Comparison between the Amorphous and Crystalline Silicon Solar Panels

Solar panels are generally made from crystalline or amorphous silicon. Amorphous means that the solar cells does not have a crystal structure. When you see a lot of solar panels, you will notice a mosaic pattern. This mosaic is different silicon crystals that grow together in different orientations.

Amorphous type silicon solar panel do not have a crystal structure. Amorphous silicon is as a glass or obsidian. The silicon atoms are all frozen together in a random way. However, in crystalline type silicon solar panels, the silicon forms a lattice or regular repeating crystal structure.

Excess crystalline type solar cells is that they are generally more efficient. However, the crystals need time to grow and therefore more expensive to produce.

Amorphous silicon panels cheaper to produce, because no crystal structure that needs time to form. However, the amorphous solar panel is less efficient.

Some solar panel manufacturers such as Sanyo has been producing solar panels that use a combination of amorphous and crystalline silicon for maximum effect. High efficiency crystalline silicon can be used to capture most of the energy, but the various layers of amorphous silicon is added to capture what is left.

So, what amorphous construction silicon panels? They are solar panels made from a non-crystalline variety of silicon.

Note: When purchasing crystalline or amorphous silicon panel it is important to consider the cost with efficiency. A crystalline silicon panel may be very efficient, but cost can be overcome benefits. Amorphous panel less efficient, but they are also cheaper. So, there is always a balance between costs and benefits.

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Flat Collector

Flat collectors, and even concentrator is a tool used to collect solar radiation energy so that thermal energy produced can be used in more practical for a variety of processes. Flat solar collector consists of a transparent cover, absorber and insulator. Solar radiation that falls on the surface of the transparent material in the short wave will be forwarded by transparent material and then absorbed by absorber. Black color have an ability to absorb a larger radiation so that most of the sun radiation will be absorbed. Absorption of this radiation will create a high temperature absorber. Heat radiation emanated by absorber but in the form of long waves. Most of the transparent material has an opaque nature of long wave radiation and therefore part of the long wave radiation reflected back by this transparent material to the absorber. Some radiation is absorbed will be reflected back and the rest will experience the same process that is part reflected back to the absorber. Thus, the loss of heat due to radiation can be minimized by flat collector. In addition, the transparent cover also functions as a heat loss barrier carried by the air above the absorber to the environment.

Heat from the absorber is used through heat exchanger to the media of heat carrier. Media of heat carrier commonly used can be air or water. When using water as the media, absorber will conduct heat to the surface of the outside pipes. Then take heat conduction from the outside surface to the inside surface. With the process of convection, heat will move from the inside surface to the water that flows in the pipes, so the water temperature will increase. Water with a high temperature and then used in the other parts of the outside collectors flat. A similar process occurs when air is used as a medium of heat, but in this case the pipe is rarely used. The air above (or below) the absorber heated through convection due to direct contact with the absorber. High temperature air is then flowed out of collectors than used in processes that require hot air.

The performance of a solar collector will depend on the absorptivity characteristics of the absorber, transmissivity of transparent material, overall heat transfer coefficient of the insulator, the transparent material and the absorber.

Absorptivity is the portion of light that is absorbed by an object; transmissivity is the portion of light that is forwarded by an object, while the overall heat transfer coefficient is a power of heat transfer or the opposite of heat resistant.

Check out my other guide on solar house

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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

1. 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
2. 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.
3. 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.
4. 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.
5. Ready to use to set the lights, tv, radio, etc

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