UL provides our customers with access to a global network of technical experts who understand local, regional and national requirements and who serve as a trustworthy single source for our customers’ testing, certification and compliance needs.

We help our customers determine and understand applicable market requirements. We work with our customers and with Authorities Having Jurisdiction (AHJs) to define the grid code requirements for a specific installation and to design a customized testing program to meet the defined specifications. We also design tests for special situations such as the use of noncertified components, or for demonstrating to regulatory authorities that the mitigating means noted in the failure mode and effects analysis (FMEA) will operate as intended.

We test power inverters, converters and controllers to the requirements of UL 1741 and all other key standards, including IEC 62109, UL 62109 and local grid codes such as IEEE 1547. The extent and scope of testing is determined in part by whether the product is a stand-alone unit or intended for interconnection with a local utility.

Our global market access experts provide our customers with the information and resources needed to export and install equipment across the global marketplace. We have ISO 17025-accredited test facilities in Asia, Europe and North America. Our worldwide marketplace expertise enables us to design a comprehensive testing program that saves costs and time, and helps us deliver a seamless, speedy entry into all target markets.