 megawatts in 2007. The average lowest retail cost of large photovoltaic arrays has declined from $7.50 to $4.00 per watt between 1990 and 2005.

PV materials have also been improving in recent years. The most recent materials approach is to process discrete cells on silicon wafers cut from multi crystalline ribbons which form thin films. This approach is the least expensive of known technologies. This group of technologies includes amorphous silicon cells deposited on stainless-steel ribbon, cadmium telluride (CdTe) cells deposited on glass, and copper indium gallium dielenide (CIGS) alloy cells deposited on either glass or stainless steel substrates. The efficiencies of these new materials are currently at 20%. Many researchers are working to improve the efficiencies. An added advantage of the new thin films is that they are flexible and are currently being used in roofing materials.

Current Trends in Generating Active Solar Energy:

Commercial businesses like Google, IBM, BJ’s Wholesale, Estee Lauder, Kohls, Target, Tiffany & Co., Wal-Mart are installing PV solar energy. From “big box” discount giants to high end commercial businesses PV solar energy is finding acceptance in 2007. The most recent retail-outfitter to become part of this trend is Macy’s, which announced earlier this month that it will install solar powered systems on 26 stores throughout California. These leading companies are turning to solar power because it makes good business sense and supports their environmental initiative. Creative financial arrangements allow these companies to afford the upfront capital costs and payback their loans with energy savings. So what does all this mean to the average home owner? PV Cost per Kilowatt (kWh):

In the California market, where state incentives and net metering are in place, PV electricity prices are dipping below 11¢/kWh, on par with some utility-delivered power. Moreover, according to the U.S. PV Industry Roadmap, solar electricity will continue this trend and become competitive by 2010 for most domestic markets. The outlook is very positive for PV generation of electricity. Once the capital investment is made, the cost of PV electricity is equivalent to fossil fuels and will continue to decrease.

Cost of PV Installation:

The cost of installation is the major barrier that has to be overcome for widespread PV acceptance. Around 59% of world solar product sales installed in the last five years were applications that are tied to the electricity grid. Solar energy prices in these applications are 5-20 times more expensive than the cheapest source of conventional electricity generation. This premium is well beyond the reach of the average home owner.

Fortunately, there are financial models coming forward to enable the consumer to finance PV solar installation and pay for this installation with the electrical savings. In order to make these financial models successful, federal and state incentives are needed and the installation should be connected to the electrical grid. These connections allow the home owner to sell back electricity when excessive amounts are available and to receive electricity when solar conditions do not allow sufficient electricity. Only fifty percent of our states have modernized to allow on-grid PV solar energy.

Berkeley, California is leading the way to enable it citizens to save electrical cost and meet environmental needs. Here is how their plan works. A property owner hires a city-approved solar installer, who determines the best solar system for the property, depending on energy use. Most residential solar panel systems in the city cost from $15,000 to $20,000.

The city will pay the contractor for the system and its installation, minus any applicable state and federal rebates, and would add an assessment to the property owner’s tax bill to pay for the system. The extra tax would include administrative fees and interest, which would be lower than what the property owner could obtain on their own, because the city would secure low-interest bonds and loans. The tax would stay with the property even if the owner sold, although the owner would have to leave the solar panels. The property owner would save money on monthly Pacific Gas & Electric bills because electricity generated by the solar panels would partly replace electricity delivered by the utility. After the assessment expired, the solar panels, of a simple technology that requires little or no maintenance, would continue to partly replace PG&E electricity.

The Berkeley plan is a map for the rest of the world to allow us affordable electricity and meet our responsibilities to the environment.