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OutBack Solar Products
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Solar Taos, LLC
Solar-Catalog.com

This site is devoted to state of the art products made by OutBack Power Systems as well as other products which will help you complete your OutBack Solar Experience.  These products include batteries, stand-by generators and wind turbines.

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Solar Electric Panels!
"At SolarTaos.com we have been living and running our woodshop with clean,
reliable electric made by the sun and Wind
for over Two decades and we love it and we know you will too!"

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Panel Listing
by Brand

Solar panels are what produces electric from the sun.  They come in various sizes ranging from as little as 5 watts up to as much as 187 watts.  Most panels are normally 12 volts DC with panels above 140 watts usually being 24 volts DC.

We are dealers for a number of different manufactures and like most dealers, we have our panels delivered directly from our distributors or from the manufacturers.

Since about the beginning of 2004 most of the worlds production of solar panels has been bought up by the European market making availability in the United States and the rest of the world very low.  As a result, in some cases there are panels in stock and in others they are back-ordered.  We can not guarantee when your panels will be shipped but your panels will be shipped in the order they are received.

When we see that an order has been placed for a certain size panel, we will let you know the shipping status of that panel and also that of similar size panels that may be available sooner.

We are sorry about this situation, many of the manufactures we have talked with are in the process of either gearing up their production levels or allocating more panels to the American market (which only represents about 10 percent worldwide).  We are hoping that this crunch will ease up soon.

We recommend that you move forward with your solar plans and place your solar panel order as soon as you can (with either us or whoever) because to some degree or other, this problem may be around for awhile.  We recommend that while you are waiting for your panels that you could use wind, hydroelectric (if you have a water source), or a propane backup generator to keep your batteries charged.

Once your order has been placed we will make every effort to get you your panels as quickly as possible.  However due to the overwhelming demand on the panel industry we can not tell you how long it will take, until an order has come across our desk


Click here for more information about pricing and purchasing.


Solar Module Power Characteristics

The current and power output of photovoltaic modules are approximately proportional to sunlight intensity. At a given intensity, a module’s output current and operating voltage are determined by the characteristics of the load. If that load is a battery, the battery’s internal resistance will dictate the module’s operating voltage.

A module which is rated at 17 volts will put out less than its rated power when used in a battery system.This is because the working voltage will be between 12 and 15 volts. As wattage (power) is the product of volts times amps, the module output will be reduced. For example: a 50 watt module working at 13.0 volts will produce 39.0 watts (13.0 volts x 3.0 amps = 39.0 watts).This is important to remember when sizing a PV system.

An I-V curve as illustrated to the right is simply all of a module’s possible operating points, (voltage/current combinations) at a given cell temperature and light intensity. Increases in cell temperature increase current slightly, but drastically decrease voltage.

 


Maximum power is derived at the knee of the curve. Check the amperage generated by the solar array at your battery’s present operating voltage to better calculate the actual power developed at your voltages and temperatures.

Shading

PV modules are very sensitive to shading. Unlike a solar thermal panel which can tolerate some shading, many brands of PV modules cannot even be shaded by the branch of a leafless tree.

Shading obstructions can be defined as soft or hard sources. If a tree branch, roof vent, chimney or other item is shading from a distance, the shadow is diffuse or dispersed. These soft sources significantly reduce the amount of light reaching the cell(s) of a module. Hard sources are defined as those that stop light from reaching the cell(s), such as a blanket, tree branch, bird dropping, or the like, sitting directly on top of the glass. If even one full cell is hard shaded the voltage of that module will drop to half of its unshaded value in order to protect itself. If enough cells are hard shaded, the module will not convert any energy and will, in fact, become a tiny drain of energy on the entire system.

Partial-shading even one cell of a 36-cell module, such as the KC120, will reduce its power output. Because all cells are connected in a series string, the weakest cell will bring the others down to its reduced power level. Therefore, whether ½ of one cell is shaded, or ½ a row of cells is shaded as shown above, the power decrease will be the same and proportional to the percentage of area shaded, in this case 50%.

 

When a full cell is shaded, it can act as a consumer of energy produced by the remainder of the cells, and trigger the module to protect itself. The module will route the power around that series string. If even one full cell in a series string is shaded, as seen on the right, it will likely cause the module to reduce its power level to ½ of its full available value. If a row of cells at the bottom of a module is fully shaded, as seen in Figure 7, the power output may drop to zero. The best way to avoid a drop in output power is to avoid shading whenever possible.

 

Tilt Angle

To capture the maximum amount of solar radiation over a year, the solar array should be tilted at an angle approximately equal to a site's latitude, and facing within 15º of due south. To optimize winter performance, the solar array can be tilted 15º more than the latitude angle, and to optimize summer performance, 15º less than the latitude angle. At any given instant, the array will output maximum available power when pointed directly at the sun.

To compare the energy output of your array to the optimum value, you will need to know the site's latitude, and the actual tilt angle of your array-which may be the slope of your roof if your array is flush-mounted. If your solar array tilt is within 15º of the latitude angle, you can expect a reduction of 5% or less in your system's annual energy production. If your solar array tilt is greater than 15º off the latitude angle, the reduction in your system's annual energy production may fall by as much as 15% from its peak available value. During winter months at higher latitudes, the reduction will be greater.

Azimuth Angle and
Magnetic Declination

If a south-facing roof is unavailable, or the total solar array is larger than the area of a south-facing roof section, an east or west-facing surface is the next best option. Be aware that solar power output decreases proportionally with a horizontal angle, or "azimuth," greater than 15º from due south. The decrease in annual power output from a latitude-tilted east or west-facing array may be as much as 15% or more in the lower latitudes or as much as 25% or more in the higher latitudes of the United States. Avoid directing your tilted solar panels northwest, north or northeast, as you'll get little power output.

Magnetic declination, the angle difference between magnetic south and true solar south, must also be taken into account when determining proper solar array orientation. If a magnetic compass alone is used to determine where to point the array, you may not capture the maximum amount of solar radiation. For a general view of the magnetic declination field lines in North America, see the map on the right.

If you wish to gain in-depth information about magnetic
declination, visit the following website:
http://www.ngdc.noaa.gov/seg/potfld/faqgeom.html.

 

 


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 If you experience any problems on this site, please help us out by e-mailing us as to what kind of problem you may have experienced.  Please let us know on what pages the problem occurred.

OUR POLICY ABOUT YOUR ORDER
Prices have been unsteady, since the Iraq War and in most cases we have been able to absorb the difference. 
Should there be a  price increase, you will be notified before we ship so you can make a decision as to keep the purchase or not. 
Once we receive your additional payment, we will fulfill your order. 
Should you decide that you do not want to keep the purchase, you will need to let us know via eMail.

When making a  purchase from this site, shipping  charges are normally included when placing your order.. 
On some large items such as appliances, batteries, etc. the shipping and possibly crating fees may be extra.  These items are noted by an * at the end of the Part Number. 
In such case, you will be notified of the extra charges, which need to be paid prior to shipping. 

ALL WARRANTIES ARE PROVIDED BY THE PRODUCT MANUFACTURERS, WE DO NOT ISSUE THE WARRANTIES.

 If you are interested in quality supplements, please click on the above logo.
If you are interested in becoming a part of our USANA sales team, please click here.

This Web Site is Maintained by Taos Artist, Terry Wolff - Artes del Lobo
Last up-dated on 17 February 2010

     
 

WE ACCEPT...

   

Sign up for PayPal and start accepting credit card payments instantly.
Please take note, should you choose to pay using an American Express Credit Card, you will have to do so by selecting PayPal as your means of payment. 
At this time we feel that it is no longer feasible to accept payments by American Express when there are other more helpful and friendlier methods available, thank you for your understanding and we are sorry if this may seem like an inconvenience for you.


 If you experience any problems on this site, please help us out by e-mailing us as to what kind of problem you may have experienced.  Please let us know on what pages the problem occurred.

OUR POLICY ABOUT YOUR ORDER
Prices have been unsteady, since the Iraq War and in most cases we have been able to absorb the difference. 
Should there be a  price increase, you will be notified before we ship so you can make a decision as to keep the purchase or not. 
Once we receive your additional payment, we will fulfill your order. 
Should you decide that you do not want to keep the purchase, you will need to let us know via eMail.

When making a  purchase from this site, shipping  charges are normally included when placing your order.. 
On some large items such as appliances, batteries, etc. the shipping and possibly crating fees may be extra.  These items are noted by an * at the end of the Part Number. 
In such case, you will be notified of the extra charges, which need to be paid prior to shipping. 

ALL WARRANTIES ARE PROVIDED BY THE PRODUCT MANUFACTURERS, WE DO NOT ISSUE THE WARRANTIES.

 If you are interested in quality supplements, please click on the above logo.
If you are interested in becoming a part of our USANA sales team, please click here.

This Web Site is Maintained by Taos Artist, Terry Wolff - Artes del Lobo
Last up-dated on 17 February 2010