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The SRCC OG-300 Solar Thermal System Certification Program provides certification of complete solar thermal systems to the current ICC 9010/SRCC 300 Solar Thermal Systems Standard. The program ensures that these systems meet minimum criteria, and provide performance ratings for many locations in the U.S.

The program makes use of sophisticated computer models to provide performance ratings for solar thermal systems instead of impractical and expensive laboratory testing. These models calculate the performance of the system using the testing results from the SRCC OG-100 Collector Certification Program and the characteristics of other components in the system such as tanks, heat exchangers, pumps and control systems. The result is performance estimates for the specific system (solar fractions, solar energy factors and energy savings) for locations throughout the U.S. This information allows various systems to be compared directly and consistently.

Dozens of incentive programs and regulations nationwide recognize and require SRCC OG-300 certification. Check the DSIRE website for solar water heating incentive programs that reference SRCC's OG-300 certification.

OG-300 Certified

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BENEFITS

To learn more about SRCC's OG-300 certification program, click on any of the links below, or contact us at apply@solar-rating.org.

SRCC OG-300® MODELING SERVICE

Are you considering making changes to your existing SRCC OG-300 certified systems? Would you like to understand what the impact might be on your ratings?

This low-cost service allows SRCC OG-300 program participants to see the result of system design variations to learn what impact they will have on the performance ratings. Modeling provides results that will include the daily Solar Fraction (SF) and Solar Energy Factor (SEF) and the annual SF and SEF in four locations for the revised system. Ratings are provided for Phoenix, AZ (high solar radiation), Madison, WI (low solar radiation) and two additional cities of choice. Click here for more information: SRCC OG-300® Modeling Service Description PDF Icon

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