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Sun Power

July 13, 2011 By: Admin Category: Solar Power

Using the Sun for Power – How It Works

Executive Summary about Sun Power by Richard Chapo

Generating electricity from the sun is all about converting sunlight into power. The technology behind solar systems is known as photovoltaic technology. Essentially, this technology involves using sunlight to create a chemical reaction. This process creates a direct current of electricity. The electricity is then converted to usable alternating current electricity and stored in a battery or fed into a utility grid system.

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Solar Fan

July 10, 2011 By: Admin Category: General

Using Solar Power Fans to Reduce Your Electricity Bills

Executive Summary about Solar Fan by Peter I. Wilson

Solar power fans are very easy to install, and also completely free to run. The majority of solar powered fans have a built in solar panel. Why Should I use Solar Power Fans in my Attic?

The solar powered fans do not require any extra power which would make your electricity bill more expensive. The other really good feature about solar powered fans is that they’re really easy to install. Newer homes are including these solar powered fans as standard, however if you own an older style home then you should consider installing these fans. You can buy fans suitable for fitting into older style homes.

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Solar Thermal Energy

July 09, 2011 By: Admin Category: Solar Cells, Solar Heater, Solar Panel

New Solar Thermal Device by Wake Forest University

Researchers at Wake Forest University developed a device that capable of capturing two forms of energy from the sun, photons and heat, simultaneously. According to their claims, this technology is the first in the world.

David Carroll, Ph.D., director of the Center for Nanotechnology and Molecular Materials at Wake Forest University, said, “It’s a systems approach to making your home ultra-efficient because the device collects both solar energy and heat,”

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Solar Applications

June 21, 2011 By: Admin Category: Solar Power

Solar Energy Applications

Solar energy technologies use energy from the sun to produce heat, light, hot water, electricity, and even cooling, for homes, commercial and industrial.

There are a variety of technological applications that have been developed to take advantage of solar energy. Technology can be read further below.

Photovoltaics System

Solar cells work by converting sunlight directly into electricity. The electrons in the semiconductor material, the material used to capture sunlight, will move when the sun’s energy in the form of photons hit it. Solar energy is forcing the electrons to move, occur continuously, and consequently there is also a continuous electricity production. Process, which turns sunlight (photons) into electricity (voltage), called the photovoltaic effect.

Solar Cell Module

Solar cells are usually organized into modules that each module can consist of 40 solar cells. Some modules can be arranged to form a PV line fitted with a fixed angle facing south. Or even could be placed in a sun-tracking device, to get more solar energy throughout the day. Several rows of PV could produce enough power for a house. As for industrial applications or power companies, hundreds of lines of PV can be linked to form one large PV systems and sufficient to meet the electricity needs.

Thin Film Solar Cell

Thin film solar cells use several layers of semiconductor material with a thickness in the micrometer scale. Technology allows to create solar cells integrated into rooftops to the skylights. Even solar cells are designed for applications having the same power with actual roof.

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Solar Efficiency

June 20, 2011 By: Admin Category: Solar Heater

A Key Element In Solar Water Heater – Efficiency

solar high efficiency Solar Efficiency

Solar energy most often associated with electricity production, while at the other side, the heating is also one form of solar energy use. Heating is not too difficult, in this case the efficiency is the key to maintaining your system from damage.

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Floating Solar

April 28, 2011 By: Admin Category: Solar Cells, Solar Panel, Solar Prototype

AQUASUN by Solaris Synergy and EDF Group

One of the things that a potential obstacle in the development of solar energy is limited space. All existing solar panels in a solar power generation should receive sunlight for at least the same intensity to produce electrical energy optimally. Therefore, all the solar panels should be installed in rows, which mean that also require large open space.

In addition, the performance of solar panels that are widely used today are still influenced by the temperature generated by the environment and direct sunlight. The higher the temperature, the performance of a solar panel will also decrease.

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Solar Window

August 23, 2010 By: Admin Category: Solar Architecture, Solar Cells

Transparent Photovoltaic Glass Window by Rainbow Solar Inc. (RSI)

Rainbow Solar Inc. (RSI) has produced a transparent, photovoltaic glass window producing power 80-250 watts. Although this is not the “first solar window,” it seems that the RSI has taken a big step forward.

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Solar Technologies

November 27, 2009 By: Admin Category: General

New Solar Technology

solar panel technology Solar Technologies

Solar technologies is now highly developed, with some progress is being developed to be used every day.

Below 10 Solar Technologies to note: Pyron Solar Triad Solar Technologies

Water Heating Solar Panel: Pyron Solar Triad uses a special design, short focal-length, lens in the acrylic concentration to reflect and accept the light, effectively concentrate 6.500 solar power in the form of a small light. The second lens capture light and focus on PV cells. According to related companies, HE Optics System produces 800 times more energy than the silicon solar cells.
Home Solar to Hydrogen Storage: An MIT professor Daniel Nocera, build a company this year to market a technology that can split water and store solar energy. The key of this company is to achieve a breakthrough solar energy to make solar power cheaper.
“The idea is to use solar panels to power the electrolyzer to produce hydrogen which would be stored in tanks. When people need electricity, the stored hydrogen would put through a fuel cell.”
Solar panel roof that can be printed and painted: If solar power is easy to install as to paint your roof with sunlight resistant paint, it will lower the standard for the installation of solar power at home. This technology called silicon ink, and according to the U.S. National Renewable Energy Laboratory, solar cells showed 18% energy savings.
Large Panel Solar Film: SunFab ™ system uses silicon thin film technology to market the largest and most powerful panels in the world and combines inexpensive material.
Organic Solar Concentrators: Engineers at MIT have created a method to transform glass into a high-tech solar concentrator, using color glass to collect and emit light which is usually missing from the panel surface. This technology can create a building for use with glass window film to gather strength. Other companies, GreenSun, has developed a panel of light color where it catch the other parts of the spectrum of the sun, and does not require direct sunlight to work.
Space Based Solar: Japanese are developing a giant space station with solar power generators to transmit solar power to earth from 36.000 km above the earth within the next 30 years. The Japanese Government supports $ 21 billion project, which includes a space station solar power with solar panels cubical 4km, save electric energy of 1 gigawatt, enough for 300,000 homes in Tokyo.
Solar Roads: Solar Roadways concept, will make a way to use glass panels to collect and distribute solar energy to illuminate the light at night and hot in winter, with enough remaining energy to light homes and businesses. Discoverer, Scott Brusaw, estimating each mile of solar panels can be illuminated 500 houses, and is expected to make a panel for 12×12 need cost about $ 5,000.
SunCatcher: Stirling Energy System, contains a solar concentrator in the bowl structure supported by a convex mirror, can be used in Arizona soon. SunCatcher using glass system fitted with a parabolic bowl for concentrating solar power in high-efficiency Stirling engine, with each bowl produces 25.000 watts.
Solar Nanotechnology: Research workers at McMaster University in Ontario has developed a light-absorbing nanowires formed of excellent photovoltaic materials in thin but durable carbon-nanotube fabric. They also use small particles in a flexible polyster film where can lead to solar cells that are both flexible and cheaper than today’s solar cells.
Grid Ready for Solar: Andalay AC solar energy panels, made with Akeena Solar technology, integrate the racking, wiring and electrical grounding components to the panel. According to the company, this will against the damage, a lot of money in saving for 30 year lifetime. Andalay AC solar energy panels produce a safe AC power, and can be a safe installation process for users.

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Solar Cell

November 24, 2009 By: Admin Category: Solar Cells

What Does Solar Cell Mean?

You may have seen a calculator that has a solar cell? calculator that does not need batteries, and in some cases do not even have the off button. As long as you have enough light, so the calculator can be on at any time and forever. You may have seen larger solar panels, such as in housing or traffic lights, haven’t you? In this article I will review how solar cell work so it can deliver the energy and drive an electronic device.

Today the demand for electricity has become a major requirement in all corners. The presence of power plants sometimes do not solve the need for electricity especially in remote areas where the terrain is always an excuse. Here an alternative energy that can be easily found in nature and can be used as an alternative free energy replacing conventional electricity, because it can turn on household electronics such as televisions, radios and lights.
solar cell p n Solar Cell
Solar cells made from pieces of a very small silicon coated with special chemicals to form the basis of solar cells. Solar cells generally have a minimum thickness of 0.3 mm is made from semiconductor materials incision with positive and negative poles. Each solar cell produces usually voltage 0.5 volts. Solar cells is an active element (semiconductor) that utilizes photovoltaic effect to transform solar energy into electrical energy.

solar cell diagram Solar Cell

Solar cells contain a connection (junction) between two thin layers made of semiconductor materials, each of which is known as a semiconductor type “P” (positive) and semiconductor type “N” (negative).

N-type semiconductor made of silicon crystals and there are also some other materials (typically phosphorus) within the limits that these materials can provide an excess of free electrons.

Electrons are sub atomic particles are negatively charged, so that the silicon alloy in this case known as N-type semiconductor (Negative). P-type semiconductor made of silicon crystal in which there is a small amount of other material (typically boron) which caused the shortage of material free electrons. Lack or loss of electrons is called a hole. Because there is no or lack of electrons electrically negative charged then the silicon alloys in this case as a semiconductor type-P (Positive).

Composition of a solar cell, the same as a diode, consisting of two layers, called PN junction. PN junction obtained by staining a pure semiconductor silicon (valence 4) with the impurity valence 3 on the left side, and one on the right impurity stained with valence 5.

The effect of the electric field in a PV cell

Solar Cell

Operation of a PV cell

Basic structure of a generic silicon PV cell

Thus formed on the left side that is not pure silicon again and called P type silicon, while the right side is called silicon type N. In the pure silicon there are two kinds of electrical charge carriers are balanced. Positive electric charge carriers called holes, while the negative are called electrons. After a desecration process, in the P type silicon formed holes (positive charge carriers) in a very large number compared with the electron. Therefore, in the P type silicon holes are majority charge carriers, while the electrons are minority carriers. Conversely, in the N type silicon is formed of electrons in a very large number so-called majority carriers, and holes called minority carriers.

In the silicon rod there was interaction between the P and the N. Therefore called the PN junction. When present, the P associated with the positive pole of a battery, while the negative polar associated with the N, then there is a relationship called “forward bias”.

Under forward bias, electrical currents arise in a series due to both types of charge carriers. So the electric current flowing in the PN junction is caused by the movement of electron and the movement of holes. An electric current is flowing in the direction of holes movement, but opposite direction with the movement of electrons. Just to further explain, electrons moving in the conductor material can lead to electrical energy. And electrical energy is called as an electric current that flows in the opposite direction to the movement of electrons.

But, if the P associated with negative pole of batteries and the N associated with positive pole, then now formed a relationship called “reverse bias”. In these circumstances, the hole (positive charge carriers) can be connected directly to the positive pole, while the electrons are also directly to the positive pole. So, clearly in the PN junction there is no movement of majority charge carriers either the holes or electrons. Meanwhile, the minority charge carriers (electrons) in the part P moves trying to reach the positive pole of the batteries. Similarly, the minority charge carriers (holes) in the N also moved to reach the negative pole. Therefore, in a state of reverse bias, in the PN junction there is also output current even in very small amounts (micro amperes). This current is often called the reverse saturation current or leakage current.

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Anything interesting in reverse bias. When the temperature of PN junction raised they will be able to enlarge leakage current. Means that if given the energy (heat), the minority charge carriers in the PN junction grows. Because the light is one form of energy, so if there is light that hit a PN junction may also produce enough energy to generate charge carriers. This symptoms are called photoconductive. Based on the photoconductive symptoms made of photodiode electronic components from PN junction.

In reverse bias, with increasing intensity of light that hit photodiode can increase the level of leakage current. Leakage currents can also be enlarged by increasing the battery voltage (reverse voltage), but the addition of leakage currents were not significant. When the batteries in the reverse bias circuit is removed and replaced with a load of resistance, the provision of light that can cause charge carriers both holes and electrons. If the illumination light is increased, current output was greater. Such symptoms are called photovoltaic. Light can provide enough energy to enlarge the number of holes in the P and the number of electrons on the N. Based on the symptoms of this photovoltaic electronic components can be created photovoltaic cell. Because usually the sun as a source of light, the photovoltaic cell is also called the solar cell (solar cells) or a solar energy converter.
So the solar cell is essentially a large photo diode and designed by referring to the photovoltaic symptoms so that could produce the greatest possible power. P type silicon is the very thin surface layer so that light can penetrate directly reach the junction. Part P is given ring-shaped nickel layer, as a positive output terminal. Under the P is the N type that is coated with nickel as well as the negative output terminal.

To obtain a large enough power required much of solar cells. Usually, solar cells arranged form the shape of the panel, and is called the photovoltaic panels (PV). PV as a source of electric power was first used in satellites. Then PV as an energy source for cars, so there are solar electric car. Now, in foreign countries, PV has started to be used as a roof or wall of the house. Sanyo has made even a semi-transparent PV that can be used as a substitute for glass.

After getting the output of the solar cell is a direct electrical current can be used to load utilized. But also the electric current can be used as a charge stored by the battery to be used when needed, especially at night because there was no sun.

If the solar cell is used for storage into the battery, then the resulting voltage magnitude must be above the battery specification. For example the battery used is 12 volts, the voltage produced by solar cell must be above 12 volts in order to perform charging.

We recommend that before carrying out the charging battery should be empty because the incoming flow will be filled with the maximum. The unit capacity of a battery is the Ampere-hour (Ah) and these characteristics are usually found on the label of a battery. For example a battery with 10 Ah capacity will fill up for 10 hours with the solar cell output currents of 1 Ampere.

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Home Solar

November 22, 2009 By: Admin Category: Solar Home

Top Guide Of Home Solar

home solar power Home Solar

Home solar power could actually fun, modern, and even interesting. Limited electricity does not mean sacrificing convenience and comfort provided by the air heater, water heater, and air conditioning.
The design of home solar will save electricity because the walls, windows and floors designed to absorb and store heat energy during the winter and distribute them. And dissipates heat during the summer. Therefore comfort provided by the heating and air conditioning can be displaced.

Here are five basic elements that must be interconnected with each other in designing a home solar.

home solar system

Collectors

The large glass windows that are directly related to the sun should be facing 30 degrees to the north and should not be obstructed by other buildings or log starting at 9 am to 3 pm.

Absorbent

Walls, floors and partitions are objects that can absorb and store heat.

Thermal mass

Thermal mass is a material that can store heat from solar energy and is located behind the surface of objects that can absorb heat like the floor.

Distribution

Heat that has been collected and stored, then distributed or in circulation from one room to another. Method to distribute this is conduction, convection and radiation.

Setting

Control tools should be used to utilize energy use that has been collected, such as a thermostat to check the temperature so that it can turn on and off the fan.

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Solar Power Home

October 05, 2009 By: Admin Category: Solar Home

What To Expect From Solar Power Home?

Many people, especially those who are beginners in solar technology may wonder how solar panels work. But first, what is the home solar panels? This is a solar-powered gadget that collect and use the energy from the sun through its rays and convert it into power.

Some people use solar panels home gadgets to act as an alternative source of energy for their small household, effectively complements the consumption of electricity from local utilities.

There are still homeowners who invest in residential solar panels are fully able to provide power to the house, run all appliances, water heaters and swimming pool. However, the cost is very expensive if you intend to own and install your own home solar panels that will work as the only source of daily strength. A solar panel unit actually has a very high price from a few thousand dollars.

How solar panels work can be answered simply. He has a photovoltaic cell in a panel that primarily works by collecting energy from sunlight that falls on them, then solar energy is converted into electrical energy for use at home.

You may very well consider this gadget as an investment, because you need to shell out large enough amount of money to buy and install them as your resource. It is a serious investment even if you only need to spend the money early, the amount needed is really great. After purchase you do not have to worry about this as the sun runs his own gadgets, making endless supply of electricity to your residence with the help, of course, the sun.

Many supporters of a clean environment and recommended the use of green house solar panels, if only because the energy that collects and converts power from the sun. Therefore, the power generated is clean and not harmful to the environment of the world. Likewise, you do not have to worry about running out of the sun’s energy for endless supply. Solar energy is a clean renewable energy, and is considered the best alternative energy is there.

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Solar Cooking

September 26, 2009 By: Admin Category: Solar Cooking

Solar Cooking Is Easy and Cheap Too

Did you know you can cook entire meals without any electricity or gas? It’s true. If you have access to the sun then you can cook with it.

Cooking with the power of the sun is commonly referred to as solar cooking, and you don’t need expensive gadgets or equipment to do this successfully either. Solar cooking requires sunlight of course, a bit of time, a few everyday items, and a willingness to experiment.

In the most basic form, solar cooking can be done easily as long as you have decently strong sunlight for a few hours. The stronger your sunlight is of course, the easier your solar cooking will be. In the desert southwestern areas of the United States for example, you can literally just lay food out in direct sunlight in the summer and it will cook quickly for you. We’re going to look at a little more than the basics here though.

There are two primary ways to cook food with solar power. One is to use what’s known as a parabolic cooker, and the other is to simply use reflecters.

A parabolic cooker is actually just anything you have on hand which has a slighly bowled, or parabolic shape to it. Round satellite dishes are excellent examples of this type of inward curved surface. The slight curve of a surface like this will allow you to concentrate the natural heat of the sun onto the food you’re cooking.

Parabolic cookers can be made with simple cardboard, or any slightly concaved material such as an old (small) sattelite dish, a small wok, or even a bent and curved trash can or barbecue lid. Using old materials for this is great because it allows you to recycle and it doesn’t usually cost a thing.

Most people choose to make their first solar oven with cardboard because it’s readily available, easy to work with, and free.

The best parabolic solar cooker will have slanted sides though, not upright ones. A slant of about 60 degrees outwards is ideal. Once you find the object you plan to use for your solar cooking, then you simply cover it with tin foil, mylar, or mirrors. Mirrors can actually be dangerous because too much heat is generated, so it’s best to start with aluminum foil. Cover your concaved object with the foil so that the shiny side is facing out. This will capture more of the sunlight shining down on your solar cooking, and help focus it onto your food.

Simple reflector style solar cookers are another popular option, and in many cases you don’t even have to put things together to make this work. With this style of solar cooking, you simply put a pot or pan out into direct sunlight and surround it on three sides with reflective material to help direct the solar heat to your food.

With either solar cooking design though, you’ll want to use either glass or dark metal cooking pots and pans. Dark metal helps attract and absorb the natural solar heat from the sun, and glass allow that solar heat to pass through easily yet stay trapped inside for cooking.

Depending upon the strength of the sunlight you have available and the solar cooker design you’re using, it can take anywhere from one to three hours to fully cook common meals for three to five people.

Of course you can also use regular solar panels or a solar power generator kit to power a more conventional energy efficient stove or oven when the sun isn’t strong enough to use your solar cooker, or if you prefer to cook foods in a more traditional manner.

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Solar Photovoltaic

August 29, 2009 By: Admin Category: Solar Cells

Solar Photovoltaic: Future Energy Sources

In general, energy sources are categorized into two parts namely non-renewable energy and renewable energy. Fossil energy sources are among the first group that the bulk of activity in the world using these conventional energy.

It is no doubt that the solar photovoltaic is one source of environmentally friendly energy and is very promising in the future, because there is no pollution produced during the process of energy conversion, and more widely available source of energy in nature, namely the sun.

Fundamental issues in solar cell technology is a very low efficiency in turning solar energy into electrical energy, which to date the highest efficiency can be achieved no more than 20%, and even then in a laboratory scale.

For that in developed countries, research on solar cell is a very big concern, especially with the issue of environmental clean.

From light into electricity

In a simple solar photovoltaic consists of the p-type and n junction semiconductor material (pn junction semiconductor) that if by the sun there will be a flow of electrons, electron flow is well known as the electric current flow. While the structure of the solar cell is as shown in Figure 1.

solar photovoltaic1 300x220 Solar Photovoltaic

Figure 1. Structure of a thin layer of solar photovoltaic in general

The main part of the energy changes of sunlight to electricity is the absorber, however, each layer is also very influential on the efficiency of the solar cell. Sunlight consists of various types of electromagnetic waves in a spectrum can be seen in figure 2. Therefore here absorber is expected to absorb as much solar radiation derived from sunlight.

Figure 2. The spectrum of solar radiation

More detail can be explained that the sun consists of a photon-photon, if it happen to solar cell surface material (absorber), will be absorbed, reflected or simply passed (see Figure 3), and only photons with certain energy level that will liberate electrons from atomic bonds, so that electrical current flows. Energy levels is called band-gap energy which is defined as the amount of energy required to discharge electrons out of its covalent bond so that there electric current flow. To free electron from its covalent bond, photon energy (hc/v) must be slightly larger or above than the band-gap energy. If the photon energy is too much of the energy band-gap, then the extra energy will be converted in the form of heat in a solar cell. Therefore it is important to the solar cell to regulate the materials used, namely by modifying the molecular structure of the semiconductor used.

solar photovoltaic3 300x118 Solar Photovoltaic

Figure 3. Radiative transition of solar photovoltaic

Of course, that the efficiency of solar cell can be high if the photons from sunlight to be absorbed that as much, then reduce reflection and increase recombination and conductivity of the material.

To be able to make that a photon is absorbed can be as much, then the absorber must have an energy band-gap with a wide range, making it possible to absorb sunlight so energy has a variety of these. One of the many materials being studied are known CuInSe2 is one of the direct semiconductor.

So many advantages of solar photovoltaic as described above was not a polemic and not just stop, saying there was a solar photovoltaic is true when the energy change process there is no pollution produced, but have we calculated how much pollution has been generated in the process manufacturing, small compared to the resulting efficiency. Now the challenge here is indeed how to increase efficiency, which would affect its economic value.

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Solar Heat

July 05, 2009 By: Admin Category: Solar Heater

Active and Passive Solar Heat

Utilization of solar energy in architecture can be done in two ways: passive and active. Utilization of passive do when solar power does not need to converted first into electricity. Deep utilization of the passive is also included on space heating (using the greenhouse gases) for the region with temperature of the air low, and water heating. Also, techniques to prevent heating the air in the room on the building in the area, including Tropical into the use of the passive type, where component of sunlight, which consists of: light and heat, only used on components’ light ‘it – the need for natural lighting in buildings.

Passive design strategies will be very different between the buildings that are on climate Tropical and climate Sub Tropical / cold. At the Tropical climate, direct radiation from the sun tend to be avoided by building in order to heat gain in the building to be low, so the increase of air temperature in the building can be prevented. While in Sub-Tropical climate, the design strategy is a passive step of the Tropical climate strategy in the acquisition of heat sun tend to be maximized (except in the summer), solar radiation through that fall directly on the building so that temperature increase occurs in the building, considering the air temperature around is low.

In utilizing the solar actively using the photovoltaic, should also simultaneously architect implement the strategy of passive design. Without the application of passive design strategies, energy use in buildings very likely remain high when visual and thermal comfort must be achieved. In situations such as this, the electric power comes from solar power conversion by solar cells does not become too much meaning. With dimensional solar cell panel which needs large electricity for the achievement of thermal comfort and visual on the building difficult to fulfill. Still electrical energy required for engine cooling air with a large capacity, because the air temperature in a high building, also required electricity for lights in the torch-lighting building a dark room when the strategy passive design that lead to the energy savings are not applied. Role of solar power to replace electricity necessary to achieve the building comfort (thermal and visual) finally failed because the building was not designed in such a form so that comfort achieved without the many electric energy consumption. Electricity generated by the photovoltaic possibility will not be large enough to cool down and illuminate the building. In other words passive design considerations for the use of energy in buildings in this case can not be ignored.

In the passive design, objectives of architecture work that would be achieved – that is comfortable and aesthetic, are generally made integral. Each step in the preparation of the components to form the jacket, simultaneous will result in the achievement of buildings comfort and aesthetic. Be not so with the case where the design of active solar cell panels can be arranged separate components with the preparation of building casing. In other words, the achievement of building aesthetic in active design done in a more flexible and separate with the strategy of comfort achievement, although in fact the architects are required to thought to integrate a comprehensive comfort needs with aesthetics – between needs using a solar cell panel with place them on the integrated shroud of the building so that the panels at once can be a building aesthetic element.

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Solar Technology

June 03, 2009 By: Admin Category: General

New Solar Technology Trends Around the World

Executive Summary about Solar Technology by Philip Richards

In the business of solar energy, the U.S. has not been the biggest buyer of solar power. While the U.S. does quite well exporting solar panels and solar technology, there are many Americans who still find the cost of panels very prohibitive. As the price of solar energy decreases, Europe has had a much higher demand for solar power than anywhere else in the world. Many European universities and campuses have rebuilt their dorms to run off solar energy. Most water heaters in Europe are solar-powered, even if the home doesn’t have a full solar panel system.

In Europe, it’s not just small residential power systems that are leading the way in solar energy dependence. Specifically, Italy, Greece and the Czech Republic are the newest customers of solar power systems. These countries have begun to purchase so much solar energy that their borders have seen changes in tariffs for solar panels. Japan, who’s also been at the forefront of solar panel imports, has picked up solar panel buying as the cost of gas and electricity rises. There are entire neighborhoods in Japan outfitted with residential solar power panels. For example, the neighborhood of Iwaki New Town has about 46 homes outfitted with full private solar power panels. Japan also uses solar energy in surprising places. Japan is the only country to power most of its vending machines with solar energy. Sharp, one of the largest solar panel producing companies in Japan estimates that by 2010, Japan will produce 4.8 million kWh of solar energy.

The Race For New Solar Technology Is On
Executive Summary about Solar Technology by Winifred Churchill

Companies around the world are beginning to seriously consider the POWER of solar power.

In Mexico a solar dish is being tested. The expanding and contracting hydrogen gas drives pistons which power a generator which creates electricity.
A new thin-film technology is being used on the windows of high-rise apartment buildings and skyscrapers to collect the sun’s power for use in the buildings. It is attractive and not nearly as expensive as regular solar panels.
Thin-film is attracting major manufacturers around the world.
New solar technology is using crystalline silicon cells for solar power panels.

One criticism of solar energy is that it cannot be relied upon for a steady supply of energy, but there are projects underway which are addressing that issue. In short, solar technology is going the way of the computer industry or cell phones. Now you get the same functionality available in personal computers on tiny cell phones. The new silicon cells for solar panels may bring a similar revolution to solar power making it a reliable, clean source of energy.

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