A variety of horticultural products are grown indoors either in greenhouses or, increasingly, in fully-enclosed buildings. To be successful, cultivators must create the optimal growing conditions for a commercial crop, using artificial lighting, heating and cooling, and dehumidification to mimic the ideal outdoor environmental conditions favored by each plant. It takes a lot of energy to create these conditions, making indoor agriculture–also known as controlled environment agriculture (CEA)—an energy-intensive endeavor. As the industry experiences a surge of interest and increased investment, greater attention is being paid to opportunities for energy efficiency. In this webinar, ACEEE summarized the findings of a new brief in its Emerging Opportunities in Buildings Series covering controlled environment agriculture.