Twenty-four building biology faculty, practitioners, students and friends from several states attended a study day in Orange County, California on October 10, 2015. In addition to giving the participants practice in conducting an EMF survey of the home, building biologist Michael Schwaebe gave a follow-up presentation on dirty electricity from solar panel inverters. Michael also showed a video of his talk on the subject at the IBE Conference in Seattle in July 2015, available from the IBE website.