SolarWorld's Sunmodule Plus 220-watt polycrystalline solar panels are IEC und UL compliant and are a good choice for most any solar application. SW220 solar panels tout a +/-3% tolerance rating. SolarWorld modules are manufactured in the United States, qualifying them for tax benefits under the American Reinvestment and Recovery Act (ARRA). SolarWorlds facilities are some of the most environmentally sustainable production plants in the world. 

Sunmodules Plus Sorting ensures that their SW 220-watt modules are true to their nameplate rating. SolarWorlds patented Sunbox junction box is completely sealed to withstand harsh environmental conditions.  The modules rugged frame design offers superior durability, withstanding static loads of up to 113 psf. SolarWorld proudly backs up each module with a 5-year workmanship warranty and a 25-year linear performance linear performance guarantee.