Space Solar Power
Space Solar Power System
Like the story of a fictional movie, but Japanese space agency plan so serious: In 2030 they will capture solar energy in space and sends it to Earth via laser or microwave.
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Outdoor Solar Lights
Outdoor Solar Lights Explained
Outdoor solar lights uses the identical action to generate power as the solar panels on your ceiling (or that you could set up on your ceiling, if you selected to). Essentially, it applies photovoltaic (PV) cells, which accumulate and switch solar energy into electrical energy. The PV cells apply semiconducting materials to engage the sun’s light, which interacts with the silicon and another components to produce electrical energy. The electrical energy runs over cables which power the battery, which in go powers the light. This is an highly simple explanation, but it will present you the common idea of how solar cells play. They can only make electrical energy from direct sunshine, which is why solar lighting wants a battery in order to be able to light up the dark.
So that the batteries to keep a constant charge, the solar light fixture should be in a position that meets full sunshine for almost of the daylight. If it just gets partial sunlight, because it’s barred by trees or other construction, or because your area has much of cloudy conditions, the batteries will run out earlier, and your fixture will supply light for a lower amount of time. Most outdoor solar lights fixtures own a backup power system which applies rechargeable batteries. Solar lights fixtures which apply a small amount of electrical energy frequently apply small AA Ni-Cad or NiMh batteries. But more strong solar lights fixtures (like head lights) apply a covered lead acid battery.
Photo detectors that automatically evaluate light degrees (like the kind that tells your photographic camera when to apply its flash) are constructed into the solar lights fixtures. They monitor light degrees and turn the fixture off at morning and on at nightfall. But get sure there are no artificial light sources (like a street lights or head light) that may contribute a wrong reading and forbid the light from turning on.
Outdoor solar lights usually utilizes LED bulbs. They apply less power than incandescent bulbs and, with a lifetime of around 20 years, are much longer-lasting. Until lately, solar lights overall has not been as bright as lighting powered straight by direct current electrical energy. But the earliest super bright LEDs can at present illuminate as well as halogen bulbs.
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New Solar Technology
Solar technologies is now highly developed, with some progress is being developed to be used every day.
Below 10 Solar Technologies to note:
- 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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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 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 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
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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Solar Generators
Solar generators can be useful for the home in various ways. If the power failure occurred, the owner of the house and family are not affected if they have a diesel generator, of course depending on the size. Solar generators can also be used to simply cut the cost of energy use everyday.
Full description after the photos….
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Benefits of Solar Water Heating
The fuel needed to heat water can be reduced by solar water heaters because it capture renewable energy, the sun. Many solar water heaters use a small solar electric (photovoltaic) module to power the pump needed to circulate the heat transfer fluid through the collector. Use of these modules allows solar water heater to operate even during a power outage.
Solar water heaters can also be used for hotels and motels, car washing, swimming pools, restaurants, and others.
There are many designs for solar water heaters. But, in general consists of three main components:
1. Solar collectors, which convert solar radiation into heat.
2. Heat exchanger / pump module, which transfers heat from solar collectors into drinking water.
3. Storage tank to store solar hot water.
The most common types of solar collectors used in solar water heaters is a flat plate and evacuated tube collectors. In both cases, one or more collectors are installed on the south facing slope or roof and connected to the storage tank. When there is enough sunlight, a heat transfer fluid, such as water or glycol, is pumped through the collector. When the fluid through the collector, he is heated by the sun. Fluid which is heated and then circulated to heat exchangers, which transfer energy into the water tank.
When the owner of the home using hot water, cold water from the main water into the bottom of the solar storage tank. Solar hot water at the top of the storage tank flows into the conventional water heater and then to the faucet. If the water at the top of the solar storage tank hot enough, no further heating is required. If the solar-heated water is not too hot (because the clouds long enough), a conventional water heaters heat water until the desired temperature.
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How To Build Your Own Solar Panels
How much are you paying for your electricity or gas bill? Would you like to save on the costs of using this energy? Then read through the following article and get an idea of what you could possibly do.
In this write up we will cover the following subjects, DIY Solar Electricity UK, making your own solar panels and Building Solar Panels instruction.
Building your own solar panels is really a sensible choice to make. Why: because firstly the price of electricity is increasing and the prices of solar panels are increasing too. So you would start saving money the minute you decide you will do this yourself unlike purchasing one. It’s not difficult building a panel its actually fun.
There is always the satisfaction that comes from knowing that you were able to do it on your own If you are good at it you might even try it as a weekend money generating project. Yes; that’s how long it normally takes about a weekend’s length and you have your own power.
This is one of the simplest tasks that you could undertake if you’re interested in saving power costs. You don’t have to worry about building your own solar panels as many of the systems are quite user friendly. They come with complete DIY guides. These guides have step by step pictures of how you can go about setting up your own panel. Most even come with instructional videos of methods.
To reduce some of the concerns you might probably have you should select a solar panel system that has a support center or toll free line you can make use of when you get to those finer details that need consulting. They should be able to tell you where and how you can find the components that are required and the prices that you should expect.
Did you also know that when you decide to undertake building your own solar panels and install them in your home you increase the value of your house by thousands? Isn’t that a great incentive to build panels in your house? If you choose to go green as they say, remember safety is important.
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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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How Solar Power Plant Installation
Solar Power Plant is a system of clean energy and produce electricity from sunlight. Also support the issue of global warming. Because energy is widely used by State Electricity Enterprise is the energy that can not be renewable (fossil) fuel such as kerosene, gas, coal, etc. Whereas current cost of fuel has begun to become dearer. If using the sun is free energy available abundant.
Installation and Operation is very easy, enduring long and a very inexpensive investment option to be public at this time. Can be used to meet electricity needs anywhere, especially in rural areas or areas that do not (not yet) reached by State Electricity Enterprise network.
Various Benefits of Using Solar Power Plant:
- Source of energy that never runs out and is very environmentally friendly
- Can be used anywhere, especially areas that have not yet reached by State Electricity Enterprise network
- No need to pay State Electricity Enterprise
- Without fuel and pollution-free
- Not require special treatment
- Free from all treatment
- Can be used to light a variety of electrical equipment, especially for lighting the lamp, radio, cassette, TV
- Can be used for emergency lighting when electricity of State Electricity Enterprise, have extinction (power off)
- And so on
Principles of Sun Power Plant
In the daylight the solar panel receives light (rays) of the sun and then converted into electricity through the Photovoltaic. Electricity generated by solar panels can be directly channeled to burden or stored in Electric Box System (EBS), before use to load, light, radio, TV etc.
At the night, where the solar panel does not generate electricity. Electricity that has been collected (stored) in a Electric Box System (EBS) will be used. To turn on electrical equipment, especially the lighting, etc.
Components of Solar Power Plant
1. Solar Panel:
Change the sunlight into electricity. Modular form of the solar panel provides the ease of the electricity needs for various scale of the needs.
2. Electric Box System (EBS):
- Set of traffic from the solar panel to the load
- Saving electric current generated by the solar panel before used to drive the load. Burden can be a lamp, electronic device and other equipment that requires electricity
- Very flexible in placement, you can take shift about.
The Design of Solar Power Plant – The Practical and Flexible
With a flexible design that can be possible to increase the capacity of electricity with solar panels only add (maximum 2 solar panel) for each package.
Installation HOW VERY EASY
- Place solar panel outside the house (roof, roof tile, or make your own tower, etc.) directly to the sunlight adjust with the situation / place / situation you secure place
- Pull cable from solar panel, and enter plug to EBS IN DC (There are DC IN and DC OUT) Plus ON-OFF if you use (do not forget to note the ON-OFF key If you use ON if not used right OFF). For a cable if less in length you can add/connect your own. Set EBS & cable installation neat and safely out of reach of children etc.
- If solar panel at work, on the EBS have red indicator lights, when charging energy from the panel to EBS will be full, red indicator light will turn on flicker, if it is full will be off. Green indicator lights mark the flow you are working.
- In the EBS (Electric Box System) have stop contact Out AC is useful to set the electronic equipment appropriate with watt and energy saved. You can also make your own plug combination for parallel needs. (Many stop contacts that have sold in the market with 2 holes, 4 holes, 6 holes, etc.) find the high quality.
- Ready to use to set the lights, tv, radio, etc
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Solar Electric Power Systems
Solar system has a mechanical and electrical components that can convert and store electrical energy that can be used to run your home. Start the calculation that you want to do is an energy audit. You need to evaluate the amount of power that will be needed per day preferably in kilowatts / hour. So the need to consider is the location of your home. That will determine the type of solar system you need is a factor such as climate, number of days of peak sunlight per day, average rainfall and number of days of peak sunlight per year. This calculation can be done by companies that make solar electricity system, and they will guide you in choosing solar electric power systems that are appropriate for your home.
Solar electric power system consists of several components. Some of the components that you will find in the solar electric power system is a primary collector, an inverter, a circuit breaker, battery, charge controller, for collectors and mount the display panel. Collector is a component that collects the sun’s energy. In normal cases, is a solar panel collectors. Collectors on the roof is still using the cushion. Location of solar panels is very important and must be in place where the sun will fall in the maximum on it. Is the ideal place solar panels on the north-south as it will ensure that even if the sun from east to west, the panel get the sun for longer duration.
Inverter is the component that will convert the 12 volt DC power to AC power. Based on the location of the power inverter can convert the 110 volt DC to 220 volt. One of the most important component is the circuit breaker or fuse box. This component has a switch and fuse is important to set the transfer energy from the solar panel to the battery or directly to the outlets. Circuit Breakers control the amount of power that will flow to the outlet and will act as security devices for the application.
If you want to have the storage, then you need to buy one or more batteries depending on your needs. If you have then you need a battery charge controller. This component will ensure you are not over or less in charging battery that will reduce the ability of the battery.
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