Solar Applications

June 21, 2011 By: Admin Category: Solar Power

Solar Energy Applications

Solar energy technologies use energy from the sun to produce heat, light, hot water, electricity, and even cooling, for homes, commercial and industrial.

There are a variety of technological applications that have been developed to take advantage of solar energy. Technology can be read further below.

Photovoltaics System

Solar cells work by converting sunlight directly into electricity. The electrons in the semiconductor material, the material used to capture sunlight, will move when the sun’s energy in the form of photons hit it. Solar energy is forcing the electrons to move, occur continuously, and consequently there is also a continuous electricity production. Process, which turns sunlight (photons) into electricity (voltage), called the photovoltaic effect.

Solar Cell Module

Solar cells are usually organized into modules that each module can consist of 40 solar cells. Some modules can be arranged to form a PV line fitted with a fixed angle facing south. Or even could be placed in a sun-tracking device, to get more solar energy throughout the day. Several rows of PV could produce enough power for a house. As for industrial applications or power companies, hundreds of lines of PV can be linked to form one large PV systems and sufficient to meet the electricity needs.

Thin Film Solar Cell

Thin film solar cells use several layers of semiconductor material with a thickness in the micrometer scale. Technology allows to create solar cells integrated into rooftops to the skylights. Even solar cells are designed for applications having the same power with actual roof.

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Photovoltaics

November 30, 2009 By: Admin Category: Solar Cells

The history of “Photovoltaic”

The history of “Photovoltaic” (PV) industrial development has been running about 50 years, and have been many studies done in the hope that one day could produce cheap solar cells and feasible compared with artificial electricity (hydro or nuclear) to solve the problem of availability of environment friendly electricity at all levels of this world.

In the late 19th century, solar electricity discovered by German physicist named Alexandre Edmond Becquerel accident where the sun rays fall on the solution of electro-chemical research materials, so the charge of electrons in the solution increases, there is no scientific explanation of the event. Not until the early 20th century, Albert Einstein called the discovery of this natural electrical event with “Photoelectric Effect”, which is the basic understanding of the “Photovoltaic Effect” (Albert Einstein got the Nobel Prize in Physics).

“Photoelectric Effect” comes from Einstein’s observations on a plate of metal release “photon” particles of light energy when exposed to sunlight. Photon continuously urged metal atoms and form a particle “Photon Energy”-is the wave of light energy.

Ultraviolet light waves, light that are high charged photon energy and short wavelength, while red light (infra-red) is low charged photon energy and long waves.

Then around the year 1930, research continued and related to discovery of the “Quantum Mechanics” concept, to create new technologies “solid-state”, which then the Bell Telephone Research Laboratories company create the first solid Solar Cell.

Year 1950 – 1960, technology of solar cell design and efficiency continued and applied to the spacecraft (photovoltaic energies). In 1970′s, the world encourage “renewable” alternative energy sources and environmentally friendly, then the PV is applied to the “low power warning systems” and “offshore buoys” (but the PV production could not be much because it is still “handmade”).

Just in 1980, the PV companies joined with government energy agencies in order to produce the PV cells in large numbers, so the price of solar cells can be more suppressed as low as possible.

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Solar Roof

May 29, 2009 By: Admin Category: Solar Architecture

Why Install a Solar Roof Panel

Executive Summary about Solar Roof By Dan A Swanson

The advancements in solar technology has helped in creating more efficient and light weight solar cells that make solar roof panels a more practical choice for the ordinary households. Solar cells of the solar roof panels are able to convert sunlight into solar energy which can be used for providing electrical energy to your home.

These solar shingles or solar roof panels are meant to replace the regular shingles of your home, thus providing a waterproof coverage to your home and also generating electrical power as an added advantage. As far as their installation is concerned, a solar roof panel is easiest to install.

Advanced solar technology is able to produce solar cells that can produce 20% efficiency, as compared to 7-10% produced by older cells.

The different kinds of solar roof panels are the traditional types, advanced types and compact types while the best ones are light weight panels which are less expensive, smaller in size and still capture sufficient amount of energy every day.

Benefits of a Solar Roof Panel
Executive Summary about Solar Roof By Eben Jaimes

With the high cost of living, more and more people are turning to renewable energy generation for their homes. One of the main sources of renewable energy, that seems to be the most popular, is having a solar roof panel installed on your home.

Having a solar roof panel is an extremely efficient supplier of energy. This means that the utility companies have to pay you. You will be happy to know that by generating electricity from a solar roof panel, you will help reduce greenhouse gas emission. A simple 3kW solar system reduces carbon dioxide emissions very close to the amount of carbon dioxide emissions given off by a passenger car traveling 8,000 miles per year.

Also, with a solar roof panel, you can think long term. Almost all of the satellites that orbit the earth are powered by solar energy. As a special benefit, a solar roof panel system is eligible for a $2,000 federal tax credit. If you happen to live in California, the California Solar Initiative (CSI), offers an up-front rebate.

Check out my other guide on Solar Battery

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