The record breaking attendance at the recent Solar Power International 09 exhibition attests to the growing interest and demand of solar's potential to inspire a clean, renewable energy market. The conference, held in October in Anaheim, Calif., is the largest solar exhibition in North America. "The conference was a great catalyst to capture the enthusiasm of solar professionals and to use their knowledge and innovation to spark new technologies and design elements that maximize energy efficiency," stated Rex Gillespie, Caleffi's director of marketing.Caleffi Solar components were on display to an interested attendee audience. Caleffi debuted several new solar thermal products including commercial pumping stations , differential controllers for drain-back applications, and DC pumps and controllers. "The well-attended conference is an inspiration for the furthering of the renewable energy market and bright concepts to come," said Gillespie.