Solar Thermal Collectors

The ICC-SRCC™ OG-100 Solar Thermal Collector Certification Program provides certification for solar thermal collectors to the current ICC 901/SRCC 100 Solar Thermal Collector standard. The standard references the internationally-accepted test methods in the ISO 9806 standard. OG-100 addresses a wide range of collector types, including glazed and unglazed flat plate, evacuated tube, integrated collector storage, roof-integrated, concentrating, transpired, PV-thermal and even photovoltaic water heating collectors. OG-100 certification ensures that collectors meet minimum safety and durability criteria. It also provides standardized performance ratings for different climate types and applications. ICC-SRCC™ OG-100 ratings make it easy to compare collectors from various manufacturers on an equal basis. For consumers, designers and architects, the ICC-SRCC™ OG-100 directory is often their first stop to find and compare solar thermal collectors.

Incentive programs and regulations throughout North America recognize OG-100 certification. Check the DSIRE website for listings of solar water and pool heating programs that reference ICC-SRCC™'s OG-100 certification.

OG-100 Certified


*The link will take you to the gateway of our automated system. You will need to register to proceed. If you are already registered, you will be required to login.



To learn more about having your solar collector certified under the OG-100 certification program, click on any of the links provided, or contact us at

Some documents in this site are in a PDF file format. Go to Adobe© Acrobat© Reader™ to obtain a free version of the Reader™. PDF file links will open in a new browser window.

PDF logo