Archive for January 26th, 2009

home solar energy
from Corrado Vinci

To truly understand the benefits of green solar energy, you must first understand how solar energy is harnessed. There are two types of green solar energy-thermal and light. Thermal energy is considered passive solar. This type of green solar energy is harnessed through the design and materials used to construct a building. By integrating south facing windows and materials that retain heat, like brick and stone, you can lower your energy needs and build an energy efficient structure. The thermal energy produced by green solar energy is also used to heat water for solar hot water systems. The rays of the sun also produce light and radiation that can be captured by solar panels to create electricity.

The most popular use of green solar energy is for saving money. Although green solar energy systems can come with a large initial investment, they generally pay for themselves in a few years by providing either supplemental electricity or all of the electricity to your home or business. Building your own solar panels, participating in government refunds and net metering, in which you sell unused electricity back to the power company, can reduce the cost of implementing a green solar energy system. In addition, green solar energy systems require little to no maintenance after installation, as most have no moving parts.

The most important benefit of utilizing green solar energy is completely environmental. With polar ice caps dwindling away and climate changes creating tragic storms world wide, it is increasingly obvious that steps must be taken to decrease global warming and our dependence on fossil fuels. Green solar energy provides a clean energy alternative as it creates little pollution and does not contribute to global warming.

Solar energy panels have become more affordable in recent years making it a viable alternative energy option for savvy home owners looking for savings on their monthly utility bills and the environmentally conscious who also enjoy the financial advantage, but focus more on the benefits solar energy panels have on global warming and independence from fossil fuels.

If you are a beginner to the solar electric world, then you may be wondering what exactly solar energy panels are? It is really simple and yet fascinatingly complicated. Solar energy panels are also known as photovoltaic panels; photovoltaic meaning electricity from the sun. Solar energy panels work by collecting protons from the sun, which displace neutrons, and create a flow of electrons or electricity. An inverter converts the power generated by the solar energy panels from an AC current to a DC current making it usable in homes as a direct electricity supply.

You can use solar energy panels to heat your pool, workshop tools, greenhouse lights and fans or depending on you personal electric usage, your entire home or business. Most solar energy panels are designed to last 30-40 years and require little to no maintenance. Over the life-span of solar energy panels, the energy savings realized by the owner is enough to justify the initial cost of the system and prices are dropping more and more as a larger number of consumers express interest and make the change to solar energy panels or other renewable resources.

Solar energy panels for small applications can be purchased at your local hardware stores. These small versions are ideal for outdoor lighting, small water pumps and other outdoor tools. If you are purchasing a home size or business size system of solar energy panels it would be best to seek out a local retailer of solar energy panels or a green energy retailer in your area. There is also plenty of information available online about different solar energy panel providers.

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home solar energy
from Julie Landry

Solar energy is frequently used in residential homes to heat water. This is an easy application, as the desired end result (hot water) is the storage facility. Solar energy is also relatively weak because it must first pass through the atmosphere, which protects the Earth from the sun’s intensity. As such, the intermittent and variable manner in which solar energy arrives on the Earth’s surface means it creates reliability problems. Solar energy is produced at the core of the sun by nuclear fusion. This energy is then radiated to the convection zone, where mixing transfers the energy to the photosphere.

Photovoltaic energy is the conversion of sunlight into electricity. A photovoltaic cell, commonly called a solar cell or PV, is the technology used to convert solar energy directly into electrical power. Photovoltaic solar energy is produced when the sun’s energy, in the form of photons, strikes a photovoltaic cell and is transmitted to electrons within the semiconductor material in the PV cell, causing an electrical current. Each photovoltaic cell generates only a small amount of energy, so many cells are grouped together into a module; then several modules are combined to form a solar panel. Photovoltaic energy systems cost an average of $12,000 to $18,000 per kilowatt, according to data from Solar Services Inc. The price goes down per kilowatt installed.

Solar energy is an easy source of renewable energy to harness for home use. There are many residential solar power systems of different sizes which absorb and store different levels of energy. Solar energy is derived ultimately from the sun. It can be divided into direct and indirect categories. Solar energy is also often used to heat water (a solar collector is mounted in direct sunlight, which warms a heat transfer fluid, which in turn heats the water in your hot water tank).

Solar energy is the energy force that sustains life on the earth for all plants, animals, and people. The earth receives this radiant energy from the sun in the form of electromagnetic waves, which the sun continually emits into space. Solar energy is produced by solar cells, which are also known as photovoltaic devices. The cells are flat structures that absorb the solar energy in sunlight to produce electrical energy. Solar energy is the technology used to harness the sun’s energy and make it useable. Today, the technology produces less than one tenth of one percent of global energy demand.

Solar energy is inexhaustible and nonpolluting, but converting solar radiation to electricity is not yet commercially competitive, because of the high cost of producing large-scale solar cell arrays and the inherent inefficiency in converting light to electricity. Solar energy is a highly reliable and proven technology for producing clean energy at your home. A good quality professionally installed solar PV system is likely to outlast the rest of your home. Solar energy is on the rise, and new developments will hopefully keep taking place in order to make this energy form as efficient and cost effective as possible. Take the importance of clean, renewable energy into consideration as you go to the polls this year.

Solar energy is cost effective in terms of fuel (because no fuel is required) and its price would not be affected by the supply and demand of fuels. Solar energy is also pollution free.

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