Energy, and the availability of it, is a growing concern in California. Through daylighting and other energy-efficient measures your district can reduce costs and improve learning environments, while assisting your communities in their efficiency efforts. Studies have shown that the use of natural light in a classroom environment improves test scores. At Juan de Anza, students and staff enjoy indirect day-lighting through tinted double glazed windows in the classrooms, and clerestories used throughout the corridors. The architectural design of Juan de Anza Elementary School in the Wiseburn School District, is structured to maximize energy efficiency, while significantly reducing long-term operating costs. An integrated energy management system is found throughout the school. The HVAC system utilizes separate time clocks for specific areas (administration, kindergarten, etc.), manual override and 'economizer' controls - outside air is used for 100 percent ventilation cooling when temperatures are mild, as is often the case in this coastal community. Energy efficient construction materials, such as R-19 insulation at all framed exterior walls, R-30 insulation in the roof systems and tinted (Solar Green) double glazed windows are used. These materials contribute to an increased "R" (temperature resistance) value, keeping the building cooler in summer, and warmer in winter. The classroom wings are oriented east and west to provide maximum solar orientation. Control of direct daylighting (which can overheat classrooms) is evident in the use of trellis' that protect the classroom window glazing, and other glass areas. In addition, screen walls are used to block or diffuse excess daylight. Further examples of efficiency are seen in the use of occupancy sensors in conjunction with high-efficiency T-8 lighting in the interiors. T-8 lighting emits less heat, and produces a better lighting distribution, while using less overall electricity. The administration building of Mira Costa High School in the Manhattan Beach Unified School District is also a great example of the use of daylighting. Southern California Edison CTSC (Customer Technology Service Center) performed light quality and energy efficiency studies on study models of the school's first two new buildings. The studies examined interior natural lighting conditions at different times of the day, during different seasons of the year. The results obtained aided designers in modifying the building design (interior and exterior) to make electric lighting more effective and efficient as it interfaces with natural lighting. Light quality and energy efficiency studies were performed by Southern California Edison CTSC (Customer Technology Service Center) on study models of Mira Costa High School's first two new buildings. The studies examined interior natural lighting conditions at different times of the day, during different seasons of the year. The results aided designers in modifying the building design to make electric lighting more effective and efficient as it interfaces with natural lighting. A generous amount of natural light will move through the school's new administration building. Canopies over the building's entryways will allow for not only an attractive view of the school, but will also contribute to blocking some of the sun's beating heat. Most of the daylight entering the building will come from the sides of the buildings, rather than the top.