Welcome to the Solar Panel Store!

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We focus on solar power products that function in the harshest environments, designed for years of reliable service. We handle all the components needed for creating and harnessing electricity from the sun on a residential or industrial scale. We can help you choose components that are designed to work together for custom applications.

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Solar Panels In Stock:
SolarWorld SW240 Mono Black on Black
SolarWorld SW270 Mono Black
SolarWorld SW275 Mono
SolarWorld SW280 Mono
Q Cells Q.PRO BFR-G3-255 255W Solar Panels
SolarLand 10W 12V
SolarLand 20W 12V
SolarLand 20W 24V
SolarLand 55W 12V
Carmanah CTI95 95W 12V
Carmanah CTI-160 160W 12V
Solartech 85W 12V Custom Shell SQ85 Replacement
Kyocera KD140SX-UFBS
DURAlite 20 Solar Panel
... and others ...
Fun Renewable Energy Terms:

- Solar Cells: The electical building blocks for solar panels or modules. The blue or black squares are silicon cells producing about .5 Volts each. Smaller panels are usually 12V nominal, with 36 cells in series to produce around 17V at Standard Test Conditions, under load. The larger panels we sell are often 24V nominal, with 72 cells in series, and produce around 35V at Standard Test Conditions, under load. Some panels are made with different numbers of cells and therefore have rated voltages which do not correspond to standard battery voltages. These panels are primarily designed for high voltage grid-connected systems, although they can be used for battery based systems as well. The larger 200W panels are often 50 or 60 cells in series. The voltage is therefore a little lower than the 24V panels but because the cells are larger the current is higher.

- Solar Array: A group of solar panels. A solar array produces about 10-12 Watts per square foot.

- Junction Box or "j-box": Some solar panels come with them, some have preattached leads instead. J-boxes are handy for smaller systems where panels are often in parallel. Preattached leads (also called MC Cables) are best for quickly hooking many panels in series for high-voltage grid-tie systems, or larger off-grid systems.

- Combiner Box: An electrical junction box where small output wires from solar panels are combined into pairs of feeder wires leading to the batteries or power inverter. May include circuit breakers or fuses.

- Charge Controller: Electronic device which regulates the voltage from the solar cells to the correct voltage for a system's batteries. Also lowers the voltage and current as the batteries become full. Systems without batteries do not require a charge controller.

- Amp-Hour Meter: Measures cumulative energy going into or out of the batteries, to provide an estimate of state-of-charge.

- Flooded Batteries: Traditional Lead-Acid "Wet Cells". Capacity is measured in amp-hours. Requires periodic addition of distilled water to replace what is lost during heavy charging. Perform better if protected from extreme cold.

- Sealed Batteries: Also use Lead-Acid chemistry but do not lose water so do not need maintenance. May be Absorbed Glass Mat or Gel Cell. More expensive and require more careful charging than wet cells.

- Battery Box: May be required by code for wet cells for safety and to contain hydrogen gas which is then vented to the outdoors. Gassing and watering are minimal with a high quality charge controller.

- Overcurrent Protection: Fuses or circuit breakers. Should be on all circuits connected to batteries especially.

- Net Metering: Policy of an electric utility to allow electricity generated on site to "spin the meter backwards", and bill the customer only for the net amount of electricity purchased.

- Rebate: In order to encourage the use of solar power, many utilities and local non-profit agencies offer rebates after the installation of a solar electric system. Usually the rebates are simply based on the number of Watts of solar panels installed.

- Tax Credit: There is a Federal Income Tax Credit available for both homes and businesses which install solar power systems. 30% of the cost of the installation, after rebates, may be taken as a credit on Federal Income Tax. *Please consult your tax advisor.