ICC-SRCC OG-100 is the most widely recognized certification program for solar thermal collectors in North America, ensuring that certified products can be sold, incentivized and installed virtually anywhere in the region. These systems harness the suns energy to generate heat, which is then used for space heating, cooling, or producing hot water and steam. However, ensuring. IAPMO R&T has been certifying solar thermal products, both collectors and systems, since the technology enjoyed its first heyday in the mid-1970s For speed to market, credibility in name, and mark of conformity, as well as a complete certification program for all applicable North American codes and. Intertek provides certification services for Solar Thermal products through our network of laboratories including testing to various standards such as SRCC SD 100, OG 100, and EN 12975-1 Solar Thermal is one of the fastest growing technologies in the renewable energy market. It is one of the fastest growing technologies in the renewable energy industry. Our laboratory's services comply with the DIN/EN/ISOIEC 17025 norm. Published by ICC and ICC-SRCC, the standard sets minimum safety, durability and performance requirements for many types of solar thermal collectors.