New Day School is a preschool in southeast Portland based in Neo-Humanist philosophy helping children see interconnections and develop deep love and respect for all. We applied Passive House principles to transform two older, inefficient school buildings into healthy learning environments that foster a connection to the outdoors, a sense of community, and a feeling of tranquility and security. With the addition of a 45.5-KW rooftop solar array, New Day became Oregon's first Zero Energy preschool. One year post-occupancy, it's actually producing more energy than it consumes on an annual basis.