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Solar Panels

Since 1999, altE has offered customers across the globe solar panels for their homes, cabins, RV's and boats. We carry leading brands such as SolarWorld, Seraphim USA, Canadian Solar, and our own altE solar panels. See our full list of solar panels for sale below.

Not sure where to start? Check out our Solar Blog, off-grid sizing and grid-tie sizing calculators - great resources for beginners to the most experienced.

Want a custom designed solar power system for your home? Give us a call at 877-878-4060 and our trained solar professionals will work with you to design your own home solar system for FREE!



How Do
Solar Panels Work?

Monocrystalline vs. Polycrystalline
Panels

What can I power with
100W solar panel?


Read more +

SOLAR PANELS FOR SALE

Product Name  Volts Watts $ / Watt Price
  Trina Solar 280 Watt Black Monocrystalline Solar Panel Black Frame     Trina Solar 280 Watt Black Monocrystalline Black Frame   Trina Solar TSM-DD05A.05-280 TRI280BKMONO280 Trina Solar 280 Watt Black Monocrystalline Solar Panel Black Frame  20 V  280 W  0.55  $155.00
  SolarWorld 350 Watt Solar Panel, Sunmodule SW350 XL Mono     SolarWorld 350 Watt , Sunmodule SW350 XL Mono   SolarWorld SW350 XL Mono SOW350SW350MWOB SolarWorld 350 Watt Solar Panel, Sunmodule SW350 XL Mono  24 V  350 W  0.63  $220.00
  SolarWorld 300 Watt Solar Panel, Sunmodule SW300 Mono     SolarWorld 300 Watt , Sunmodule SW300 Mono   SolarWorld SW300 Mono SOW300SW300MWOB SolarWorld 300 Watt Solar Panel, Sunmodule SW300 Mono  20 V  300 W  0.62  $186.00
  SolarWorld 295 Watt Solar Panel, Sunmodule SW295 Black Mono     SolarWorld 295 Watt , Sunmodule SW295 Black Mono   SolarWorld SW295 Black Mono SOW295SW295BLM SolarWorld 295 Watt Solar Panel, Sunmodule SW295 Black Mono  20 V  295 W  0.62  $184.00
  Seraphim Solar 300 Watt Solar Panel, Mono, All Black     Seraphim Solar 300 Watt , Mono, All Black   Seraphim SolarUSA SRP-300-6MB-BB SEP300SRP300MBK Seraphim Solar 300 Watt Solar Panel, Mono, All Black  20 V  300 W  0.69  $208.00
  Panasonic 330 Watt HIT High Efficiency Solar Panel, 40MM     Panasonic 330 Watt HIT High Efficiency , 40MM   Panasonic Panasonic 330 Watt - 40MM PAN330HITMONO40 Panasonic 330 Watt HIT High Efficiency Solar Panel, 40MM  32 V  330 W  0.95  $315.00
  Panasonic 325 Watt HIT High Efficiency Solar Panel, 40MM     Panasonic 325 Watt HIT High Efficiency , 40MM   Panasonic Panasonic 325 Watt - 40MM PAN325HITMONO40 Panasonic 325 Watt HIT High Efficiency Solar Panel, 40MM  32 V  325 W  0.92  $299.00
  Hanwha Q Cell 385 Watt Mono Duo Cell Solar Panel     Hanwha Q Cell 385 Watt Mono Duo Cell   Hanwha Solar Q.PEAK DUO L-G5.3-385 HAN385QPEAKD385 Hanwha Q Cell 385 Watt Mono Duo Cell Solar Panel  24 V  385 W  0.59  $228.65
  Hanwha Q Cell 345 Watt Poly Solar Panel     Hanwha Q Cell 345 Watt Poly   Hanwha Solar Q.PLUS L G4.2 345 HAN345QPLUS345P Hanwha Q Cell 345 Watt Poly Solar Panel  24 V  345 W  0.57  $198.00
  Hanwha Q Cell 325 Watt Mono Duo Cell Solar Panel     Hanwha Q Cell 325 Watt Mono Duo Cell   Hanwha Solar Q.PEAK DUO G5-325 HAN325QPEAKD325 Hanwha Q Cell 325 Watt Mono Duo Cell Solar Panel  20 V  325 W  0.63  $206.00
  Hanwha Q Cell 320 Watt Mono Duo Cell Solar Panel     Hanwha Q Cell 320 Watt Mono Duo Cell   Hanwha Solar Q.PEAK DUO G5-320 HAN320QPEAKD320 Hanwha Q Cell 320 Watt Mono Duo Cell Solar Panel  20 V  320 W  0.65  $206.00
  Hanwha Q Cell 310 Watt Mono Duo Cell Solar Panel, All Black     Hanwha Q Cell 310 Watt Mono Duo Cell , All Black   Hanwha Solar Q.PEAK DUO BLK G5-310 HAN310QPKD310MB Hanwha Q Cell 310 Watt Mono Duo Cell Solar Panel, All Black  20 V  310 W  0.59  $184.00
  Hanwha Q Cell 305 Watt Mono Solar Panel     Hanwha Q Cell 305 Watt Mono   Hanwha Solar Q.PEAK G4.1 /305 HAN305QPEAK305M Hanwha Q Cell 305 Watt Mono Solar Panel 5.0 1  20 V  305 W  0.59  $181.00
  Canadian Solar 355 Watt Solar Panel, Split Cell, Poly     Canadian Solar 355 Watt , Split Cell, Poly   Canadian Solar, Inc. CS3U-355P-40MM CSI355-CS3U355P Canadian Solar 355 Watt Solar Panel, Split Cell, Poly  20 V  355 W  0.50  $179.00
  Canadian Solar 305 Watt Solar Panel, Mono     Canadian Solar 305 Watt , Mono   Canadian Solar, Inc. CS6K-305MS CSI305-CS6K305M Canadian Solar 305 Watt Solar Panel, Mono  20 V  305 W  0.59  $179.00
  Ameresco Solar 90J 90W 12V Solar Panel with J-Box     Ameresco Solar 90J 90W 12V with J-Box   Ameresco Solar 90J AMR90-90J Ameresco Solar 90J 90W 12V Solar Panel with J-Box  12 V  90 W  4.43  $399.00
  Ameresco Solar 50J 50W 12V Solar Panel with J-Box     Ameresco Solar 50J 50W 12V with J-Box   Ameresco Solar 50J AMR50-50J Ameresco Solar 50J 50W 12V Solar Panel with J-Box  12 V  50 W  5.90  $295.00
  Ameresco Solar 40J 40W 12V Solar Panel with J-Box     Ameresco Solar 40J 40W 12V with J-Box   Ameresco Solar 40J AMR40-40J Ameresco Solar 40J 40W 12V Solar Panel with J-Box  12 V  40 W  6.89  $275.74
  Ameresco Solar 30J 30W 12V Solar Panel with J-Box     Ameresco Solar 30J 30W 12V with J-Box   Ameresco Solar 30J AMR30-30J Ameresco Solar 30J 30W 12V Solar Panel with J-Box  12 V  30 W  8.97  $269.00
  Ameresco Solar 20J 20W 12V Solar Panel with J-Box     Ameresco Solar 20J 20W 12V with J-Box   Ameresco Solar 20J AMR20-20J Ameresco Solar 20J 20W 12V Solar Panel with J-Box  12 V  20 W  9.75  $195.00
  altE Poly 100 Watt 24V Solar Panel
    altE Poly 100 Watt 24V   AltE ALT100-24P ALTS-100W-24P altE Poly 100 Watt 24V Solar Panel  24 V  100 W  1.45  $145.00
  altE 60 Watt 12V Poly Solar Panel     altE 60 Watt 12V Poly   AltE ALT60-12P ALTS-60W-12P altE 60 Watt 12V Poly Solar Panel  12 V  60 W  1.48  $89.00
  altE 30 Watt 12V Poly Solar Panel     altE 30 Watt 12V Poly   AltE ALT30-12P ALTS-30W-12P altE 30 Watt 12V Poly Solar Panel  12 V  30 W  2.30  $69.00
  altE 200 Watt 24V Poly Solar Panel     altE 200 Watt 24V Poly   AltE ALT200-24P ALTS-200W-24P altE 200 Watt 24V Poly Solar Panel  24 V  200 W  0.94  $189.00
  altE 165 Watt 12V Mono Black Solar Panel     altE 165 Watt 12V Mono Black   AltE ALT165-12M ALTS-165W-12M altE 165 Watt 12V Mono Black Solar Panel  12 V  165 W  1.15  $189.00
  altE 150 Watt 12V Poly Solar Panel     altE 150 Watt 12V Poly   AltE ALT150-12P ALTS-150W-12P altE 150 Watt 12V Poly Solar Panel  12 V  150 W  1.13  $169.00
  altE 100 Watt 12V Poly Solar Panel     altE 100 Watt 12V Poly   AltE ALT100-12P ALTS-100W-12P altE 100 Watt 12V Poly Solar Panel  12 V  100 W  1.49  $149.00
  altE 10 Watt 12V Poly Solar Panel     altE 10 Watt 12V Poly   AltE ALT10-12P ALTS-10W-12P altE 10 Watt 12V Poly Solar Panel  12 V  10 W  1.80  $18.00
More Info on Solar Panels

What are solar panels?

The term solar panels is often used for a few different types of products that produce energy by collecting sunlight. We most commonly use the phrase to refer to the type that converts sunlight directly into DC electricity. Less frequently, people will use the term in reference to solar thermal collectors, which typically heats a liquid such as water, or solar air heaters, which heats air directly.

How does a solar panel work?


Quick Version

Rays of sunlight hit solar cells, pushing the electrons in the cell through the wires to create electricity. This electricity is in one direction, so it is called DC, for Direct Current. As opposed to AC, for Alternating Current, where the electrons are going back and forth 50-60 times (50-60Hz) per second. That is why for most installations, you need an inverter. An inverter changes the DC to AC and makes it usable with your home's appliances.

Detailed Version

On one side of the solar cell, there's an overabundance of electrons and on the other side there is a lack of electrons. Manufacturers create this static imbalance of charges on the cell by doping each side of the silicon solar cell with different chemicals (e.g. phosphorous on one side and boron on the other). Wires or soldered leads are effectively connected to each side of the cell. The positive and negative wires go to whatever you want to charge or power.

Connecting the leads in itself to an electrical load, while closing the current path, does not allow to the electrons to flow, despite the positive and negative imbalance. It takes sunlight hitting the silicon in the solar cells to loosen up electrons. And as soon as they a freed up, they immediately start flowing through the wires to power your electrical loads. The more sunlight shines on the cells, the more electrons loosen up, the more electrical current flows and the more power it produces.

How Solar Panels Work

Want more? We have created a handy, more in-depth overview of how solar panels work. Here, we go into more detail of, not only how the photovoltaic effect works, but also how solar cells work together to create different voltage options, and what all the various ratings in the specification brochures mean.

Are solar power systems practical for home owners?

We're guessing you wouldn't have come here if you didn't have a hunch they probably were. But just in case, let's review when solar systems are practical for homes and when they're not. If you own home or cabin and you have (or a tiny home who can be parked such that...) a roof that roughly points south (north if south of the equator) with no shading by trees, hills, other homes from around 9AM to 3PM, then you have some prime real estate for putting a solar system on.

The cost has dropped significantly in the last several years, making it such that, with tax incentives or rebates, a grid-tie solar system will pay for itself in just a few years. Essentially, for the price of a few years electricity, you get 25 to 35 years of electricity. In fact, solar systems will likely keep on producing electricity at a lower rate for even decades after that.

Solar power systems are not practical for locations that get lots of shade throughout the day. That said, with the advent of micro inverters and grid-tie inverters that have DC optimizers connected to each individual solar panel, some locations with a little bit of shading can still be an option.

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