Solar Panels For Homes

Solar power is basically a way of converting the radiant energy from the sun into more usable forms such as thermal energy and electricity. Radiant energy is so intense that even the low levels that penetrate the earth’s ozone layer still greatly exceed any possible energy that could be generated from all of the earth’s resources such as coal, gas and oil, combined into one. In 2005 it was estimated that the sun provided a continual source of energy to the earth of up to as much as 170,000 terawatts, which is far more than the entire global consumption was estimated at for the whole year.

Solar energy can be harnessed through a range of technology, the most common of which is photovoltaic solar panels. These panels are made up of solar cells, which contain the semiconductor material silicon. When silicon absorbs solar radiation some of its electrons are knocked free, which then form together into a type of current. Metal conductors placed throughout the solar cells collect the electron current, and channel it away to be used as electricity. The amount of power collected from these photovoltaic solar panels depends on the internal voltage of the cells and also the amount of solar radiation being absorbed.

Large scale commercial solar power is produced through the use of CPS technology, which involves using dish and mirror constructions to capture the solar energy and concentrate it intensely into high temperature thermal energy. This is then used to power steam generators, which convert the thermal heat into electricity and is a low cost technique, with relatively no harmful emissions or polluting by- products.

Power from the sun can of course only be harnessed during the day, and with current technology even a small amount of cloud cover or shading can dramatically reduce energy production. This is why it is important to store solar energy during optimum days of uninterrupted direct sunlight, so that it can be used at other ‘down times’. Although solar energy is a renewable and environmentally friendly resource, the batteries needed to store solar power from sources like photovoltaic solar panels are expensive and contain toxic materials that pollute the environment, and also have to be replaced every few years.

With current technology it is not always possible to heat a busy home solely with solar power, especially considering the amount of electrical devices and appliances the modern household contains. Most of the solar panels systems in domestic settings are mainly used for heating water for both central heating and washing/bathing, and some people also use solar power to heat private swimming pools. Solar power can help reduce your reliance on conventional energy sources, and also save you money on your annual electricity bills.

If you are interested in Solar Power, Download the FREE Report about Solar Power for Energy.

James Harris is a passionate freelance writer about renewable energy.

Thin Film Solar vs. Crystalline Solar Panels – home applications

Solar cell Photo Mugs Solar cell. Close-up of the surface of a solar(photovoltaic) cell, which converts light intoelectrical energy. The cell is made from silicon(blue), a semi-conductor. Because the silicon is asemi-conductor, the energy of photons of light isenough to release electrons from the silicon. Theelectrons are collected through a grid of wires(yellow), forming an electrical current. This cellcontains numero...

Technician holding a polycrystalline solar cell Photo Mugs Technician holding a polycrystalline silicon solarcell. The first silicon photovoltaic solar cells(seen in the background) were made by singlecrystals of silicon. They are characterised by arelatively high efficiency, up to 35, but at thesame time are very expensive to manufacture.Polycrystalline cells, also known as amorphoussilicon cells, are made by very small siliconcrystals. They are less eff...

Technician holding a polycrystalline solar cell Photo Mugs Technician holding a polycrystalline silicon solarcell. The first silicon photovoltaic solar cells(seen in the background) were made by singlecrystals of silicon. They are characterised by arelatively high efficiency, up to 35, but at thesame time are very expensive to manufacture.Polycrystalline cells, also known as amorphoussilicon cells, are made by very small siliconcrystals. They are less eff...

Photo Jigsaw Puzzle of Technician holding a polycrystalline solar cell from Science Photo Library Photo Puzzle, Technician holding a polycrystalline solar cell. Technician holding a polycrystalline silicon solarcell. The first silicon photovoltaic solar cells(seen in the background) were made by singlecrystals of silicon. They are characterised by arelatively high efficiency, up to 35, but at thesame time are very expensive to manufacture.Polycrystalline cells, also known as amorphoussilicon c...

Photo Jigsaw Puzzle of Technician holding a polycrystalline solar cell from Science Photo Library Photo Puzzle, Technician holding a polycrystalline solar cell. Technician holding a polycrystalline silicon solarcell. The first silicon photovoltaic solar cells(seen in the background) were made by singlecrystals of silicon. They are characterised by arelatively high efficiency, up to 35, but at thesame time are very expensive to manufacture.Polycrystalline cells, also known as amorphoussilicon c...

Photo Jigsaw Puzzle of Solar cell from Science Photo Library Photo Puzzle, Solar cell. Solar cell. Close-up of the surface of a solar(photovoltaic) cell, which converts light intoelectrical energy. The cell is made from silicon(blue), a semi-conductor. Because the silicon is asemi-conductor, the energy of photons of light isenough to release electrons from the silicon. Theelectrons are collected through a grid of wires(yellow), forming an electrical current...

The Physics of Solar Cells (Properties of Semiconductor Materials) $46.29 This book provides a comprehensive introduction to the physics of the photovoltaic cell. It is suitable for undergraduates, graduate students, and researchers new to the field. It covers: basic physics of semiconductors in photovoltaic devices; physical models of solar cell operation; characteristics and design of common types of solar cell; and approaches to increasing solar cell efficiency. The ...

Lifetime Spectroscopy: A Method of Defect Characterization in Silicon for Photovoltaic Applications (Springer Series in Materials Science) $243.09 Lifetime spectroscopy is one of the most sensitive diagnostic tools for the identification and analysis of impurities in semiconductors. Since it is based on the recombination process, it provides insight into precisely those defects that are relevant to semiconductor devices such as solar cells. This book introduces a transparent modeling procedure that allows a detailed theoretical evaluation of...

Thin Film Solar Cells: Fabrication, Characterization and Applications (Wiley Series in Materials for Electronic & Optoelectronic Applications) $172.80 Thin-film solar cells are either emerging or about to emerge from the research laboratory to become commercially available devices finding practical various applications. Currently no textbook outlining the basic theoretical background, methods of fabrication and applications currently exist. Thus, this book aims to present for the first time an in-depth overview of this topic covering a broad ran...

Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel with Sharp Module $499.95 High-efficiency polycrystalline cells are ideal for areas with high sun exposure. 12 Volt solar battery charger delivers 80 Watts for homes, boats, RVs and back-up power. Also designer for 12V battery charging and solar power stations, pumps, beacons, lighting equipment and more! Works in all weather conditions. Completely weather resistant. Requires 30 Amp controller Item# 336615 (sold separately...