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Southwestern Solar Systems has set itself apart from almost all of the competition by using exclusively the technology developed by SMA Inverters and the use of the Siliken Solar Panel Line of products manufactured in the USA


Turning Light into Clean, Affordable Electricity

Solar panels silently convert light into electricity. They have no moving parts, require little maintenance and are designed to last for many years. Solar panels use the “photovoltaic effect”, discovered by Edmund Becquerel in 1839, to produce electricity directly from sunlight. Solar panels work best in direct sunshine, but they also work well even on cloudy days.

Solar panels can supply a substantial proportion of the electricity needs of a typical household. They are often mounted on the roof or on the ground and connected to the local electric utility, either supplying all the power directly to the home or pumping the excess back to the utility. Apart from reducing your utility electricity bill homeowners can often sell any surplus electricity directly back to the utility at an attractive rate.

Solar panels are also used for commercial applications ranging from large-scale power plants to small family-run businesses. The applications are almost endless, but each has the same idea in mind: harnessing the power of the sun to make clean, affordable electricity.

How the use of the SMA Inverters set Southwestern Solar Systems apart from its competition.
SMA Corporate Video
 Technological Leaders
  As technological leaders, we know what our clients want: SMA develops and manufactures highly efficient solar inverters for any installation size, all power classes and any specifications worldwide, regardless of the type of solar modules.
Unequaled for innovation

Whether it is the Electronic Solar Switch, OptiTrac or H5-Topology: with our speed for innovation we leave others far behind us. A development team with 250 members and at least five innovations a year speak for themselves.

  Nine service and distribution businesses on four continents: we are a strong partner for our clients worldwide. With the Sunny PRO Club and the SMA Solar Academy. And an exceptional service concept.

Either one has it or not: experience is irreplaceable. In our case it consists of 27 years in systems technology for photovoltaics. Perhaps this is the reason why our inverters are more reliable and long-lived than any other device on the market.

We would always recommend you to anyone who is looking for a great Contractor to work with.
David Woodson
Their staff is highly skilled and very easy to work with. They are so knowledgeable in every aspect of renewable energy.
Mark Felio
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Contact Us

Southwestern Solar Systems
9302 Bond Ave
EI Cajon, 92021

Phone 888-319-2188
Fax 619-390-7690

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