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Importance of Solar Power Contractors

Solar power can be direct as with photovoltaic or indirect as with concentrating solar power. All over the world people use solar energy for different purposes such as heating, cooking and now it is used to make electricity.

Author: soniya
Date: Jan 29, 2010 - 3:52:41 AM

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Solar power: Solar power is the generation of electricity from the sun. Solar power can be direct as with photovoltaic or indirect as with concentrating solar power. All over the world people use solar energy for different purposes such as heating, cooking and now it is used to make electricity. Initially photovoltaic where used to power small size applications such as calculators powered by a single solar cell and now it’s been used off-grid homes powered by a photovoltaic array. Solar power is an alternative and viable renewable source of energy for our houses. Developing countries have started building solar power plants.

Solar Roof Shingles: Solar roof shingles are photovoltaic cells that produce electricity from sunlight. At an average 86 inch long and 12 inch width and they have an exposed area of 5 inch. However, the model vary according to there requirement. Working of photovoltaic tiles Photovoltaic tiles work by converting sunlight to electricity that can be used in our houses. Photovoltaic cells consist of a positive and a negative silicon slice placed under a thin glass slice. As the proton present in the sunlight falls on the photovoltaic cell they knock the neutrons off the silicon.

The silicon attracts the negatively charged free neutrons but they are trapped by the magnetic field that is formed from the opposing fields. Wires on the silicon catch these neutrons and thus produce electric current when connected to a circuit. The current produce will be direct current and hence it must be passed through an inverter to produce alternative current for home use. Energy storage method Solar powers are intermittent energy source and hence it must be stored when they are available. Solar power is not available at night and it is therefore necessary to store them for continuous supply of electricity.

Thermal mass system can store solar energy in form of heat at domestically useful temperature. Thermal mass system generally use materials with high specific hear capacity. Solar power contractors Installing a solar power system is relatively expensive. And hence it is necessary to choose the right solar power contractors. Solar power contractor that you choose must have license and the required experience. Before selecting a Solar power contractor there are certain things to be noted: It is better to enquire several contractors before choosing one. Checking with the local contract association for better result. Ask for references. Once you have selected the contractor it is necessary to find out if he will do the work from starting to end or will there be any subcontractors involved. Solar panels need to be properly wired to the converter box and its better to choose a contractor who has some electrical knowledge.

Solar power contractor can help you in: Designs solar power system for your home: Most contractors will designs the required solar system depending upon how much you are ready to spend. Get all the required permits: Contractors can arrange the permits required faster. Project schedule: Contractors work according to the schedule that you ask for. Dealing with inspection: Solar contractors will be responsible for the safety of the system. He will have to come and fix the problem if the inspection fails. Quality control: An experienced contractor will make sure everything is in place and in order. And will also check air and water supply on the roof.

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