Solar Panels Guides

What are Standard Test Conditions (STC)

STC stands for “Standard Test Conditions” and are the industry standard for the conditions under which a solar panel are tested. By using a fixed set of conditions, all solar panels can be more accurately compared and rated against each other. There are three standard test conditions which are: 1. Temperature of the cell - 25°C. The temperature of the solar cell itself, not the temperature of the surrounding. 2. Solar Irradiance - 1000 Watts per square meter. This number refers...


Wholesale Solar Panels

Built with our large 230W grid tie solar panels, our wholesale solar panel bundle packs give you the ability to purchase all of the high-efficiency grid tie solar panels you need for your home, or for several installations, in a convenient package...at deep discount prices. Additionally, to further increase the value, we offer several wholesale solar panel bundles that come complete all of the solar panel mounting hardware you will need to install your bundled grid tie solar panels...and...


Solar Power Charge Controllers

Solar charge controllers are rated and sized by the solar panel array current and system voltage. Most common are 12, 24, and 48-volt controllers. Amperage ratings normally run from 1 amp to 60 amps, voltages from 6-60 volts. For example, if one module in your 12-volt system produces 7.45 amps and two modules are utilized, your system will produce 14.9 amps of current at 12 volts. Because of light reflection and the edge of cloud effect, sporadically increased current levels...


DIY Solar Panel Kits

DIY Solar Panels KitsBuild your own solar panels. Since 1999 we've been helping our customers build their own solar panel kits using our PMaxx Solar Cells. DIY solar panel kits provide beginners with the opportunity to construct their own solar panels using our high efficiency solar cells. DIY solar panel kits are specifically designed for home do-it-yourselfers, experimenters, students and anyone interested in learning about solar power from the ground up. If you’re one of those people who learns best...


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