In the U.S., public schools are being constructed with energy efficiency and resource conservation in mind more than ever before. On the extreme end, net-zero schools are installing solar panels, ultra-efficient insulation, and high-efficiency HVAC systems to produce at least as much energy as they use. When building new facilities, school officials are expressing a concerted interest in reducing their carbon footprints, conserving finite resources, and providing a healthy and comfortable environment for students, teachers, and staff.