SolarWorld carries out each step of the module manufacturing process in Hillsboro, Oregon. They adhere to the strict quality management, environmental and occupational health and safety standards ISO 9001, ISO 14001, and OHSAS 18001. By using statistical process controls in every step in the manufacturing process, SolarWorld is able to maintain the highest level of quality. As the largest solar panel manufacturer in the U.S., they employ a sophisticated, fully automated manufacturing process supported by the most technologically advanced equipment available â€“ from crystallization to moduling.
At SolarWorld they test, test, and test again. They carry out many more tests than required by international standards. In fact, every component they use must meet at least 3 times IEC requirements. These tests help improve the quality of their products by providing valuable information on the behavior of our solar modules. By using this data they can extend the life of the products, improve their properties and reduce error rates. IEC tests are regularly performed on random solar modules taken from SolarWorld production sites to ensure the high reliability of our products even after they are introduced.
Potential induced degradation (PID) is a phenomenon where the power output of a solar module is reduced when exposed to high negative voltage bias between the cells and ground. PID can potentially affect the performance of individual modules as well as the overall power output and efficiency of an entire solar power generating system. SolarWorld Sunmodules have been certified as PID free by 3rd party laboratories.
The TÃœV Rheinland â€œPower Controlledâ€ inspection mark guarantees that an independent test provider certifies that the power ratings specified for our solar panels are maintained and regularly monitored. The performance of the SolarWorld solar panels exhibits a mere 2 percent measuring tolerance. No other manufacturer can claim such precise performance.
With a maximum load capacity of up to 5400 Pa (113 psf), SolarWorld Sunmodules are designed to withstand heavy accumulations of snow and ice.
Plusâ€‘Sorting guarantees highest system efficiency. SolarWorld only delivers modules that have greater than or equal to the nameplate rated power. The positive power tolerance guarantees utmost system efficiency. Only modules achieving or exceeding the designated nominal power in performance tests are dispatched. The power tolerance ranges between -0 Wp and +5 Wp.
Optimized surface structure: The proprietary surface coatings and granular texture of the Sunmodule’s front glass create two effects: the reduction of the light reflected from the outside (air-glass interface) and the internal trapping of the light reflected from the solar cells in the module (light-trapping). These two effects combine to make an extremely efficient and high performance PV module.
SolarWorld Sunmodules have passed the most severe IEC 61701 salt spray test conditions proving their resistance to salty air which makes them ideally suited for installation in coastal areas.
The certification to international standards provides additional assurance that SolarWorld panels are suitable for use in systems with greater than 600 Vdc string voltage.
In addition to reliability testing, SolarWorld partners with third party test laboratories during the preparation of their PAN file and participate in Outdoor Performance Index studies. By examining these tools and data, you as a customer can better mitigate your risk and increase your confidence that SolarWorld will deliver maximum returns on your solar investment for years to come.