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Onyx develops 330-watt 'plug-n-play' solar panel with built-in AC outlet (Engadget)
Onyx's new 330-watt solar panel isn't the first to offer a "plug-n-play"
solution for getting power to your gadgets, but it may be the first to include
a standard US power outlet, and enough output to juice up a computer, light or
any other appliance (within reason) through its built-in micro inverter. "You
can literally point the panel at the sun and plug an extension cord directly
into the panel for immediate power," according to the Onyx PR, which you'll
find in full just past the break.
Continue reading _Onyx develops 330-watt 'plug-n-play' solar panel with built-
in AC outlet_
Onyx develops 330-watt 'plug-n-play' solar panel with built-in AC outlet
originally appeared on Engadget on Thu, 05 Jan 2012 09:25:00 EDT. Please see
our terms for use of feeds.
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How Home Solar Power Systems Work by Adrian Fletcher
There are a few ways to use the Sun's energy to create home solar power systems. They can be categorized as passive and direct systems. Passive systems have been use for thousands of years and the inspiration behind such systems was probably the fact that our ancestors felt hot in the Sun. From this point they realized that the heat from the Sun can make water hot, cook food, dry clay bricks and countless other applications. Today there are systems that can passively heat the home living areas and the water used in the home. This article will not cover these topics but focus on the direct use of the Sun to create electricity for use in the home.
Electricity is created by utilizing sun light energy. The technology that does this is known as the photovoltaic (PV) cell. A cell is made from a silicon compound that throws an electron loose of the atom whenever sunlight of a certain frequency strikes the cell. When many cells are linked together in series, this forms an electric current.
Many PV cells connected together in series is referred to as a solar module. When many solar cells are connected together than are known as a solar panel.
You have probably seen solar panels dotted on roofs in your suburb. This is generally the most practical place to install them but they can go anywhere that their is plenty of sunlight.
The solar panel creates direct current electricity (DC). By passing it through a power inverter it can be transformed to alternating current (AC). AC is used in most homes to power everyday appliances.
AC is distributed to the numerous power points in the home via an electrical service panel or breaker box. If you are connected to the grid a utility meter will record your electricity usage.
For instance, if it is during the day when the sunlight is at it's strongest, most electricity will be produced. If this coincides with you being at work the chances are you won't be using any of this solar generated power. Thus the meter may go backwards. This is effectively giving you credit for the electricity that you are creating with your home solar power system.
Your home solar power system can be connected to the grid as described above or it can be off grid. On the grid or grid tied (also known as a net metering system) is a way to make money with your solar panels. Many utility companies have their own set of rules governing this arrangement so you need to check with the company you are using beforehand. Many states have laws that dictate how the net metering system should work and what guidelines the companies should follow.
An off grid system means that you are not connected to the utility company. All your electricity needs must be found by your home solar power system. This is more responsibility and work for you as you need a contingency or alternate power system if the solar system fails or cannot cope.
Many people will have a fuel powered generator for this purpose. People more interested in renewable power sources might go for a wind power generator or some other renewable system. Another aspect of an off the grid system is that DC needs to be stored in a battery bank for use at night or when the Sun is not shining. This is another responsibility and space has to be found on the property to securely house the batteries.
Most people go for an on grid system with net metering as this is less responsibility and can stack up economically. With more experience they may go more off grid. Of course this is more responsibility and work but the potential to save money is greater.
Learn more about how do solar panels work and how a solar power inverter fits into a home solar power system at solarpowerappliances.com.
Article Source: http://www.earticlesonline.com/Article/How-Home-Solar-Power-Systems-Work/346707
