Most people assume Yehuda Gittelson grew up wanting to work in solar. He didn't. He grew up in Bangor, studied mechanical engineering at UMaine, and took a job doing wind farm site assessments in Aroostook County because it was the renewable energy work that existed. When that ended, he drove south to Portland, got hired as a junior installer, and learned the trade from the roof down. This episode traces the full arc, from a college lecture hall to a wind ridge near the Canadian border to a rooftop in South Portland, and what he figured out along the way about the gap between a good energy resource and a working energy system.