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Quality matters

Powered for performance. Guaranteed for success.

Backed by more than 35 years of success, SolarWorld products are designed and manufactured to the highest standards of quality, performance and durability. From crystals, wafers and cells to PV panels and complete solar power systems, SolarWorld products have consistently proven to produce more energy per rated kilowatt than other major brands.

Linear warranty: long-term performance SolarWorld's linear warranty gurantees maximum performance from you sola panels.

But don’t take our word for it: Our ratings speak for themselves. SolarWorld Sunmodule panels are independently tested according to strict international standards for safety, durability and performance, including UL 1703 and international IEC 61215. Our factories are certified to ISO 9001 quality standards, and we meet all Buy American Act requirements. Learn more about our standards and certifications.

As you can probably tell, we take pride in our work. In fact, we were the first solar company to offer a 25-year linear performance guarantee*.

Our 10-year limited product warranty guarantees the functional capability of our products for 10 years beyond your purchase, protecting you against mechanical failures, clouding or discoloration of the glass, and more.

SolarWorld Sunmodule solar panel plus sortingPlus sorting: get all the watts you pay for

We further secure your solar investment with “plus sorting,” meaning all panels are guaranteed to perform at or better than their nameplate power performance rating. This ensures that SolarWorld systems operate at top efficiency and deliver maximum energy yield year after year.

Committed to excellence

At the heart of our commitment to manufacturing excellence is our commitment to make the world a better place to live and work. We serve as a good corporate citizen -- in our communities, in our country and in the world as a whole. We strive to conserve resources, support local businesses, treat our employees fairly and give back whenever possible. All of which helped make us The Greenest Solar Company in the World for 2011 , and the top-ranking solar manufacturer in terms of sustainability on the Silicon Valley Toxics Coalition’s Solar Scorecard 2011.

Make your solar investment count. With SolarWorld.

* According to our guarantee, the actual power of a new module cannot deviate from the specified rated power by more than 3% during the first year; and afterward, the power will not decrease by more than 0.7 percent of the rated power per year. So at year 10, the Sunmodule's capacity is guaranteed to be at least 90% of the nameplate as opposed to the industry standard guarantee of 80%.