Net zero energy describes buildings whose energy consumption and emissions are fully offset by renewable energy, preferably generated on site. True to their net zero name, they generate as much or more clean energy as they consume.
The new addition to Calvert High School in Prince Frederick, Md., celebrates the sun, inviting daylight into virtually every corner of its multi-use media center. The addition features huge skylights that are 31 to 41 ft above the floor, more than 35 ft long, and pitched at a 16-deg angle. The skylights span 17,000 sq ft.