Welcome to SETS energy storage systems, especially relevant to California’s Title 24 code compliance requirements. SETS is a solar electric energy source that utilizes photoelectric collectors to make domestic hot water stored in a super insulated storage tank. SETS is used to supplement the primary domestic hot water heating systems as a preheater. The SETS high net solar fraction assures the most cost effective and valuable compliance option credits for all 16 California climate zones. The SETS storage tank sets the bar on quality with an expected life of 30 years, and is impervious to hard water and chloride water quality conditions that ordinarily shorten the life of typical water heaters.