Archive for June, 2011
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.
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.
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.