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Properly sizing the wire for your solar panels will play large role in the efficiency of your overall system. This article will help you select the right wire gauge for your solar project.

Slashdot clued me into how residents of censored states are fighting back with the FabFi project. I’ve been thinking about how to build a solar powered wireless router for a while now, and this news article inspired me to figure out how one might solar power their own FabFi Node.

The amount of energy in the form of heat in the earth is huge. We can use this energy to generate electricity or directly as heat. This energy resource consists mainly of radioactive decay and sun energy. Earth is insulating, absorbing energy from the sun and does a relatively good job at keeping it in place. Temperatures are therefore more stable in the earth as opposed to the surface.

There are two important equations that are used in every electrical project. A person can usually debug an electrical circuit using only these two equations, so long as they are good with logic or algebra. However, before we can discuss them, we need to cover two more definitions.

In previous posts, such as my solar powered pond pump pages, I’ve tried to pass on hands-on knowledge of how to build solar circuits. However, I rely on a common foundation of electrical concepts such as voltage, current, resistance, etc. I assume that my readers are familiar with these concepts, but this is not always a valid assumption. This post covers some basic electrical concepts that need to be understood by anyone wanting to work with electrical solar circuits. Each definition below includes links you can follow to get more information on that topic.

Have you ever found yourself on a trip with your cell phone or MP3 player about to die and realized that you forgot the charger? Frustrating, isn’t it!? The good news is that there are several options for solving this problem.

This article reviews the use a solar trickle charger for car battery charging. A small solar panel mounted on a car or truck can help compensate for small quiescent loads on the battery that may lead to a no-start, dead battery condition if the vehicle is allowed to sit for long durations.

If you’re like many homeowners, you might be considering adding solar lighting to your home’s exterior now that winter is gone and summer is finally here. Since solar power has become more efficient in the last ten of fifteen years there are many solar lighting products for you to choose from. You’ll be able anything from outdoor string lighting designs to solar flood lights for uplighting your trees at night.

Having a battery for backup power storage is extremely useful as it can be used for other purposes and experiments when the power is not being generated. One of the batteries that will serve many purposes is the BP7-12 12V 7Ah battery.

Consider all cons and pros of both options and pay attention to local laws and restrictions as to solar powered systems. Be sure a company selling solar powered systems can also provide all necessary certificates or otherwise you will have to do it on your own.